diff --git a/testing/crypto/CMakeLists.txt b/testing/crypto/CMakeLists.txt index 06c4f4d7f..36f07b63a 100644 --- a/testing/crypto/CMakeLists.txt +++ b/testing/crypto/CMakeLists.txt @@ -145,4 +145,18 @@ if(CONFIG_TESTING_CRYPTO) ecdsa.c) endif() + if(CONFIG_TESTING_CRYPTO_ECDH) + nuttx_add_application( + NAME + dhm + PRIORITY + ${CONFIG_TESTING_CRYPTO_PRIORITY} + STACKSIZE + ${CONFIG_TESTING_CRYPTO_STACKSIZE} + MODULE + ${CONFIG_TESTING_CRYPTO} + SRCS + dhm.c) + endif() + endif() diff --git a/testing/crypto/Kconfig b/testing/crypto/Kconfig index 4e322994a..9bf14ed1e 100644 --- a/testing/crypto/Kconfig +++ b/testing/crypto/Kconfig @@ -42,6 +42,10 @@ config TESTING_CRYPTO_ECDSA bool "ecdsa crypto test" default n +config TESTING_CRYPTO_ECDH + bool "ecdh crypto test" + default n + config TESTING_CRYPTO_PRIORITY int "crypto test task priority" default 100 diff --git a/testing/crypto/Makefile b/testing/crypto/Makefile index 3169efb5f..950428e83 100644 --- a/testing/crypto/Makefile +++ b/testing/crypto/Makefile @@ -66,6 +66,11 @@ PROGNAME += ecdsa MAINSRC += ecdsa.c endif +ifeq ($(CONFIG_TESTING_CRYPTO_ECDH),y) +PROGNAME += dhm +MAINSRC += dhm.c +endif + PRIORITY = $(CONFIG_TESTING_CRYPTO_PRIORITY) STACKSIZE = $(CONFIG_TESTING_CRYPTO_STACKSIZE) MODULE = $(CONFIG_TESTING_CRYPTO) diff --git a/testing/crypto/dhm.c b/testing/crypto/dhm.c new file mode 100644 index 000000000..efb483f66 --- /dev/null +++ b/testing/crypto/dhm.c @@ -0,0 +1,310 @@ +/**************************************************************************** + * apps/testing/crypto/dhm.c + * Copyright (C) 2023 Xiaomi Corporation + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include +#include +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* RFC 5114 section 2.1: + * 1024-bit MODP Group with 160-bit Prime Order Subgroup + */ + +#define DHM_RFC5114_MODP_1024_P_BIN { \ + 0xB1, 0x0B, 0x8F, 0x96, 0xA0, 0x80, 0xE0, 0x1D, \ + 0xDE, 0x92, 0xDE, 0x5E, 0xAE, 0x5D, 0x54, 0xEC, \ + 0x52, 0xC9, 0x9F, 0xBC, 0xFB, 0x06, 0xA3, 0xC6, \ + 0x9A, 0x6A, 0x9D, 0xCA, 0x52, 0xD2, 0x3B, 0x61, \ + 0x60, 0x73, 0xE2, 0x86, 0x75, 0xA2, 0x3D, 0x18, \ + 0x98, 0x38, 0xEF, 0x1E, 0x2E, 0xE6, 0x52, 0xC0, \ + 0x13, 0xEC, 0xB4, 0xAE, 0xA9, 0x06, 0x11, 0x23, \ + 0x24, 0x97, 0x5C, 0x3C, 0xD4, 0x9B, 0x83, 0xBF, \ + 0xAC, 0xCB, 0xDD, 0x7D, 0x90, 0xC4, 0xBD, 0x70, \ + 0x98, 0x48, 0x8E, 0x9C, 0x21, 0x9A, 0x73, 0x72, \ + 0x4E, 0xFF, 0xD6, 0xFA, 0xE5, 0x64, 0x47, 0x38, \ + 0xFA, 0xA3, 0x1A, 0x4F, 0xF5, 0x5B, 0xCC, 0xC0, \ + 0xA1, 0x51, 0xAF, 0x5F, 0x0D, 0xC8, 0xB4, 0xBD, \ + 0x45, 0xBF, 0x37, 0xDF, 0x36, 0x5C, 0x1A, 0x65, \ + 0xE6, 0x8C, 0xFD, 0xA7, 0x6D, 0x4D, 0xA7, 0x08, \ + 0xDF, 0x1F, 0xB2, 0xBC, 0x2E, 0x4A, 0x43, 0x71 } + +#define DHM_RFC5114_MODP_1024_G_BIN { \ + 0xA4, 0xD1, 0xCB, 0xD5, 0xC3, 0xFD, 0x34, 0x12, \ + 0x67, 0x65, 0xA4, 0x42, 0xEF, 0xB9, 0x99, 0x05, \ + 0xF8, 0x10, 0x4D, 0xD2, 0x58, 0xAC, 0x50, 0x7F, \ + 0xD6, 0x40, 0x6C, 0xFF, 0x14, 0x26, 0x6D, 0x31, \ + 0x26, 0x6F, 0xEA, 0x1E, 0x5C, 0x41, 0x56, 0x4B, \ + 0x77, 0x7E, 0x69, 0x0F, 0x55, 0x04, 0xF2, 0x13, \ + 0x16, 0x02, 0x17, 0xB4, 0xB0, 0x1B, 0x88, 0x6A, \ + 0x5E, 0x91, 0x54, 0x7F, 0x9E, 0x27, 0x49, 0xF4, \ + 0xD7, 0xFB, 0xD7, 0xD3, 0xB9, 0xA9, 0x2E, 0xE1, \ + 0x90, 0x9D, 0x0D, 0x22, 0x63, 0xF8, 0x0A, 0x76, \ + 0xA6, 0xA2, 0x4C, 0x08, 0x7A, 0x09, 0x1F, 0x53, \ + 0x1D, 0xBF, 0x0A, 0x01, 0x69, 0xB6, 0xA2, 0x8A, \ + 0xD6, 0x62, 0xA4, 0xD1, 0x8E, 0x73, 0xAF, 0xA3, \ + 0x2D, 0x77, 0x9D, 0x59, 0x18, 0xD0, 0x8B, 0xC8, \ + 0x85, 0x8F, 0x4D, 0xCE, 0xF9, 0x7C, 0x2A, 0x24, \ + 0x85, 0x5E, 0x6E, 0xEB, 0x22, 0xB3, 0xB2, 0xE5 } + +#define DHM_SIZE 128 + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +typedef struct cryptodev_context +{ + int fd; + int cryptodev_fd; +} +cryptodev_context; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +static int match(FAR unsigned char *a, FAR unsigned char *b, size_t len) +{ + int i; + + if (memcmp(a, b, len) == 0) + { + return 0; + } + + perror("dhm mismatch"); + + for (i = 0; i < len; i++) + { + printf("%02x", a[i]); + } + + printf("\n"); + for (i = 0; i < len; i++) + { + printf("%02x", b[i]); + } + + printf("\n"); + + return 1; +} + +static void cryptodev_free(FAR cryptodev_context *ctx) +{ + if (ctx->cryptodev_fd != 0) + { + close(ctx->cryptodev_fd); + ctx->cryptodev_fd = 0; + } + + if (ctx->fd != 0) + { + close(ctx->fd); + ctx->fd = 0; + } +} + +static int cryptodev_init(FAR cryptodev_context *ctx) +{ + memset(ctx, 0, sizeof(cryptodev_context)); + if ((ctx->fd = open("/dev/crypto", O_RDWR, 0)) < 0) + { + perror("cryptodev_init open /dev/crypto failed"); + cryptodev_free(ctx); + return 1; + } + + if (ioctl(ctx->fd, CRIOGET, &ctx->cryptodev_fd) == -1) + { + perror("cryptodev_init CRIOGET failed"); + cryptodev_free(ctx); + return 1; + } + + return 0; +} + +static int dh_make_public(FAR cryptodev_context *ctx, + FAR const unsigned char *p, size_t p_size, + FAR const unsigned char *g, size_t g_size, + FAR unsigned char *x, size_t x_size, + FAR unsigned char *gx, size_t gx_size) +{ + struct crypt_kop cryptk; + + memset(&cryptk, 0, sizeof(struct crypt_kop)); + cryptk.crk_op = CRK_DH_MAKE_PUBLIC; + cryptk.crk_iparams = 2; + cryptk.crk_oparams = 2; + + /* inputs: g p + * outputs: x gx + */ + + cryptk.crk_param[0].crp_p = (caddr_t) g; + cryptk.crk_param[0].crp_nbits = g_size * 8; + cryptk.crk_param[1].crp_p = (caddr_t) p; + cryptk.crk_param[1].crp_nbits = p_size * 8; + cryptk.crk_param[2].crp_p = (caddr_t) x; + cryptk.crk_param[2].crp_nbits = x_size * 8; + cryptk.crk_param[3].crp_p = (caddr_t) gx; + cryptk.crk_param[3].crp_nbits = gx_size * 8; + if (ioctl(ctx->cryptodev_fd, CIOCKEY, &cryptk) == -1) + { + perror("dh_make_public failed"); + return 1; + } + + return 0; +} + +static int dh_compute_key(FAR cryptodev_context *ctx, + FAR const unsigned char *gy, size_t gy_size, + FAR const unsigned char *x, size_t x_size, + FAR const unsigned char *p, size_t p_size, + FAR unsigned char *k, size_t k_size) +{ + struct crypt_kop cryptk; + + memset(&cryptk, 0, sizeof(struct crypt_kop)); + cryptk.crk_op = CRK_DH_COMPUTE_KEY; + cryptk.crk_iparams = 3; + cryptk.crk_oparams = 1; + + /* inputs: pub_key priv_key p */ + + cryptk.crk_param[0].crp_p = (caddr_t) gy; + cryptk.crk_param[0].crp_nbits = gy_size * 8; + cryptk.crk_param[1].crp_p = (caddr_t) x; + cryptk.crk_param[1].crp_nbits = x_size * 8; + cryptk.crk_param[2].crp_p = (caddr_t) p; + cryptk.crk_param[2].crp_nbits = p_size * 8; + cryptk.crk_param[3].crp_p = (caddr_t) k; + cryptk.crk_param[3].crp_nbits = k_size * 8; + if (ioctl(ctx->cryptodev_fd, CIOCKEY, &cryptk) == -1) + { + perror("dh_compute_key failed"); + return 1; + } + + return 0; +} + +static int test_dh_compute_key(void) +{ + int ret; + cryptodev_context ctx; + static const unsigned char dhm_p_1024[] = + DHM_RFC5114_MODP_1024_P_BIN; + static const unsigned char dhm_g_1024[] = + DHM_RFC5114_MODP_1024_G_BIN; + unsigned char x1[DHM_SIZE]; + unsigned char gx1[DHM_SIZE]; + unsigned char k1[DHM_SIZE]; + unsigned char x2[DHM_SIZE]; + unsigned char gx2[DHM_SIZE]; + unsigned char k2[DHM_SIZE]; + + ret = cryptodev_init(&ctx); + if (ret != 0) + { + goto free; + } + + /* X-private key GX-pulic key K-share key */ + + memset(x1, 0, DHM_SIZE); + memset(gx1, 0, DHM_SIZE); + memset(k1, 0, DHM_SIZE); + memset(x2, 0, DHM_SIZE); + memset(gx2, 0, DHM_SIZE); + memset(k2, 0, DHM_SIZE); + + ret = dh_make_public(&ctx, dhm_p_1024, DHM_SIZE, dhm_g_1024, + DHM_SIZE, x1, DHM_SIZE, gx1, DHM_SIZE); + if (ret != 0) + { + printf("DH make Alice's public key failed\n"); + goto free; + } + + ret = dh_make_public(&ctx, dhm_p_1024, DHM_SIZE, dhm_g_1024, + DHM_SIZE, x2, DHM_SIZE, gx2, DHM_SIZE); + if (ret != 0) + { + printf("DH make Bob's public failed\n"); + goto free; + } + + ret = dh_compute_key(&ctx, gx2, DHM_SIZE, x1, DHM_SIZE, + dhm_p_1024, DHM_SIZE, k1, DHM_SIZE); + if (ret != 0) + { + printf("DH compute Alice's share key failed\n"); + goto free; + } + + ret = dh_compute_key(&ctx, gx1, DHM_SIZE, x2, DHM_SIZE, + dhm_p_1024, DHM_SIZE, k2, DHM_SIZE); + if (ret != 0) + { + printf("DH compute Bob's share key failed\n"); + goto free; + } + + ret = match(k1, k2, DHM_SIZE); + if (ret != 0) + { + printf("mismatch share key\n"); + } + +free: + cryptodev_free(&ctx); + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int main(void) +{ + if (test_dh_compute_key() != 0) + { + printf("test dh compute key failed\n"); + } + else + { + printf("test dh compute key ok\n"); + } + + return 0; +}