1 /* 2 * Copyright 2019-2021 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 #include "cipher_sm4.h" 11 12 static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx, 13 const unsigned char *key, size_t keylen) 14 { 15 PROV_SM4_CTX *sctx = (PROV_SM4_CTX *)ctx; 16 SM4_KEY *ks = &sctx->ks.ks; 17 18 ossl_sm4_set_key(key, ks); 19 ctx->ks = ks; 20 if (ctx->enc 21 || (ctx->mode != EVP_CIPH_ECB_MODE 22 && ctx->mode != EVP_CIPH_CBC_MODE)) 23 ctx->block = (block128_f)ossl_sm4_encrypt; 24 else 25 ctx->block = (block128_f)ossl_sm4_decrypt; 26 return 1; 27 } 28 29 IMPLEMENT_CIPHER_HW_COPYCTX(cipher_hw_sm4_copyctx, PROV_SM4_CTX) 30 31 # define PROV_CIPHER_HW_sm4_mode(mode) \ 32 static const PROV_CIPHER_HW sm4_##mode = { \ 33 cipher_hw_sm4_initkey, \ 34 ossl_cipher_hw_chunked_##mode, \ 35 cipher_hw_sm4_copyctx \ 36 }; \ 37 const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_##mode(size_t keybits) \ 38 { \ 39 return &sm4_##mode; \ 40 } 41 42 PROV_CIPHER_HW_sm4_mode(cbc) 43 PROV_CIPHER_HW_sm4_mode(ecb) 44 PROV_CIPHER_HW_sm4_mode(ofb128) 45 PROV_CIPHER_HW_sm4_mode(cfb128) 46 PROV_CIPHER_HW_sm4_mode(ctr) 47