1 /* 2 * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 /* 11 * AES low level APIs are deprecated for public use, but still ok for internal 12 * use where we're using them to implement the higher level EVP interface, as is 13 * the case here. 14 */ 15 #include "internal/deprecated.h" 16 17 /* Dispatch functions for AES cipher modes ecb, cbc, ofb, cfb, ctr */ 18 19 #include "cipher_aes.h" 20 #include "prov/implementations.h" 21 #include "prov/providercommon.h" 22 23 static OSSL_FUNC_cipher_freectx_fn aes_freectx; 24 static OSSL_FUNC_cipher_dupctx_fn aes_dupctx; 25 26 static void aes_freectx(void *vctx) 27 { 28 PROV_AES_CTX *ctx = (PROV_AES_CTX *)vctx; 29 30 ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx); 31 OPENSSL_clear_free(ctx, sizeof(*ctx)); 32 } 33 34 static void *aes_dupctx(void *ctx) 35 { 36 PROV_AES_CTX *in = (PROV_AES_CTX *)ctx; 37 PROV_AES_CTX *ret; 38 39 if (!ossl_prov_is_running()) 40 return NULL; 41 42 ret = OPENSSL_malloc(sizeof(*ret)); 43 if (ret == NULL) { 44 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); 45 return NULL; 46 } 47 in->base.hw->copyctx(&ret->base, &in->base); 48 49 return ret; 50 } 51 52 /* ossl_aes256ecb_functions */ 53 IMPLEMENT_generic_cipher(aes, AES, ecb, ECB, 0, 256, 128, 0, block) 54 /* ossl_aes192ecb_functions */ 55 IMPLEMENT_generic_cipher(aes, AES, ecb, ECB, 0, 192, 128, 0, block) 56 /* ossl_aes128ecb_functions */ 57 IMPLEMENT_generic_cipher(aes, AES, ecb, ECB, 0, 128, 128, 0, block) 58 /* ossl_aes256cbc_functions */ 59 IMPLEMENT_generic_cipher(aes, AES, cbc, CBC, 0, 256, 128, 128, block) 60 /* ossl_aes192cbc_functions */ 61 IMPLEMENT_generic_cipher(aes, AES, cbc, CBC, 0, 192, 128, 128, block) 62 /* ossl_aes128cbc_functions */ 63 IMPLEMENT_generic_cipher(aes, AES, cbc, CBC, 0, 128, 128, 128, block) 64 /* ossl_aes256ofb_functions */ 65 IMPLEMENT_generic_cipher(aes, AES, ofb, OFB, 0, 256, 8, 128, stream) 66 /* ossl_aes192ofb_functions */ 67 IMPLEMENT_generic_cipher(aes, AES, ofb, OFB, 0, 192, 8, 128, stream) 68 /* ossl_aes128ofb_functions */ 69 IMPLEMENT_generic_cipher(aes, AES, ofb, OFB, 0, 128, 8, 128, stream) 70 /* ossl_aes256cfb_functions */ 71 IMPLEMENT_generic_cipher(aes, AES, cfb, CFB, 0, 256, 8, 128, stream) 72 /* ossl_aes192cfb_functions */ 73 IMPLEMENT_generic_cipher(aes, AES, cfb, CFB, 0, 192, 8, 128, stream) 74 /* ossl_aes128cfb_functions */ 75 IMPLEMENT_generic_cipher(aes, AES, cfb, CFB, 0, 128, 8, 128, stream) 76 /* ossl_aes256cfb1_functions */ 77 IMPLEMENT_generic_cipher(aes, AES, cfb1, CFB, 0, 256, 8, 128, stream) 78 /* ossl_aes192cfb1_functions */ 79 IMPLEMENT_generic_cipher(aes, AES, cfb1, CFB, 0, 192, 8, 128, stream) 80 /* ossl_aes128cfb1_functions */ 81 IMPLEMENT_generic_cipher(aes, AES, cfb1, CFB, 0, 128, 8, 128, stream) 82 /* ossl_aes256cfb8_functions */ 83 IMPLEMENT_generic_cipher(aes, AES, cfb8, CFB, 0, 256, 8, 128, stream) 84 /* ossl_aes192cfb8_functions */ 85 IMPLEMENT_generic_cipher(aes, AES, cfb8, CFB, 0, 192, 8, 128, stream) 86 /* ossl_aes128cfb8_functions */ 87 IMPLEMENT_generic_cipher(aes, AES, cfb8, CFB, 0, 128, 8, 128, stream) 88 /* ossl_aes256ctr_functions */ 89 IMPLEMENT_generic_cipher(aes, AES, ctr, CTR, 0, 256, 8, 128, stream) 90 /* ossl_aes192ctr_functions */ 91 IMPLEMENT_generic_cipher(aes, AES, ctr, CTR, 0, 192, 8, 128, stream) 92 /* ossl_aes128ctr_functions */ 93 IMPLEMENT_generic_cipher(aes, AES, ctr, CTR, 0, 128, 8, 128, stream) 94 95 #include "cipher_aes_cts.inc" 96