| 1 | /*
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| 2 | * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include "crypto/evp.h"
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| 11 |
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| 12 | /* NOTE: The underlying block cipher is CBC so we reuse most of the code */
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| 13 | #define IMPLEMENT_cts_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, \
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| 14 | blkbits, ivbits, typ) \
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| 15 | static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \
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| 16 | static int alg##_cts_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
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| 17 | { \
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| 18 | return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
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| 19 | flags, kbits, blkbits, ivbits); \
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| 20 | } \
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| 21 | const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_cts_functions[] = { \
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| 22 | { OSSL_FUNC_CIPHER_NEWCTX, \
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| 23 | (void (*)(void)) alg##_##kbits##_##lcmode##_newctx }, \
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| 24 | { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \
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| 25 | { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \
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| 26 | { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void)) alg##_cbc_cts_einit }, \
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| 27 | { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void)) alg##_cbc_cts_dinit }, \
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| 28 | { OSSL_FUNC_CIPHER_UPDATE, \
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| 29 | (void (*)(void)) ossl_cipher_cbc_cts_block_update }, \
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| 30 | { OSSL_FUNC_CIPHER_FINAL, \
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| 31 | (void (*)(void)) ossl_cipher_cbc_cts_block_final }, \
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| 32 | { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher }, \
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| 33 | { OSSL_FUNC_CIPHER_GET_PARAMS, \
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| 34 | (void (*)(void)) alg##_cts_##kbits##_##lcmode##_get_params }, \
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| 35 | { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
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| 36 | (void (*)(void))ossl_cipher_generic_gettable_params }, \
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| 37 | { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
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| 38 | (void (*)(void)) alg##_cbc_cts_get_ctx_params }, \
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| 39 | { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
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| 40 | (void (*)(void)) alg##_cbc_cts_set_ctx_params }, \
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| 41 | { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
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| 42 | (void (*)(void)) alg##_cbc_cts_gettable_ctx_params }, \
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| 43 | { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
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| 44 | (void (*)(void)) alg##_cbc_cts_settable_ctx_params }, \
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| 45 | { 0, NULL } \
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| 46 | };
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| 47 |
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| 48 | OSSL_FUNC_cipher_update_fn ossl_cipher_cbc_cts_block_update;
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| 49 | OSSL_FUNC_cipher_final_fn ossl_cipher_cbc_cts_block_final;
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| 50 |
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| 51 | const char *ossl_cipher_cbc_cts_mode_id2name(unsigned int id);
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| 52 | int ossl_cipher_cbc_cts_mode_name2id(const char *name);
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