diff --git a/cpu/cc2538/Makefile.cc2538 b/cpu/cc2538/Makefile.cc2538 index cfa0b1360..e7c53f4df 100644 --- a/cpu/cc2538/Makefile.cc2538 +++ b/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 ecb.c cbc.c ctr.c ccm.c sha256.c +CONTIKI_CPU_SOURCEFILES += crypto.c aes.c ecb.c cbc.c ctr.c cbc-mac.c ccm.c +CONTIKI_CPU_SOURCEFILES += 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 diff --git a/cpu/cc2538/dev/cbc-mac.c b/cpu/cc2538/dev/cbc-mac.c new file mode 100644 index 000000000..0635e4f53 --- /dev/null +++ b/cpu/cc2538/dev/cbc-mac.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2016, Benoît Thébaudeau + * 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-cbc-mac + * @{ + * + * \file + * Implementation of the cc2538 AES-CBC-MAC driver + */ +#include "contiki.h" +#include "dev/rom-util.h" +#include "dev/cbc-mac.h" + +#include +#include +/*---------------------------------------------------------------------------*/ +uint8_t +cbc_mac_auth_start(uint8_t key_area, const void *mdata, uint16_t mdata_len, + struct process *process) +{ + uint32_t ctrl; + uint32_t iv[AES_IV_LEN / sizeof(uint32_t)]; + + /* Program AES-CBC-MAC authentication operation */ + ctrl = AES_AES_CTRL_SAVE_CONTEXT | /* Save context */ + AES_AES_CTRL_CBC_MAC | /* CBC-MAC */ + AES_AES_CTRL_DIRECTION_ENCRYPT; /* Encryption */ + + /* Prepare the crypto initialization vector + * Set initialization vector to 0 */ + rom_util_memset(iv, 0, AES_IV_LEN); + + return aes_auth_crypt_start(ctrl, key_area, iv, NULL, 0, + mdata, NULL, mdata_len, process); +} +/*---------------------------------------------------------------------------*/ +uint8_t +cbc_mac_auth_get_result(const void *mac_in, void *mac_out) +{ + uint32_t tag[AES_TAG_LEN / sizeof(uint32_t)]; + uint8_t ret; + + ret = aes_auth_crypt_get_result(NULL, tag); + if(ret != CRYPTO_SUCCESS) { + return ret; + } + + if(mac_in != NULL) { + /* Check MAC */ + if(rom_util_memcmp(tag, mac_in, CBC_MAC_MAC_LEN)) { + ret = AES_AUTHENTICATION_FAILED; + } + } + + if(mac_out != NULL) { + /* Copy tag to MAC */ + rom_util_memcpy(mac_out, tag, CBC_MAC_MAC_LEN); + } + + return ret; +} + +/** @} */ diff --git a/cpu/cc2538/dev/cbc-mac.h b/cpu/cc2538/dev/cbc-mac.h new file mode 100644 index 000000000..76b750bf5 --- /dev/null +++ b/cpu/cc2538/dev/cbc-mac.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2016, Benoît Thébaudeau + * 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-cbc-mac cc2538 AES-CBC-MAC + * + * Driver for the cc2538 AES-CBC-MAC mode of the security core + * @{ + * + * \file + * Header file for the cc2538 AES-CBC-MAC driver + */ +#ifndef CBC_MAC_H_ +#define CBC_MAC_H_ + +#include "contiki.h" +#include "dev/aes.h" + +#include +#include +/*---------------------------------------------------------------------------*/ +/** \name AES-CBC-MAC constants + * @{ + */ +#define CBC_MAC_MAC_LEN AES_TAG_LEN +/** @} */ +/*---------------------------------------------------------------------------*/ +/** \name AES-CBC-MAC functions + * @{ + */ + +/** \brief Starts a CBC-MAC authentication operation + * \param key_area Area in Key RAM where the key is stored (0 to + * \c AES_KEY_AREAS - 1) + * \param mdata Pointer to message to authenticate in SRAM + * \param mdata_len Length of message to authenticate 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/CBC-MAC error code + * \warning CBC-MAC is not secure for variable-length messages. There are a few + * workarounds that can be implemented by the caller, like prepending the + * message length to the first block of the message before passing it. + */ +uint8_t cbc_mac_auth_start(uint8_t key_area, const void *mdata, + uint16_t mdata_len, struct process *process); + +/** \brief Checks the status of the CBC-MAC authentication operation + * \retval false Result not yet available, and no error occurred + * \retval true Result available, or error occurred + */ +#define cbc_mac_auth_check_status aes_auth_crypt_check_status + +/** \brief Gets the result of the CBC-MAC authentication operation + * \param mac_in Pointer to 128-bit input MAC, or \c NULL + * \param mac_out Pointer to 128-bit output MAC, or \c NULL + * \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CBC-MAC error code + * \note This function must be called only after \c cbc_mac_auth_start(). + */ +uint8_t cbc_mac_auth_get_result(const void *mac_in, void *mac_out); + +/** @} */ + +#endif /* CBC_MAC_H_ */ + +/** + * @} + * @} + */ diff --git a/examples/cc2538dk/crypto/Makefile b/examples/cc2538dk/crypto/Makefile index 49625ad59..c015301e9 100644 --- a/examples/cc2538dk/crypto/Makefile +++ b/examples/cc2538dk/crypto/Makefile @@ -1,4 +1,4 @@ -CONTIKI_PROJECT = ecb-test cbc-test ctr-test ccm-test sha256-test +CONTIKI_PROJECT = ecb-test cbc-test ctr-test cbc-mac-test ccm-test sha256-test all: $(CONTIKI_PROJECT) diff --git a/examples/cc2538dk/crypto/cbc-mac-test.c b/examples/cc2538dk/crypto/cbc-mac-test.c new file mode 100644 index 000000000..ff355fc1f --- /dev/null +++ b/examples/cc2538dk/crypto/cbc-mac-test.c @@ -0,0 +1,506 @@ +/* + * Copyright (c) 2016, Benoît Thébaudeau + * 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-cbc-mac-test cc2538dk AES-CBC-MAC Test Project + * + * AES-CBC-MAC access example for CC2538 on SmartRF06EB. + * + * This example shows how AES-CBC-MAC should be used. The example also + * verifies the AES-CBC-MAC functionality. + * + * @{ + * + * \file + * Example demonstrating AES-CBC-MAC on the cc2538dk platform + */ +#include "contiki.h" +#include "sys/rtimer.h" +#include "dev/rom-util.h" +#include "dev/cbc-mac.h" + +#include +#include +#include +/*---------------------------------------------------------------------------*/ +#define MDATA_MAX_LEN 160 +/*---------------------------------------------------------------------------*/ +PROCESS(cbc_mac_test_process, "cbc_mac test process"); +AUTOSTART_PROCESSES(&cbc_mac_test_process); +/*---------------------------------------------------------------------------*/ +PROCESS_THREAD(cbc_mac_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] = { + { 0x1f, 0x8e, 0x49, 0x73, 0x95, 0x3f, 0x3f, 0xb0, + 0xbd, 0x6b, 0x16, 0x66, 0x2e, 0x9a, 0x3c, 0x17 }, + { 0xb7, 0xf3, 0xc9, 0x57, 0x6e, 0x12, 0xdd, 0x0d, + 0xb6, 0x3e, 0x8f, 0x8f, 0xac, 0x2b, 0x9a, 0x39 }, + { 0x89, 0xa5, 0x53, 0x73, 0x04, 0x33, 0xf7, 0xe6, + 0xd6, 0x7d, 0x16, 0xd3, 0x73, 0xbd, 0x53, 0x60 }, + { 0x2c, 0x14, 0x41, 0x37, 0x51, 0xc3, 0x1e, 0x27, + 0x30, 0x57, 0x0b, 0xa3, 0x36, 0x1c, 0x78, 0x6b }, + { 0x6a, 0x70, 0x82, 0xcf, 0x8c, 0xda, 0x13, 0xef, + 0xf4, 0x8c, 0x81, 0x58, 0xdd, 0xa2, 0x06, 0xae }, + { 0x7b, 0x1a, 0xb9, 0x14, 0x4b, 0x02, 0x39, 0x31, + 0x5c, 0xd5, 0xee, 0xc6, 0xc7, 0x56, 0x63, 0xbd }, + { 0xba, 0xb0, 0xcc, 0xed, 0xdc, 0x0a, 0xbd, 0x63, + 0xe3, 0xf8, 0x2e, 0x9f, 0xbf, 0xf7, 0xb8, 0xaa }, + { 0x97, 0xa1, 0x02, 0x55, 0x29, 0xb9, 0x92, 0x5e, + 0x25, 0xbb, 0xe7, 0x87, 0x70, 0xca, 0x2f, 0x99 } + }; + static const uint8_t keys192[][192 / 8] = { + { 0xba, 0x75, 0xf4, 0xd1, 0xd9, 0xd7, 0xcf, 0x7f, + 0x55, 0x14, 0x45, 0xd5, 0x6c, 0xc1, 0xa8, 0xab, + 0x2a, 0x07, 0x8e, 0x15, 0xe0, 0x49, 0xdc, 0x2c }, + { 0x16, 0x2a, 0xd5, 0x0e, 0xe6, 0x4a, 0x07, 0x02, + 0xaa, 0x55, 0x1f, 0x57, 0x1d, 0xed, 0xc1, 0x6b, + 0x2c, 0x1b, 0x6a, 0x1e, 0x4d, 0x4b, 0x5e, 0xee }, + { 0x8e, 0x27, 0x40, 0xfb, 0xa1, 0x57, 0xae, 0xf2, + 0x42, 0x2e, 0x44, 0x23, 0x12, 0xd1, 0x5c, 0x14, + 0xd3, 0x12, 0x55, 0x36, 0x84, 0xfc, 0xdc, 0x15 }, + { 0x50, 0x9b, 0xaf, 0x46, 0xfb, 0x9d, 0xe3, 0x42, + 0x81, 0xda, 0xfc, 0xc3, 0xdb, 0x79, 0x59, 0x3b, + 0xff, 0xa8, 0x42, 0x69, 0x04, 0x30, 0x26, 0x88 } + }; + static const uint8_t keys256[][256 / 8] = { + { 0x6e, 0xd7, 0x6d, 0x2d, 0x97, 0xc6, 0x9f, 0xd1, + 0x33, 0x95, 0x89, 0x52, 0x39, 0x31, 0xf2, 0xa6, + 0xcf, 0xf5, 0x54, 0xb1, 0x5f, 0x73, 0x8f, 0x21, + 0xec, 0x72, 0xdd, 0x97, 0xa7, 0x33, 0x09, 0x07 }, + { 0x48, 0xbe, 0x59, 0x7e, 0x63, 0x2c, 0x16, 0x77, + 0x23, 0x24, 0xc8, 0xd3, 0xfa, 0x1d, 0x9c, 0x5a, + 0x9e, 0xcd, 0x01, 0x0f, 0x14, 0xec, 0x5d, 0x11, + 0x0d, 0x3b, 0xfe, 0xc3, 0x76, 0xc5, 0x53, 0x2b }, + { 0x43, 0xe9, 0x53, 0xb2, 0xae, 0xa0, 0x8a, 0x3a, + 0xd5, 0x2d, 0x18, 0x2f, 0x58, 0xc7, 0x2b, 0x9c, + 0x60, 0xfb, 0xe4, 0xa9, 0xca, 0x46, 0xa3, 0xcb, + 0x89, 0xe3, 0x86, 0x38, 0x45, 0xe2, 0x2c, 0x9e }, + { 0x87, 0x72, 0x5b, 0xd4, 0x3a, 0x45, 0x60, 0x88, + 0x14, 0x18, 0x07, 0x73, 0xf0, 0xe7, 0xab, 0x95, + 0xa3, 0xc8, 0x59, 0xd8, 0x3a, 0x21, 0x30, 0xe8, + 0x84, 0x19, 0x0e, 0x44, 0xd1, 0x4c, 0x69, 0x96 } + }; + 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 { + uint8_t key_size_index; + uint8_t key_area; + uint8_t mdata[MDATA_MAX_LEN]; + uint16_t mdata_len; + uint8_t mac[CBC_MAC_MAC_LEN]; + } vectors[] = { + { + 0, /* key_size_index */ + 0, /* key_area */ + { 0x45, 0xcf, 0x12, 0x96, 0x4f, 0xc8, 0x24, 0xab, + 0x76, 0x61, 0x6a, 0xe2, 0xf4, 0xbf, 0x08, 0x22 }, /* mdata */ + 16, /* mdata_len */ + { 0x97, 0x67, 0x0c, 0x83, 0x99, 0x24, 0xa4, 0xc6, + 0x15, 0xb0, 0xf6, 0x14, 0xae, 0x75, 0xa8, 0x69 } /* mac */ + }, { + 0, /* key_size_index */ + 1, /* key_area */ + { 0x9a, 0xc1, 0x99, 0x54, 0xce, 0x13, 0x19, 0xb3, + 0x54, 0xd3, 0x22, 0x04, 0x60, 0xf7, 0x1c, 0x1e, + 0x37, 0x3f, 0x1c, 0xd3, 0x36, 0x24, 0x08, 0x81, + 0x16, 0x0c, 0xfd, 0xe4, 0x6e, 0xbf, 0xed, 0x2e, + 0x79, 0x1e, 0x8d, 0x5a, 0x1a, 0x13, 0x6e, 0xbd, + 0x1d, 0xc4, 0x69, 0xde, 0xc0, 0x0c, 0x41, 0x87, + 0x72, 0x2b, 0x84, 0x1c, 0xda, 0xbc, 0xb2, 0x2c, + 0x1b, 0xe8, 0xa1, 0x46, 0x57, 0xda, 0x20, 0x0e }, /* mdata */ + 64, /* mdata_len */ + { 0x9d, 0x15, 0xb9, 0xfb, 0xff, 0xe2, 0x32, 0x97, + 0x56, 0x36, 0x36, 0x6d, 0x13, 0x65, 0x78, 0xb5 } /* mac */ + }, { + 0, /* key_size_index */ + 2, /* key_area */ + { 0x80, 0x7b, 0xc4, 0xea, 0x68, 0x4e, 0xed, 0xcf, + 0xdc, 0xca, 0x30, 0x18, 0x06, 0x80, 0xb0, 0xf1, + 0xae, 0x28, 0x14, 0xf3, 0x5f, 0x36, 0xd0, 0x53, + 0xc5, 0xae, 0xa6, 0x59, 0x5a, 0x38, 0x6c, 0x14, + 0x42, 0x77, 0x0f, 0x4d, 0x72, 0x97, 0xd8, 0xb9, + 0x18, 0x25, 0xee, 0x72, 0x37, 0x24, 0x1d, 0xa8, + 0x92, 0x5d, 0xd5, 0x94, 0xcc, 0xf6, 0x76, 0xae, + 0xcd, 0x46, 0xca, 0x20, 0x68, 0xe8, 0xd3, 0x7a, + 0x3a, 0x0e, 0xc8, 0xa7, 0xd5, 0x18, 0x5a, 0x20, + 0x1e, 0x66, 0x3b, 0x5f, 0xf3, 0x6a, 0xe1, 0x97, + 0x11, 0x01, 0x88, 0xa2, 0x35, 0x03, 0x76, 0x3b, + 0x82, 0x18, 0x82, 0x6d, 0x23, 0xce, 0xd7, 0x4b, + 0x31, 0xe9, 0xf6, 0xe2, 0xd7, 0xfb, 0xfa, 0x6c, + 0xb4, 0x34, 0x20, 0xc7, 0x80, 0x7a, 0x86, 0x25 }, /* mdata */ + 112, /* mdata_len */ + { 0x5f, 0x4f, 0x06, 0xe0, 0x62, 0x65, 0xf2, 0xeb, + 0x16, 0x1c, 0xda, 0x9f, 0x30, 0xe9, 0x79, 0x53 } /* mac */ + }, { + 0, /* key_size_index */ + 3, /* key_area */ + { 0x40, 0xd9, 0x30, 0xf9, 0xa0, 0x53, 0x34, 0xd9, + 0x81, 0x6f, 0xe2, 0x04, 0x99, 0x9c, 0x3f, 0x82, + 0xa0, 0x3f, 0x6a, 0x04, 0x57, 0xa8, 0xc4, 0x75, + 0xc9, 0x45, 0x53, 0xd1, 0xd1, 0x16, 0x69, 0x3a, + 0xdc, 0x61, 0x80, 0x49, 0xf0, 0xa7, 0x69, 0xa2, + 0xee, 0xd6, 0xa6, 0xcb, 0x14, 0xc0, 0x14, 0x3e, + 0xc5, 0xcc, 0xcd, 0xbc, 0x8d, 0xec, 0x4c, 0xe5, + 0x60, 0xcf, 0xd2, 0x06, 0x22, 0x57, 0x09, 0x32, + 0x6d, 0x4d, 0xe7, 0x94, 0x8e, 0x54, 0xd6, 0x03, + 0xd0, 0x1b, 0x12, 0xd7, 0xfe, 0xd7, 0x52, 0xfb, + 0x23, 0xf1, 0xaa, 0x44, 0x94, 0xfb, 0xb0, 0x01, + 0x30, 0xe9, 0xde, 0xd4, 0xe7, 0x7e, 0x37, 0xc0, + 0x79, 0x04, 0x2d, 0x82, 0x80, 0x40, 0xc3, 0x25, + 0xb1, 0xa5, 0xef, 0xd1, 0x5f, 0xc8, 0x42, 0xe4, + 0x40, 0x14, 0xca, 0x43, 0x74, 0xbf, 0x38, 0xf3, + 0xc3, 0xfc, 0x3e, 0xe3, 0x27, 0x73, 0x3b, 0x0c, + 0x8a, 0xee, 0x1a, 0xbc, 0xd0, 0x55, 0x77, 0x2f, + 0x18, 0xdc, 0x04, 0x60, 0x3f, 0x7b, 0x2c, 0x1e, + 0xa6, 0x9f, 0xf6, 0x62, 0x36, 0x1f, 0x2b, 0xe0, + 0xa1, 0x71, 0xbb, 0xdc, 0xea, 0x1e, 0x5d, 0x3f }, /* mdata */ + 160, /* mdata_len */ + { 0xda, 0x15, 0x2d, 0xf1, 0xf5, 0x6a, 0x44, 0x0e, + 0x1c, 0x7e, 0x27, 0x80, 0xed, 0x87, 0xd9, 0x3d } /* mac */ + }, { + 0, /* key_size_index */ + 4, /* key_area */ + { 0xf8, 0xeb, 0x31, 0xb3, 0x1e, 0x37, 0x4e, 0x96, + 0x00, 0x30, 0xcd, 0x1c, 0xad, 0xb0, 0xef, 0x0c }, /* mdata */ + 16, /* mdata_len */ + { 0x11, 0x0b, 0x18, 0xdb, 0xe0, 0x97, 0x56, 0x39, + 0xf7, 0x1d, 0x87, 0x7d, 0x6d, 0x07, 0x27, 0x55 } /* mac */ + }, { + 0, /* key_size_index */ + 5, /* key_area */ + { 0xd3, 0xf8, 0x9b, 0x71, 0xe0, 0x33, 0x07, 0x0f, + 0x9d, 0x75, 0x16, 0xa6, 0xcb, 0x4e, 0xa5, 0xef, + 0x51, 0xd6, 0xfb, 0x63, 0xd4, 0xf0, 0xfe, 0xa0, + 0x89, 0xd0, 0xa6, 0x0e, 0x47, 0xbb, 0xb3, 0xc2, + 0xe1, 0x0e, 0x9b, 0xa3, 0xb2, 0x82, 0xc7, 0xcb, + 0x79, 0xae, 0xfe, 0x30, 0x68, 0xce, 0x22, 0x83, + 0x77, 0xc2, 0x1a, 0x58, 0xfe, 0x5a, 0x0f, 0x88, + 0x83, 0xd0, 0xdb, 0xd3, 0xd0, 0x96, 0xbe, 0xca }, /* mdata */ + 64, /* mdata_len */ + { 0x6d, 0x91, 0x75, 0x52, 0x10, 0xcc, 0x69, 0x4a, + 0xde, 0x6c, 0xf6, 0xa0, 0xcd, 0x2d, 0x51, 0x8e } /* mac */ + }, { + 0, /* key_size_index */ + 6, /* key_area */ + { 0xc6, 0x5b, 0x94, 0xb1, 0xf2, 0x91, 0xfa, 0x9f, + 0x06, 0x00, 0xf2, 0x2c, 0x3c, 0x04, 0x32, 0xc8, + 0x95, 0xad, 0x5d, 0x17, 0x7b, 0xcc, 0xcc, 0x9e, + 0xa4, 0x4e, 0x8e, 0xc3, 0x39, 0xc9, 0xad, 0xf4, + 0x38, 0x55, 0xb3, 0x26, 0x17, 0x9d, 0x6d, 0x81, + 0xaa, 0x36, 0xef, 0x59, 0x46, 0x2f, 0xd8, 0x61, + 0x27, 0xe9, 0xd8, 0x1b, 0x0f, 0x28, 0x6f, 0x93, + 0x30, 0x6b, 0xf7, 0x4d, 0x4c, 0x79, 0xe4, 0x7c, + 0x1b, 0x3d, 0x4b, 0x74, 0xed, 0xd3, 0xa1, 0x62, + 0x90, 0xe3, 0xc6, 0x3b, 0x74, 0x2e, 0x41, 0xf2, + 0x0d, 0x66, 0xce, 0xee, 0x79, 0x43, 0x16, 0xbb, + 0x63, 0xd3, 0xbd, 0x00, 0x27, 0x12, 0xa1, 0xb1, + 0x36, 0xba, 0x61, 0x85, 0xbd, 0x5c, 0x1d, 0xab, + 0x81, 0xb0, 0x7d, 0xb9, 0x0d, 0x2a, 0xf5, 0xe5 }, /* mdata */ + 112, /* mdata_len */ + { 0x47, 0x12, 0x32, 0xdc, 0x47, 0xca, 0x7e, 0xe2, + 0xd8, 0xd6, 0x43, 0x6c, 0xe5, 0x75, 0x03, 0xb9 } /* mac */ + }, { + 0, /* key_size_index */ + 7, /* key_area */ + { 0x22, 0xcd, 0xc3, 0x30, 0x6f, 0xcd, 0x4d, 0x31, + 0xcc, 0xd3, 0x27, 0x20, 0xcb, 0xb6, 0x1b, 0xad, + 0x28, 0xd8, 0x55, 0x67, 0x06, 0x57, 0xc4, 0x8c, + 0x7b, 0x88, 0xc3, 0x1f, 0x4f, 0xa1, 0xf9, 0x3c, + 0x01, 0xb5, 0x7d, 0xa9, 0x0b, 0xe6, 0x3e, 0xad, + 0x67, 0xd6, 0xa3, 0x25, 0x52, 0x5e, 0x6e, 0xd4, + 0x50, 0x83, 0xe6, 0xfb, 0x70, 0xa5, 0x35, 0x29, + 0xd1, 0xfa, 0x0f, 0x55, 0x65, 0x3b, 0x94, 0x2a, + 0xf5, 0x9d, 0x78, 0xa2, 0x66, 0x03, 0x61, 0xd6, + 0x3a, 0x72, 0x90, 0x15, 0x5a, 0xc5, 0xc4, 0x33, + 0x12, 0xa2, 0x5b, 0x23, 0x5d, 0xac, 0xbb, 0xc8, + 0x63, 0xfa, 0xf0, 0x09, 0x40, 0xc9, 0x96, 0x24, + 0x07, 0x6d, 0xfa, 0x44, 0x06, 0x8e, 0x7c, 0x55, + 0x4c, 0x90, 0x38, 0x17, 0x69, 0x53, 0xe5, 0x71, + 0x75, 0x1d, 0xfc, 0x09, 0x54, 0xd4, 0x1d, 0x11, + 0x37, 0x71, 0xb0, 0x64, 0x66, 0xb1, 0xc8, 0xd1, + 0x3e, 0x0d, 0x4c, 0xb6, 0x75, 0xed, 0x58, 0xd1, + 0xa6, 0x19, 0xe1, 0x54, 0x09, 0x70, 0x98, 0x37, + 0x81, 0xdc, 0x11, 0xd2, 0xdd, 0x85, 0x25, 0xab, + 0x57, 0x45, 0x95, 0x8d, 0x61, 0x5d, 0xef, 0xda }, /* mdata */ + 160, /* mdata_len */ + { 0xe9, 0xae, 0x7e, 0x63, 0x54, 0x23, 0xc3, 0x66, + 0xd5, 0x23, 0xf9, 0x7c, 0x0e, 0xdb, 0x18, 0xb0 } /* mac */ + }, { + 1, /* key_size_index */ + 0, /* key_area */ + { 0xc5, 0x1f, 0xc2, 0x76, 0x77, 0x4d, 0xad, 0x94, + 0xbc, 0xdc, 0x1d, 0x28, 0x91, 0xec, 0x86, 0x68 }, /* mdata */ + 16, /* mdata_len */ + { 0x40, 0xd1, 0x7f, 0x9a, 0x6f, 0x5b, 0xc6, 0xaf, + 0x34, 0x1e, 0x6a, 0xc5, 0xe4, 0x9e, 0x71, 0xad } /* mac */ + }, { + 1, /* key_size_index */ + 2, /* key_area */ + { 0xbe, 0x8a, 0xbf, 0x00, 0x90, 0x13, 0x63, 0x98, + 0x7a, 0x82, 0xcc, 0x77, 0xd0, 0xec, 0x91, 0x69, + 0x7b, 0xa3, 0x85, 0x7f, 0x9e, 0x4f, 0x84, 0xbd, + 0x79, 0x40, 0x6c, 0x13, 0x8d, 0x02, 0x69, 0x8f, + 0x00, 0x32, 0x76, 0xd0, 0x44, 0x91, 0x20, 0xbe, + 0xf4, 0x57, 0x8d, 0x78, 0xfe, 0xca, 0xbe, 0x8e, + 0x07, 0x0e, 0x11, 0x71, 0x0b, 0x3f, 0x0a, 0x27, + 0x44, 0xbd, 0x52, 0x43, 0x4e, 0xc7, 0x00, 0x15, + 0x88, 0x4c, 0x18, 0x1e, 0xbd, 0xfd, 0x51, 0xc6, + 0x04, 0xa7, 0x1c, 0x52, 0xe4, 0xc0, 0xe1, 0x10, + 0xbc, 0x40, 0x8c, 0xd4, 0x62, 0xb2, 0x48, 0xa8, + 0x0b, 0x8a, 0x8a, 0xc0, 0x6b, 0xb9, 0x52, 0xac, + 0x1d, 0x7f, 0xae, 0xd1, 0x44, 0x80, 0x7f, 0x1a, + 0x73, 0x1b, 0x7f, 0xeb, 0xca, 0xf7, 0x83, 0x57, + 0x62, 0xde, 0xfe, 0x92, 0xec, 0xcf, 0xc7, 0xa9, + 0x94, 0x4e, 0x1c, 0x70, 0x2c, 0xff, 0xe6, 0xbc, + 0x86, 0x73, 0x3e, 0xd3, 0x21, 0x42, 0x31, 0x21, + 0x08, 0x5a, 0xc0, 0x2d, 0xf8, 0x96, 0x2b, 0xcb, + 0xc1, 0x93, 0x70, 0x92, 0xee, 0xbf, 0x0e, 0x90, + 0xa8, 0xb2, 0x0e, 0x3d, 0xd8, 0xc2, 0x44, 0xae }, /* mdata */ + 160, /* mdata_len */ + { 0xea, 0x57, 0x08, 0xb7, 0x8b, 0xf0, 0x51, 0xd6, + 0x94, 0xeb, 0x37, 0x01, 0xca, 0x6b, 0xd5, 0x7b } /* mac */ + }, { + 1, /* key_size_index */ + 4, /* key_area */ + { 0x39, 0xa9, 0xb4, 0x2d, 0xe1, 0x9e, 0x51, 0x2a, + 0xb7, 0xf3, 0x04, 0x35, 0x64, 0xc3, 0x51, 0x5a }, /* mdata */ + 16, /* mdata_len */ + { 0xa8, 0xd9, 0x3d, 0x9e, 0x1c, 0x14, 0xe4, 0x1e, + 0xa3, 0xf0, 0xaa, 0x50, 0xa4, 0xa3, 0x26, 0x09 } /* mac */ + }, { + 1, /* key_size_index */ + 6, /* key_area */ + { 0x69, 0x28, 0x29, 0x9c, 0x52, 0xb4, 0xf0, 0x47, + 0x92, 0x6f, 0x8a, 0x54, 0x15, 0x29, 0xda, 0x2d, + 0x6b, 0xba, 0xa3, 0x99, 0x14, 0x3c, 0xed, 0x8e, + 0xfb, 0x77, 0xab, 0x47, 0x40, 0x9d, 0x9a, 0x95, + 0x3a, 0x38, 0x6c, 0x7a, 0xbd, 0x60, 0x26, 0xf4, + 0x98, 0x31, 0xc7, 0x17, 0x62, 0x7c, 0x2a, 0x5e, + 0x77, 0xbd, 0x2d, 0x43, 0x3d, 0x4d, 0x13, 0x0d, + 0xac, 0xd9, 0x27, 0xea, 0x0d, 0x13, 0xa2, 0x3d, + 0x01, 0xa7, 0xcf, 0x39, 0xc6, 0x71, 0x6d, 0xaf, + 0xb6, 0xed, 0x55, 0x24, 0x10, 0xef, 0x5d, 0x27, + 0xfb, 0x94, 0x7b, 0xe2, 0xc8, 0x78, 0x2e, 0xee, + 0x78, 0x29, 0x19, 0x6c, 0x7e, 0xdc, 0xf1, 0x51, + 0xc6, 0x5f, 0x9a, 0x01, 0xf5, 0x4f, 0x8d, 0x20, + 0xf3, 0x8b, 0x7d, 0xa4, 0xa7, 0xe8, 0x3a, 0x2f, + 0x01, 0x27, 0xd5, 0x9d, 0x3e, 0x24, 0x05, 0xd8, + 0x67, 0x4f, 0xc9, 0xf4, 0x1b, 0x60, 0x4f, 0x78, + 0x8f, 0x47, 0x15, 0xf9, 0xd3, 0x62, 0x4e, 0xee, + 0x57, 0xf3, 0x87, 0xbf, 0xad, 0xd1, 0x8a, 0x1f, + 0x90, 0x5e, 0x83, 0x9c, 0x26, 0xb8, 0x61, 0x74, + 0x82, 0x34, 0x7f, 0xab, 0x6d, 0x08, 0x84, 0x5a }, /* mdata */ + 160, /* mdata_len */ + { 0x69, 0x27, 0xe7, 0xfb, 0x4c, 0xb9, 0x9d, 0x9c, + 0x54, 0xe2, 0x7f, 0x1c, 0x76, 0x20, 0xa0, 0x07 } /* mac */ + }, { + 2, /* key_size_index */ + 0, /* key_area */ + { 0x62, 0x82, 0xb8, 0xc0, 0x5c, 0x5c, 0x15, 0x30, + 0xb9, 0x7d, 0x48, 0x16, 0xca, 0x43, 0x47, 0x62 }, /* mdata */ + 16, /* mdata_len */ + { 0xa1, 0x07, 0x61, 0x82, 0xc1, 0xf4, 0x33, 0xc3, + 0xda, 0xfb, 0xe1, 0x1d, 0x3e, 0x71, 0xdd, 0x8a } /* mac */ + }, { + 2, /* key_size_index */ + 2, /* key_area */ + { 0x0c, 0x63, 0xd4, 0x13, 0xd3, 0x86, 0x45, 0x70, + 0xe7, 0x0b, 0xb6, 0x61, 0x8b, 0xf8, 0xa4, 0xb9, + 0x58, 0x55, 0x86, 0x68, 0x8c, 0x32, 0xbb, 0xa0, + 0xa5, 0xec, 0xc1, 0x36, 0x2f, 0xad, 0xa7, 0x4a, + 0xda, 0x32, 0xc5, 0x2a, 0xcf, 0xd1, 0xaa, 0x74, + 0x44, 0xba, 0x56, 0x7b, 0x4e, 0x7d, 0xaa, 0xec, + 0xf7, 0xcc, 0x1c, 0xb2, 0x91, 0x82, 0xaf, 0x16, + 0x4a, 0xe5, 0x23, 0x2b, 0x00, 0x28, 0x68, 0x69, + 0x56, 0x35, 0x59, 0x98, 0x07, 0xa9, 0xa7, 0xf0, + 0x7a, 0x1f, 0x13, 0x7e, 0x97, 0xb1, 0xe1, 0xc9, + 0xda, 0xbc, 0x89, 0xb6, 0xa5, 0xe4, 0xaf, 0xa9, + 0xdb, 0x58, 0x55, 0xed, 0xaa, 0x57, 0x50, 0x56, + 0xa8, 0xf4, 0xf8, 0x24, 0x22, 0x16, 0x24, 0x2b, + 0xb0, 0xc2, 0x56, 0x31, 0x0d, 0x9d, 0x32, 0x98, + 0x26, 0xac, 0x35, 0x3d, 0x71, 0x5f, 0xa3, 0x9f, + 0x80, 0xce, 0xc1, 0x44, 0xd6, 0x42, 0x45, 0x58, + 0xf9, 0xf7, 0x0b, 0x98, 0xc9, 0x20, 0x09, 0x6e, + 0x0f, 0x2c, 0x85, 0x5d, 0x59, 0x48, 0x85, 0xa0, + 0x06, 0x25, 0x88, 0x0e, 0x9d, 0xfb, 0x73, 0x41, + 0x63, 0xce, 0xce, 0xf7, 0x2c, 0xf0, 0x30, 0xb8 }, /* mdata */ + 160, /* mdata_len */ + { 0xf2, 0xb7, 0x45, 0x13, 0xd6, 0xcf, 0x2d, 0x80, + 0xe6, 0x72, 0xb8, 0x37, 0x45, 0xfa, 0xdc, 0x0f } /* mac */ + }, { + 2, /* key_size_index */ + 4, /* key_area */ + { 0xd5, 0x1d, 0x19, 0xde, 0xd5, 0xca, 0x4a, 0xe1, + 0x4b, 0x2b, 0x20, 0xb0, 0x27, 0xff, 0xb0, 0x20 }, /* mdata */ + 16, /* mdata_len */ + { 0xb0, 0x52, 0xa1, 0xdf, 0xe6, 0xa4, 0x8e, 0x63, + 0x43, 0x23, 0xdc, 0xaa, 0x85, 0xfa, 0xda, 0x3c } /* mac */ + }, { + 2, /* key_size_index */ + 6, /* key_area */ + { 0x5b, 0x97, 0xa9, 0xd4, 0x23, 0xf4, 0xb9, 0x74, + 0x13, 0xf3, 0x88, 0xd9, 0xa3, 0x41, 0xe7, 0x27, + 0xbb, 0x33, 0x9f, 0x8e, 0x18, 0xa3, 0xfa, 0xc2, + 0xf2, 0xfb, 0x85, 0xab, 0xdc, 0x8f, 0x13, 0x5d, + 0xeb, 0x30, 0x05, 0x4a, 0x1a, 0xfd, 0xc9, 0xb6, + 0xed, 0x7d, 0xa1, 0x6c, 0x55, 0xeb, 0xa6, 0xb0, + 0xd4, 0xd1, 0x0c, 0x74, 0xe1, 0xd9, 0xa7, 0xcf, + 0x8e, 0xdf, 0xae, 0xaa, 0x68, 0x4a, 0xc0, 0xbd, + 0x9f, 0x9d, 0x24, 0xba, 0x67, 0x49, 0x55, 0xc7, + 0x9d, 0xc6, 0xbe, 0x32, 0xae, 0xe1, 0xc2, 0x60, + 0xb5, 0x58, 0xff, 0x07, 0xe3, 0xa4, 0xd4, 0x9d, + 0x24, 0x16, 0x20, 0x11, 0xff, 0x25, 0x4d, 0xb8, + 0xbe, 0x07, 0x8e, 0x8a, 0xd0, 0x7e, 0x64, 0x8e, + 0x6b, 0xf5, 0x67, 0x93, 0x76, 0xcb, 0x43, 0x21, + 0xa5, 0xef, 0x01, 0xaf, 0xe6, 0xad, 0x88, 0x16, + 0xfc, 0xc7, 0x63, 0x46, 0x69, 0xc8, 0xc4, 0x38, + 0x92, 0x95, 0xc9, 0x24, 0x1e, 0x45, 0xff, 0xf3, + 0x9f, 0x32, 0x25, 0xf7, 0x74, 0x50, 0x32, 0xda, + 0xee, 0xbe, 0x99, 0xd4, 0xb1, 0x9b, 0xcb, 0x21, + 0x5d, 0x1b, 0xfd, 0xb3, 0x6e, 0xda, 0x2c, 0x24 }, /* mdata */ + 160, /* mdata_len */ + { 0xc9, 0xa0, 0x14, 0x60, 0xaa, 0x2f, 0x85, 0x25, + 0x88, 0x75, 0xa1, 0x76, 0xcc, 0x85, 0x46, 0xf9 } /* mac */ + } + }; + static uint8_t mdata[MDATA_MAX_LEN]; + static uint8_t mac[CBC_MAC_MAC_LEN]; + static int i; + static uint8_t key_size_index = -1, ret; + 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:\n" + "key_area=%d mdata_len=%d\n", + i, 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 = cbc_mac_auth_start(vectors[i].key_area, mdata, vectors[i].mdata_len, + &cbc_mac_test_process); + time2 = RTIMER_NOW(); + time = time2 - time; + total_time = time; + if(ret == CRYPTO_SUCCESS) { + PROCESS_WAIT_EVENT_UNTIL(cbc_mac_auth_check_status()); + time2 = RTIMER_NOW() - time2; + total_time += time2; + } + printf("cbc_mac_auth_start(): %s, %lu us\n", str_res[ret], + (uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND)); + if(ret != CRYPTO_SUCCESS) { + PROCESS_PAUSE(); + continue; + } + printf("cbc_mac_auth_check_status() wait: %lu us\n", + (uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND)); + + time = RTIMER_NOW(); + ret = cbc_mac_auth_get_result(vectors[i].mac, mac); + time = RTIMER_NOW() - time; + total_time += time; + printf("cbc_mac_auth_get_result(): %s, %lu us\n", str_res[ret], + (uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND)); + PROCESS_PAUSE(); + if(ret != CRYPTO_SUCCESS) { + continue; + } + + if(rom_util_memcmp(mac, vectors[i].mac, CBC_MAC_MAC_LEN)) { + puts("MAC does not match expected one"); + } else { + puts("MAC 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(); +} +/*---------------------------------------------------------------------------*/ +/** + * @} + * @} + */ diff --git a/platform/cc2538dk/README.md b/platform/cc2538dk/README.md index 131c8c3e4..dbe69cbe7 100644 --- a/platform/cc2538dk/README.md +++ b/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-ECB/CBC/CTR/CCM-128/192/256, SHA-256) + * Cryptoprocessor (AES-ECB/CBC/CTR/CBC-MAC/CCM-128/192/256, SHA-256) * Public Key Accelerator (ECDH, ECDSA) * Flash-based port of Coffee * SmartRF06 EB and BB peripherals diff --git a/platform/zoul/README.md b/platform/zoul/README.md index 4628a833f..05cef3463 100644 --- a/platform/zoul/README.md +++ b/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-ECB/CBC/CTR/CCM-128/192/256, SHA-256) + * Cryptoprocessor (AES-ECB/CBC/CTR/CBC-MAC/CCM-128/192/256, SHA-256) * Public Key Accelerator (ECDH, ECDSA) * Flash-based port of Coffee * PWM