1 /* ==================================================================== 2 * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * 3. All advertising materials mentioning features or use of this 17 * software must display the following acknowledgment: 18 * "This product includes software developed by the OpenSSL Project 19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 20 * 21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 22 * endorse or promote products derived from this software without 23 * prior written permission. For written permission, please contact 24 * openssl-core (at) openssl.org. 25 * 26 * 5. Products derived from this software may not be called "OpenSSL" 27 * nor may "OpenSSL" appear in their names without prior written 28 * permission of the OpenSSL Project. 29 * 30 * 6. Redistributions of any form whatsoever must retain the following 31 * acknowledgment: 32 * "This product includes software developed by the OpenSSL Project 33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 34 * 35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 46 * OF THE POSSIBILITY OF SUCH DAMAGE. 47 * ==================================================================== */ 48 49 #include <openssl/aes.h> 50 51 #include <assert.h> 52 53 #include "../aes/internal.h" 54 #include "../modes/internal.h" 55 56 57 void AES_ctr128_encrypt(const uint8_t *in, uint8_t *out, size_t len, 58 const AES_KEY *key, uint8_t ivec[AES_BLOCK_SIZE], 59 uint8_t ecount_buf[AES_BLOCK_SIZE], unsigned int *num) { 60 CRYPTO_ctr128_encrypt(in, out, len, key, ivec, ecount_buf, num, AES_encrypt); 61 } 62 63 void AES_ecb_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key, 64 const int enc) { 65 assert(in && out && key); 66 assert((AES_ENCRYPT == enc) || (AES_DECRYPT == enc)); 67 68 if (AES_ENCRYPT == enc) { 69 AES_encrypt(in, out, key); 70 } else { 71 AES_decrypt(in, out, key); 72 } 73 } 74 75 void AES_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len, 76 const AES_KEY *key, uint8_t *ivec, const int enc) { 77 if (hwaes_capable()) { 78 aes_hw_cbc_encrypt(in, out, len, key, ivec, enc); 79 return; 80 } 81 82 #if defined(AES_NOHW_CBC) 83 if (!vpaes_capable()) { 84 aes_nohw_cbc_encrypt(in, out, len, key, ivec, enc); 85 return; 86 } 87 #endif 88 if (enc) { 89 CRYPTO_cbc128_encrypt(in, out, len, key, ivec, AES_encrypt); 90 } else { 91 CRYPTO_cbc128_decrypt(in, out, len, key, ivec, AES_decrypt); 92 } 93 } 94 95 void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out, size_t length, 96 const AES_KEY *key, uint8_t *ivec, int *num) { 97 unsigned num_u = (unsigned)(*num); 98 CRYPTO_ofb128_encrypt(in, out, length, key, ivec, &num_u, AES_encrypt); 99 *num = (int)num_u; 100 } 101 102 void AES_cfb128_encrypt(const uint8_t *in, uint8_t *out, size_t length, 103 const AES_KEY *key, uint8_t *ivec, int *num, 104 int enc) { 105 unsigned num_u = (unsigned)(*num); 106 CRYPTO_cfb128_encrypt(in, out, length, key, ivec, &num_u, enc, AES_encrypt); 107 *num = (int)num_u; 108 } 109
