1 /* 2 * Copyright 2020-2023 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 "crypto/evp.h" 11 12 /* NOTE: The underlying block cipher is CBC so we reuse most of the code */ 13 #define IMPLEMENT_cts_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, \ 14 blkbits, ivbits, typ) \ 15 static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \ 16 static int alg##_cts_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \ 17 { \ 18 return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \ 19 flags, kbits, blkbits, ivbits); \ 20 } \ 21 const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_cts_functions[] = { \ 22 { OSSL_FUNC_CIPHER_NEWCTX, \ 23 (void (*)(void))alg##_##kbits##_##lcmode##_newctx }, \ 24 { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))alg##_freectx }, \ 25 { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))alg##_dupctx }, \ 26 { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))alg##_cbc_cts_einit }, \ 27 { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))alg##_cbc_cts_dinit }, \ 28 { OSSL_FUNC_CIPHER_UPDATE, \ 29 (void (*)(void))ossl_cipher_cbc_cts_block_update }, \ 30 { OSSL_FUNC_CIPHER_FINAL, \ 31 (void (*)(void))ossl_cipher_cbc_cts_block_final }, \ 32 { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher }, \ 33 { OSSL_FUNC_CIPHER_GET_PARAMS, \ 34 (void (*)(void))alg##_cts_##kbits##_##lcmode##_get_params }, \ 35 { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \ 36 (void (*)(void))ossl_cipher_generic_gettable_params }, \ 37 { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \ 38 (void (*)(void))alg##_cbc_cts_get_ctx_params }, \ 39 { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \ 40 (void (*)(void))alg##_cbc_cts_set_ctx_params }, \ 41 { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \ 42 (void (*)(void))alg##_cbc_cts_gettable_ctx_params }, \ 43 { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \ 44 (void (*)(void))alg##_cbc_cts_settable_ctx_params }, \ 45 OSSL_DISPATCH_END \ 46 }; 47 48 OSSL_FUNC_cipher_update_fn ossl_cipher_cbc_cts_block_update; 49 OSSL_FUNC_cipher_final_fn ossl_cipher_cbc_cts_block_final; 50 51 const char *ossl_cipher_cbc_cts_mode_id2name(unsigned int id); 52 int ossl_cipher_cbc_cts_mode_name2id(const char *name); 53