18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 2a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt * Wrapper functions for OpenSSL libcrypto 3a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt * Copyright (c) 2004-2013, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/opensslv.h> 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/err.h> 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/des.h> 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/aes.h> 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/bn.h> 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/evp.h> 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include <openssl/dh.h> 1704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include <openssl/hmac.h> 1861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#include <openssl/rand.h> 1961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_OPENSSL_CMAC 2061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#include <openssl/cmac.h> 2161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_OPENSSL_CMAC */ 22a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#ifdef CONFIG_ECC 23a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#include <openssl/ec.h> 24a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#endif /* CONFIG_ECC */ 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpabuf.h" 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "dh_group5.h" 29fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt#include "sha1.h" 30fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt#include "sha256.h" 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto.h" 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00907000 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_key_schedule des_key_schedule 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_cblock des_cblock 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_set_key(key, schedule) des_set_key((key), *(schedule)) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_ecb_encrypt(input, output, ks, enc) \ 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt des_ecb_encrypt((input), (output), *(ks), (enc)) 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.7 */ 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic BIGNUM * get_group5_prime(void) 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 439ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 || defined(OPENSSL_IS_BORINGSSL) 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt static const unsigned char RFC3526_PRIME_1536[] = { 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2, 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1, 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6, 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD, 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D, 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45, 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9, 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED, 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11, 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D, 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36, 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F, 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56, 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D, 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08, 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xCA,0x23,0x73,0x27,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt }; 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return BN_bin2bn(RFC3526_PRIME_1536, sizeof(RFC3526_PRIME_1536), NULL); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* openssl < 0.9.8 */ 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return get_rfc3526_prime_1536(NULL); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.8 */ 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_SHA256 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_FIPS 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define NO_SHA256_WRAPPER 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.8 */ 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OPENSSL_NO_SHA256 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define NO_SHA256_WRAPPER 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic int openssl_digest_vector(const EVP_MD *type, size_t num_elem, 8261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_MD_CTX ctx; 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int mac_len; 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_MD_CTX_init(&ctx); 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestInit_ex(&ctx, type, NULL)) { 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestInit_ex failed: %s", 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < num_elem; i++) { 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestUpdate(&ctx, addr[i], len[i])) { 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestUpdate " 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "failed: %s", 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestFinal(&ctx, mac, &mac_len)) { 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestFinal failed: %s", 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_md4(), num_elem, addr, len, mac); 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid des_encrypt(const u8 *clear, const u8 *key, u8 *cypher) 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pkey[8], next, tmp; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int i; 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_key_schedule ks; 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Add parity bits to the key */ 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next = 0; 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < 7; i++) { 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tmp = key[i]; 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pkey[i] = (tmp >> i) | next | 1; 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next = tmp << (7 - i); 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pkey[i] = next | 1; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1339ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt DES_set_key((DES_cblock *) &pkey, &ks); 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_ecb_encrypt((DES_cblock *) clear, (DES_cblock *) cypher, &ks, 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_ENCRYPT); 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint rc4_skip(const u8 *key, size_t keylen, size_t skip, 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *data, size_t data_len) 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OPENSSL_NO_RC4 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* OPENSSL_NO_RC4 */ 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX ctx; 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res = -1; 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned char skip_buf[16]; 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx); 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_CIPHER_CTX_set_padding(&ctx, 0) || 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CipherInit_ex(&ctx, EVP_rc4(), NULL, NULL, NULL, 1) || 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx, keylen) || 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CipherInit_ex(&ctx, NULL, NULL, key, NULL, 1)) 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (skip >= sizeof(skip_buf)) { 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len = skip; 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len > sizeof(skip_buf)) 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = sizeof(skip_buf); 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_CipherUpdate(&ctx, skip_buf, &outl, skip_buf, len)) 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt skip -= len; 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (EVP_CipherUpdate(&ctx, data, &outl, data, data_len)) 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = 0; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx); 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return res; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC4 */ 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 17861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_md5(), num_elem, addr, len, mac); 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 18461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_sha1(), num_elem, addr, len, mac); 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef NO_SHA256_WRAPPER 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint sha256_vector(size_t num_elem, const u8 *addr[], const size_t *len, 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *mac) 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 19261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_sha256(), num_elem, addr, len, mac); 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* NO_SHA256_WRAPPER */ 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic const EVP_CIPHER * aes_get_evp_cipher(size_t keylen) 19861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 19961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt switch (keylen) { 20061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 16: 20161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_128_ecb(); 2029ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#ifndef OPENSSL_IS_BORINGSSL 20361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 24: 20461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_192_ecb(); 2059ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#endif /* OPENSSL_IS_BORINGSSL */ 20661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 32: 20761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_256_ecb(); 20861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 20961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 21061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 21161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 21261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 21361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * aes_encrypt_init(const u8 *key, size_t len) 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 21661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *ctx; 21761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const EVP_CIPHER *type; 21861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 21961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt type = aes_get_evp_cipher(len); 22061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (type == NULL) 22161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 22261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 22361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = os_malloc(sizeof(*ctx)); 22461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 22661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_init(ctx); 22761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptInit_ex(ctx, type, NULL, key, NULL) != 1) { 22861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(ctx); 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_set_padding(ctx, 0); 23261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ctx; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_encrypt(void *ctx, const u8 *plain, u8 *crypt) 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 23961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int clen = 16; 24061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptUpdate(c, crypt, &clen, plain, 16) != 1) { 24161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_EncryptUpdate failed: %s", 24261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 24361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_encrypt_deinit(void *ctx) 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 25061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 buf[16]; 25161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int len = sizeof(buf); 25261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptFinal_ex(c, buf, &len) != 1) { 25361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_EncryptFinal_ex failed: " 25461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "%s", ERR_error_string(ERR_get_error(), NULL)); 25561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 25661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (len != 0) { 25761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: Unexpected padding length %d " 25861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "in AES encrypt", len); 25961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 26061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_cleanup(c); 26161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(c); 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * aes_decrypt_init(const u8 *key, size_t len) 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *ctx; 26861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const EVP_CIPHER *type; 26961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 27061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt type = aes_get_evp_cipher(len); 27161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (type == NULL) 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 27361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 27461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = os_malloc(sizeof(*ctx)); 27561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 27661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 27761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_init(ctx); 27861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptInit_ex(ctx, type, NULL, key, NULL) != 1) { 27961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(ctx); 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 28261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_set_padding(ctx, 0); 28361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ctx; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_decrypt(void *ctx, const u8 *crypt, u8 *plain) 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 29061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int plen = 16; 29161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptUpdate(c, plain, &plen, crypt, 16) != 1) { 29261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DecryptUpdate failed: %s", 29361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 29461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_decrypt_deinit(void *ctx) 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 30061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 30161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 buf[16]; 30261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int len = sizeof(buf); 30361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptFinal_ex(c, buf, &len) != 1) { 30461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DecryptFinal_ex failed: " 30561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "%s", ERR_error_string(ERR_get_error(), NULL)); 30661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 30761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (len != 0) { 30861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: Unexpected padding length %d " 30961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "in AES decrypt", len); 31061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 31161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_cleanup(c); 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_mod_exp(const u8 *base, size_t base_len, 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *power, size_t power_len, 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *modulus, size_t modulus_len, 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *result, size_t *result_len) 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BIGNUM *bn_base, *bn_exp, *bn_modulus, *bn_result; 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret = -1; 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_CTX *ctx; 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ctx = BN_CTX_new(); 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_base = BN_bin2bn(base, base_len, NULL); 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_exp = BN_bin2bn(power, power_len, NULL); 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_modulus = BN_bin2bn(modulus, modulus_len, NULL); 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_result = BN_new(); 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bn_base == NULL || bn_exp == NULL || bn_modulus == NULL || 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_result == NULL) 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (BN_mod_exp(bn_result, bn_base, bn_exp, bn_modulus, ctx) != 1) 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *result_len = BN_bn2bin(bn_result, result); 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = 0; 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 3457f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(bn_base); 3467f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(bn_exp); 3477f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(bn_modulus); 3487f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(bn_result); 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_CTX_free(ctx); 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct crypto_cipher { 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX enc; 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX dec; 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg, 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *iv, const u8 *key, 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len) 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct crypto_cipher *ctx; 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const EVP_CIPHER *cipher; 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ctx = os_zalloc(sizeof(*ctx)); 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (alg) { 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_RC4 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_RC4: 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_rc4(); 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC4 */ 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_AES 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_AES: 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (key_len) { 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 16: 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_128_cbc(); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3839ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#ifndef OPENSSL_IS_BORINGSSL 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 24: 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_192_cbc(); 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3879ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#endif /* OPENSSL_IS_BORINGSSL */ 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 32: 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_256_cbc(); 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_AES */ 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_DES 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_3DES: 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_des_ede3_cbc(); 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_DES: 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_des_cbc(); 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_DES */ 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_RC2 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_RC2: 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_rc2_ecb(); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC2 */ 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx->enc); 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_set_padding(&ctx->enc, 0); 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_EncryptInit_ex(&ctx->enc, cipher, NULL, NULL, NULL) || 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx->enc, key_len) || 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_EncryptInit_ex(&ctx->enc, NULL, NULL, key, iv)) { 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx->dec); 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_set_padding(&ctx->dec, 0); 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DecryptInit_ex(&ctx->dec, cipher, NULL, NULL, NULL) || 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx->dec, key_len) || 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_DecryptInit_ex(&ctx->dec, NULL, NULL, key, iv)) { 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->dec); 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ctx; 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_cipher_encrypt(struct crypto_cipher *ctx, const u8 *plain, 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *crypt, size_t len) 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_EncryptUpdate(&ctx->enc, crypt, &outl, plain, len)) 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_cipher_decrypt(struct crypto_cipher *ctx, const u8 *crypt, 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *plain, size_t len) 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt outl = len; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DecryptUpdate(&ctx->dec, plain, &outl, crypt, len)) 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid crypto_cipher_deinit(struct crypto_cipher *ctx) 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->dec); 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * dh5_init(struct wpabuf **priv, struct wpabuf **publ) 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh; 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *pubkey = NULL, *privkey = NULL; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t publen, privlen; 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *priv = NULL; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *publ = NULL; 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh = DH_new(); 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh == NULL) 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh->g = BN_new(); 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh->g == NULL || BN_set_word(dh->g, 2) != 1) 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh->p = get_group5_prime(); 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh->p == NULL) 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (DH_generate_key(dh) != 1) 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt publen = BN_num_bytes(dh->pub_key); 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pubkey = wpabuf_alloc(publen); 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pubkey == NULL) 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt privlen = BN_num_bytes(dh->priv_key); 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt privkey = wpabuf_alloc(privlen); 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (privkey == NULL) 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_bn2bin(dh->pub_key, wpabuf_put(pubkey, publen)); 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_bn2bin(dh->priv_key, wpabuf_put(privkey, privlen)); 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *priv = privkey; 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *publ = pubkey; 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return dh; 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterr: 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(pubkey); 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(privkey); 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH_free(dh); 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 51704949598a23f501be6eec21697465fd46a28840aDmitry Shmidtvoid * dh5_init_fixed(const struct wpabuf *priv, const struct wpabuf *publ) 51804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 51904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt DH *dh; 52004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 52104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh = DH_new(); 52204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh == NULL) 52304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 52404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 52504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->g = BN_new(); 52604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->g == NULL || BN_set_word(dh->g, 2) != 1) 52704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 52804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 52904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->p = get_group5_prime(); 53004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->p == NULL) 53104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 53204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 53304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->priv_key = BN_bin2bn(wpabuf_head(priv), wpabuf_len(priv), NULL); 53404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->priv_key == NULL) 53504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 53604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 53704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->pub_key = BN_bin2bn(wpabuf_head(publ), wpabuf_len(publ), NULL); 53804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->pub_key == NULL) 53904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 54004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 54104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (DH_generate_key(dh) != 1) 54204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 54304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 54404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return dh; 54504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 54604949598a23f501be6eec21697465fd46a28840aDmitry Shmidterr: 54704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt DH_free(dh); 54804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 54904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 55004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 55104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpabuf * dh5_derive_shared(void *ctx, const struct wpabuf *peer_public, 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *own_private) 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BIGNUM *pub_key; 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *res = NULL; 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rlen; 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh = ctx; 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int keylen; 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pub_key = BN_bin2bn(wpabuf_head(peer_public), wpabuf_len(peer_public), 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt NULL); 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pub_key == NULL) 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = DH_size(dh); 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpabuf_alloc(rlen); 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res == NULL) 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt keylen = DH_compute_key(wpabuf_mhead(res), pub_key, dh); 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (keylen < 0) 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put(res, keylen); 5787f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(pub_key); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return res; 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterr: 5837f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(pub_key); 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(res); 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid dh5_free(void *ctx) 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh; 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh = ctx; 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH_free(dh); 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 59704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59904949598a23f501be6eec21697465fd46a28840aDmitry Shmidtstruct crypto_hash { 60004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_CTX ctx; 60104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt}; 60204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 60304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 60404949598a23f501be6eec21697465fd46a28840aDmitry Shmidtstruct crypto_hash * crypto_hash_init(enum crypto_hash_alg alg, const u8 *key, 60504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt size_t key_len) 60604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 60704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt struct crypto_hash *ctx; 60804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt const EVP_MD *md; 60904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 61004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt switch (alg) { 61104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_MD5 61204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_MD5: 61304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_md5(); 61404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 61504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_MD5 */ 61604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_SHA 61704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_SHA1: 61804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_sha1(); 61904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 62004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_SHA */ 62104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_SHA256 62204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifdef CONFIG_SHA256 62304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_SHA256: 62404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_sha256(); 62504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 62604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* CONFIG_SHA256 */ 62704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_SHA256 */ 62804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt default: 62904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 63004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 63104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 63204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt ctx = os_zalloc(sizeof(*ctx)); 63304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 63404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 63561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx->ctx); 63604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 63704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 63804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Init_ex(&ctx->ctx, key, key_len, md, NULL); 63904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#else /* openssl < 0.9.9 */ 64004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (HMAC_Init_ex(&ctx->ctx, key, key_len, md, NULL) != 1) { 64104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 64204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 64304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 64404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* openssl < 0.9.9 */ 64504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 64604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return ctx; 64704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 64804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 64904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65004949598a23f501be6eec21697465fd46a28840aDmitry Shmidtvoid crypto_hash_update(struct crypto_hash *ctx, const u8 *data, size_t len) 65104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 65204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 65304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return; 65404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Update(&ctx->ctx, data, len); 65504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 65604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65804949598a23f501be6eec21697465fd46a28840aDmitry Shmidtint crypto_hash_finish(struct crypto_hash *ctx, u8 *mac, size_t *len) 65904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 66004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt unsigned int mdlen; 66104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt int res; 66204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 66304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 66404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return -2; 66504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 66604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (mac == NULL || len == NULL) { 66704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 66804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return 0; 66904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 67004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 67104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt mdlen = *len; 67204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 67304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Final(&ctx->ctx, mac, &mdlen); 67404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt res = 1; 67504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#else /* openssl < 0.9.9 */ 67604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt res = HMAC_Final(&ctx->ctx, mac, &mdlen); 67704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* openssl < 0.9.9 */ 67804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_CTX_cleanup(&ctx->ctx); 67904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 68004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 68104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (res == 1) { 68204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *len = mdlen; 68304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return 0; 68404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 68504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 68604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return -1; 68704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 68861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 68961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 69061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint pbkdf2_sha1(const char *passphrase, const u8 *ssid, size_t ssid_len, 69161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int iterations, u8 *buf, size_t buflen) 69261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 69361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 69461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (PKCS5_PBKDF2_HMAC_SHA1(passphrase, os_strlen(passphrase), 69561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt (unsigned char *) ssid, 69661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ssid_len, 4096, buflen, buf) != 1) 69761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 69861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.8 */ 69961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (PKCS5_PBKDF2_HMAC_SHA1(passphrase, os_strlen(passphrase), ssid, 70061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ssid_len, 4096, buflen, buf) != 1) 70161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 70261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.8 */ 70361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return 0; 70461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 70561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 70661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 70761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha1_vector(const u8 *key, size_t key_len, size_t num_elem, 70861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 70961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 71061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX ctx; 71161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 71261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt unsigned int mdlen; 71361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int res; 71461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 71561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx); 71661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 71761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Init_ex(&ctx, key, key_len, EVP_sha1(), NULL); 71861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 71961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (HMAC_Init_ex(&ctx, key, key_len, EVP_sha1(), NULL) != 1) 72061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 72161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 72261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 72361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) 72461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Update(&ctx, addr[i], len[i]); 72561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 72661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt mdlen = 20; 72761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 72861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Final(&ctx, mac, &mdlen); 72961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = 1; 73061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 73161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = HMAC_Final(&ctx, mac, &mdlen); 73261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 73361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_cleanup(&ctx); 73461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return res == 1 ? 0 : -1; 73661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 73761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha1(const u8 *key, size_t key_len, const u8 *data, size_t data_len, 74061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 *mac) 74161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 74261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return hmac_sha1_vector(key, key_len, 1, &data, &data_len, mac); 74361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 74461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 74561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 74661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_SHA256 74761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 74861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem, 74961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 75061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 75161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX ctx; 75261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 75361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt unsigned int mdlen; 75461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int res; 75561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 75661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx); 75761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 75861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Init_ex(&ctx, key, key_len, EVP_sha256(), NULL); 75961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 76061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (HMAC_Init_ex(&ctx, key, key_len, EVP_sha256(), NULL) != 1) 76161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 76261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 76361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 76461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) 76561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Update(&ctx, addr[i], len[i]); 76661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 76761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt mdlen = 32; 76861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 76961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Final(&ctx, mac, &mdlen); 77061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = 1; 77161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 77261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = HMAC_Final(&ctx, mac, &mdlen); 77361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 77461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_cleanup(&ctx); 77561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 77661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return res == 1 ? 0 : -1; 77761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 77861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 77961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha256(const u8 *key, size_t key_len, const u8 *data, 78161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t data_len, u8 *mac) 78261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 78361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return hmac_sha256_vector(key, key_len, 1, &data, &data_len, mac); 78461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 78561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_SHA256 */ 78761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint crypto_get_random(void *buf, size_t len) 79061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 79161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (RAND_bytes(buf, len) != 1) 79261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 79361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return 0; 79461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 79561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 79661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 79761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_OPENSSL_CMAC 79861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint omac1_aes_128_vector(const u8 *key, size_t num_elem, 79961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 80061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 80161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt CMAC_CTX *ctx; 80261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int ret = -1; 80361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t outlen, i; 80461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 80561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = CMAC_CTX_new(); 80661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 80761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 80861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 80961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Init(ctx, key, 16, EVP_aes_128_cbc(), NULL)) 81061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 81161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) { 81261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Update(ctx, addr[i], len[i])) 81361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 81461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 81561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Final(ctx, mac, &outlen) || outlen != 16) 81661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 81761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 81861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ret = 0; 81961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtfail: 82061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt CMAC_CTX_free(ctx); 82161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ret; 82261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 82361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 82461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 82561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint omac1_aes_128(const u8 *key, const u8 *data, size_t data_len, u8 *mac) 82661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 82761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return omac1_aes_128_vector(key, 1, &data, &data_len, mac); 82861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 82961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_OPENSSL_CMAC */ 830a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 831a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 832a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_bignum * crypto_bignum_init(void) 833a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 834a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_bignum *) BN_new(); 835a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 836a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 837a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 838a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_bignum * crypto_bignum_init_set(const u8 *buf, size_t len) 839a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 840a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *bn = BN_bin2bn(buf, len, NULL); 841a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_bignum *) bn; 842a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 843a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 844a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 845a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid crypto_bignum_deinit(struct crypto_bignum *n, int clear) 846a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 847a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (clear) 848a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_clear_free((BIGNUM *) n); 849a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt else 850a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free((BIGNUM *) n); 851a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 852a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 853a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 854a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_to_bin(const struct crypto_bignum *a, 855a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt u8 *buf, size_t buflen, size_t padlen) 856a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 857a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int num_bytes, offset; 858a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 859a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (padlen > buflen) 860a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 861a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 862a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt num_bytes = BN_num_bytes((const BIGNUM *) a); 863a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if ((size_t) num_bytes > buflen) 864a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 865a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (padlen > (size_t) num_bytes) 866a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt offset = padlen - num_bytes; 867a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt else 868a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt offset = 0; 869a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 870a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt os_memset(buf, 0, offset); 871a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_bn2bin((const BIGNUM *) a, buf + offset); 872a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 873a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return num_bytes + offset; 874a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 875a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 876a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 877a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_add(const struct crypto_bignum *a, 878a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 879a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 880a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 881a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_add((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b) ? 882a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0 : -1; 883a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 884a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 885a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 886a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_mod(const struct crypto_bignum *a, 887a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 888a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 889a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 890a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 891a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 892a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 893a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 894a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 895a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 896a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b, 897a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx); 898a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 899a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 900a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 901a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 902a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 903a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 904a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_exptmod(const struct crypto_bignum *a, 905a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 906a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *c, 907a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *d) 908a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 909a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 910a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 911a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 912a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 913a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 914a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 915a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_exp((BIGNUM *) d, (const BIGNUM *) a, (const BIGNUM *) b, 916a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) c, bnctx); 917a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 918a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 919a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 920a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 921a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 922a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 923a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_inverse(const struct crypto_bignum *a, 924a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 925a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 926a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 927a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *res; 928a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 929a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 930a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 931a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 932a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 933a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_inverse((BIGNUM *) c, (const BIGNUM *) a, 934a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) b, bnctx); 935a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 936a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 937a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 938a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 939a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 940a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 941a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_sub(const struct crypto_bignum *a, 942a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 943a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 944a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 945a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_sub((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b) ? 946a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0 : -1; 947a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 948a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 949a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 950a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_div(const struct crypto_bignum *a, 951a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 952a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 953a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 954a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 955a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 956a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 957a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 958a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 959a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 960a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 961a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_div((BIGNUM *) c, NULL, (const BIGNUM *) a, 962a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) b, bnctx); 963a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 964a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 965a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 966a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 967a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 968a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 969a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_mulmod(const struct crypto_bignum *a, 970a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 971a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *c, 972a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *d) 973a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 974a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 975a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 976a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 977a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 978a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 979a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 980a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 981a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_mul((BIGNUM *) d, (const BIGNUM *) a, (const BIGNUM *) b, 982a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) c, bnctx); 983a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 984a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 985a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 986a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 987a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 988a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 989a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_cmp(const struct crypto_bignum *a, 990a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b) 991a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 992a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_cmp((const BIGNUM *) a, (const BIGNUM *) b); 993a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 994a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 995a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 996a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_bits(const struct crypto_bignum *a) 997a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 998a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_num_bits((const BIGNUM *) a); 999a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1000a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1001a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1002a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_is_zero(const struct crypto_bignum *a) 1003a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1004a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_is_zero((const BIGNUM *) a); 1005a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1006a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1007a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1008a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_is_one(const struct crypto_bignum *a) 1009a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1010a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_is_one((const BIGNUM *) a); 1011a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1012a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1013a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1014a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#ifdef CONFIG_ECC 1015a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1016a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec { 1017a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_GROUP *group; 1018a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 1019a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *prime; 1020a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *order; 1021a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt}; 1022a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1023a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec * crypto_ec_init(int group) 1024a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1025a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_ec *e; 1026a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int nid; 1027a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1028a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt /* Map from IANA registry for IKE D-H groups to OpenSSL NID */ 1029a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt switch (group) { 1030a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 19: 1031a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_X9_62_prime256v1; 1032a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1033a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 20: 1034a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp384r1; 1035a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1036a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 21: 1037a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp521r1; 1038a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1039a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 25: 1040a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_X9_62_prime192v1; 1041a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1042a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 26: 1043a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp224r1; 1044a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1045a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt default: 1046a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1047a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1048a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1049a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e = os_zalloc(sizeof(*e)); 1050a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e == NULL) 1051a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1052a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1053a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->bnctx = BN_CTX_new(); 1054a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->group = EC_GROUP_new_by_curve_name(nid); 1055a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->prime = BN_new(); 1056a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->order = BN_new(); 1057a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e->group == NULL || e->bnctx == NULL || e->prime == NULL || 1058a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->order == NULL || 1059a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt !EC_GROUP_get_curve_GFp(e->group, e->prime, NULL, NULL, e->bnctx) || 1060a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt !EC_GROUP_get_order(e->group, e->order, e->bnctx)) { 1061a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt crypto_ec_deinit(e); 1062a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e = NULL; 1063a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1064a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1065a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return e; 1066a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1067a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1068a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1069a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid crypto_ec_deinit(struct crypto_ec *e) 1070a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1071a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e == NULL) 1072a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return; 10737f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(e->order); 1074661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt BN_clear_free(e->prime); 1075a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_GROUP_free(e->group); 1076a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(e->bnctx); 1077a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt os_free(e); 1078a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1079a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1080a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1081a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec_point * crypto_ec_point_init(struct crypto_ec *e) 1082a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1083a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e == NULL) 1084a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1085a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_ec_point *) EC_POINT_new(e->group); 1086a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1087a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1088a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1089a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtsize_t crypto_ec_prime_len(struct crypto_ec *e) 1090a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1091a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_num_bytes(e->prime); 1092a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1093a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1094a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1095a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtsize_t crypto_ec_prime_len_bits(struct crypto_ec *e) 1096a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1097a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_num_bits(e->prime); 1098a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1099a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1100a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1101a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtconst struct crypto_bignum * crypto_ec_get_prime(struct crypto_ec *e) 1102a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1103a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (const struct crypto_bignum *) e->prime; 1104a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1105a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1106a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1107a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtconst struct crypto_bignum * crypto_ec_get_order(struct crypto_ec *e) 1108a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1109a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (const struct crypto_bignum *) e->order; 1110a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1111a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1112a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1113a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid crypto_ec_point_deinit(struct crypto_ec_point *p, int clear) 1114a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1115a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (clear) 1116a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT_clear_free((EC_POINT *) p); 1117a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt else 1118a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT_free((EC_POINT *) p); 1119a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1120a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1121a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1122a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_to_bin(struct crypto_ec *e, 1123a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_ec_point *point, u8 *x, u8 *y) 1124a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1125a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *x_bn, *y_bn; 1126a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int ret = -1; 1127a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int len = BN_num_bytes(e->prime); 1128a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1129a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt x_bn = BN_new(); 1130a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt y_bn = BN_new(); 1131a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1132a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (x_bn && y_bn && 1133a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT_get_affine_coordinates_GFp(e->group, (EC_POINT *) point, 1134a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt x_bn, y_bn, e->bnctx)) { 1135a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (x) { 1136a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt crypto_bignum_to_bin((struct crypto_bignum *) x_bn, 1137a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt x, len, len); 1138a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1139a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (y) { 1140a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt crypto_bignum_to_bin((struct crypto_bignum *) y_bn, 1141a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt y, len, len); 1142a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1143a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt ret = 0; 1144a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1145a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 11467f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(x_bn); 11477f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(y_bn); 1148a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return ret; 1149a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1150a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1151a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1152a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec_point * crypto_ec_point_from_bin(struct crypto_ec *e, 1153a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const u8 *val) 1154a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1155a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *x, *y; 1156a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT *elem; 1157a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int len = BN_num_bytes(e->prime); 1158a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1159a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt x = BN_bin2bn(val, len, NULL); 1160a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt y = BN_bin2bn(val + len, len, NULL); 1161a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt elem = EC_POINT_new(e->group); 1162a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (x == NULL || y == NULL || elem == NULL) { 11637f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(x); 11647f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(y); 11657f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt EC_POINT_clear_free(elem); 1166a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1167a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1168a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1169a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (!EC_POINT_set_affine_coordinates_GFp(e->group, elem, x, y, 1170a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->bnctx)) { 11717f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt EC_POINT_clear_free(elem); 1172a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt elem = NULL; 1173a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1174a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 11757f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(x); 11767f0b69e88015ca077ef7a417fde0a76c10df23a5Dmitry Shmidt BN_clear_free(y); 1177a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1178a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_ec_point *) elem; 1179a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1180a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1181a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1182a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_add(struct crypto_ec *e, const struct crypto_ec_point *a, 1183a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_ec_point *b, 1184a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_ec_point *c) 1185a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1186a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return EC_POINT_add(e->group, (EC_POINT *) c, (const EC_POINT *) a, 1187a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const EC_POINT *) b, e->bnctx) ? 0 : -1; 1188a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1189a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1190a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1191a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_mul(struct crypto_ec *e, const struct crypto_ec_point *p, 1192a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 1193a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_ec_point *res) 1194a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1195a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return EC_POINT_mul(e->group, (EC_POINT *) res, NULL, 1196a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const EC_POINT *) p, (const BIGNUM *) b, e->bnctx) 1197a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt ? 0 : -1; 1198a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1199a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1200a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1201a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_invert(struct crypto_ec *e, struct crypto_ec_point *p) 1202a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1203a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return EC_POINT_invert(e->group, (EC_POINT *) p, e->bnctx) ? 0 : -1; 1204a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1205a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1206a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1207a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_solve_y_coord(struct crypto_ec *e, 1208a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_ec_point *p, 1209a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *x, int y_bit) 1210a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1211a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (!EC_POINT_set_compressed_coordinates_GFp(e->group, (EC_POINT *) p, 1212a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) x, y_bit, 1213a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->bnctx) || 1214a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt !EC_POINT_is_on_curve(e->group, (EC_POINT *) p, e->bnctx)) 1215a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 1216a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return 0; 1217a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1218a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1219a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1220a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_is_at_infinity(struct crypto_ec *e, 1221a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_ec_point *p) 1222a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1223a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return EC_POINT_is_at_infinity(e->group, (const EC_POINT *) p); 1224a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1225a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1226a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1227a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_ec_point_is_on_curve(struct crypto_ec *e, 1228a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_ec_point *p) 1229a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1230a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return EC_POINT_is_on_curve(e->group, (const EC_POINT *) p, e->bnctx); 1231a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1232a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1233a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#endif /* CONFIG_ECC */ 1234