Merge pull request #1435 from bthebaudeau/cc2538-hw-llsec

cc2538: Add support for hardware-accelerated llsec

core/lib/aes-128.c

@@ -167,17 +167,6 @@ encrypt(uint8_t *state)
 }
 /*---------------------------------------------------------------------------*/
 void
-aes_128_padded_encrypt(uint8_t *plaintext_and_result, uint8_t plaintext_len)
-{
-  uint8_t block[AES_128_BLOCK_SIZE];
-  
-  memset(block, 0, AES_128_BLOCK_SIZE);
-  memcpy(block, plaintext_and_result, plaintext_len);
-  AES_128.encrypt(block);
-  memcpy(plaintext_and_result, block, plaintext_len);
-}
-/*---------------------------------------------------------------------------*/
-void
 aes_128_set_padded_key(uint8_t *key, uint8_t key_len)
 {
   uint8_t block[AES_128_BLOCK_SIZE];

core/lib/aes-128.h

@@ -37,8 +37,8 @@
  *         Konrad Krentz <konrad.krentz@gmail.com>
  */
 
-#ifndef AES_H_
+#ifndef AES_128_H_
-#define AES_H_
+#define AES_128_H_
 
 #include "contiki.h"
 
@@ -67,11 +67,6 @@ struct aes_128_driver {
   void (* encrypt)(uint8_t *plaintext_and_result);
 };
 
-/**
- * \brief Pads the plaintext with zeroes before calling AES_128.encrypt
- */
-void aes_128_padded_encrypt(uint8_t *plaintext_and_result, uint8_t plaintext_len);
-
 /**
  * \brief Pads the key with zeroes before calling AES_128.set_key
  */
@@ -79,4 +74,4 @@ void aes_128_set_padded_key(uint8_t *key, uint8_t key_len);
 
 extern const struct aes_128_driver AES_128;
 
-#endif /* AES_H_ */
+#endif /* AES_128_H_ */

core/net/netstack.c

@@ -44,6 +44,7 @@ netstack_init(void)
 {
   NETSTACK_RADIO.init();
   NETSTACK_RDC.init();
+  NETSTACK_LLSEC.init();
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 }

cpu/cc2538/Makefile.cc2538

@@ -53,7 +53,8 @@ CONTIKI_CPU_DIRS += ../cc253x/usb/common ../cc253x/usb/common/cdc-acm
 ### CPU-dependent source files
 CONTIKI_CPU_SOURCEFILES += clock.c rtimer-arch.c uart.c watchdog.c
 CONTIKI_CPU_SOURCEFILES += nvic.c cpu.c sys-ctrl.c gpio.c ioc.c spi.c adc.c
-CONTIKI_CPU_SOURCEFILES += crypto.c aes.c ccm.c sha256.c
+CONTIKI_CPU_SOURCEFILES += crypto.c aes.c ecb.c ccm.c sha256.c
+CONTIKI_CPU_SOURCEFILES += cc2538-aes-128.c cc2538-ccm-star.c
 CONTIKI_CPU_SOURCEFILES += cc2538-rf.c udma.c lpm.c
 CONTIKI_CPU_SOURCEFILES += pka.c bignum-driver.c ecc-driver.c ecc-algorithm.c
 CONTIKI_CPU_SOURCEFILES += ecc-curve.c

cpu/cc2538/dev/aes.c

@@ -42,9 +42,11 @@
  */
 #include "contiki.h"
 #include "dev/rom-util.h"
+#include "dev/nvic.h"
 #include "dev/aes.h"
 #include "reg.h"
 
+#include <stdbool.h>
 #include <stdint.h>
 /*---------------------------------------------------------------------------*/
 uint8_t
@@ -53,7 +55,7 @@ aes_load_keys(const void *keys, uint8_t key_size, uint8_t count,
 {
   uint32_t aes_key_store_size;
   uint32_t areas;
-  uint64_t aligned_keys[16];
+  uint64_t aligned_keys[AES_KEY_AREAS * 128 / 8 / sizeof(uint64_t)];
   int i;
 
   if(REG(AES_CTRL_ALG_SEL) != 0x00000000) {
@@ -63,7 +65,8 @@ aes_load_keys(const void *keys, uint8_t key_size, uint8_t count,
   /* 192-bit keys must be padded to 256 bits */
   if(key_size == AES_KEY_STORE_SIZE_KEY_SIZE_192) {
     for(i = 0; i < count; i++) {
-      rom_util_memcpy(&aligned_keys[i << 2], &((uint64_t *)keys)[i * 3], 24);
+      rom_util_memcpy(&aligned_keys[i << 2], &((const uint64_t *)keys)[i * 3],
+                      192 / 8);
       aligned_keys[(i << 2) + 3] = 0;
     }
   }
@@ -148,5 +151,181 @@ aes_load_keys(const void *keys, uint8_t key_size, uint8_t count,
 
   return CRYPTO_SUCCESS;
 }
+/*---------------------------------------------------------------------------*/
+uint8_t
+aes_auth_crypt_start(uint32_t ctrl, uint8_t key_area, const void *iv,
+                     const void *adata, uint16_t adata_len,
+                     const void *data_in, void *data_out, uint16_t data_len,
+                     struct process *process)
+{
+  if(REG(AES_CTRL_ALG_SEL) != 0x00000000) {
+    return CRYPTO_RESOURCE_IN_USE;
+  }
+
+  /* Workaround for AES registers not retained after PM2 */
+  REG(AES_CTRL_INT_CFG) = AES_CTRL_INT_CFG_LEVEL;
+  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_DMA_IN_DONE |
+                         AES_CTRL_INT_EN_RESULT_AV;
+
+  REG(AES_CTRL_ALG_SEL) = AES_CTRL_ALG_SEL_AES;
+  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
+                          AES_CTRL_INT_CLR_RESULT_AV;
+
+  REG(AES_KEY_STORE_READ_AREA) = key_area;
+
+  /* Wait until key is loaded to the AES module */
+  while(REG(AES_KEY_STORE_READ_AREA) & AES_KEY_STORE_READ_AREA_BUSY);
+
+  /* Check for Key Store read error */
+  if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
+    /* Clear the Keystore Read error bit */
+    REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
+    /* Disable the master control / DMA clock */
+    REG(AES_CTRL_ALG_SEL) = 0x00000000;
+    return AES_KEYSTORE_READ_ERROR;
+  }
+
+  if(iv != NULL) {
+    /* Write initialization vector */
+    REG(AES_AES_IV_0) = ((const uint32_t *)iv)[0];
+    REG(AES_AES_IV_1) = ((const uint32_t *)iv)[1];
+    REG(AES_AES_IV_2) = ((const uint32_t *)iv)[2];
+    REG(AES_AES_IV_3) = ((const uint32_t *)iv)[3];
+  }
+
+  /* Program AES authentication/crypto operation */
+  REG(AES_AES_CTRL) = ctrl;
+
+  /* Write the length of the payload block (lo) */
+  REG(AES_AES_C_LENGTH_0) = data_len;
+  /* Write the length of the payload block (hi) */
+  REG(AES_AES_C_LENGTH_1) = 0;
+
+  /* For combined modes only (CCM or GCM) */
+  if(ctrl & (AES_AES_CTRL_CCM | AES_AES_CTRL_GCM)) {
+    /* Write the length of the AAD data block (may be non-block size-aligned) */
+    REG(AES_AES_AUTH_LENGTH) = adata_len;
+
+    if(adata_len != 0) {
+      /* Configure DMAC to fetch the AAD data
+       * Enable DMA channel 0 */
+      REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
+      /* Base address of the AAD data buffer */
+      REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)adata;
+      /* AAD data length in bytes */
+      REG(AES_DMAC_CH0_DMALENGTH) = adata_len;
+
+      /* Wait for completion of the AAD data transfer, DMA_IN_DONE */
+      while(!(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_IN_DONE));
+
+      /* Check for the absence of error */
+      if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
+        /* Clear the DMA error */
+        REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR;
+        /* Disable the master control / DMA clock */
+        REG(AES_CTRL_ALG_SEL) = 0x00000000;
+        return CRYPTO_DMA_BUS_ERROR;
+      }
+    }
+  }
+
+  /* Clear interrupt status */
+  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
+                          AES_CTRL_INT_CLR_RESULT_AV;
+
+  if(process != NULL) {
+    crypto_register_process_notification(process);
+    nvic_interrupt_unpend(NVIC_INT_AES);
+    nvic_interrupt_enable(NVIC_INT_AES);
+  }
+
+  /* Enable result available bit in interrupt enable */
+  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_RESULT_AV;
+
+  if(data_len != 0) {
+    /* Configure DMAC
+     * Enable DMA channel 0 */
+    REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
+    /* Base address of the input payload data buffer */
+    REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)data_in;
+    /* Input payload data length in bytes */
+    REG(AES_DMAC_CH0_DMALENGTH) = data_len;
+
+    if(data_out != NULL) {
+      /* Enable DMA channel 1 */
+      REG(AES_DMAC_CH1_CTRL) = AES_DMAC_CH_CTRL_EN;
+      /* Base address of the output payload data buffer */
+      REG(AES_DMAC_CH1_EXTADDR) = (uint32_t)data_out;
+      /* Output payload data length in bytes */
+      REG(AES_DMAC_CH1_DMALENGTH) = data_len;
+    }
+  }
+
+  return CRYPTO_SUCCESS;
+}
+/*---------------------------------------------------------------------------*/
+uint8_t
+aes_auth_crypt_check_status(void)
+{
+  return !!(REG(AES_CTRL_INT_STAT) &
+            (AES_CTRL_INT_STAT_DMA_BUS_ERR | AES_CTRL_INT_STAT_KEY_ST_WR_ERR |
+             AES_CTRL_INT_STAT_KEY_ST_RD_ERR | AES_CTRL_INT_STAT_RESULT_AV));
+}
+/*---------------------------------------------------------------------------*/
+uint8_t
+aes_auth_crypt_get_result(void *iv, void *tag)
+{
+  uint32_t aes_ctrl_int_stat;
+
+  aes_ctrl_int_stat = REG(AES_CTRL_INT_STAT);
+  /* Clear the error bits */
+  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR |
+                          AES_CTRL_INT_CLR_KEY_ST_WR_ERR |
+                          AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
+
+  nvic_interrupt_disable(NVIC_INT_AES);
+  crypto_register_process_notification(NULL);
+
+  /* Disable the master control / DMA clock */
+  REG(AES_CTRL_ALG_SEL) = 0x00000000;
+
+  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
+    return CRYPTO_DMA_BUS_ERROR;
+  }
+  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_WR_ERR) {
+    return AES_KEYSTORE_WRITE_ERROR;
+  }
+  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
+    return AES_KEYSTORE_READ_ERROR;
+  }
+
+  if(iv != NULL || tag != NULL) {
+    /* Read result
+     * Wait for the context ready bit */
+    while(!(REG(AES_AES_CTRL) & AES_AES_CTRL_SAVED_CONTEXT_READY));
+
+    if(iv != NULL) {
+      /* Read the initialization vector registers */
+      ((uint32_t *)iv)[0] = REG(AES_AES_IV_0);
+      ((uint32_t *)iv)[1] = REG(AES_AES_IV_1);
+      ((uint32_t *)iv)[2] = REG(AES_AES_IV_2);
+      ((uint32_t *)iv)[3] = REG(AES_AES_IV_3);
+    }
+
+    if(tag != NULL) {
+      /* Read the tag registers */
+      ((uint32_t *)tag)[0] = REG(AES_AES_TAG_OUT_0);
+      ((uint32_t *)tag)[1] = REG(AES_AES_TAG_OUT_1);
+      ((uint32_t *)tag)[2] = REG(AES_AES_TAG_OUT_2);
+      ((uint32_t *)tag)[3] = REG(AES_AES_TAG_OUT_3);
+    }
+  }
+
+  /* Clear the interrupt status */
+  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
+                          AES_CTRL_INT_CLR_RESULT_AV;
+
+  return CRYPTO_SUCCESS;
+}
 
 /** @} */

cpu/cc2538/dev/aes.h

@@ -51,6 +51,7 @@
 #include "contiki.h"
 #include "dev/crypto.h"
 
+#include <stdbool.h>
 #include <stdint.h>
 /*---------------------------------------------------------------------------*/
 /** \name AES register offsets
@@ -464,6 +465,16 @@
  */
 #define AES_KEYSTORE_READ_ERROR       5
 #define AES_KEYSTORE_WRITE_ERROR      6
+#define AES_AUTHENTICATION_FAILED     7
+/** @} */
+/*---------------------------------------------------------------------------*/
+/** \name AES constants
+ * @{
+ */
+#define AES_KEY_AREAS   8
+#define AES_BLOCK_LEN   (128 / 8)
+#define AES_IV_LEN      AES_BLOCK_LEN
+#define AES_TAG_LEN     AES_BLOCK_LEN
 /** @} */
 /*---------------------------------------------------------------------------*/
 /** \name AES functions
@@ -473,10 +484,11 @@
 /** \brief Writes keys into the Key RAM
  * \param keys Pointer to AES Keys
  * \param key_size Key size: \c AES_KEY_STORE_SIZE_KEY_SIZE_x
- * \param count Number of keys (1 to 8 - \p start_area for 128-bit keys, 1 to
+ * \param count Number of keys (1 to \c AES_KEY_AREAS - \p start_area for
- * (8 - \p start_area) / 2 for 192- and 256-bit keys)
+ * 128-bit keys, 1 to (\c AES_KEY_AREAS - \p start_area) / 2 for 192- and
- * \param start_area Start area in Key RAM where to store the key (0 to 7, must
+ * 256-bit keys)
- * be even for 192- and 256-bit keys)
+ * \param start_area Start area in Key RAM where to store the keys (0 to
+ * \c AES_KEY_AREAS - 1, must be even for 192- and 256-bit keys)
  * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES error code
  * \note Calling this function with a value of \p key_size different from the
  * one passed for the previous calls causes the deletion of all previously
@@ -485,6 +497,43 @@
 uint8_t aes_load_keys(const void *keys, uint8_t key_size, uint8_t count,
                       uint8_t start_area);
 
+/** \brief Starts an AES authentication/crypto operation
+ * \param ctrl Contents of the \c AES_AES_CTRL register
+ * \param key_area Area in Key RAM where the key is stored (0 to
+ * \c AES_KEY_AREAS - 1)
+ * \param iv Pointer to 128-bit initialization vector, or \c NULL
+ * \param adata Pointer to additional authenticated data in SRAM, or \c NULL
+ * \param adata_len Length of additional authenticated data in octets, or \c 0
+ * \param data_in Pointer to input payload data in SRAM, or \c NULL
+ * \param data_out Pointer to output payload data in SRAM (may be \p data_in),
+ * or \c NULL
+ * \param data_len Length of payload data in octets, or \c 0
+ * \param process Process to be polled upon completion of the operation, or
+ * \c NULL
+ * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES error code
+ * \note This function is only supposed to be called by the AES drivers.
+ */
+uint8_t aes_auth_crypt_start(uint32_t ctrl, uint8_t key_area, const void *iv,
+                             const void *adata, uint16_t adata_len,
+                             const void *data_in, void *data_out,
+                             uint16_t data_len, struct process *process);
+
+/** \brief Checks the status of the AES authentication/crypto operation
+ * \retval false Result not yet available, and no error occurred
+ * \retval true Result available, or error occurred
+ * \note This function is only supposed to be called by the AES drivers.
+ */
+uint8_t aes_auth_crypt_check_status(void);
+
+/** \brief Gets the result of the AES authentication/crypto operation
+ * \param iv Pointer to 128-bit result initialization vector, or \c NULL
+ * \param tag Pointer to 128-bit result tag, or \c NULL
+ * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES error code
+ * \note This function must be called only after \c aes_auth_crypt_start().
+ * \note This function is only supposed to be called by the AES drivers.
+ */
+uint8_t aes_auth_crypt_get_result(void *iv, void *tag);
+
 /** @} */
 
 #endif /* AES_H_ */

cpu/cc2538/dev/cc2538-aes-128.c

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2015, Hasso-Plattner-Institut.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+/**
+ * \addtogroup cc2538-aes-128
+ * @{
+ *
+ * \file
+ *         Implementation of the AES-128 driver for the CC2538 SoC
+ * \author
+ *         Konrad Krentz <konrad.krentz@gmail.com>
+ */
+#include "contiki.h"
+#include "dev/ecb.h"
+#include "dev/cc2538-aes-128.h"
+
+#include <stdint.h>
+#include <stdio.h>
+/*---------------------------------------------------------------------------*/
+#define MODULE_NAME     "cc2538-aes-128"
+
+#define DEBUG 0
+#if DEBUG
+#define PRINTF(...) printf(__VA_ARGS__)
+#else
+#define PRINTF(...)
+#endif
+/*---------------------------------------------------------------------------*/
+static uint8_t
+enable_crypto(void)
+{
+  uint8_t enabled = CRYPTO_IS_ENABLED();
+  if(!enabled) {
+    crypto_enable();
+  }
+  return enabled;
+}
+/*---------------------------------------------------------------------------*/
+static void
+restore_crypto(uint8_t enabled)
+{
+  if(!enabled) {
+    crypto_disable();
+  }
+}
+/*---------------------------------------------------------------------------*/
+static void
+set_key(const uint8_t *key)
+{
+  uint8_t crypto_enabled, ret;
+
+  crypto_enabled = enable_crypto();
+
+  ret = aes_load_keys(key, AES_KEY_STORE_SIZE_KEY_SIZE_128, 1,
+                      CC2538_AES_128_KEY_AREA);
+  if(ret != CRYPTO_SUCCESS) {
+    PRINTF("%s: aes_load_keys() error %u\n", MODULE_NAME, ret);
+  }
+
+  restore_crypto(crypto_enabled);
+}
+/*---------------------------------------------------------------------------*/
+static void
+encrypt(uint8_t *plaintext_and_result)
+{
+  uint8_t crypto_enabled, ret;
+  int8_t res;
+
+  crypto_enabled = enable_crypto();
+
+  ret = ecb_crypt_start(true, CC2538_AES_128_KEY_AREA, plaintext_and_result,
+                        plaintext_and_result, AES_128_BLOCK_SIZE, NULL);
+  if(ret != CRYPTO_SUCCESS) {
+    PRINTF("%s: ecb_crypt_start() error %u\n", MODULE_NAME, ret);
+    restore_crypto(crypto_enabled);
+    return;
+  }
+
+  while((res = ecb_crypt_check_status()) == CRYPTO_PENDING);
+  if(res != CRYPTO_SUCCESS) {
+    PRINTF("%s: ecb_crypt_check_status() error %d\n", MODULE_NAME, res);
+  }
+
+  restore_crypto(crypto_enabled);
+}
+/*---------------------------------------------------------------------------*/
+const struct aes_128_driver cc2538_aes_128_driver = {
+  set_key,
+  encrypt
+};
+
+/** @} */

cpu/cc2538/dev/cc2538-aes-128.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015, Hasso-Plattner-Institut.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+/**
+ * \addtogroup cc2538-aes
+ * @{
+ *
+ * \defgroup cc2538-aes-128 CC2538 AES-128
+ *
+ * AES-128 driver for the CC2538 SoC
+ * @{
+ *
+ * \file
+ *         Header file of the AES-128 driver for the CC2538 SoC
+ * \author
+ *         Konrad Krentz <konrad.krentz@gmail.com>
+ */
+#ifndef CC2538_AES_128_H_
+#define CC2538_AES_128_H_
+
+#include "lib/aes-128.h"
+/*---------------------------------------------------------------------------*/
+#ifdef CC2538_AES_128_CONF_KEY_AREA
+#define CC2538_AES_128_KEY_AREA         CC2538_AES_128_CONF_KEY_AREA
+#else
+#define CC2538_AES_128_KEY_AREA         0
+#endif
+/*---------------------------------------------------------------------------*/
+extern const struct aes_128_driver cc2538_aes_128_driver;
+
+#endif /* CC2538_AES_128_H_ */
+
+/**
+ * @}
+ * @}
+ */

cpu/cc2538/dev/cc2538-ccm-star.c

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2015, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * \addtogroup cc2538-ccm-star
+ * @{
+ *
+ * \file
+ * Implementation of the AES-CCM* driver for the CC2538 SoC
+ */
+#include "contiki.h"
+#include "dev/ccm.h"
+#include "dev/cc2538-aes-128.h"
+#include "dev/cc2538-ccm-star.h"
+
+#include <stdint.h>
+#include <stdio.h>
+/*---------------------------------------------------------------------------*/
+#define MODULE_NAME     "cc2538-ccm-star"
+
+#define CCM_STAR_LEN_LEN        (CCM_NONCE_LEN_LEN - CCM_STAR_NONCE_LENGTH)
+
+#define DEBUG 0
+#if DEBUG
+#define PRINTF(...) printf(__VA_ARGS__)
+#else
+#define PRINTF(...)
+#endif
+/*---------------------------------------------------------------------------*/
+static uint8_t
+enable_crypto(void)
+{
+  uint8_t enabled = CRYPTO_IS_ENABLED();
+  if(!enabled) {
+    crypto_enable();
+  }
+  return enabled;
+}
+/*---------------------------------------------------------------------------*/
+static void
+restore_crypto(uint8_t enabled)
+{
+  if(!enabled) {
+    crypto_disable();
+  }
+}
+/*---------------------------------------------------------------------------*/
+static void
+set_key(const uint8_t *key)
+{
+  cc2538_aes_128_driver.set_key(key);
+}
+/*---------------------------------------------------------------------------*/
+static void
+aead(const uint8_t *nonce, uint8_t *m, uint8_t m_len, const uint8_t *a,
+     uint8_t a_len, uint8_t *result, uint8_t mic_len, int forward)
+{
+  uint16_t cdata_len;
+  uint8_t crypto_enabled, ret;
+
+  crypto_enabled = enable_crypto();
+
+  if(forward) {
+    ret = ccm_auth_encrypt_start(CCM_STAR_LEN_LEN, CC2538_AES_128_KEY_AREA,
+                                 nonce, a, a_len, m, m_len, m, mic_len, NULL);
+    if(ret != CRYPTO_SUCCESS) {
+      PRINTF("%s: ccm_auth_encrypt_start() error %u\n", MODULE_NAME, ret);
+      restore_crypto(crypto_enabled);
+      return;
+    }
+
+    while(!ccm_auth_encrypt_check_status());
+    ret = ccm_auth_encrypt_get_result(result, mic_len);
+    if(ret != CRYPTO_SUCCESS) {
+      PRINTF("%s: ccm_auth_encrypt_get_result() error %u\n", MODULE_NAME, ret);
+    }
+  } else {
+    cdata_len = m_len + mic_len;
+    ret = ccm_auth_decrypt_start(CCM_STAR_LEN_LEN, CC2538_AES_128_KEY_AREA,
+                                 nonce, a, a_len, m, cdata_len, m, mic_len,
+                                 NULL);
+    if(ret != CRYPTO_SUCCESS) {
+      PRINTF("%s: ccm_auth_decrypt_start() error %u\n", MODULE_NAME, ret);
+      restore_crypto(crypto_enabled);
+      return;
+    }
+
+    while(!ccm_auth_decrypt_check_status());
+    ret = ccm_auth_decrypt_get_result(m, cdata_len, result, mic_len);
+    if(ret != CRYPTO_SUCCESS) {
+      PRINTF("%s: ccm_auth_decrypt_get_result() error %u\n", MODULE_NAME, ret);
+    }
+  }
+
+  restore_crypto(crypto_enabled);
+}
+/*---------------------------------------------------------------------------*/
+const struct ccm_star_driver cc2538_ccm_star_driver = {
+  set_key,
+  aead
+};
+
+/** @} */

cpu/cc2538/dev/cc2538-ccm-star.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2015, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * \addtogroup cc2538-aes
+ * @{
+ *
+ * \defgroup cc2538-ccm-star CC2538 AES-CCM*
+ *
+ * AES-CCM* driver for the CC2538 SoC
+ * @{
+ *
+ * \file
+ * Header file of the AES-CCM* driver for the CC2538 SoC
+ */
+#ifndef CC2538_CCM_STAR_H_
+#define CC2538_CCM_STAR_H_
+
+#include "lib/ccm-star.h"
+/*---------------------------------------------------------------------------*/
+extern const struct ccm_star_driver cc2538_ccm_star_driver;
+
+#endif /* CC2538_CCM_STAR_H_ */
+
+/**
+ * @}
+ * @}
+ */

cpu/cc2538/dev/ccm.c

@@ -43,371 +43,100 @@
 #include "contiki.h"
 #include "sys/cc.h"
 #include "dev/rom-util.h"
-#include "dev/nvic.h"
 #include "dev/ccm.h"
-#include "reg.h"
 
 #include <stdbool.h>
 #include <stdint.h>
 /*---------------------------------------------------------------------------*/
-uint8_t
+static uint8_t
-ccm_auth_encrypt_start(uint8_t len_len, uint8_t key_area, const void *nonce,
+ccm_auth_crypt_start(uint8_t encrypt, uint8_t len_len, uint8_t key_area,
-                       const void *adata, uint16_t adata_len, void *pdata,
+                     const void *nonce, const void *adata, uint16_t adata_len,
-                       uint16_t pdata_len, uint8_t mic_len,
+                     const void *data_in, void *data_out, uint16_t data_len,
-                       struct process *process)
+                     uint8_t mic_len, struct process *process)
 {
-  uint32_t iv[4];
+  uint32_t ctrl;
+  uint32_t iv[AES_IV_LEN / sizeof(uint32_t)];
 
-  if(REG(AES_CTRL_ALG_SEL) != 0x00000000) {
+  /* Program AES-CCM authentication/crypto operation */
-    return CRYPTO_RESOURCE_IN_USE;
+  ctrl = AES_AES_CTRL_SAVE_CONTEXT |                         /* Save context */
-  }
-
-  /* Workaround for AES registers not retained after PM2 */
-  REG(AES_CTRL_INT_CFG) = AES_CTRL_INT_CFG_LEVEL;
-  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_DMA_IN_DONE |
-                         AES_CTRL_INT_EN_RESULT_AV;
-
-  REG(AES_CTRL_ALG_SEL) = AES_CTRL_ALG_SEL_AES;
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
-                          AES_CTRL_INT_CLR_RESULT_AV;
-
-  REG(AES_KEY_STORE_READ_AREA) = key_area;
-
-  /* Wait until key is loaded to the AES module */
-  while(REG(AES_KEY_STORE_READ_AREA) & AES_KEY_STORE_READ_AREA_BUSY);
-
-  /* Check for Key Store read error */
-  if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
-    /* Clear the Keystore Read error bit */
-    REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
-    /* Disable the master control / DMA clock */
-    REG(AES_CTRL_ALG_SEL) = 0x00000000;
-    return AES_KEYSTORE_READ_ERROR;
-  }
-
-  /* Prepare the encryption initialization vector
-   * Flags: L' = L - 1 */
-  ((uint8_t *)iv)[0] = len_len - 1;
-  /* Nonce */
-  rom_util_memcpy(&((uint8_t *)iv)[1], nonce, 15 - len_len);
-  /* Initialize counter to 0 */
-  rom_util_memset(&((uint8_t *)iv)[16 - len_len], 0, len_len);
-
-  /* Write initialization vector */
-  REG(AES_AES_IV_0) = iv[0];
-  REG(AES_AES_IV_1) = iv[1];
-  REG(AES_AES_IV_2) = iv[2];
-  REG(AES_AES_IV_3) = iv[3];
-
-  /* Program AES-CCM encryption */
-  REG(AES_AES_CTRL) = AES_AES_CTRL_SAVE_CONTEXT |            /* Save context */
     (((MAX(mic_len, 2) - 2) >> 1) << AES_AES_CTRL_CCM_M_S) | /* M */
     ((len_len - 1) << AES_AES_CTRL_CCM_L_S) |                /* L */
     AES_AES_CTRL_CCM |                                       /* CCM */
     AES_AES_CTRL_CTR_WIDTH_128 |                             /* CTR width 128 */
     AES_AES_CTRL_CTR |                                       /* CTR */
-    AES_AES_CTRL_DIRECTION_ENCRYPT;                          /* Encryption */
+    (encrypt ? AES_AES_CTRL_DIRECTION_ENCRYPT : 0);          /* En/decryption */
 
-  /* Write the length of the crypto block (lo) */
+  /* Prepare the crypto initialization vector
-  REG(AES_AES_C_LENGTH_0) = pdata_len;
+   * Flags: L' = L - 1 */
-  /* Write the length of the crypto block (hi) */
+  ((uint8_t *)iv)[0] = len_len - 1;
-  REG(AES_AES_C_LENGTH_1) = 0;
+  /* Nonce */
+  rom_util_memcpy(&((uint8_t *)iv)[CCM_FLAGS_LEN], nonce,
+                  CCM_NONCE_LEN_LEN - len_len);
+  /* Initialize counter to 0 */
+  rom_util_memset(&((uint8_t *)iv)[AES_IV_LEN - len_len], 0, len_len);
 
-  /* Write the length of the AAD data block (may be non-block size-aligned) */
+  return aes_auth_crypt_start(ctrl, key_area, iv, adata, adata_len,
-  REG(AES_AES_AUTH_LENGTH) = adata_len;
+                              data_in, data_out, data_len, process);
+}
+/*---------------------------------------------------------------------------*/
+static uint8_t
+ccm_auth_crypt_get_result(const void *cdata, uint16_t cdata_len,
+                          void *mic, uint8_t mic_len)
+{
+  uint32_t tag[AES_TAG_LEN / sizeof(uint32_t)];
+  uint16_t data_len;
+  uint8_t ret;
 
-  if(adata_len != 0) {
+  ret = aes_auth_crypt_get_result(NULL, tag);
-    /* Configure DMAC to fetch the AAD data
+  if(ret != CRYPTO_SUCCESS) {
-     * Enable DMA channel 0 */
+    return ret;
-    REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
+  }
-    /* Base address of the AAD input data in ext. memory */
-    REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)adata;
-    /* AAD data length in bytes */
-    REG(AES_DMAC_CH0_DMALENGTH) = adata_len;
 
-    /* Wait for completion of the AAD data transfer, DMA_IN_DONE */
+  if(cdata != NULL) {
-    while(!(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_IN_DONE));
+    /* Check MIC */
-
+    data_len = cdata_len - mic_len;
-    /* Check for the absence of error */
+    if(rom_util_memcmp(tag, &((const uint8_t *)cdata)[data_len], mic_len)) {
-    if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
+      ret = AES_AUTHENTICATION_FAILED;
-      /* Clear the DMA error */
-      REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR;
-      /* Disable the master control / DMA clock */
-      REG(AES_CTRL_ALG_SEL) = 0x00000000;
-      return CRYPTO_DMA_BUS_ERROR;
     }
   }
 
-  /* Clear interrupt status */
+  /* Copy tag to MIC */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
+  rom_util_memcpy(mic, tag, mic_len);
-                          AES_CTRL_INT_CLR_RESULT_AV;
 
-  if(process != NULL) {
+  return ret;
-    crypto_register_process_notification(process);
-    nvic_interrupt_unpend(NVIC_INT_AES);
-    nvic_interrupt_enable(NVIC_INT_AES);
-  }
-
-  /* Enable result available bit in interrupt enable */
-  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_RESULT_AV;
-
-  if(pdata_len != 0) {
-    /* Configure DMAC
-     * Enable DMA channel 0 */
-    REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
-    /* Base address of the payload data in ext. memory */
-    REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)pdata;
-    /* Payload data length in bytes */
-    REG(AES_DMAC_CH0_DMALENGTH) = pdata_len;
-
-    /* Enable DMA channel 1 */
-    REG(AES_DMAC_CH1_CTRL) = AES_DMAC_CH_CTRL_EN;
-    /* Base address of the output data buffer */
-    REG(AES_DMAC_CH1_EXTADDR) = (uint32_t)pdata;
-    /* Output data length in bytes */
-    REG(AES_DMAC_CH1_DMALENGTH) = pdata_len;
-  }
-
-  return CRYPTO_SUCCESS;
 }
 /*---------------------------------------------------------------------------*/
 uint8_t
-ccm_auth_encrypt_check_status(void)
+ccm_auth_encrypt_start(uint8_t len_len, uint8_t key_area, const void *nonce,
+                       const void *adata, uint16_t adata_len, const void *pdata,
+                       uint16_t pdata_len, void *cdata, uint8_t mic_len,
+                       struct process *process)
 {
-  return !!(REG(AES_CTRL_INT_STAT) &
+  return ccm_auth_crypt_start(true, len_len, key_area, nonce, adata, adata_len,
-            (AES_CTRL_INT_STAT_DMA_BUS_ERR | AES_CTRL_INT_STAT_KEY_ST_WR_ERR |
+                              pdata, cdata, pdata_len, mic_len, process);
-             AES_CTRL_INT_STAT_KEY_ST_RD_ERR | AES_CTRL_INT_STAT_RESULT_AV));
 }
 /*---------------------------------------------------------------------------*/
 uint8_t
 ccm_auth_encrypt_get_result(void *mic, uint8_t mic_len)
 {
-  uint32_t aes_ctrl_int_stat;
+  return ccm_auth_crypt_get_result(NULL, 0, mic, mic_len);
-  uint32_t tag[4];
-
-  aes_ctrl_int_stat = REG(AES_CTRL_INT_STAT);
-  /* Clear the error bits */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR |
-                          AES_CTRL_INT_CLR_KEY_ST_WR_ERR |
-                          AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
-
-  nvic_interrupt_disable(NVIC_INT_AES);
-  crypto_register_process_notification(NULL);
-
-  /* Disable the master control / DMA clock */
-  REG(AES_CTRL_ALG_SEL) = 0x00000000;
-
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
-    return CRYPTO_DMA_BUS_ERROR;
-  }
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_WR_ERR) {
-    return AES_KEYSTORE_WRITE_ERROR;
-  }
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
-    return AES_KEYSTORE_READ_ERROR;
-  }
-
-  /* Read tag
-   * Wait for the context ready bit */
-  while(!(REG(AES_AES_CTRL) & AES_AES_CTRL_SAVED_CONTEXT_READY));
-
-  /* Read the tag registers */
-  tag[0] = REG(AES_AES_TAG_OUT_0);
-  tag[1] = REG(AES_AES_TAG_OUT_1);
-  tag[2] = REG(AES_AES_TAG_OUT_2);
-  tag[3] = REG(AES_AES_TAG_OUT_3);
-
-  /* Clear the interrupt status */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
-                          AES_CTRL_INT_CLR_RESULT_AV;
-
-  /* Copy tag to MIC */
-  rom_util_memcpy(mic, tag, mic_len);
-
-  return CRYPTO_SUCCESS;
 }
 /*---------------------------------------------------------------------------*/
 uint8_t
 ccm_auth_decrypt_start(uint8_t len_len, uint8_t key_area, const void *nonce,
-                       const void *adata, uint16_t adata_len, void *cdata,
+                       const void *adata, uint16_t adata_len, const void *cdata,
-                       uint16_t cdata_len, uint8_t mic_len,
+                       uint16_t cdata_len, void *pdata, uint8_t mic_len,
                        struct process *process)
 {
-  uint16_t pdata_len = cdata_len - mic_len;
+  uint16_t data_len = cdata_len - mic_len;
-  uint32_t iv[4];
 
-  if(REG(AES_CTRL_ALG_SEL) != 0x00000000) {
+  return ccm_auth_crypt_start(false, len_len, key_area, nonce, adata, adata_len,
-    return CRYPTO_RESOURCE_IN_USE;
+                              cdata, pdata, data_len, mic_len, process);
-  }
-
-  /* Workaround for AES registers not retained after PM2 */
-  REG(AES_CTRL_INT_CFG) = AES_CTRL_INT_CFG_LEVEL;
-  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_DMA_IN_DONE |
-                         AES_CTRL_INT_EN_RESULT_AV;
-
-  REG(AES_CTRL_ALG_SEL) = AES_CTRL_ALG_SEL_AES;
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
-                          AES_CTRL_INT_CLR_RESULT_AV;
-
-  REG(AES_KEY_STORE_READ_AREA) = key_area;
-
-  /* Wait until key is loaded to the AES module */
-  while(REG(AES_KEY_STORE_READ_AREA) & AES_KEY_STORE_READ_AREA_BUSY);
-
-  /* Check for Key Store read error */
-  if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
-    /* Clear the Keystore Read error bit */
-    REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
-    /* Disable the master control / DMA clock */
-    REG(AES_CTRL_ALG_SEL) = 0x00000000;
-    return AES_KEYSTORE_READ_ERROR;
-  }
-
-  /* Prepare the decryption initialization vector
-   * Flags: L' = L - 1 */
-  ((uint8_t *)iv)[0] = len_len - 1;
-  /* Nonce */
-  rom_util_memcpy(&((uint8_t *)iv)[1], nonce, 15 - len_len);
-  /* Initialize counter to 0 */
-  rom_util_memset(&((uint8_t *)iv)[16 - len_len], 0, len_len);
-
-  /* Write initialization vector */
-  REG(AES_AES_IV_0) = iv[0];
-  REG(AES_AES_IV_1) = iv[1];
-  REG(AES_AES_IV_2) = iv[2];
-  REG(AES_AES_IV_3) = iv[3];
-
-  /* Program AES-CCM decryption */
-  REG(AES_AES_CTRL) = AES_AES_CTRL_SAVE_CONTEXT |            /* Save context */
-    (((MAX(mic_len, 2) - 2) >> 1) << AES_AES_CTRL_CCM_M_S) | /* M */
-    ((len_len - 1) << AES_AES_CTRL_CCM_L_S) |                /* L */
-    AES_AES_CTRL_CCM |                                       /* CCM */
-    AES_AES_CTRL_CTR_WIDTH_128 |                             /* CTR width 128 */
-    AES_AES_CTRL_CTR;                                        /* CTR */
-
-  /* Write the length of the crypto block (lo) */
-  REG(AES_AES_C_LENGTH_0) = pdata_len;
-  /* Write the length of the crypto block (hi) */
-  REG(AES_AES_C_LENGTH_1) = 0;
-
-  /* Write the length of the AAD data block (may be non-block size-aligned) */
-  REG(AES_AES_AUTH_LENGTH) = adata_len;
-
-  if(adata_len != 0) {
-    /* Configure DMAC to fetch the AAD data
-     * Enable DMA channel 0 */
-    REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
-    /* Base address of the AAD input data in ext. memory */
-    REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)adata;
-    /* AAD data length in bytes */
-    REG(AES_DMAC_CH0_DMALENGTH) = adata_len;
-
-    /* Wait for completion of the AAD data transfer, DMA_IN_DONE */
-    while(!(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_IN_DONE));
-
-    /* Check for the absence of error */
-    if(REG(AES_CTRL_INT_STAT) & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
-      /* Clear the DMA error */
-      REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR;
-      /* Disable the master control / DMA clock */
-      REG(AES_CTRL_ALG_SEL) = 0x00000000;
-      return CRYPTO_DMA_BUS_ERROR;
-    }
-  }
-
-  /* Clear interrupt status */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
-                          AES_CTRL_INT_CLR_RESULT_AV;
-
-  if(process != NULL) {
-    crypto_register_process_notification(process);
-    nvic_interrupt_unpend(NVIC_INT_AES);
-    nvic_interrupt_enable(NVIC_INT_AES);
-  }
-
-  /* Enable result available bit in interrupt enable */
-  REG(AES_CTRL_INT_EN) = AES_CTRL_INT_EN_RESULT_AV;
-
-  if(pdata_len != 0) {
-    /* Configure DMAC
-     * Enable DMA channel 0 */
-    REG(AES_DMAC_CH0_CTRL) = AES_DMAC_CH_CTRL_EN;
-    /* Base address of the payload data in ext. memory */
-    REG(AES_DMAC_CH0_EXTADDR) = (uint32_t)cdata;
-    /* Payload data length in bytes */
-    REG(AES_DMAC_CH0_DMALENGTH) = pdata_len;
-
-    /* Enable DMA channel 1 */
-    REG(AES_DMAC_CH1_CTRL) = AES_DMAC_CH_CTRL_EN;
-    /* Base address of the output data buffer */
-    REG(AES_DMAC_CH1_EXTADDR) = (uint32_t)cdata;
-    /* Output data length in bytes */
-    REG(AES_DMAC_CH1_DMALENGTH) = pdata_len;
-  }
-
-  return CRYPTO_SUCCESS;
-}
-/*---------------------------------------------------------------------------*/
-uint8_t
-ccm_auth_decrypt_check_status(void)
-{
-  /* Check if result is available or some error has occured */
-  return ccm_auth_encrypt_check_status();
 }
 /*---------------------------------------------------------------------------*/
 uint8_t
 ccm_auth_decrypt_get_result(const void *cdata, uint16_t cdata_len,
                             void *mic, uint8_t mic_len)
-{
+__attribute__ ((alias("ccm_auth_crypt_get_result")));
-  uint32_t aes_ctrl_int_stat;
-  uint16_t pdata_len = cdata_len - mic_len;
-  uint32_t tag[4];
-
-  aes_ctrl_int_stat = REG(AES_CTRL_INT_STAT);
-  /* Clear the error bits */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_BUS_ERR |
-                          AES_CTRL_INT_CLR_KEY_ST_WR_ERR |
-                          AES_CTRL_INT_CLR_KEY_ST_RD_ERR;
-
-  nvic_interrupt_disable(NVIC_INT_AES);
-  crypto_register_process_notification(NULL);
-
-  /* Disable the master control / DMA clock */
-  REG(AES_CTRL_ALG_SEL) = 0x00000000;
-
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_DMA_BUS_ERR) {
-    return CRYPTO_DMA_BUS_ERROR;
-  }
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_WR_ERR) {
-    return AES_KEYSTORE_WRITE_ERROR;
-  }
-  if(aes_ctrl_int_stat & AES_CTRL_INT_STAT_KEY_ST_RD_ERR) {
-    return AES_KEYSTORE_READ_ERROR;
-  }
-
-  /* Read tag
-   * Wait for the context ready bit */
-  while(!(REG(AES_AES_CTRL) & AES_AES_CTRL_SAVED_CONTEXT_READY));
-
-  /* Read the tag registers */
-  tag[0] = REG(AES_AES_TAG_OUT_0);
-  tag[1] = REG(AES_AES_TAG_OUT_1);
-  tag[2] = REG(AES_AES_TAG_OUT_2);
-  tag[3] = REG(AES_AES_TAG_OUT_3);
-
-  /* Clear the interrupt status */
-  REG(AES_CTRL_INT_CLR) = AES_CTRL_INT_CLR_DMA_IN_DONE |
-                          AES_CTRL_INT_CLR_RESULT_AV;
-
-  /* Check MIC */
-  if(rom_util_memcmp(tag, &((const uint8_t *)cdata)[pdata_len], mic_len)) {
-    return CCM_AUTHENTICATION_FAILED;
-  }
-
-  /* Copy tag to MIC */
-  rom_util_memcpy(mic, tag, mic_len);
-
-  return CRYPTO_SUCCESS;
-}
 
 /** @} */

cpu/cc2538/dev/ccm.h

@@ -54,77 +54,95 @@
 #include <stdbool.h>
 #include <stdint.h>
 /*---------------------------------------------------------------------------*/
-/** \name AES-CCM driver return codes
+/** \name CCM constants
  * @{
  */
-#define CCM_AUTHENTICATION_FAILED     7
+#define CCM_FLAGS_LEN           1
+#define CCM_NONCE_LEN_LEN       (AES_IV_LEN - CCM_FLAGS_LEN)
+#define CCM_MIC_MAX_LEN         AES_TAG_LEN
 /** @} */
 /*---------------------------------------------------------------------------*/
 /** \name AES-CCM functions
  * @{
  */
 
-/** \brief Starts the CCM authentication and encryption operation
+/** \brief Starts a CCM authentication and encryption operation
- * \param len_len Number of octets in length field (2, 4 or 8)
+ * \param len_len Number of octets in length field (2, 4, or 8)
- * \param key_area Area in Key RAM where the key is stored (0 to 7)
+ * \param key_area Area in Key RAM where the key is stored (0 to
- * \param nonce Pointer to nonce (15 - \p len_len octets)
+ * \c AES_KEY_AREAS - 1)
- * \param adata Pointer to additional authenticated data, or \c NULL
+ * \param nonce Pointer to nonce (\c CCM_NONCE_LEN_LEN - \p len_len octets)
+ * \param adata Pointer to additional authenticated data in SRAM, or \c NULL
  * \param adata_len Length of additional authenticated data in octets, or \c 0
- * \param pdata Pointer to message to authenticate and encrypt, or \c NULL
+ * \param pdata Pointer to message to authenticate and encrypt in SRAM, or
- * \param pdata_len Length of message to authenticate and encrypt in octets, or \c 0
+ * \c NULL
- * \param mic_len Number of octets in authentication field (even value between 0 and 16)
+ * \param pdata_len Length of message to authenticate and encrypt in octets, or
- * \param process Process to be polled upon completion of the operation, or \c NULL
+ * \c 0
+ * \param cdata Pointer to encrypted message in SRAM (may be \p pdata), or
+ * \c NULL
+ * \param mic_len Number of octets in authentication field (even value between 0
+ * and \c CCM_MIC_MAX_LEN)
+ * \param process Process to be polled upon completion of the operation, or
+ * \c NULL
  * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CCM error code
  */
 uint8_t ccm_auth_encrypt_start(uint8_t len_len, uint8_t key_area,
                                const void *nonce, const void *adata,
-                               uint16_t adata_len, void *pdata,
+                               uint16_t adata_len, const void *pdata,
-                               uint16_t pdata_len, uint8_t mic_len,
+                               uint16_t pdata_len, void *cdata, uint8_t mic_len,
                                struct process *process);
 
 /** \brief Checks the status of the CCM authentication and encryption operation
  * \retval false Result not yet available, and no error occurred
  * \retval true Result available, or error occurred
  */
-uint8_t ccm_auth_encrypt_check_status(void);
+#define ccm_auth_encrypt_check_status aes_auth_crypt_check_status
 
 /** \brief Gets the result of the CCM authentication and encryption operation
  * \param mic Pointer to authentication field, or \c NULL
- * \param mic_len Number of octets in authentication field (even value between 0 and 16)
+ * \param mic_len Number of octets in authentication field (even value between 0
+ * and \c CCM_MIC_MAX_LEN)
  * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CCM error code
  * \note This function must be called only after \c ccm_auth_encrypt_start().
  */
 uint8_t ccm_auth_encrypt_get_result(void *mic, uint8_t mic_len);
 
-/** \brief Starts the CCM authentication checking and decryption operation
+/** \brief Starts a CCM authentication checking and decryption operation
- * \param len_len Number of octets in length field (2, 4 or 8)
+ * \param len_len Number of octets in length field (2, 4, or 8)
- * \param key_area Area in Key RAM where the key is stored (0 to 7)
+ * \param key_area Area in Key RAM where the key is stored (0 to
- * \param nonce Pointer to nonce (15 - \p len_len octets)
+ * \c AES_KEY_AREAS - 1)
- * \param adata Pointer to additional authenticated data, or \c NULL
+ * \param nonce Pointer to nonce (\c CCM_NONCE_LEN_LEN - \p len_len octets)
+ * \param adata Pointer to additional authenticated data in SRAM, or \c NULL
  * \param adata_len Length of additional authenticated data in octets, or \c 0
- * \param cdata Pointer to encrypted and authenticated message
+ * \param cdata Pointer to encrypted and authenticated message in SRAM
  * \param cdata_len Length of encrypted and authenticated message in octets
- * \param mic_len Number of octets in authentication field (even value between 0 and 16)
+ * \param pdata Pointer to decrypted message in SRAM (may be \p cdata), or
- * \param process Process to be polled upon completion of the operation, or \c NULL
+ * \c NULL
+ * \param mic_len Number of octets in authentication field (even value between 0
+ * and \c CCM_MIC_MAX_LEN)
+ * \param process Process to be polled upon completion of the operation, or
+ * \c NULL
  * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CCM error code
  */
 uint8_t ccm_auth_decrypt_start(uint8_t len_len, uint8_t key_area,
                                const void *nonce, const void *adata,
-                               uint16_t adata_len, void *cdata,
+                               uint16_t adata_len, const void *cdata,
-                               uint16_t cdata_len, uint8_t mic_len,
+                               uint16_t cdata_len, void *pdata, uint8_t mic_len,
                                struct process *process);
 
-/** \brief Checks the status of the CCM authentication checking and decryption operation
+/** \brief Checks the status of the CCM authentication checking and decryption
+ * operation
  * \retval false Result not yet available, and no error occurred
  * \retval true Result available, or error occurred
  */
-uint8_t ccm_auth_decrypt_check_status(void);
+#define ccm_auth_decrypt_check_status aes_auth_crypt_check_status
 
-/** \brief Gets the result of the CCM authentication checking and decryption operation
+/** \brief Gets the result of the CCM authentication checking and decryption
+ * operation
  * \param cdata Pointer to encrypted and authenticated message
  * \param cdata_len Length of encrypted and authenticated message in octets
  * \param mic Pointer to authentication field, or \c NULL
- * \param mic_len Number of octets in authentication field (even value between 0 and 16)
+ * \param mic_len Number of octets in authentication field (even value between 0
+ * and \c CCM_MIC_MAX_LEN)
  * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CCM error code
  * \note This function must be called only after \c ccm_auth_decrypt_start().
  */

cpu/cc2538/dev/crypto.h

@@ -44,15 +44,30 @@
 #define CRYPTO_H_
 
 #include "contiki.h"
+#include "dev/sys-ctrl.h"
+#include "reg.h"
 /*---------------------------------------------------------------------------*/
 /** \name Crypto drivers return codes
  * @{
  */
+#define CRYPTO_PENDING                (-1)
 #define CRYPTO_SUCCESS                0
 #define CRYPTO_INVALID_PARAM          1
 #define CRYPTO_NULL_ERROR             2
 #define CRYPTO_RESOURCE_IN_USE        3
 #define CRYPTO_DMA_BUS_ERROR          4
+/** @} */
+/*---------------------------------------------------------------------------*/
+/** \name Crypto macros
+ * @{
+ */
+
+/** \brief Indicates whether the AES/SHA cryptoprocessor is enabled
+ * \return Boolean value indicating whether the AES/SHA cryptoprocessor is
+ * enabled
+ */
+#define CRYPTO_IS_ENABLED() (!!(REG(SYS_CTRL_RCGCSEC) & SYS_CTRL_RCGCSEC_AES))
+
 /** @} */
 /*---------------------------------------------------------------------------*/
 /** \name Crypto functions

cpu/cc2538/dev/ecb.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * \addtogroup cc2538-ecb
+ * @{
+ *
+ * \file
+ * Implementation of the cc2538 AES-ECB driver
+ */
+#include "contiki.h"
+#include "dev/ecb.h"
+
+#include <stdbool.h>
+#include <stdint.h>
+/*---------------------------------------------------------------------------*/
+uint8_t
+ecb_crypt_start(uint8_t encrypt, uint8_t key_area, const void *mdata_in,
+                void *mdata_out, uint16_t mdata_len, struct process *process)
+{
+  uint32_t ctrl;
+
+  /* Program AES-ECB crypto operation */
+  ctrl = encrypt ? AES_AES_CTRL_DIRECTION_ENCRYPT : 0; /* En/decryption */
+
+  return aes_auth_crypt_start(ctrl, key_area, NULL, NULL, 0,
+                              mdata_in, mdata_out, mdata_len, process);
+}
+/*---------------------------------------------------------------------------*/
+int8_t
+ecb_crypt_check_status(void)
+{
+  return aes_auth_crypt_check_status() ? aes_auth_crypt_get_result(NULL, NULL) :
+                                         CRYPTO_PENDING;
+}
+
+/** @} */

cpu/cc2538/dev/ecb.h

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2015, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * \addtogroup cc2538-aes
+ * @{
+ *
+ * \defgroup cc2538-ecb cc2538 AES-ECB
+ *
+ * Driver for the cc2538 AES-ECB mode of the security core
+ * @{
+ *
+ * \file
+ * Header file for the cc2538 AES-ECB driver
+ */
+#ifndef ECB_H_
+#define ECB_H_
+
+#include "contiki.h"
+#include "dev/aes.h"
+
+#include <stdbool.h>
+#include <stdint.h>
+/*---------------------------------------------------------------------------*/
+/** \name AES-ECB functions
+ * @{
+ */
+
+/** \brief Starts an ECB crypto operation
+ * \param encrypt \c true to encrypt, or \c false to decrypt
+ * \param key_area Area in Key RAM where the key is stored (0 to
+ * \c AES_KEY_AREAS - 1)
+ * \param mdata_in Pointer to input message in SRAM
+ * \param mdata_out Pointer to output message in SRAM (may be \p mdata_in)
+ * \param mdata_len Length of message in octets
+ * \param process Process to be polled upon completion of the operation, or
+ * \c NULL
+ * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/ECB error code
+ */
+uint8_t ecb_crypt_start(uint8_t encrypt, uint8_t key_area, const void *mdata_in,
+                        void *mdata_out, uint16_t mdata_len,
+                        struct process *process);
+
+/** \brief Checks the status of the ECB crypto operation
+ * \return \c CRYPTO_PENDING if operation still pending, \c CRYPTO_SUCCESS if
+ * successful, or CRYPTO/AES/ECB error code
+ * \note This function must be called only after \c ecb_crypt_start().
+ */
+int8_t ecb_crypt_check_status(void);
+
+/** @} */
+
+#endif /* ECB_H_ */
+
+/**
+ * @}
+ * @}
+ */

examples/cc2538dk/crypto/Makefile

@@ -1,4 +1,4 @@
-CONTIKI_PROJECT = ccm-test sha256-test
+CONTIKI_PROJECT = ecb-test ccm-test sha256-test
 
 all: $(CONTIKI_PROJECT)
 

examples/cc2538dk/crypto/ccm-test.c

@@ -58,6 +58,11 @@
 #include <stdio.h>
 #include <stdint.h>
 /*---------------------------------------------------------------------------*/
+#define NONCE_MAX_LEN   13
+#define ADATA_MAX_LEN   32
+#define MDATA_MAX_LEN   40
+#define MIC_MAX_LEN     16
+/*---------------------------------------------------------------------------*/
 PROCESS(ccm_test_process, "ccm test process");
 AUTOSTART_PROCESSES(&ccm_test_process);
 /*---------------------------------------------------------------------------*/
@@ -73,13 +78,13 @@ PROCESS_THREAD(ccm_test_process, ev, data)
     "keystore write error",
     "authentication failed"
   };
-  static const uint8_t keys128[][16] = {
+  static const uint8_t keys128[][128 / 8] = {
     { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
     { 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
       0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf }
   };
-  static const uint8_t keys192[][24] = {
+  static const uint8_t keys192[][192 / 8] = {
     { 0x26, 0x51, 0x1f, 0xb5, 0x1f, 0xcf, 0xa7, 0x5c,
       0xb4, 0xb4, 0x4d, 0xa7, 0x5a, 0x6e, 0x5a, 0x0e,
       0xb8, 0xd9, 0xc8, 0xf3, 0xb9, 0x06, 0xf8, 0x86 },
@@ -93,7 +98,7 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       0x37, 0x34, 0x1f, 0xec, 0x49, 0x94, 0x7e, 0x8c,
       0x70, 0x48, 0x24, 0x94, 0xa8, 0xf0, 0x7f, 0xcc }
   };
-  static const uint8_t keys256[][32] = {
+  static const uint8_t keys256[][256 / 8] = {
     { 0x26, 0x51, 0x1f, 0xb5, 0x1f, 0xcf, 0xa7, 0x5c,
       0xb4, 0xb4, 0x4d, 0xa7, 0x5a, 0x6e, 0x5a, 0x0e,
       0xb8, 0xd9, 0xc8, 0xf3, 0xb9, 0x06, 0xf8, 0x86,
@@ -123,19 +128,18 @@ PROCESS_THREAD(ccm_test_process, ev, data)
     { keys256, AES_KEY_STORE_SIZE_KEY_SIZE_256,
       sizeof(keys256) / sizeof(keys256[0]) }
   };
-  static struct {
+  static const struct {
     bool encrypt;
     uint8_t len_len;
     uint8_t key_size_index;
     uint8_t key_area;
-    uint8_t nonce[13];
+    uint8_t nonce[NONCE_MAX_LEN];
-    uint8_t adata[32];
+    uint8_t adata[ADATA_MAX_LEN];
     uint16_t adata_len;
-    uint8_t mdata[40];
+    uint8_t mdata[MDATA_MAX_LEN];
     uint16_t mdata_len;
-    uint8_t mic[16];
     uint8_t mic_len;
-    uint8_t expected[40];
+    uint8_t expected[MDATA_MAX_LEN];
   } vectors[] = {
     {
       true, /* encrypt */
@@ -150,7 +154,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
         0x0c, 0x0d, 0x0e, 0x0f }, /* mdata */
       20, /* mdata_len */
-      {}, /* mic */
       0, /* mic_len */
       { 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
         0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
@@ -169,7 +172,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       26, /* adata_len */
       {}, /* mdata */
       0, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       8, /* mic_len */
       { 0x22, 0x3b, 0xc1, 0xec, 0x84, 0x1a, 0xb5, 0x53 } /* expected */
     }, {
@@ -186,7 +188,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
         0x0c, 0x0d, 0x0e, 0x0f }, /* mdata */
       20, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
         0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
@@ -204,7 +205,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
         0x2c, 0x61, 0x01, 0x4e }, /* mdata */
       20, /* mdata_len */
-      {}, /* mic */
       0, /* mic_len */
       { 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
         0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
@@ -223,7 +223,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       26, /* adata_len */
       { 0x22, 0x3b, 0xc1, 0xec, 0x84, 0x1a, 0xb5, 0x53 }, /* mdata */
       8, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       8, /* mic_len */
       {} /* expected */
     }, {
@@ -240,7 +239,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
         0x2c, 0x61, 0x01, 0x4e, 0x7b, 0x34, 0x4f, 0x09 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
         0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
@@ -258,8 +256,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x12, 0x55, 0x06, 0x39, 0xb9, 0x1f, 0xb2, 0x57,
         0x3e, 0x39, 0xa8, 0xeb, 0x5d, 0x80, 0x1d, 0xe8 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x63, 0x42, 0xb8, 0x70, 0x0e, 0xde, 0xc9, 0x7a,
         0x96, 0x0e, 0xb1, 0x6e, 0x7c, 0xb1, 0xeb, 0x44,
@@ -280,8 +276,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       32, /* adata_len */
       {}, /* mdata */
       0, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x3b, 0xf9, 0xd9, 0x3a, 0xf6, 0xff, 0xac, 0x9a,
         0xc8, 0x4c, 0xd3, 0x20, 0x2d, 0x4e, 0x0c, 0xc8 } /* expected */
@@ -300,8 +294,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0xe6, 0x9c, 0x2a, 0x1f, 0x58, 0x93, 0x9d, 0xfe,
         0x4d, 0x40, 0x37, 0x91, 0xb5, 0xdf, 0x13, 0x10 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x8a, 0x0f, 0x3d, 0x82, 0x29, 0xe4, 0x8e, 0x74,
         0x87, 0xfd, 0x95, 0xa2, 0x8a, 0xd3, 0x92, 0xc8,
@@ -324,7 +316,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0xe5, 0xd6, 0x25, 0x49, 0x59, 0xa1, 0x8a, 0xff,
         0xc4, 0xfa, 0xf5, 0x9c, 0x8e, 0xf6, 0x34, 0x89 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0x13, 0x7d, 0x9d, 0xa5, 0x9b, 0xaf, 0x5c, 0xbf,
         0xd4, 0x66, 0x20, 0xc5, 0xf2, 0x98, 0xfc, 0x76,
@@ -345,8 +336,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0xb0, 0x90, 0x15, 0x5d, 0x34, 0xa7, 0x6c, 0x83,
         0x24, 0xe5, 0x55, 0x0c, 0x3e, 0xf4, 0x26, 0xed }, /* mdata */
       40, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x39, 0xf0, 0x8a, 0x2a, 0xf1, 0xd8, 0xda, 0x62,
         0x12, 0x55, 0x06, 0x39, 0xb9, 0x1f, 0xb2, 0x57,
@@ -366,8 +355,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       { 0x3b, 0xf9, 0xd9, 0x3a, 0xf6, 0xff, 0xac, 0x9a,
         0xc8, 0x4c, 0xd3, 0x20, 0x2d, 0x4e, 0x0c, 0xc8 }, /* mdata */
       16, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       {} /* expected */
     }, {
@@ -387,8 +374,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x2d, 0xd6, 0xef, 0x1c, 0x45, 0xd4, 0xcc, 0xb7,
         0x23, 0xdc, 0x07, 0x44, 0x14, 0xdb, 0x50, 0x6d }, /* mdata */
       40, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0xc8, 0xd2, 0x75, 0xf9, 0x19, 0xe1, 0x7d, 0x7f,
         0xe6, 0x9c, 0x2a, 0x1f, 0x58, 0x93, 0x9d, 0xfe,
@@ -410,7 +395,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x6d, 0xe1, 0x0a, 0xc6, 0x8e, 0x77, 0x4e, 0xdf,
         0x1f, 0x2c, 0x5b, 0xad }, /* mdata */
       28, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0xee, 0x7e, 0x60, 0x75, 0xba, 0x52, 0x84, 0x6d,
         0xe5, 0xd6, 0x25, 0x49, 0x59, 0xa1, 0x8a, 0xff,
@@ -428,8 +412,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0xe7, 0x91, 0x11, 0x0f, 0xca, 0xea, 0x48, 0xe4,
         0x1d, 0xb7, 0xc7, 0xf0, 0x98, 0xa8, 0x10, 0x00 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x55, 0xf0, 0x68, 0xc0, 0xbb, 0xba, 0x8b, 0x59,
         0x80, 0x13, 0xdd, 0x18, 0x41, 0xfd, 0x74, 0x0f,
@@ -450,8 +432,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       32, /* adata_len */
       {}, /* mdata */
       0, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0xca, 0x48, 0x2c, 0x67, 0x4b, 0x59, 0x90, 0x46,
         0xcc, 0x7d, 0x7e, 0xe0, 0xd0, 0x0e, 0xec, 0x1e } /* expected */
@@ -470,8 +450,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x7b, 0x5e, 0x01, 0x5e, 0xea, 0x14, 0x1c, 0xa1,
         0xa8, 0x80, 0x20, 0xf2, 0xd5, 0xd6, 0xcc, 0x2c }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x27, 0xed, 0x90, 0x66, 0x81, 0x74, 0xeb, 0xf8,
         0x24, 0x1a, 0x3c, 0x74, 0xb3, 0x5e, 0x12, 0x46,
@@ -494,7 +472,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x7e, 0xdb, 0xb6, 0x7f, 0x8a, 0xe4, 0x56, 0xb4,
         0xea, 0x06, 0x6a, 0x4b, 0xee, 0xe0, 0x65, 0xf9 }, /* mdata */
       24, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0x9c, 0x8d, 0x5d, 0xd2, 0x27, 0xfd, 0x9f, 0x81,
         0x23, 0x76, 0x01, 0x83, 0x0a, 0xfe, 0xe4, 0xf0,
@@ -515,8 +492,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x93, 0x57, 0x53, 0xe6, 0x01, 0xb7, 0x9d, 0xb4,
         0xae, 0x73, 0x0b, 0x6a, 0xe3, 0x50, 0x07, 0x31 }, /* mdata */
       40, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x30, 0xd5, 0x6f, 0xf2, 0xa2, 0x5b, 0x83, 0xfe,
         0xe7, 0x91, 0x11, 0x0f, 0xca, 0xea, 0x48, 0xe4,
@@ -536,8 +511,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       { 0xca, 0x48, 0x2c, 0x67, 0x4b, 0x59, 0x90, 0x46,
         0xcc, 0x7d, 0x7e, 0xe0, 0xd0, 0x0e, 0xec, 0x1e }, /* mdata */
       16, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       {} /* expected */
     }, {
@@ -557,8 +530,6 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x3b, 0xdb, 0x67, 0x06, 0x2a, 0x13, 0xef, 0x4e,
         0x98, 0x6f, 0x5b, 0xb3, 0xd0, 0xbb, 0x43, 0x07 }, /* mdata */
       40, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
       16, /* mic_len */
       { 0x64, 0x4e, 0xb3, 0x4b, 0x9a, 0x12, 0x6e, 0x43,
         0x7b, 0x5e, 0x01, 0x5e, 0xea, 0x14, 0x1c, 0xa1,
@@ -580,13 +551,15 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         0x11, 0x56, 0x36, 0xc8, 0xe5, 0xd5, 0xfd, 0x74,
         0x3c, 0xb9, 0xaf, 0xed }, /* mdata */
       28, /* mdata_len */
-      { 0x00, 0x00, 0x00, 0x00 }, /* mic */
       4, /* mic_len */
       { 0x23, 0x90, 0x29, 0xf1, 0x50, 0xbc, 0xcb, 0xd6,
         0x7e, 0xdb, 0xb6, 0x7f, 0x8a, 0xe4, 0x56, 0xb4,
         0xea, 0x06, 0x6a, 0x4b, 0xee, 0xe0, 0x65, 0xf9 } /* expected */
     }
   };
+  static uint8_t adata[ADATA_MAX_LEN];
+  static uint8_t mdata[MDATA_MAX_LEN];
+  static uint8_t mic[MIC_MAX_LEN];
   static int i;
   static uint8_t key_size_index = -1, ret;
   static rtimer_clock_t time, time2, total_time;
@@ -622,13 +595,17 @@ PROCESS_THREAD(ccm_test_process, ev, data)
            vectors[i].len_len, vectors[i].key_area,
            vectors[i].adata_len, vectors[i].mdata_len, vectors[i].mic_len);
 
+    /* adata and mdata have to be in SRAM. */
+    rom_util_memcpy(adata, vectors[i].adata, vectors[i].adata_len);
+    rom_util_memcpy(mdata, vectors[i].mdata, vectors[i].mdata_len);
+
     time = RTIMER_NOW();
     if(vectors[i].encrypt) {
       ret = ccm_auth_encrypt_start(vectors[i].len_len, vectors[i].key_area,
-                                   vectors[i].nonce, vectors[i].adata,
+                                   vectors[i].nonce, adata,
-                                   vectors[i].adata_len, vectors[i].mdata,
+                                   vectors[i].adata_len, mdata,
-                                   vectors[i].mdata_len, vectors[i].mic_len,
+                                   vectors[i].mdata_len, mdata,
-                                   &ccm_test_process);
+                                   vectors[i].mic_len, &ccm_test_process);
       time2 = RTIMER_NOW();
       time = time2 - time;
       total_time = time;
@@ -647,7 +624,7 @@ PROCESS_THREAD(ccm_test_process, ev, data)
              (uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND));
 
       time = RTIMER_NOW();
-      ret = ccm_auth_encrypt_get_result(vectors[i].mic, vectors[i].mic_len);
+      ret = ccm_auth_encrypt_get_result(mic, vectors[i].mic_len);
       time = RTIMER_NOW() - time;
       total_time += time;
       printf("ccm_auth_encrypt_get_result(): %s, %lu us\n", str_res[ret],
@@ -657,15 +634,13 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         continue;
       }
 
-      if(rom_util_memcmp(vectors[i].mdata, vectors[i].expected,
+      if(rom_util_memcmp(mdata, vectors[i].expected, vectors[i].mdata_len)) {
-                         vectors[i].mdata_len)) {
         puts("Encrypted message does not match expected one");
       } else {
         puts("Encrypted message OK");
       }
 
-      if(rom_util_memcmp(vectors[i].mic,
+      if(rom_util_memcmp(mic, vectors[i].expected + vectors[i].mdata_len,
-                         vectors[i].expected + vectors[i].mdata_len,
                          vectors[i].mic_len)) {
         puts("MIC does not match expected one");
       } else {
@@ -673,10 +648,10 @@ PROCESS_THREAD(ccm_test_process, ev, data)
       }
     } else {
       ret = ccm_auth_decrypt_start(vectors[i].len_len, vectors[i].key_area,
-                                   vectors[i].nonce, vectors[i].adata,
+                                   vectors[i].nonce, adata,
-                                   vectors[i].adata_len, vectors[i].mdata,
+                                   vectors[i].adata_len, mdata,
-                                   vectors[i].mdata_len, vectors[i].mic_len,
+                                   vectors[i].mdata_len, mdata,
-                                   &ccm_test_process);
+                                   vectors[i].mic_len, &ccm_test_process);
       time2 = RTIMER_NOW();
       time = time2 - time;
       total_time = time;
@@ -695,8 +670,8 @@ PROCESS_THREAD(ccm_test_process, ev, data)
              (uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND));
 
       time = RTIMER_NOW();
-      ret = ccm_auth_decrypt_get_result(vectors[i].mdata, vectors[i].mdata_len,
+      ret = ccm_auth_decrypt_get_result(mdata, vectors[i].mdata_len,
-                                        vectors[i].mic, vectors[i].mic_len);
+                                        mic, vectors[i].mic_len);
       time = RTIMER_NOW() - time;
       total_time += time;
       printf("ccm_auth_decrypt_get_result(): %s, %lu us\n", str_res[ret],
@@ -706,7 +681,7 @@ PROCESS_THREAD(ccm_test_process, ev, data)
         continue;
       }
 
-      if(rom_util_memcmp(vectors[i].mdata, vectors[i].expected,
+      if(rom_util_memcmp(mdata, vectors[i].expected,
                          vectors[i].mdata_len - vectors[i].mic_len)) {
         puts("Decrypted message does not match expected one");
       } else {

examples/cc2538dk/crypto/ecb-test.c

@@ -0,0 +1,662 @@
+/*
+ * Copyright (c) 2015, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * \addtogroup cc2538-examples
+ * @{
+ *
+ * \defgroup cc2538-ecb-test cc2538dk AES-ECB Test Project
+ *
+ *   AES-ECB access example for CC2538 on SmartRF06EB.
+ *
+ *   This example shows how AES-ECB should be used. The example also verifies
+ *   the AES-ECB functionality.
+ *
+ * @{
+ *
+ * \file
+ *     Example demonstrating AES-ECB on the cc2538dk platform
+ */
+#include "contiki.h"
+#include "sys/rtimer.h"
+#include "dev/rom-util.h"
+#include "dev/ecb.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+/*---------------------------------------------------------------------------*/
+#define MDATA_MAX_LEN   160
+/*---------------------------------------------------------------------------*/
+PROCESS(ecb_test_process, "ecb test process");
+AUTOSTART_PROCESSES(&ecb_test_process);
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(ecb_test_process, ev, data)
+{
+  static const char *const str_res[] = {
+    "success",
+    "invalid param",
+    "NULL error",
+    "resource in use",
+    "DMA bus error",
+    "keystore read error",
+    "keystore write error",
+    "authentication failed"
+  };
+  static const uint8_t keys128[][128 / 8] = {
+    { 0xed, 0xfd, 0xb2, 0x57, 0xcb, 0x37, 0xcd, 0xf1,
+      0x82, 0xc5, 0x45, 0x5b, 0x0c, 0x0e, 0xfe, 0xbb },
+    { 0xef, 0x60, 0xfb, 0x14, 0x00, 0xc8, 0x39, 0x36,
+      0x41, 0x4a, 0x25, 0x65, 0x1e, 0xb5, 0x1a, 0x1b },
+    { 0x00, 0xcc, 0x73, 0xc9, 0x90, 0xd3, 0x76, 0xb8,
+      0x22, 0x46, 0xe4, 0x5e, 0xa3, 0xae, 0x2e, 0x37 },
+    { 0xeb, 0xea, 0x9c, 0x6a, 0x82, 0x21, 0x3a, 0x00,
+      0xac, 0x1d, 0x22, 0xfa, 0xea, 0x22, 0x11, 0x6f },
+    { 0x54, 0xb7, 0x60, 0xdd, 0x29, 0x68, 0xf0, 0x79,
+      0xac, 0x1d, 0x5d, 0xd2, 0x06, 0x26, 0x44, 0x5d },
+    { 0x9b, 0xa8, 0x52, 0x52, 0x0c, 0x9f, 0xd1, 0xeb,
+      0x36, 0x7b, 0x6a, 0xd2, 0xae, 0xd0, 0x7a, 0xbd },
+    { 0x8e, 0xc6, 0xa5, 0xa0, 0x54, 0xfe, 0xa2, 0xfc,
+      0x8d, 0xaf, 0xb5, 0x93, 0x9a, 0x4b, 0xd7, 0x88 },
+    { 0x44, 0xf0, 0xee, 0x62, 0x6d, 0x04, 0x46, 0xe0,
+      0xa3, 0x92, 0x4c, 0xfb, 0x07, 0x89, 0x44, 0xbb }
+  };
+  static const uint8_t keys192[][192 / 8] = {
+    { 0x61, 0x39, 0x6c, 0x53, 0x0c, 0xc1, 0x74, 0x9a,
+      0x5b, 0xab, 0x6f, 0xbc, 0xf9, 0x06, 0xfe, 0x67,
+      0x2d, 0x0c, 0x4a, 0xb2, 0x01, 0xaf, 0x45, 0x54 },
+    { 0x4f, 0x41, 0xfa, 0x4d, 0x4a, 0x25, 0x10, 0x0b,
+      0x58, 0x65, 0x51, 0x82, 0x83, 0x73, 0xbc, 0xca,
+      0x55, 0x40, 0xc6, 0x8e, 0x9b, 0xf8, 0x45, 0x62 },
+    { 0xf2, 0xd2, 0xb8, 0x22, 0x80, 0xc2, 0x59, 0x2e,
+      0xcf, 0xbc, 0xf5, 0x00, 0xae, 0x64, 0x70, 0x78,
+      0xc9, 0xc5, 0x76, 0x24, 0xcd, 0xe9, 0xbf, 0x6c },
+    { 0x9c, 0xc2, 0x4e, 0xa1, 0xf1, 0x95, 0x9d, 0x9a,
+      0x97, 0x2e, 0x71, 0x82, 0xef, 0x3b, 0x4e, 0x22,
+      0xa9, 0x7a, 0x87, 0xd0, 0xda, 0x7f, 0xf6, 0x4b }
+  };
+  static const uint8_t keys256[][256 / 8] = {
+    { 0xcc, 0x22, 0xda, 0x78, 0x7f, 0x37, 0x57, 0x11,
+      0xc7, 0x63, 0x02, 0xbe, 0xf0, 0x97, 0x9d, 0x8e,
+      0xdd, 0xf8, 0x42, 0x82, 0x9c, 0x2b, 0x99, 0xef,
+      0x3d, 0xd0, 0x4e, 0x23, 0xe5, 0x4c, 0xc2, 0x4b },
+    { 0x44, 0xa2, 0xb5, 0xa7, 0x45, 0x3e, 0x49, 0xf3,
+      0x82, 0x61, 0x90, 0x4f, 0x21, 0xac, 0x79, 0x76,
+      0x41, 0xd1, 0xbc, 0xd8, 0xdd, 0xed, 0xd2, 0x93,
+      0xf3, 0x19, 0x44, 0x9f, 0xe6, 0x3b, 0x29, 0x48 },
+    { 0xa8, 0x1f, 0xd6, 0xca, 0x56, 0x68, 0x3d, 0x0f,
+      0x54, 0x45, 0x65, 0x9d, 0xde, 0x4d, 0x99, 0x5d,
+      0xc6, 0x5f, 0x4b, 0xce, 0x20, 0x89, 0x63, 0x05,
+      0x3e, 0x28, 0xd7, 0xf2, 0xdf, 0x51, 0x7c, 0xe4 },
+    { 0xc4, 0xa7, 0x1e, 0x05, 0x5a, 0x72, 0x54, 0xdd,
+      0xa3, 0x60, 0x69, 0x3f, 0xe1, 0xbe, 0x49, 0xf1,
+      0x0f, 0xaa, 0x67, 0x31, 0xc3, 0x6d, 0xba, 0xa6,
+      0x59, 0x0b, 0x05, 0x97, 0x4e, 0x18, 0x5c, 0x5b }
+  };
+  static const struct {
+    const void *keys;
+    uint8_t key_size;
+    uint8_t count;
+  } keys[] = {
+    { keys128, AES_KEY_STORE_SIZE_KEY_SIZE_128,
+      sizeof(keys128) / sizeof(keys128[0]) },
+    { keys192, AES_KEY_STORE_SIZE_KEY_SIZE_192,
+      sizeof(keys192) / sizeof(keys192[0]) },
+    { keys256, AES_KEY_STORE_SIZE_KEY_SIZE_256,
+      sizeof(keys256) / sizeof(keys256[0]) }
+  };
+  static const struct {
+    bool encrypt;
+    uint8_t key_size_index;
+    uint8_t key_area;
+    uint8_t mdata[MDATA_MAX_LEN];
+    uint16_t mdata_len;
+    uint8_t expected[MDATA_MAX_LEN];
+  } vectors[] = {
+    {
+      true, /* encrypt */
+      0, /* key_size_index */
+      0, /* key_area */
+      { 0x16, 0x95, 0xfe, 0x47, 0x54, 0x21, 0xca, 0xce,
+        0x35, 0x57, 0xda, 0xca, 0x01, 0xf4, 0x45, 0xff }, /* mdata */
+      16, /* mdata_len */
+      { 0x78, 0x88, 0xbe, 0xae, 0x6e, 0x7a, 0x42, 0x63,
+        0x32, 0xa7, 0xea, 0xa2, 0xf8, 0x08, 0xe6, 0x37 } /* expected */
+    }, {
+      true, /* encrypt */
+      0, /* key_size_index */
+      1, /* key_area */
+      { 0x59, 0x35, 0x59, 0x31, 0x8c, 0xc6, 0x6b, 0xf6,
+        0x95, 0xe4, 0x9f, 0xeb, 0x42, 0x79, 0x4b, 0xdf,
+        0xb6, 0x6b, 0xce, 0x89, 0x5e, 0xc2, 0x22, 0xca,
+        0x26, 0x09, 0xb1, 0x33, 0xec, 0xf6, 0x6a, 0xc7,
+        0x34, 0x4d, 0x13, 0x02, 0x1e, 0x01, 0xe1, 0x1a,
+        0x96, 0x9c, 0x46, 0x84, 0xcb, 0xe2, 0x0a, 0xba,
+        0xe2, 0xb1, 0x9d, 0x3c, 0xeb, 0x2c, 0xac, 0xd4,
+        0x14, 0x19, 0xf2, 0x1f, 0x1c, 0x86, 0x51, 0x49 }, /* mdata */
+      64, /* mdata_len */
+      { 0x3e, 0xa6, 0xf4, 0x30, 0x52, 0x17, 0xbd, 0x47,
+        0xee, 0xbe, 0x77, 0x3d, 0xa4, 0xb5, 0x78, 0x54,
+        0x9c, 0xac, 0x74, 0x4c, 0x00, 0xcb, 0xd8, 0xf9,
+        0xd5, 0x96, 0xd3, 0x80, 0x10, 0x30, 0x4b, 0xd8,
+        0x50, 0xcc, 0x2f, 0x4b, 0x19, 0xa9, 0x1c, 0x2e,
+        0x02, 0x2e, 0xab, 0xf1, 0x00, 0x26, 0x61, 0x85,
+        0xca, 0x27, 0x05, 0x12, 0x78, 0x15, 0xdf, 0xd4,
+        0x6e, 0xfb, 0xe4, 0xec, 0xd4, 0x6a, 0x30, 0x58 } /* expected */
+    }, {
+      true, /* encrypt */
+      0, /* key_size_index */
+      2, /* key_area */
+      { 0x37, 0xa1, 0x20, 0x5e, 0xa9, 0x29, 0x35, 0x5d,
+        0x2e, 0x4e, 0xe5, 0x2d, 0x5e, 0x1d, 0x9c, 0xda,
+        0x27, 0x9a, 0xe0, 0x1e, 0x64, 0x02, 0x87, 0xcc,
+        0xb1, 0x53, 0x27, 0x6e, 0x7e, 0x0e, 0xcf, 0x2d,
+        0x63, 0x3c, 0xf4, 0xf2, 0xb3, 0xaf, 0xae, 0xcb,
+        0x54, 0x8a, 0x25, 0x90, 0xce, 0x04, 0x45, 0xc6,
+        0xa1, 0x68, 0xba, 0xc3, 0xdc, 0x60, 0x18, 0x13,
+        0xeb, 0x74, 0x59, 0x1b, 0xb1, 0xce, 0x8d, 0xfc,
+        0xd7, 0x40, 0xcd, 0xbb, 0x63, 0x88, 0x71, 0x9e,
+        0x8c, 0xd2, 0x83, 0xd9, 0xcc, 0x7e, 0x73, 0x69,
+        0x38, 0x24, 0x0b, 0x41, 0x0d, 0xd5, 0xa6, 0xa4,
+        0x8b, 0xa4, 0x9d, 0xd2, 0x06, 0x65, 0x03, 0xe6,
+        0x3a, 0xb5, 0x92, 0xff, 0xdf, 0x3b, 0xe4, 0x9e,
+        0x7d, 0x2d, 0xe7, 0x4f, 0x82, 0x15, 0x8b, 0x8c }, /* mdata */
+      112, /* mdata_len */
+      { 0xc8, 0x8e, 0x03, 0x38, 0x3b, 0xa9, 0xda, 0x6f,
+        0x98, 0x2c, 0x05, 0x7f, 0xe9, 0x2c, 0x0b, 0xb3,
+        0xed, 0x5b, 0x9c, 0xd1, 0x82, 0x95, 0xa1, 0x00,
+        0xe1, 0x3a, 0x4e, 0x12, 0xd4, 0x40, 0xb9, 0x19,
+        0xbb, 0xb8, 0xb2, 0x21, 0xab, 0xea, 0xd3, 0x62,
+        0x90, 0x2c, 0xe4, 0x4d, 0x30, 0xd0, 0xb8, 0x0e,
+        0x56, 0xbe, 0xe1, 0xf6, 0x6a, 0x7d, 0x8d, 0xe0,
+        0xb1, 0xe1, 0xb4, 0xdb, 0xf7, 0x6c, 0x90, 0xc1,
+        0x80, 0x7a, 0x3b, 0xc5, 0xf2, 0x77, 0xe9, 0x81,
+        0x4c, 0x82, 0xab, 0x12, 0x0f, 0x7e, 0x10, 0x21,
+        0x7d, 0xfd, 0xf6, 0x09, 0x2c, 0xe4, 0x95, 0x8f,
+        0x89, 0x06, 0xc5, 0xe3, 0x22, 0x79, 0xc6, 0x53,
+        0x7d, 0xd1, 0xfb, 0xae, 0x20, 0xcb, 0x7a, 0x1d,
+        0x9f, 0x89, 0xd0, 0x49, 0x0b, 0x6a, 0xef, 0xc1 } /* expected */
+    }, {
+      true, /* encrypt */
+      0, /* key_size_index */
+      3, /* key_area */
+      { 0x45, 0x1f, 0x45, 0x66, 0x3b, 0x44, 0xfd, 0x00,
+        0x5f, 0x3c, 0x28, 0x8a, 0xe5, 0x7b, 0x38, 0x38,
+        0x83, 0xf0, 0x2d, 0x9a, 0xd3, 0xdc, 0x17, 0x15,
+        0xf9, 0xe3, 0xd6, 0x94, 0x85, 0x64, 0x25, 0x7b,
+        0x9b, 0x06, 0xd7, 0xdd, 0x51, 0x93, 0x5f, 0xee,
+        0x58, 0x0a, 0x96, 0xbb, 0xdf, 0xef, 0xb9, 0x18,
+        0xb4, 0xe6, 0xb1, 0xda, 0xac, 0x80, 0x98, 0x47,
+        0x46, 0x55, 0x78, 0xcb, 0x8b, 0x53, 0x56, 0xed,
+        0x38, 0x55, 0x6f, 0x80, 0x1f, 0xf7, 0xc1, 0x1e,
+        0xcb, 0xa9, 0xcd, 0xd2, 0x63, 0x03, 0x9c, 0x15,
+        0xd0, 0x59, 0x00, 0xfc, 0x22, 0x8e, 0x1c, 0xaf,
+        0x30, 0x2d, 0x26, 0x1d, 0x7f, 0xb5, 0x6c, 0xee,
+        0x66, 0x35, 0x95, 0xb9, 0x6f, 0x19, 0x2a, 0x78,
+        0xff, 0x44, 0x55, 0x39, 0x3a, 0x5f, 0xe8, 0x16,
+        0x21, 0x70, 0xa0, 0x66, 0xfd, 0xae, 0xac, 0x35,
+        0x01, 0x94, 0x69, 0xf2, 0x2b, 0x34, 0x70, 0x68,
+        0x6b, 0xce, 0xd2, 0xf0, 0x07, 0xa1, 0xa2, 0xe4,
+        0x3e, 0x01, 0xb4, 0x56, 0x2c, 0xaa, 0xa5, 0x02,
+        0xed, 0x54, 0x1b, 0x82, 0x05, 0x87, 0x4e, 0xc1,
+        0xff, 0xb1, 0xc8, 0xb2, 0x55, 0x76, 0x69, 0x42 }, /* mdata */
+      160, /* mdata_len */
+      { 0x01, 0x04, 0x30, 0x53, 0xf8, 0x32, 0xef, 0x9b,
+        0x91, 0x1e, 0xd3, 0x87, 0xba, 0x57, 0x74, 0x51,
+        0xe3, 0x0d, 0x51, 0xd4, 0xb6, 0xb1, 0x1f, 0x31,
+        0x9d, 0x4c, 0xd5, 0x39, 0xd0, 0x67, 0xb7, 0xf4,
+        0xf9, 0xb4, 0xf4, 0x1f, 0x7f, 0x3d, 0x4e, 0x92,
+        0x0c, 0x57, 0xcb, 0xe2, 0xb5, 0xe1, 0x88, 0x5a,
+        0xa6, 0x62, 0x03, 0xae, 0x49, 0x3e, 0x93, 0xa1,
+        0xdf, 0x63, 0x79, 0x3a, 0x95, 0x63, 0xc1, 0x76,
+        0xbc, 0x67, 0x75, 0xdd, 0x09, 0xcc, 0x91, 0x61,
+        0xe2, 0x78, 0xa0, 0x1b, 0xeb, 0x8f, 0xd8, 0xa1,
+        0x92, 0x00, 0x32, 0x6b, 0xd9, 0x5a, 0xbc, 0x5f,
+        0x71, 0x67, 0x68, 0xe3, 0x4f, 0x90, 0xb5, 0x05,
+        0x23, 0xd3, 0x0f, 0xda, 0xbb, 0x10, 0x3a, 0x3b,
+        0xc0, 0x20, 0xaf, 0xbb, 0xb0, 0xcb, 0x3b, 0xd2,
+        0xad, 0x51, 0x2a, 0x6f, 0xea, 0x79, 0xf8, 0xd6,
+        0x4c, 0xef, 0x34, 0x74, 0x58, 0xde, 0xc4, 0x8b,
+        0xe8, 0x94, 0x51, 0xcb, 0x0b, 0x80, 0x7d, 0x73,
+        0x59, 0x3f, 0x27, 0x3d, 0x9f, 0xc5, 0x21, 0xb7,
+        0x89, 0xa7, 0x75, 0x24, 0x40, 0x4f, 0x43, 0xe0,
+        0x0f, 0x20, 0xb3, 0xb7, 0x7b, 0x93, 0x8b, 0x1a } /* expected */
+    }, {
+      false, /* encrypt */
+      0, /* key_size_index */
+      4, /* key_area */
+      { 0x06, 0x5b, 0xd5, 0xa9, 0x54, 0x0d, 0x22, 0xd5,
+        0xd7, 0xb0, 0xf7, 0x5d, 0x66, 0xcb, 0x8b, 0x30 }, /* mdata */
+      16, /* mdata_len */
+      { 0x46, 0xf2, 0xc9, 0x89, 0x32, 0x34, 0x9c, 0x33,
+        0x8e, 0x9d, 0x67, 0xf7, 0x44, 0xa1, 0xc9, 0x88 } /* expected */
+    }, {
+      false, /* encrypt */
+      0, /* key_size_index */
+      5, /* key_area */
+      { 0x6c, 0x53, 0x48, 0x9f, 0x6a, 0x4b, 0xd0, 0xf7,
+        0xcd, 0x15, 0xd2, 0x0f, 0x6e, 0xbc, 0x7e, 0x64,
+        0x9f, 0xd9, 0x5b, 0x76, 0xb1, 0x07, 0xe6, 0xda,
+        0xba, 0x96, 0x7c, 0x8a, 0x94, 0x84, 0x79, 0x7f,
+        0x29, 0xa8, 0xa2, 0x82, 0xee, 0x31, 0xc0, 0x3f,
+        0xae, 0x4f, 0x8e, 0x9b, 0x89, 0x30, 0xd5, 0x47,
+        0x3c, 0x2e, 0xd6, 0x95, 0xa3, 0x47, 0xe8, 0x8b,
+        0x7c, 0xcd, 0x62, 0x37, 0x6d, 0x5e, 0xbb, 0x41 }, /* mdata */
+      64, /* mdata_len */
+      { 0x60, 0x61, 0xdf, 0x5b, 0xcd, 0x42, 0x1f, 0xab,
+        0xdb, 0x52, 0x35, 0xfc, 0x03, 0x25, 0x02, 0x65,
+        0x04, 0x48, 0xfd, 0x82, 0x33, 0xa0, 0x23, 0x7c,
+        0x5f, 0x6f, 0x24, 0x9a, 0x63, 0xd7, 0xdb, 0x3e,
+        0x42, 0x83, 0xac, 0x9a, 0x86, 0x84, 0xa3, 0x63,
+        0xef, 0x64, 0xe7, 0x60, 0xc5, 0x88, 0x65, 0x64,
+        0x65, 0x9d, 0xa6, 0x19, 0x46, 0x68, 0x51, 0x56,
+        0x8b, 0x32, 0x09, 0x1d, 0xf5, 0x51, 0x6f, 0x57 } /* expected */
+    }, {
+      false, /* encrypt */
+      0, /* key_size_index */
+      6, /* key_area */
+      { 0x4d, 0x6f, 0x97, 0x29, 0x46, 0xa2, 0xe4, 0xca,
+        0x05, 0xbf, 0xbe, 0xec, 0xd0, 0x05, 0x35, 0xec,
+        0xe6, 0xc8, 0x1e, 0xd9, 0x63, 0xc4, 0x16, 0x70,
+        0x63, 0xb1, 0xc3, 0x4b, 0x6a, 0x18, 0x5d, 0x55,
+        0x04, 0x64, 0x6d, 0x81, 0xa8, 0x3c, 0xd5, 0xbc,
+        0xe2, 0x10, 0x11, 0x20, 0xb2, 0xf2, 0xbc, 0x6a,
+        0x2f, 0xa8, 0x56, 0xae, 0x6f, 0xff, 0x44, 0x49,
+        0xab, 0x62, 0x18, 0x18, 0x9f, 0xaa, 0x13, 0xe7,
+        0x30, 0x38, 0xe8, 0x2c, 0x51, 0x41, 0xc3, 0xf6,
+        0x27, 0x6a, 0x8a, 0x20, 0x6b, 0x95, 0x63, 0xca,
+        0x11, 0xfa, 0x76, 0x09, 0x27, 0x79, 0xf4, 0xde,
+        0xff, 0x2e, 0x58, 0x65, 0x90, 0x47, 0xed, 0x4f,
+        0x1a, 0x12, 0x90, 0x92, 0x09, 0x5a, 0xb7, 0x5f,
+        0x1c, 0xf4, 0xb2, 0x55, 0xc6, 0x95, 0x31, 0xf4 }, /* mdata */
+      112, /* mdata_len */
+      { 0x6e, 0x19, 0xce, 0xc7, 0x75, 0x59, 0x5c, 0x2f,
+        0x76, 0x8d, 0xe3, 0xbd, 0xa3, 0x68, 0x2f, 0xb4,
+        0x02, 0x6e, 0xd1, 0x88, 0x9f, 0xc3, 0xde, 0x11,
+        0xbc, 0x45, 0xa2, 0xa3, 0xe2, 0xb2, 0x26, 0x94,
+        0xdd, 0xaa, 0xb3, 0x27, 0x4c, 0x81, 0xb2, 0x92,
+        0x04, 0xfa, 0x03, 0x4e, 0xed, 0xac, 0x56, 0x4a,
+        0x7d, 0xfe, 0x27, 0xaa, 0xbb, 0x6f, 0xf4, 0x20,
+        0xf9, 0xaa, 0x5a, 0xba, 0xdf, 0x15, 0xc7, 0x46,
+        0x76, 0xef, 0xea, 0xbd, 0x96, 0xa7, 0xff, 0x24,
+        0x91, 0x81, 0x3b, 0xa5, 0x3c, 0xb5, 0xab, 0x76,
+        0xea, 0xcd, 0x37, 0x25, 0x5a, 0x28, 0xda, 0xec,
+        0xbb, 0xe5, 0x80, 0xf5, 0xeb, 0x77, 0xf9, 0xbc,
+        0x03, 0x39, 0xe0, 0xda, 0x59, 0xb2, 0xb3, 0x07,
+        0xf5, 0x29, 0x74, 0xb6, 0x18, 0x2c, 0xb1, 0x06 } /* expected */
+    }, {
+      false, /* encrypt */
+      0, /* key_size_index */
+      7, /* key_area */
+      { 0x93, 0x1b, 0x2f, 0x5f, 0x3a, 0x58, 0x20, 0xd5,
+        0x3a, 0x6b, 0xea, 0xaa, 0x64, 0x31, 0x08, 0x3a,
+        0x34, 0x88, 0xf4, 0xeb, 0x03, 0xb0, 0xf5, 0xb5,
+        0x7e, 0xf8, 0x38, 0xe1, 0x57, 0x96, 0x23, 0x10,
+        0x3b, 0xd6, 0xe6, 0x80, 0x03, 0x77, 0x53, 0x8b,
+        0x2e, 0x51, 0xef, 0x70, 0x8f, 0x3c, 0x49, 0x56,
+        0x43, 0x2e, 0x8a, 0x8e, 0xe6, 0xa3, 0x4e, 0x19,
+        0x06, 0x42, 0xb2, 0x6a, 0xd8, 0xbd, 0xae, 0x6c,
+        0x2a, 0xf9, 0xa6, 0xc7, 0x99, 0x6f, 0x3b, 0x60,
+        0x04, 0xd2, 0x67, 0x1e, 0x41, 0xf1, 0xc9, 0xf4,
+        0x0e, 0xe0, 0x3d, 0x1c, 0x4a, 0x52, 0xb0, 0xa0,
+        0x65, 0x4a, 0x33, 0x1f, 0x15, 0xf3, 0x4d, 0xce,
+        0x4a, 0xcb, 0x96, 0xbd, 0x65, 0x07, 0x81, 0x5c,
+        0xa4, 0x34, 0x7a, 0x3d, 0xe1, 0x1a, 0x31, 0x1b,
+        0x7d, 0xe5, 0x35, 0x1c, 0x97, 0x87, 0xc4, 0x53,
+        0x81, 0x58, 0xe2, 0x89, 0x74, 0xff, 0xa8, 0x3d,
+        0x82, 0x96, 0xdf, 0xe9, 0xcd, 0x09, 0xcd, 0x87,
+        0xf7, 0xbf, 0x4f, 0x54, 0xd9, 0x7d, 0x28, 0xd4,
+        0x78, 0x87, 0x99, 0x16, 0x34, 0x08, 0x32, 0x39,
+        0x43, 0xb3, 0xe7, 0x2f, 0x5e, 0xab, 0x66, 0xc1 }, /* mdata */
+      160, /* mdata_len */
+      { 0x9c, 0x29, 0xee, 0xcb, 0x2d, 0xe0, 0x42, 0x54,
+        0xfa, 0xfb, 0x89, 0x6a, 0x99, 0x41, 0x02, 0xd1,
+        0xda, 0x30, 0xdd, 0xb4, 0x9d, 0x82, 0x72, 0x8e,
+        0xb2, 0x3d, 0xbd, 0x02, 0x99, 0x01, 0xe9, 0xb7,
+        0x5b, 0x3d, 0x0a, 0xee, 0x03, 0xf7, 0xa0, 0x5f,
+        0x6c, 0x85, 0x2d, 0x8f, 0xad, 0xa0, 0xb5, 0xc2,
+        0x8e, 0x8c, 0x9a, 0xed, 0x33, 0x4f, 0xad, 0x11,
+        0x82, 0x9d, 0xf3, 0xdf, 0xad, 0xc5, 0xc2, 0xe4,
+        0x71, 0xeb, 0x41, 0xaf, 0x9e, 0x48, 0xa8, 0xa4,
+        0x65, 0xe0, 0x3d, 0x5e, 0xbd, 0xb0, 0x21, 0x69,
+        0x15, 0x08, 0x1f, 0x3b, 0x5a, 0x0e, 0xbb, 0x23,
+        0x08, 0xdf, 0xc2, 0xd2, 0x8e, 0x5a, 0x8b, 0xa3,
+        0xf3, 0x2a, 0xda, 0xe4, 0xc3, 0x57, 0x59, 0x21,
+        0xbc, 0x65, 0x7b, 0x63, 0xd4, 0x6b, 0xa5, 0xa6,
+        0x18, 0x88, 0x0e, 0xe9, 0xad, 0x8a, 0xf3, 0xfb,
+        0xa5, 0x64, 0x3a, 0x50, 0x26, 0xfa, 0xcd, 0x7d,
+        0x66, 0x7c, 0xe5, 0x99, 0x32, 0x7f, 0x93, 0x6c,
+        0xdd, 0xa7, 0xe1, 0xbb, 0x74, 0x2a, 0x33, 0xa0,
+        0x19, 0x99, 0x0b, 0x76, 0xbe, 0x64, 0x8a, 0x6e,
+        0xc7, 0x25, 0xda, 0xed, 0x54, 0x0e, 0xd9, 0xe7 } /* expected */
+    }, {
+      true, /* encrypt */
+      1, /* key_size_index */
+      0, /* key_area */
+      { 0x60, 0xbc, 0xdb, 0x94, 0x16, 0xba, 0xc0, 0x8d,
+        0x7f, 0xd0, 0xd7, 0x80, 0x35, 0x37, 0x40, 0xa5 }, /* mdata */
+      16, /* mdata_len */
+      { 0x24, 0xf4, 0x0c, 0x4e, 0xec, 0xd9, 0xc4, 0x98,
+        0x25, 0x00, 0x0f, 0xcb, 0x49, 0x72, 0x64, 0x7a } /* expected */
+    }, {
+      true, /* encrypt */
+      1, /* key_size_index */
+      2, /* key_area */
+      { 0x7c, 0x72, 0x7b, 0xd3, 0xe7, 0x04, 0x8e, 0x7a,
+        0x89, 0x95, 0xb7, 0xb1, 0x16, 0x9a, 0xe4, 0xb5,
+        0xa5, 0x5e, 0x85, 0x4b, 0xb4, 0xf7, 0xa9, 0x57,
+        0x6d, 0x78, 0x63, 0xab, 0x28, 0x68, 0x73, 0x1d,
+        0x30, 0x73, 0x22, 0xdc, 0xca, 0x60, 0x6e, 0x04,
+        0x73, 0x43, 0x67, 0x6f, 0x6a, 0xf4, 0xd9, 0xcf,
+        0x6e, 0xbf, 0x2b, 0xf9, 0xc9, 0x5d, 0x87, 0x84,
+        0x8d, 0x23, 0x3c, 0x93, 0x1e, 0x7a, 0x60, 0xef,
+        0xf0, 0x8f, 0xb9, 0x59, 0x92, 0x4c, 0xde, 0x1e,
+        0xec, 0x86, 0x99, 0xeb, 0xc5, 0x78, 0x90, 0xe3,
+        0x88, 0x70, 0x24, 0xef, 0x47, 0xc8, 0x9a, 0x55,
+        0x00, 0x18, 0x78, 0x8d, 0x1f, 0xaa, 0x32, 0x50,
+        0x45, 0x2e, 0x06, 0xf1, 0x48, 0xaf, 0x25, 0xf0,
+        0x7b, 0xc6, 0x13, 0xcd, 0x2f, 0x0e, 0x50, 0x1a,
+        0x79, 0xd7, 0x38, 0xd4, 0x36, 0x1f, 0x28, 0xf3,
+        0x4d, 0xbe, 0xe2, 0x40, 0x34, 0xe0, 0x33, 0x67,
+        0xb6, 0xb8, 0xd3, 0x4d, 0xf3, 0x73, 0x8c, 0xa3,
+        0xa8, 0x6b, 0x9e, 0xbc, 0xb0, 0x9e, 0x63, 0x9b,
+        0xcb, 0x5e, 0x2f, 0x51, 0x9f, 0x4a, 0x7a, 0x86,
+        0xfc, 0x7c, 0x41, 0x55, 0x64, 0x04, 0xa9, 0x5d }, /* mdata */
+      160, /* mdata_len */
+      { 0x92, 0x28, 0x12, 0xad, 0x5f, 0xea, 0xcd, 0xf1,
+        0x1f, 0xe7, 0xfd, 0xae, 0x96, 0x30, 0x01, 0x49,
+        0x41, 0x9e, 0x31, 0xcf, 0xf5, 0x40, 0x61, 0xb3,
+        0xc5, 0xed, 0x27, 0xfd, 0xb8, 0xb5, 0x0c, 0x9c,
+        0x09, 0x32, 0xb5, 0x22, 0xa6, 0xc0, 0x4e, 0x48,
+        0x24, 0x99, 0xb0, 0x11, 0xef, 0x3c, 0x3e, 0x9d,
+        0xc5, 0x6a, 0x1a, 0x61, 0xcf, 0xeb, 0x78, 0xb3,
+        0x40, 0x32, 0xd2, 0x6d, 0xbd, 0xc3, 0xca, 0xc5,
+        0x1a, 0x32, 0x79, 0xbc, 0x93, 0x4b, 0x9b, 0xce,
+        0x2d, 0x9c, 0x19, 0xbf, 0x85, 0x82, 0x35, 0x61,
+        0x3b, 0xa7, 0x84, 0xe4, 0x8e, 0x29, 0x2d, 0x22,
+        0xc6, 0xb5, 0xa2, 0x8e, 0x1d, 0x1b, 0xb8, 0x60,
+        0x52, 0x4f, 0xb7, 0xb5, 0xf9, 0xb3, 0xd9, 0xa5,
+        0xf4, 0xda, 0x66, 0xe3, 0x40, 0x58, 0x5b, 0xd2,
+        0x49, 0x6f, 0xe6, 0xd6, 0x94, 0x2d, 0xb8, 0xd0,
+        0x5d, 0x71, 0x6f, 0xec, 0x03, 0xb1, 0x7d, 0x19,
+        0xab, 0xb5, 0x8b, 0x33, 0x33, 0x2e, 0x24, 0xbe,
+        0xae, 0xc7, 0x99, 0x5d, 0x69, 0x52, 0x53, 0x64,
+        0xfe, 0x13, 0x9a, 0xa1, 0xfd, 0x62, 0x05, 0x46,
+        0x68, 0xc5, 0x8f, 0x23, 0xf1, 0xf9, 0x4c, 0xfd } /* expected */
+    }, {
+      false, /* encrypt */
+      1, /* key_size_index */
+      4, /* key_area */
+      { 0x21, 0xc8, 0x22, 0x9a, 0x4d, 0xce, 0xaf, 0x53,
+        0x3f, 0xe4, 0xe9, 0x6e, 0xce, 0xd4, 0x82, 0xa6 }, /* mdata */
+      16, /* mdata_len */
+      { 0x49, 0xaa, 0xbe, 0x67, 0xda, 0x53, 0x22, 0xb6,
+        0xe1, 0x1d, 0x63, 0xb7, 0x8b, 0x5a, 0x0e, 0x15 } /* expected */
+    }, {
+      false, /* encrypt */
+      1, /* key_size_index */
+      6, /* key_area */
+      { 0x95, 0x2f, 0x45, 0x46, 0xa8, 0xbf, 0x71, 0x66,
+        0x96, 0x49, 0x17, 0xec, 0xe0, 0x1b, 0xda, 0x3c,
+        0x68, 0x57, 0xe4, 0x27, 0xce, 0xf5, 0xda, 0x0f,
+        0xf9, 0x0b, 0x0e, 0x4b, 0xf4, 0x4c, 0xf7, 0xcc,
+        0xfc, 0xcf, 0xdf, 0x01, 0xd7, 0x13, 0xdc, 0xf9,
+        0x67, 0x3f, 0x01, 0xc8, 0x7e, 0xae, 0xd5, 0x2b,
+        0xf4, 0xaa, 0x04, 0x6f, 0xf7, 0x78, 0x55, 0x8e,
+        0xa3, 0x96, 0xdc, 0x9c, 0xd2, 0x40, 0x71, 0x61,
+        0x36, 0x38, 0x61, 0x48, 0xa5, 0xc7, 0x63, 0x78,
+        0xb3, 0xff, 0xcd, 0x40, 0x86, 0x44, 0x07, 0xb8,
+        0xe6, 0x0b, 0x40, 0xa5, 0x94, 0xe0, 0x61, 0x9e,
+        0xdd, 0xae, 0x3f, 0x6d, 0x6e, 0x3b, 0x15, 0xb8,
+        0x6a, 0xf2, 0x31, 0xe1, 0xba, 0xe5, 0xed, 0x2a,
+        0xa5, 0x12, 0xe1, 0x1d, 0xa0, 0xe5, 0x57, 0x2b,
+        0x67, 0xff, 0xff, 0x93, 0x4c, 0x36, 0xe5, 0x85,
+        0xcf, 0xdd, 0x9f, 0x87, 0x70, 0x45, 0xcb, 0x19,
+        0xc1, 0x83, 0xb9, 0x94, 0xbf, 0x74, 0x64, 0x58,
+        0x62, 0xff, 0xa7, 0x26, 0x73, 0x9a, 0xad, 0xcb,
+        0x9e, 0x10, 0xaa, 0xff, 0xc8, 0x81, 0xc8, 0x8c,
+        0xa3, 0xaa, 0x65, 0xb3, 0x7f, 0x66, 0x7b, 0xcb }, /* mdata */
+      160, /* mdata_len */
+      { 0xb8, 0xbb, 0x5c, 0xe5, 0x3a, 0x15, 0xaa, 0x6d,
+        0xfd, 0xf2, 0xcb, 0x61, 0xbc, 0x8e, 0x36, 0x17,
+        0xd1, 0xd0, 0xfe, 0xfe, 0x9b, 0xa5, 0xd1, 0x75,
+        0x55, 0x04, 0x70, 0xe3, 0x23, 0x97, 0xf6, 0xf3,
+        0xb3, 0xe6, 0x5b, 0x43, 0xbd, 0xed, 0x2b, 0x21,
+        0xe5, 0xc1, 0x81, 0xd3, 0xc4, 0xc4, 0xc5, 0x26,
+        0xc4, 0x1c, 0xea, 0xb0, 0x44, 0x28, 0x95, 0x08,
+        0x45, 0x80, 0x48, 0xb6, 0x33, 0x52, 0xdf, 0xc3,
+        0x79, 0xde, 0x37, 0x3f, 0xd1, 0x9a, 0x2c, 0x90,
+        0x0c, 0x43, 0x52, 0x4b, 0x75, 0x94, 0x9e, 0x67,
+        0x7c, 0xce, 0xda, 0x86, 0x6f, 0x7f, 0x2b, 0xcc,
+        0x48, 0x44, 0xef, 0x2e, 0x5d, 0xac, 0x5b, 0x80,
+        0x4b, 0x40, 0x45, 0xe6, 0x57, 0xc8, 0x15, 0x6d,
+        0x1d, 0xcd, 0xb4, 0x3c, 0xbf, 0x2f, 0x5e, 0x00,
+        0xa4, 0xf9, 0x25, 0x5e, 0x3b, 0xe2, 0x43, 0x94,
+        0x36, 0xc4, 0xd0, 0x44, 0x9a, 0x8d, 0x2c, 0x4c,
+        0x1a, 0x56, 0xbe, 0xce, 0x98, 0xea, 0x0f, 0xd6,
+        0x8a, 0xba, 0xf1, 0x23, 0x98, 0x03, 0x99, 0x94,
+        0xae, 0xbf, 0xfc, 0x69, 0x2b, 0x90, 0x00, 0xe5,
+        0x80, 0x47, 0x9b, 0x4f, 0x4b, 0x28, 0xb5, 0xfe } /* expected */
+    }, {
+      true, /* encrypt */
+      2, /* key_size_index */
+      0, /* key_area */
+      { 0xcc, 0xc6, 0x2c, 0x6b, 0x0a, 0x09, 0xa6, 0x71,
+        0xd6, 0x44, 0x56, 0x81, 0x8d, 0xb2, 0x9a, 0x4d }, /* mdata */
+      16, /* mdata_len */
+      { 0xdf, 0x86, 0x34, 0xca, 0x02, 0xb1, 0x3a, 0x12,
+        0x5b, 0x78, 0x6e, 0x1d, 0xce, 0x90, 0x65, 0x8b } /* expected */
+    }, {
+      true, /* encrypt */
+      2, /* key_size_index */
+      2, /* key_area */
+      { 0xc9, 0x1b, 0x8a, 0x7b, 0x9c, 0x51, 0x17, 0x84,
+        0xb6, 0xa3, 0x7f, 0x73, 0xb2, 0x90, 0x51, 0x6b,
+        0xb9, 0xef, 0x1e, 0x8d, 0xf6, 0x8d, 0x89, 0xbf,
+        0x49, 0x16, 0x9e, 0xac, 0x40, 0x39, 0x65, 0x0c,
+        0x43, 0x07, 0xb6, 0x26, 0x0e, 0x9c, 0x4e, 0x93,
+        0x65, 0x02, 0x23, 0x44, 0x02, 0x52, 0xf5, 0xc7,
+        0xd3, 0x1c, 0x26, 0xc5, 0x62, 0x09, 0xcb, 0xd0,
+        0x95, 0xbf, 0x03, 0x5b, 0x97, 0x05, 0x88, 0x0a,
+        0x16, 0x28, 0x83, 0x2d, 0xaf, 0x9d, 0xa5, 0x87,
+        0xa6, 0xe7, 0x73, 0x53, 0xdb, 0xbc, 0xe1, 0x89,
+        0xf9, 0x63, 0x23, 0x5d, 0xf1, 0x60, 0xc0, 0x08,
+        0xa7, 0x53, 0xe8, 0xcc, 0xea, 0x1e, 0x07, 0x32,
+        0xaa, 0x46, 0x9a, 0x97, 0x65, 0x9c, 0x42, 0xe6,
+        0xe3, 0x1c, 0x16, 0xa7, 0x23, 0x15, 0x3e, 0x39,
+        0x95, 0x8a, 0xbe, 0x5b, 0x8a, 0xd8, 0x8f, 0xf2,
+        0xe8, 0x9a, 0xf4, 0x06, 0x22, 0xca, 0x0b, 0x0d,
+        0x67, 0x29, 0xa2, 0x6c, 0x1a, 0xe0, 0x4d, 0x3b,
+        0x83, 0x67, 0xb5, 0x48, 0xc4, 0xa6, 0x33, 0x5f,
+        0x0e, 0x5a, 0x9e, 0xc9, 0x14, 0xbb, 0x61, 0x13,
+        0xc0, 0x5c, 0xd0, 0x11, 0x25, 0x52, 0xbc, 0x21 }, /* mdata */
+      160, /* mdata_len */
+      { 0x05, 0xd5, 0x1a, 0xf0, 0xe2, 0xb6, 0x1e, 0x2c,
+        0x06, 0xcb, 0x1e, 0x84, 0x3f, 0xee, 0x31, 0x72,
+        0x82, 0x5e, 0x63, 0xb5, 0xd1, 0xce, 0x81, 0x83,
+        0xb7, 0xe1, 0xdb, 0x62, 0x68, 0xdb, 0x5a, 0xa7,
+        0x26, 0x52, 0x1f, 0x46, 0xe9, 0x48, 0x02, 0x8a,
+        0xa4, 0x43, 0xaf, 0x9e, 0xbd, 0x8b, 0x7c, 0x6b,
+        0xaf, 0x95, 0x80, 0x67, 0xab, 0x0d, 0x4a, 0x8a,
+        0xc5, 0x30, 0xec, 0xbb, 0x68, 0xcd, 0xfc, 0x3e,
+        0xb9, 0x30, 0x34, 0xa4, 0x28, 0xeb, 0x7e, 0x8f,
+        0x6a, 0x38, 0x13, 0xce, 0xa6, 0x18, 0x90, 0x68,
+        0xdf, 0xec, 0xfa, 0x26, 0x8b, 0x7e, 0xcd, 0x59,
+        0x87, 0xf8, 0xcb, 0x27, 0x32, 0xc6, 0x88, 0x2b,
+        0xbe, 0xc8, 0xf7, 0x16, 0xba, 0xc2, 0x54, 0xd7,
+        0x22, 0x69, 0x23, 0x0a, 0xec, 0x5d, 0xc7, 0xf5,
+        0xa6, 0xb8, 0x66, 0xfd, 0x30, 0x52, 0x42, 0x55,
+        0x2d, 0x40, 0x0f, 0x5b, 0x04, 0x04, 0xf1, 0x9c,
+        0xbf, 0xe7, 0x29, 0x1f, 0xab, 0x69, 0x0e, 0xcf,
+        0xe6, 0x01, 0x8c, 0x43, 0x09, 0xfc, 0x63, 0x9d,
+        0x1b, 0x65, 0xfc, 0xb6, 0x5e, 0x64, 0x3e, 0xdb,
+        0x0a, 0xd1, 0xf0, 0x9c, 0xfe, 0x9c, 0xee, 0x4a } /* expected */
+    }, {
+      false, /* encrypt */
+      2, /* key_size_index */
+      4, /* key_area */
+      { 0x41, 0x54, 0xc0, 0xbe, 0x71, 0x07, 0x29, 0x45,
+        0xd8, 0x15, 0x6f, 0x5f, 0x04, 0x6d, 0x19, 0x8d }, /* mdata */
+      16, /* mdata_len */
+      { 0x8b, 0x2b, 0x1b, 0x22, 0xf7, 0x33, 0xac, 0x09,
+        0xd1, 0x19, 0x6d, 0x6b, 0xe6, 0xa8, 0x7a, 0x72 } /* expected */
+    }, {
+      false, /* encrypt */
+      2, /* key_size_index */
+      6, /* key_area */
+      { 0x2c, 0x48, 0x7f, 0xa9, 0x6f, 0x40, 0x90, 0xc5,
+        0x6a, 0xa1, 0xb5, 0xbe, 0x81, 0x91, 0x8a, 0x93,
+        0x4c, 0x94, 0x92, 0x87, 0x8f, 0xb0, 0xcd, 0x68,
+        0x6d, 0xcf, 0x8d, 0x17, 0xd8, 0x64, 0x85, 0x45,
+        0x4c, 0x51, 0x23, 0x7b, 0xbd, 0x09, 0x20, 0x5d,
+        0xce, 0xf1, 0x55, 0x2f, 0x43, 0x0d, 0xd0, 0x98,
+        0xb9, 0xd8, 0x27, 0xa6, 0x94, 0x73, 0x0c, 0x13,
+        0x3a, 0x02, 0x22, 0xc7, 0x7f, 0x54, 0x0f, 0x9d,
+        0x5f, 0xc2, 0xd3, 0x6a, 0xf3, 0x59, 0x58, 0x3c,
+        0x9e, 0x3b, 0x49, 0xdf, 0x88, 0x42, 0x28, 0xa6,
+        0x4d, 0xe7, 0x9b, 0x67, 0xf6, 0x62, 0x07, 0xc8,
+        0x28, 0x13, 0x60, 0xb9, 0x9b, 0x21, 0x40, 0x42,
+        0xce, 0x61, 0x36, 0x7f, 0xf9, 0x79, 0x60, 0xe9,
+        0x44, 0x45, 0x3c, 0xd6, 0x36, 0x79, 0xbb, 0x44,
+        0x70, 0x88, 0x97, 0xd2, 0x9b, 0xc5, 0xe7, 0x0f,
+        0x9f, 0xc8, 0xf1, 0xf7, 0x15, 0x14, 0x3f, 0xbb,
+        0x00, 0xf7, 0xf5, 0xc1, 0xb7, 0xb1, 0x61, 0xec,
+        0x26, 0xd8, 0xd4, 0x1d, 0x36, 0xfa, 0xb0, 0xfa,
+        0x8a, 0x85, 0xc3, 0xee, 0x6c, 0xe4, 0xd3, 0x70,
+        0x07, 0xeb, 0x7a, 0x89, 0xd6, 0x75, 0x35, 0x90 }, /* mdata */
+      160, /* mdata_len */
+      { 0x31, 0xfd, 0x5a, 0x30, 0x7e, 0x27, 0x9b, 0x2f,
+        0x34, 0x58, 0x1e, 0x2c, 0x43, 0x23, 0x79, 0xdf,
+        0x8e, 0xcc, 0xba, 0xf7, 0x95, 0x32, 0x93, 0x89,
+        0x16, 0x71, 0x1c, 0xd3, 0x77, 0x54, 0x0b, 0x90,
+        0x45, 0x37, 0x3e, 0x47, 0xf2, 0x21, 0x4b, 0x8f,
+        0x87, 0x60, 0x40, 0xaf, 0x73, 0x3f, 0x6c, 0x9d,
+        0x8f, 0x03, 0xa7, 0xc5, 0x8f, 0x87, 0x14, 0xd2,
+        0xfb, 0xb4, 0xc1, 0x4a, 0xf5, 0x9c, 0x75, 0xb4,
+        0x83, 0xad, 0xc7, 0x18, 0x94, 0x6e, 0xe9, 0x07,
+        0xa1, 0x82, 0x86, 0xcc, 0x4e, 0xfd, 0x20, 0x67,
+        0x89, 0x06, 0x4b, 0x6f, 0x1b, 0x19, 0x5f, 0x0d,
+        0x0d, 0x23, 0x44, 0x68, 0xe4, 0xf0, 0x0e, 0x6f,
+        0x1c, 0xad, 0x5c, 0xd3, 0xb9, 0xc0, 0xa6, 0x43,
+        0xb3, 0xc0, 0xdd, 0x09, 0x28, 0x0f, 0xf2, 0xe2,
+        0xa5, 0x92, 0x91, 0x83, 0x40, 0x93, 0x84, 0xdd,
+        0x72, 0xdc, 0x94, 0xe3, 0x96, 0x87, 0xea, 0x2b,
+        0x62, 0x3d, 0x5d, 0x77, 0x67, 0x00, 0xbd, 0x8b,
+        0x36, 0xe6, 0x13, 0x0f, 0xfd, 0xe9, 0x66, 0xf1,
+        0x34, 0xc4, 0xb1, 0xf3, 0x5f, 0x29, 0xc5, 0xcc,
+        0x4a, 0x03, 0x29, 0x7e, 0x1c, 0xcc, 0x95, 0x39 } /* expected */
+    }
+  };
+  static uint8_t mdata[MDATA_MAX_LEN];
+  static int i;
+  static uint8_t key_size_index = -1, ret;
+  static int8_t res;
+  static rtimer_clock_t time, time2, total_time;
+
+  PROCESS_BEGIN();
+
+  puts("-----------------------------------------\n"
+       "Initializing cryptoprocessor...");
+  crypto_init();
+
+  for(i = 0; i < sizeof(vectors) / sizeof(vectors[0]); i++) {
+    if(key_size_index != vectors[i].key_size_index) {
+      key_size_index = vectors[i].key_size_index;
+      printf("-----------------------------------------\n"
+             "Filling %d-bit key store...\n", 128 + (key_size_index << 6));
+      time = RTIMER_NOW();
+      ret = aes_load_keys(keys[key_size_index].keys,
+              keys[key_size_index].key_size, keys[key_size_index].count, 0);
+      time = RTIMER_NOW() - time;
+      printf("aes_load_keys(): %s, %lu us\n", str_res[ret],
+             (uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
+      PROCESS_PAUSE();
+      if(ret != CRYPTO_SUCCESS) {
+        break;
+      }
+    }
+
+    printf("-----------------------------------------\n"
+           "Test vector #%d: %s\n"
+           "key_area=%d mdata_len=%d\n",
+           i, vectors[i].encrypt ? "encrypt" : "decrypt",
+           vectors[i].key_area, vectors[i].mdata_len);
+
+    /* mdata has to be in SRAM. */
+    rom_util_memcpy(mdata, vectors[i].mdata, vectors[i].mdata_len);
+
+    time = RTIMER_NOW();
+    ret = ecb_crypt_start(vectors[i].encrypt, vectors[i].key_area, mdata, mdata,
+                          vectors[i].mdata_len, &ecb_test_process);
+    time2 = RTIMER_NOW();
+    time = time2 - time;
+    total_time = time;
+    if(ret == CRYPTO_SUCCESS) {
+      PROCESS_WAIT_EVENT_UNTIL((res = ecb_crypt_check_status()) !=
+                               CRYPTO_PENDING);
+      time2 = RTIMER_NOW() - time2;
+      total_time += time2;
+    }
+    printf("ecb_crypt_start(): %s, %lu us\n", str_res[ret],
+           (uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
+    if(ret != CRYPTO_SUCCESS) {
+      PROCESS_PAUSE();
+      continue;
+    }
+    printf("ecb_crypt_check_status() wait: %s, %lu us\n", str_res[res],
+           (uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND));
+    PROCESS_PAUSE();
+    if(res != CRYPTO_SUCCESS) {
+      continue;
+    }
+
+    if(rom_util_memcmp(mdata, vectors[i].expected, vectors[i].mdata_len)) {
+      puts("Output message does not match expected one");
+    } else {
+      puts("Output message OK");
+    }
+
+    printf("Total duration: %lu us\n",
+           (uint32_t)((uint64_t)total_time * 1000000 / RTIMER_SECOND));
+  }
+
+  puts("-----------------------------------------\n"
+       "Disabling cryptoprocessor...");
+  crypto_disable();
+
+  puts("Done!");
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * @}
+ * @}
+ */

platform/cc2538dk/Makefile.cc2538dk

@@ -26,7 +26,7 @@ include $(CONTIKI_CPU)/Makefile.cc2538
 
 MODULES += core/net core/net/mac \
            core/net/mac/contikimac \
-           core/net/llsec
+           core/net/llsec core/net/llsec/noncoresec
 
 PYTHON = python
 BSL_FLAGS += -e -w -v

platform/cc2538dk/README.md

@@ -30,7 +30,7 @@ In terms of hardware support, the following drivers have been implemented:
     * General-Purpose Timers. NB: GPT0 is in use by the platform code, the remaining GPTs are available for application development.
     * ADC
     * PWM
-    * Cryptoprocessor (AES-CCM-256, SHA-256)
+    * Cryptoprocessor (AES-ECB/CCM-128/192/256, SHA-256)
     * Public Key Accelerator (ECDH, ECDSA)
     * Flash-based port of Coffee
   * SmartRF06 EB and BB peripherals

platform/cc2538dk/contiki-conf.h

@@ -500,6 +500,24 @@ typedef uint32_t rtimer_clock_t;
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 /** @} */
 /*---------------------------------------------------------------------------*/
+/**
+ * \name Security
+ *
+ * @{
+ */
+#ifndef CRYPTO_CONF_INIT
+#define CRYPTO_CONF_INIT        1 /**< Whether to init cryptoprocessor */
+#endif
+
+#ifndef AES_128_CONF
+#define AES_128_CONF            cc2538_aes_128_driver /**< AES-128 driver */
+#endif
+
+#ifndef CCM_STAR_CONF
+#define CCM_STAR_CONF           cc2538_ccm_star_driver /**< AES-CCM* driver */
+#endif
+/** @} */
+/*---------------------------------------------------------------------------*/
 
 #endif /* CONTIKI_CONF_H_ */
 

platform/cc2538dk/contiki-main.c

@@ -56,6 +56,7 @@
 #include "dev/slip.h"
 #include "dev/cc2538-rf.h"
 #include "dev/udma.h"
+#include "dev/crypto.h"
 #include "usb/usb-serial.h"
 #include "lib/random.h"
 #include "net/netstack.h"
@@ -201,6 +202,12 @@ main(void)
   ctimer_init();
 
   set_rf_params();
+
+#if CRYPTO_CONF_INIT
+  crypto_init();
+  crypto_disable();
+#endif
+
   netstack_init();
 
 #if NETSTACK_CONF_WITH_IPV6

platform/zoul/Makefile.zoul

@@ -45,7 +45,7 @@ include $(CONTIKI_CPU)/Makefile.cc2538
 
 MODULES += core/net core/net/mac \
            core/net/mac/contikimac \
-           core/net/llsec dev/cc1200
+           core/net/llsec core/net/llsec/noncoresec dev/cc1200
 
 BSL = $(CONTIKI)/tools/cc2538-bsl/cc2538-bsl.py
 

platform/zoul/README.md

@@ -51,7 +51,7 @@ In terms of hardware support, the following drivers have been implemented for th
     * Low Power Modes
     * General-Purpose Timers. NB: GPT0 is in use by the platform code, the remaining GPTs are available for application development.
     * ADC
-    * Cryptoprocessor (AES-CCM-256, SHA-256)
+    * Cryptoprocessor (AES-ECB/CCM-128/192/256, SHA-256)
     * Public Key Accelerator (ECDH, ECDSA)
     * Flash-based port of Coffee
     * PWM

platform/zoul/contiki-conf.h

@@ -568,6 +568,24 @@ typedef uint32_t rtimer_clock_t;
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 /** @} */
 /*---------------------------------------------------------------------------*/
+/**
+ * \name Security
+ *
+ * @{
+ */
+#ifndef CRYPTO_CONF_INIT
+#define CRYPTO_CONF_INIT        1 /**< Whether to init cryptoprocessor */
+#endif
+
+#ifndef AES_128_CONF
+#define AES_128_CONF            cc2538_aes_128_driver /**< AES-128 driver */
+#endif
+
+#ifndef CCM_STAR_CONF
+#define CCM_STAR_CONF           cc2538_ccm_star_driver /**< AES-CCM* driver */
+#endif
+/** @} */
+/*---------------------------------------------------------------------------*/
 
 #endif /* CONTIKI_CONF_H_ */
 

platform/zoul/contiki-main.c

@@ -57,6 +57,7 @@
 #include "dev/slip.h"
 #include "dev/cc2538-rf.h"
 #include "dev/udma.h"
+#include "dev/crypto.h"
 #include "usb/usb-serial.h"
 #include "lib/random.h"
 #include "net/netstack.h"
@@ -195,6 +196,11 @@ main(void)
 
   board_init();
 
+#if CRYPTO_CONF_INIT
+  crypto_init();
+  crypto_disable();
+#endif
+
   netstack_init();
   set_rf_params();