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" 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto.h" 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00907000 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_key_schedule des_key_schedule 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_cblock des_cblock 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_set_key(key, schedule) des_set_key((key), *(schedule)) 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define DES_ecb_encrypt(input, output, ks, enc) \ 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt des_ecb_encrypt((input), (output), *(ks), (enc)) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.7 */ 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic BIGNUM * get_group5_prime(void) 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt static const unsigned char RFC3526_PRIME_1536[] = { 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2, 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1, 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6, 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD, 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D, 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45, 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9, 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED, 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11, 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D, 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36, 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F, 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56, 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D, 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08, 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0xCA,0x23,0x73,0x27,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt }; 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return BN_bin2bn(RFC3526_PRIME_1536, sizeof(RFC3526_PRIME_1536), NULL); 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* openssl < 0.9.8 */ 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return get_rfc3526_prime_1536(NULL); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.8 */ 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_SHA256 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_FIPS 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define NO_SHA256_WRAPPER 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* openssl < 0.9.8 */ 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OPENSSL_NO_SHA256 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define NO_SHA256_WRAPPER 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic int openssl_digest_vector(const EVP_MD *type, size_t num_elem, 8061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_MD_CTX ctx; 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int mac_len; 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_MD_CTX_init(&ctx); 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestInit_ex(&ctx, type, NULL)) { 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestInit_ex failed: %s", 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < num_elem; i++) { 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestUpdate(&ctx, addr[i], len[i])) { 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestUpdate " 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "failed: %s", 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DigestFinal(&ctx, mac, &mac_len)) { 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DigestFinal failed: %s", 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_md4(), num_elem, addr, len, mac); 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid des_encrypt(const u8 *clear, const u8 *key, u8 *cypher) 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pkey[8], next, tmp; 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int i; 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_key_schedule ks; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Add parity bits to the key */ 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next = 0; 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < 7; i++) { 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tmp = key[i]; 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pkey[i] = (tmp >> i) | next | 1; 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next = tmp << (7 - i); 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pkey[i] = next | 1; 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_set_key(&pkey, &ks); 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_ecb_encrypt((DES_cblock *) clear, (DES_cblock *) cypher, &ks, 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DES_ENCRYPT); 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint rc4_skip(const u8 *key, size_t keylen, size_t skip, 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *data, size_t data_len) 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OPENSSL_NO_RC4 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* OPENSSL_NO_RC4 */ 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX ctx; 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res = -1; 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned char skip_buf[16]; 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx); 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_CIPHER_CTX_set_padding(&ctx, 0) || 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CipherInit_ex(&ctx, EVP_rc4(), NULL, NULL, NULL, 1) || 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx, keylen) || 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CipherInit_ex(&ctx, NULL, NULL, key, NULL, 1)) 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (skip >= sizeof(skip_buf)) { 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len = skip; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len > sizeof(skip_buf)) 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = sizeof(skip_buf); 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_CipherUpdate(&ctx, skip_buf, &outl, skip_buf, len)) 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt skip -= len; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (EVP_CipherUpdate(&ctx, data, &outl, data, data_len)) 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = 0; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx); 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return res; 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC4 */ 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 17661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_md5(), num_elem, addr, len, mac); 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac) 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 18261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_sha1(), num_elem, addr, len, mac); 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef NO_SHA256_WRAPPER 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint sha256_vector(size_t num_elem, const u8 *addr[], const size_t *len, 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *mac) 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 19061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return openssl_digest_vector(EVP_sha256(), num_elem, addr, len, mac); 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* NO_SHA256_WRAPPER */ 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic const EVP_CIPHER * aes_get_evp_cipher(size_t keylen) 19661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 19761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt switch (keylen) { 19861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 16: 19961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_128_ecb(); 20061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 24: 20161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_192_ecb(); 20261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt case 32: 20361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return EVP_aes_256_ecb(); 20461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 20561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 20661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 20761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 20861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 20961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * aes_encrypt_init(const u8 *key, size_t len) 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 21261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *ctx; 21361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const EVP_CIPHER *type; 21461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 21561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt type = aes_get_evp_cipher(len); 21661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (type == NULL) 21761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 21861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 21961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = os_malloc(sizeof(*ctx)); 22061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 22261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_init(ctx); 22361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptInit_ex(ctx, type, NULL, key, NULL) != 1) { 22461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(ctx); 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_set_padding(ctx, 0); 22861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ctx; 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_encrypt(void *ctx, const u8 *plain, u8 *crypt) 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 23561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int clen = 16; 23661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptUpdate(c, crypt, &clen, plain, 16) != 1) { 23761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_EncryptUpdate failed: %s", 23861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 23961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_encrypt_deinit(void *ctx) 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 24661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 buf[16]; 24761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int len = sizeof(buf); 24861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_EncryptFinal_ex(c, buf, &len) != 1) { 24961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_EncryptFinal_ex failed: " 25061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "%s", ERR_error_string(ERR_get_error(), NULL)); 25161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 25261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (len != 0) { 25361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: Unexpected padding length %d " 25461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "in AES encrypt", len); 25561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 25661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_cleanup(c); 25761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(c); 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * aes_decrypt_init(const u8 *key, size_t len) 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *ctx; 26461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const EVP_CIPHER *type; 26561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 26661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt type = aes_get_evp_cipher(len); 26761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (type == NULL) 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 26961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 27061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = os_malloc(sizeof(*ctx)); 27161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 27261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 27361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_init(ctx); 27461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptInit_ex(ctx, type, NULL, key, NULL) != 1) { 27561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(ctx); 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_set_padding(ctx, 0); 27961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ctx; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_decrypt(void *ctx, const u8 *crypt, u8 *plain) 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 28661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int plen = 16; 28761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptUpdate(c, plain, &plen, crypt, 16) != 1) { 28861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DecryptUpdate failed: %s", 28961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ERR_error_string(ERR_get_error(), NULL)); 29061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid aes_decrypt_deinit(void *ctx) 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 29661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX *c = ctx; 29761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 buf[16]; 29861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int len = sizeof(buf); 29961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (EVP_DecryptFinal_ex(c, buf, &len) != 1) { 30061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: EVP_DecryptFinal_ex failed: " 30161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "%s", ERR_error_string(ERR_get_error(), NULL)); 30261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 30361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (len != 0) { 30461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_ERROR, "OpenSSL: Unexpected padding length %d " 30561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt "in AES decrypt", len); 30661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 30761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt EVP_CIPHER_CTX_cleanup(c); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_mod_exp(const u8 *base, size_t base_len, 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *power, size_t power_len, 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *modulus, size_t modulus_len, 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *result, size_t *result_len) 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BIGNUM *bn_base, *bn_exp, *bn_modulus, *bn_result; 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret = -1; 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_CTX *ctx; 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ctx = BN_CTX_new(); 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_base = BN_bin2bn(base, base_len, NULL); 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_exp = BN_bin2bn(power, power_len, NULL); 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_modulus = BN_bin2bn(modulus, modulus_len, NULL); 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_result = BN_new(); 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bn_base == NULL || bn_exp == NULL || bn_modulus == NULL || 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bn_result == NULL) 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (BN_mod_exp(bn_result, bn_base, bn_exp, bn_modulus, ctx) != 1) 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *result_len = BN_bn2bin(bn_result, result); 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = 0; 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(bn_base); 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(bn_exp); 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(bn_modulus); 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(bn_result); 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_CTX_free(ctx); 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct crypto_cipher { 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX enc; 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX dec; 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg, 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *iv, const u8 *key, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len) 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct crypto_cipher *ctx; 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const EVP_CIPHER *cipher; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ctx = os_zalloc(sizeof(*ctx)); 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (alg) { 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_RC4 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_RC4: 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_rc4(); 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC4 */ 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_AES 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_AES: 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (key_len) { 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 16: 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_128_cbc(); 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 24: 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_192_cbc(); 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case 32: 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_aes_256_cbc(); 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_AES */ 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_DES 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_3DES: 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_des_ede3_cbc(); 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_DES: 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_des_cbc(); 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_DES */ 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OPENSSL_NO_RC2 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CRYPTO_CIPHER_ALG_RC2: 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = EVP_rc2_ecb(); 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OPENSSL_NO_RC2 */ 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx->enc); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_set_padding(&ctx->enc, 0); 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_EncryptInit_ex(&ctx->enc, cipher, NULL, NULL, NULL) || 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx->enc, key_len) || 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_EncryptInit_ex(&ctx->enc, NULL, NULL, key, iv)) { 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_init(&ctx->dec); 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_set_padding(&ctx->dec, 0); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DecryptInit_ex(&ctx->dec, cipher, NULL, NULL, NULL) || 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_CIPHER_CTX_set_key_length(&ctx->dec, key_len) || 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !EVP_DecryptInit_ex(&ctx->dec, NULL, NULL, key, iv)) { 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->dec); 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ctx; 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_cipher_encrypt(struct crypto_cipher *ctx, const u8 *plain, 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *crypt, size_t len) 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_EncryptUpdate(&ctx->enc, crypt, &outl, plain, len)) 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint crypto_cipher_decrypt(struct crypto_cipher *ctx, const u8 *crypt, 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *plain, size_t len) 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int outl; 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt outl = len; 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!EVP_DecryptUpdate(&ctx->dec, plain, &outl, crypt, len)) 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid crypto_cipher_deinit(struct crypto_cipher *ctx) 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->enc); 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVP_CIPHER_CTX_cleanup(&ctx->dec); 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(ctx); 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * dh5_init(struct wpabuf **priv, struct wpabuf **publ) 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh; 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *pubkey = NULL, *privkey = NULL; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t publen, privlen; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *priv = NULL; 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *publ = NULL; 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh = DH_new(); 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh == NULL) 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh->g = BN_new(); 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh->g == NULL || BN_set_word(dh->g, 2) != 1) 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh->p = get_group5_prime(); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dh->p == NULL) 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (DH_generate_key(dh) != 1) 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt publen = BN_num_bytes(dh->pub_key); 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pubkey = wpabuf_alloc(publen); 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pubkey == NULL) 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt privlen = BN_num_bytes(dh->priv_key); 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt privkey = wpabuf_alloc(privlen); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (privkey == NULL) 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_bn2bin(dh->pub_key, wpabuf_put(pubkey, publen)); 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_bn2bin(dh->priv_key, wpabuf_put(privkey, privlen)); 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *priv = privkey; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *publ = pubkey; 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return dh; 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterr: 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(pubkey); 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(privkey); 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH_free(dh); 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 51104949598a23f501be6eec21697465fd46a28840aDmitry Shmidtvoid * dh5_init_fixed(const struct wpabuf *priv, const struct wpabuf *publ) 51204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 51304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt DH *dh; 51404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 51504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh = DH_new(); 51604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh == NULL) 51704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 51804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 51904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->g = BN_new(); 52004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->g == NULL || BN_set_word(dh->g, 2) != 1) 52104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 52204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 52304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->p = get_group5_prime(); 52404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->p == NULL) 52504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 52604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 52704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->priv_key = BN_bin2bn(wpabuf_head(priv), wpabuf_len(priv), NULL); 52804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->priv_key == NULL) 52904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 53004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 53104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt dh->pub_key = BN_bin2bn(wpabuf_head(publ), wpabuf_len(publ), NULL); 53204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (dh->pub_key == NULL) 53304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 53404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 53504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (DH_generate_key(dh) != 1) 53604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt goto err; 53704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 53804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return dh; 53904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 54004949598a23f501be6eec21697465fd46a28840aDmitry Shmidterr: 54104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt DH_free(dh); 54204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 54304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 54404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 54504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpabuf * dh5_derive_shared(void *ctx, const struct wpabuf *peer_public, 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *own_private) 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BIGNUM *pub_key; 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *res = NULL; 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rlen; 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh = ctx; 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int keylen; 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pub_key = BN_bin2bn(wpabuf_head(peer_public), wpabuf_len(peer_public), 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt NULL); 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pub_key == NULL) 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = DH_size(dh); 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpabuf_alloc(rlen); 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res == NULL) 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt keylen = DH_compute_key(wpabuf_mhead(res), pub_key, dh); 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (keylen < 0) 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto err; 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put(res, keylen); 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(pub_key); 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return res; 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterr: 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt BN_free(pub_key); 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(res); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid dh5_free(void *ctx) 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH *dh; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ctx == NULL) 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dh = ctx; 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DH_free(dh); 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 59104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59304949598a23f501be6eec21697465fd46a28840aDmitry Shmidtstruct crypto_hash { 59404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_CTX ctx; 59504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt}; 59604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 59804949598a23f501be6eec21697465fd46a28840aDmitry Shmidtstruct crypto_hash * crypto_hash_init(enum crypto_hash_alg alg, const u8 *key, 59904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt size_t key_len) 60004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 60104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt struct crypto_hash *ctx; 60204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt const EVP_MD *md; 60304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 60404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt switch (alg) { 60504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_MD5 60604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_MD5: 60704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_md5(); 60804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 60904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_MD5 */ 61004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_SHA 61104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_SHA1: 61204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_sha1(); 61304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 61404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_SHA */ 61504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifndef OPENSSL_NO_SHA256 61604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#ifdef CONFIG_SHA256 61704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt case CRYPTO_HASH_ALG_HMAC_SHA256: 61804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt md = EVP_sha256(); 61904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt break; 62004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* CONFIG_SHA256 */ 62104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* OPENSSL_NO_SHA256 */ 62204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt default: 62304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 62404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 62504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 62604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt ctx = os_zalloc(sizeof(*ctx)); 62704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 62804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 62961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx->ctx); 63004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 63104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 63204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Init_ex(&ctx->ctx, key, key_len, md, NULL); 63304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#else /* openssl < 0.9.9 */ 63404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (HMAC_Init_ex(&ctx->ctx, key, key_len, md, NULL) != 1) { 63504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 63604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return NULL; 63704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 63804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* openssl < 0.9.9 */ 63904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 64004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return ctx; 64104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 64204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 64304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 64404949598a23f501be6eec21697465fd46a28840aDmitry Shmidtvoid crypto_hash_update(struct crypto_hash *ctx, const u8 *data, size_t len) 64504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 64604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 64704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return; 64804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Update(&ctx->ctx, data, len); 64904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 65004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65204949598a23f501be6eec21697465fd46a28840aDmitry Shmidtint crypto_hash_finish(struct crypto_hash *ctx, u8 *mac, size_t *len) 65304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 65404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt unsigned int mdlen; 65504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt int res; 65604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 65704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (ctx == NULL) 65804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return -2; 65904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 66004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (mac == NULL || len == NULL) { 66104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 66204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return 0; 66304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 66404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 66504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt mdlen = *len; 66604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 66704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_Final(&ctx->ctx, mac, &mdlen); 66804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt res = 1; 66904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#else /* openssl < 0.9.9 */ 67004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt res = HMAC_Final(&ctx->ctx, mac, &mdlen); 67104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#endif /* openssl < 0.9.9 */ 67204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt HMAC_CTX_cleanup(&ctx->ctx); 67304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_free(ctx); 67404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 67504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (res == 1) { 67604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *len = mdlen; 67704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return 0; 67804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 67904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 68004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return -1; 68104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 68261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 68361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 68461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint pbkdf2_sha1(const char *passphrase, const u8 *ssid, size_t ssid_len, 68561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int iterations, u8 *buf, size_t buflen) 68661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 68761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00908000 68861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (PKCS5_PBKDF2_HMAC_SHA1(passphrase, os_strlen(passphrase), 68961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt (unsigned char *) ssid, 69061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ssid_len, 4096, buflen, buf) != 1) 69161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 69261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.8 */ 69361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (PKCS5_PBKDF2_HMAC_SHA1(passphrase, os_strlen(passphrase), ssid, 69461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ssid_len, 4096, buflen, buf) != 1) 69561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 69661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.8 */ 69761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return 0; 69861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 69961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 70061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 70161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha1_vector(const u8 *key, size_t key_len, size_t num_elem, 70261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 70361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 70461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX ctx; 70561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 70661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt unsigned int mdlen; 70761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int res; 70861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 70961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx); 71061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 71161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Init_ex(&ctx, key, key_len, EVP_sha1(), NULL); 71261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 71361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (HMAC_Init_ex(&ctx, key, key_len, EVP_sha1(), NULL) != 1) 71461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 71561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 71661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 71761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) 71861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Update(&ctx, addr[i], len[i]); 71961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 72061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt mdlen = 20; 72161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 72261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Final(&ctx, mac, &mdlen); 72361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = 1; 72461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 72561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = HMAC_Final(&ctx, mac, &mdlen); 72661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 72761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_cleanup(&ctx); 72861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 72961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return res == 1 ? 0 : -1; 73061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 73161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha1(const u8 *key, size_t key_len, const u8 *data, size_t data_len, 73461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 *mac) 73561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 73661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return hmac_sha1_vector(key, key_len, 1, &data, &data_len, mac); 73761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 73861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 73961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 74061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_SHA256 74161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 74261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem, 74361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 74461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 74561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX ctx; 74661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 74761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt unsigned int mdlen; 74861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int res; 74961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 75061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_init(&ctx); 75161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 75261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Init_ex(&ctx, key, key_len, EVP_sha256(), NULL); 75361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 75461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (HMAC_Init_ex(&ctx, key, key_len, EVP_sha256(), NULL) != 1) 75561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 75661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 75761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 75861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) 75961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Update(&ctx, addr[i], len[i]); 76061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 76161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt mdlen = 32; 76261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#if OPENSSL_VERSION_NUMBER < 0x00909000 76361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_Final(&ctx, mac, &mdlen); 76461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = 1; 76561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#else /* openssl < 0.9.9 */ 76661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = HMAC_Final(&ctx, mac, &mdlen); 76761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* openssl < 0.9.9 */ 76861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt HMAC_CTX_cleanup(&ctx); 76961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 77061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return res == 1 ? 0 : -1; 77161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 77261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 77361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 77461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint hmac_sha256(const u8 *key, size_t key_len, const u8 *data, 77561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t data_len, u8 *mac) 77661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 77761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return hmac_sha256_vector(key, key_len, 1, &data, &data_len, mac); 77861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 77961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_SHA256 */ 78161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 78361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint crypto_get_random(void *buf, size_t len) 78461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 78561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (RAND_bytes(buf, len) != 1) 78661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 78761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return 0; 78861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 78961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 79061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 79161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_OPENSSL_CMAC 79261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint omac1_aes_128_vector(const u8 *key, size_t num_elem, 79361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *addr[], const size_t *len, u8 *mac) 79461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 79561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt CMAC_CTX *ctx; 79661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int ret = -1; 79761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t outlen, i; 79861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 79961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ctx = CMAC_CTX_new(); 80061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ctx == NULL) 80161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 80261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 80361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Init(ctx, key, 16, EVP_aes_128_cbc(), NULL)) 80461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 80561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < num_elem; i++) { 80661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Update(ctx, addr[i], len[i])) 80761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 80861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 80961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!CMAC_Final(ctx, mac, &outlen) || outlen != 16) 81061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt goto fail; 81161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 81261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ret = 0; 81361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtfail: 81461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt CMAC_CTX_free(ctx); 81561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return ret; 81661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 81761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 81861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 81961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtint omac1_aes_128(const u8 *key, const u8 *data, size_t data_len, u8 *mac) 82061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 82161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return omac1_aes_128_vector(key, 1, &data, &data_len, mac); 82261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 82361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_OPENSSL_CMAC */ 824a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 825a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 826a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_bignum * crypto_bignum_init(void) 827a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 828a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_bignum *) BN_new(); 829a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 830a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 831a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 832a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_bignum * crypto_bignum_init_set(const u8 *buf, size_t len) 833a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 834a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *bn = BN_bin2bn(buf, len, NULL); 835a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return (struct crypto_bignum *) bn; 836a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 837a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 838a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 839a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid crypto_bignum_deinit(struct crypto_bignum *n, int clear) 840a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 841a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (clear) 842a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_clear_free((BIGNUM *) n); 843a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt else 844a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free((BIGNUM *) n); 845a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 846a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 847a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 848a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_to_bin(const struct crypto_bignum *a, 849a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt u8 *buf, size_t buflen, size_t padlen) 850a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 851a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int num_bytes, offset; 852a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 853a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (padlen > buflen) 854a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 855a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 856a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt num_bytes = BN_num_bytes((const BIGNUM *) a); 857a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if ((size_t) num_bytes > buflen) 858a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 859a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (padlen > (size_t) num_bytes) 860a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt offset = padlen - num_bytes; 861a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt else 862a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt offset = 0; 863a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 864a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt os_memset(buf, 0, offset); 865a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_bn2bin((const BIGNUM *) a, buf + offset); 866a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 867a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return num_bytes + offset; 868a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 869a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 870a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 871a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_add(const struct crypto_bignum *a, 872a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 873a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 874a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 875a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_add((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b) ? 876a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0 : -1; 877a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 878a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 879a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 880a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_mod(const struct crypto_bignum *a, 881a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 882a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 883a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 884a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 885a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 886a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 887a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 888a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 889a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 890a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b, 891a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx); 892a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 893a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 894a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 895a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 896a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 897a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 898a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_exptmod(const struct crypto_bignum *a, 899a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 900a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *c, 901a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *d) 902a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 903a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 904a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 905a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 906a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 907a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 908a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 909a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_exp((BIGNUM *) d, (const BIGNUM *) a, (const BIGNUM *) b, 910a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) c, bnctx); 911a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 912a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 913a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 914a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 915a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 916a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 917a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_rshift(const struct crypto_bignum *a, int n, 918a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *b) 919a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 920a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_rshift((BIGNUM *) b, (const BIGNUM *) a, n) ? 0 : -1; 921a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 922a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 923a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 924a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_inverse(const struct crypto_bignum *a, 925a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 926a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 927a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 928a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *res; 929a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 930a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 931a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 932a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 933a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 934a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_inverse((BIGNUM *) c, (const BIGNUM *) a, 935a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) b, bnctx); 936a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 937a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 938a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 939a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 940a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 941a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 942a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_sub(const struct crypto_bignum *a, 943a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 944a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 945a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 946a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_sub((BIGNUM *) c, (const BIGNUM *) a, (const BIGNUM *) b) ? 947a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0 : -1; 948a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 949a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 950a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 951a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_div(const struct crypto_bignum *a, 952a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 953a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *c) 954a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 955a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 956a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 957a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 958a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 959a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 960a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 961a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 962a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_div((BIGNUM *) c, NULL, (const BIGNUM *) a, 963a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) b, bnctx); 964a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 965a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 966a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 967a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 968a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 969a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 970a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_mulmod(const struct crypto_bignum *a, 971a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b, 972a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *c, 973a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_bignum *d) 974a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 975a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int res; 976a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 977a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 978a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 979a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt bnctx = BN_CTX_new(); 980a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (bnctx == NULL) 981a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return -1; 982a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt res = BN_mod_mul((BIGNUM *) d, (const BIGNUM *) a, (const BIGNUM *) b, 983a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt (const BIGNUM *) c, bnctx); 984a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX_free(bnctx); 985a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 986a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return res ? 0 : -1; 987a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 988a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 989a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 990a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_cmp(const struct crypto_bignum *a, 991a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt const struct crypto_bignum *b) 992a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 993a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_cmp((const BIGNUM *) a, (const BIGNUM *) b); 994a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 995a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 996a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 997a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_bits(const struct crypto_bignum *a) 998a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 999a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_num_bits((const BIGNUM *) a); 1000a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1001a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1002a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1003a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_is_zero(const struct crypto_bignum *a) 1004a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1005a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_is_zero((const BIGNUM *) a); 1006a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1007a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1008a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1009a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtint crypto_bignum_is_one(const struct crypto_bignum *a) 1010a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1011a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return BN_is_one((const BIGNUM *) a); 1012a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1013a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1014a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1015a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt#ifdef CONFIG_ECC 1016a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1017a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec { 1018a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_GROUP *group; 1019a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_CTX *bnctx; 1020a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *prime; 1021a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BIGNUM *order; 1022a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt}; 1023a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1024a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtstruct crypto_ec * crypto_ec_init(int group) 1025a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1026a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct crypto_ec *e; 1027a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt int nid; 1028a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1029a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt /* Map from IANA registry for IKE D-H groups to OpenSSL NID */ 1030a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt switch (group) { 1031a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 19: 1032a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_X9_62_prime256v1; 1033a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1034a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 20: 1035a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp384r1; 1036a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1037a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 21: 1038a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp521r1; 1039a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1040a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 25: 1041a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_X9_62_prime192v1; 1042a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1043a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt case 26: 1044a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt nid = NID_secp224r1; 1045a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt break; 1046a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt default: 1047a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1048a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1049a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1050a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e = os_zalloc(sizeof(*e)); 1051a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e == NULL) 1052a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return NULL; 1053a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1054a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->bnctx = BN_CTX_new(); 1055a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->group = EC_GROUP_new_by_curve_name(nid); 1056a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->prime = BN_new(); 1057a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->order = BN_new(); 1058a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e->group == NULL || e->bnctx == NULL || e->prime == NULL || 1059a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e->order == NULL || 1060a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt !EC_GROUP_get_curve_GFp(e->group, e->prime, NULL, NULL, e->bnctx) || 1061a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt !EC_GROUP_get_order(e->group, e->order, e->bnctx)) { 1062a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt crypto_ec_deinit(e); 1063a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt e = NULL; 1064a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1065a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1066a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return e; 1067a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 1068a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1069a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1070a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid crypto_ec_deinit(struct crypto_ec *e) 1071a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 1072a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (e == NULL) 1073a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return; 1074a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free(e->order); 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 1146a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free(x_bn); 1147a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_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) { 1163a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free(x); 1164a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free(y); 1165a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT_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)) { 1171a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt EC_POINT_free(elem); 1172a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt elem = NULL; 1173a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt } 1174a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 1175a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_free(x); 1176a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt BN_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