| /******************************************************************************* |
| * Filename: rom_crypto.c |
| * Revised: 2015-09-09 11:55:59 +0200 (Wed, 09 Sep 2015) |
| * Revision: 44536 |
| * |
| * Description: This is the implementation for the API to the AES, ECC and |
| * SHA256 functions built into ROM on the CC26xx. |
| * |
| * Copyright (c) 2015 - 2016, Texas Instruments Incorporated |
| * 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 ORGANIZATION 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. |
| * |
| *******************************************************************************/ |
| |
| #include <stdint.h> |
| #include <driverlib/rom_crypto.h> |
| |
| ///////////////////////////////////* AES-128 *////////////////////////////////// |
| |
| /* AES - ECB */ |
| typedef void(*aes_ecb_encrypt_t)(uint8_t *, uint16_t, uint8_t *); |
| aes_ecb_encrypt_t aes_ecb_encrypt = (aes_ecb_encrypt_t)(0x10018a99); |
| |
| typedef void(*aes_ecb_decrypt_t)(uint8_t *, uint16_t, uint8_t *); |
| aes_ecb_decrypt_t aes_ecb_decrypt= (aes_ecb_decrypt_t)(0x10018ac5); |
| |
| //***************************************************************************** |
| // AES_ECB_EncryptData |
| //***************************************************************************** |
| void |
| AES_ECB_EncryptData(uint8_t *text, uint16_t textLen, uint8_t *aesKey) |
| { |
| aes_ecb_encrypt(text, textLen, aesKey); |
| } |
| |
| //***************************************************************************** |
| // AES_ECB_DecryptData |
| //***************************************************************************** |
| void |
| AES_ECB_DecryptData(uint8_t *text, uint16_t textLen, uint8_t *aesKey) |
| { |
| aes_ecb_decrypt(text, textLen, aesKey); |
| } |
| |
| /* AES - CCM */ |
| typedef int8_t(*aes_ccm_encrypt_t)(uint8_t, uint8_t, uint8_t *, uint8_t *, |
| uint16_t, uint8_t *, uint16_t, uint8_t *, |
| uint8_t *, uint8_t); |
| aes_ccm_encrypt_t aes_ccm_encrypt = (aes_ccm_encrypt_t)(0x10018a19); |
| |
| typedef int8_t(*aes_ccm_decrypt_t)(uint8_t, uint8_t, uint8_t *, uint8_t *, |
| uint16_t, uint8_t *, uint16_t, uint8_t *, |
| uint8_t *, uint8_t); |
| aes_ccm_decrypt_t aes_ccm_decrypt= (aes_ccm_decrypt_t)(0x10018a35); |
| |
| //***************************************************************************** |
| // AES_CCM_EncryptData |
| //***************************************************************************** |
| int8_t |
| AES_CCM_EncryptData(uint8_t encryptFlag, uint8_t MACLen, uint8_t *nonce, |
| uint8_t *plainText, uint16_t textLen, |
| uint8_t *addDataBuf, uint16_t addBufLen, |
| uint8_t *aesKey, uint8_t *MAC, uint8_t ccmLVal) |
| { |
| return aes_ccm_encrypt(encryptFlag, MACLen, nonce, plainText, textLen, |
| addDataBuf, addBufLen, aesKey, MAC, ccmLVal); |
| } |
| |
| //***************************************************************************** |
| // AES_CCM_DecryptData |
| //***************************************************************************** |
| int8_t |
| AES_CCM_DecryptData(uint8_t decryptFlag, uint8_t MACLen, uint8_t *nonce, |
| uint8_t *cipherText, uint16_t textLen, |
| uint8_t *addDataBuf, uint16_t addBufLen, |
| uint8_t *aesKey, uint8_t *MAC, uint8_t ccmLVal) |
| { |
| return aes_ccm_decrypt(decryptFlag, MACLen, nonce, cipherText, textLen, |
| addDataBuf, addBufLen, aesKey, MAC, ccmLVal); |
| |
| } |
| |
| /* AES - CTR */ |
| typedef uint8_t(*aes_ctr_encrypt_t)(uint8_t *, uint16_t, uint8_t *, uint8_t *, |
| uint8_t *); |
| aes_ctr_encrypt_t aes_ctr_encrypt = (aes_ctr_encrypt_t)(0x100175ed); |
| |
| typedef uint8_t(*aes_ctr_decrypt_t)(uint8_t *, uint16_t, uint8_t *, uint8_t *, |
| uint8_t *); |
| aes_ctr_decrypt_t aes_ctr_decrypt= (aes_ctr_decrypt_t)(0x10017771); |
| |
| //***************************************************************************** |
| // AES_CTR_EncryptData |
| //***************************************************************************** |
| uint8_t |
| AES_CTR_EncryptData(uint8_t *plainText, uint16_t textLen, |
| uint8_t *aesKey, uint8_t *nonce, |
| uint8_t *initVector) |
| { |
| return aes_ctr_encrypt(plainText, textLen, aesKey, nonce, initVector); |
| } |
| |
| //***************************************************************************** |
| // AES_CTR_DecryptData |
| //***************************************************************************** |
| uint8_t |
| AES_CTR_DecryptData(uint8_t *cipherText, uint16_t textLen, |
| uint8_t *aesKey, uint8_t *nonce, |
| uint8_t *initVector) |
| { |
| return aes_ctr_decrypt(cipherText, textLen, aesKey, nonce, initVector); |
| } |
| |
| ////////////////////////////////////* ECC *//////////////////////////////////// |
| #ifdef ECC_PRIME_NIST256_CURVE |
| //#define TEST_NIST256 |
| //#define PARAM_P NIST256_p; |
| #define PARAM_P 0x10018b0c; |
| |
| //#define PARAM_R NIST256_r; |
| #define PARAM_R 0x10018b30; |
| |
| //#define PARAM_A NIST256_a; |
| #define PARAM_A 0x10018b54; |
| |
| //#define PARAM_B NIST256_b; |
| #define PARAM_B 0x10018b78; |
| |
| //#define PARAM_GX NIST256_Gx; |
| #define PARAM_GX 0x10018b9c; |
| |
| //#define PARAM_GY NIST256_Gy; |
| #define PARAM_GY 0x10018bc0; |
| |
| #endif |
| |
| |
| //***************************************************************************** |
| // ECC_initialize |
| //***************************************************************************** |
| void |
| ECC_initialize(uint32_t *pWorkzone) |
| { |
| // Initialize curve parameters |
| //data_p = (uint32_t *)PARAM_P; |
| *((uint32_t **)0x20004f48) = (uint32_t *)PARAM_P; |
| |
| //data_r = (uint32_t *)PARAM_R; |
| *((uint32_t **)0x20004f4c) = (uint32_t *)PARAM_R; |
| |
| //data_a = (uint32_t *)PARAM_A; |
| *((uint32_t **)0x20004f50) = (uint32_t *)PARAM_A; |
| |
| //data_b = (uint32_t *)PARAM_B; |
| *((uint32_t **)0x20004fa8) = (uint32_t *)PARAM_B; |
| |
| //data_Gx = (uint32_t *)PARAM_GX; |
| *((uint32_t **)0x20004fa0) = (uint32_t *)PARAM_GX; |
| |
| //data_Gy = (uint32_t *)PARAM_GY; |
| *((uint32_t **)0x20004fa4) = (uint32_t *)PARAM_GY; |
| |
| // Initialize window size |
| //win = (uint8_t) ECC_WINDOW_SIZE; |
| *((uint8_t *)0x20004f40) = (uint8_t) ECC_WINDOW_SIZE; |
| |
| // Initialize work zone |
| //workzone = (uint32_t *) pWorkzone; |
| *((uint32_t **)0x20004f44) = (uint32_t *) pWorkzone; |
| } |
| |
| typedef uint8_t(*ecc_keygen_t)(uint32_t *, uint32_t *,uint32_t *, uint32_t *); |
| ecc_keygen_t ecc_generatekey = (ecc_keygen_t)(0x10017dbd); |
| |
| typedef uint8_t(*ecdsa_sign_t)(uint32_t *, uint32_t *,uint32_t *, uint32_t *, uint32_t *); |
| ecdsa_sign_t ecc_ecdsa_sign = (ecdsa_sign_t)(0x10017969); |
| |
| typedef uint8_t(*ecdsa_verify_t)(uint32_t *, uint32_t *,uint32_t *, uint32_t *, uint32_t *); |
| ecdsa_verify_t ecc_ecdsa_verify = (ecdsa_verify_t)(0x10017b01); |
| |
| typedef uint8_t(*ecdh_computeSharedSecret_t)(uint32_t *, uint32_t *,uint32_t *, uint32_t *, uint32_t *); |
| ecdh_computeSharedSecret_t ecdh_computeSharedSecret = (ecdh_computeSharedSecret_t)(0x10017ded); |
| |
| //***************************************************************************** |
| // ECC_generateKey |
| //***************************************************************************** |
| uint8_t |
| ECC_generateKey(uint32_t *randString, uint32_t *privateKey, |
| uint32_t *publicKey_x, uint32_t *publicKey_y) |
| { |
| return (uint8_t)ecc_generatekey((uint32_t*)randString, (uint32_t*)privateKey, |
| (uint32_t*)publicKey_x, (uint32_t*)publicKey_y); |
| |
| } |
| |
| //***************************************************************************** |
| // ECC_ECDSA_sign |
| //***************************************************************************** |
| uint8_t |
| ECC_ECDSA_sign(uint32_t *secretKey, uint32_t *text, uint32_t *randString, |
| uint32_t *sign1, uint32_t *sign2) |
| { |
| return (uint8_t)ecc_ecdsa_sign((uint32_t*)secretKey, (uint32_t*)text, (uint32_t*)randString, |
| (uint32_t*)sign1, (uint32_t*)sign2); |
| } |
| |
| //***************************************************************************** |
| // ECC_ECDSA_verify |
| //***************************************************************************** |
| uint8_t |
| ECC_ECDSA_verify(uint32_t *publicKey_x, uint32_t *publicKey_y, |
| uint32_t *text, uint32_t *sign1, uint32_t *sign2) |
| { |
| return (uint8_t)ecc_ecdsa_verify((uint32_t*)publicKey_x, (uint32_t*)publicKey_y, (uint32_t*)text, |
| (uint32_t*)sign1, (uint32_t*)sign2); |
| } |
| |
| //***************************************************************************** |
| // ECC_ECDH_computeSharedSecret |
| //***************************************************************************** |
| uint8_t |
| ECC_ECDH_computeSharedSecret(uint32_t *privateKey, uint32_t *publicKey_x, |
| uint32_t *publicKey_y, uint32_t *sharedSecret_x, |
| uint32_t *sharedSecret_y) |
| { |
| return (uint8_t)ecdh_computeSharedSecret((uint32_t*)privateKey, (uint32_t*)publicKey_x, |
| (uint32_t*)publicKey_y, (uint32_t*)sharedSecret_x, |
| (uint32_t*)sharedSecret_y); |
| } |
| |
| |
| //////////////////////////////////* SHA-256 */////////////////////////////////// |
| |
| typedef uint8_t(*sha256_full_t)(SHA256_memory_t *, uint8_t *, uint8_t *, uint32_t); |
| sha256_full_t sha256_runfullalg = (sha256_full_t)(0x10018129); |
| |
| typedef uint8_t(*sha256_init_t)(SHA256_memory_t *); |
| sha256_init_t sha256_initialize = (sha256_init_t)(0x10017ffd); |
| |
| typedef uint8_t(*sha256_process_t)(SHA256_memory_t *, uint8_t *, uint32_t); |
| sha256_process_t sha256_execute = (sha256_process_t)(0x10018019); |
| |
| typedef uint8_t(*sha256_final_t)(SHA256_memory_t *, uint8_t *); |
| sha256_final_t sha256_output = (sha256_final_t)(0x10018089); |
| |
| //***************************************************************************** |
| // SHA256_runFullAlgorithm |
| //***************************************************************************** |
| uint8_t |
| SHA256_runFullAlgorithm(SHA256_memory_t *memory, uint8_t *pBufIn, |
| uint32_t bufLen, uint8_t *pBufOut) |
| { |
| return (uint8_t)sha256_runfullalg(memory, pBufOut, pBufIn, bufLen); |
| } |
| |
| //***************************************************************************** |
| // SHA256_initialize |
| //***************************************************************************** |
| uint8_t |
| SHA256_initialize(SHA256_memory_t *memory) |
| { |
| return (uint8_t)sha256_initialize(memory); |
| } |
| |
| //***************************************************************************** |
| // SHA256_execute |
| //***************************************************************************** |
| uint8_t |
| SHA256_execute(SHA256_memory_t *memory, uint8_t *pBufIn, uint32_t bufLen) |
| { |
| return (uint8_t)sha256_execute(memory,pBufIn, bufLen); |
| } |
| |
| //***************************************************************************** |
| // SHA256_output |
| //***************************************************************************** |
| uint8_t |
| SHA256_output(SHA256_memory_t *memory, uint8_t *pBufOut) |
| { |
| return (uint8_t)sha256_output(memory, pBufOut); |
| } |