mirror of https://github.com/openssl/openssl.git
95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
/*
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* Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Dispatch functions for CAMELLIA CBC CTS ciphers */
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#include <openssl/proverr.h>
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#include "cipher_cts.h"
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#define CTS_FLAGS PROV_CIPHER_FLAG_CTS
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static OSSL_FUNC_cipher_encrypt_init_fn camellia_cbc_cts_einit;
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static OSSL_FUNC_cipher_decrypt_init_fn camellia_cbc_cts_dinit;
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static OSSL_FUNC_cipher_get_ctx_params_fn camellia_cbc_cts_get_ctx_params;
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static OSSL_FUNC_cipher_set_ctx_params_fn camellia_cbc_cts_set_ctx_params;
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static OSSL_FUNC_cipher_gettable_ctx_params_fn camellia_cbc_cts_gettable_ctx_params;
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static OSSL_FUNC_cipher_settable_ctx_params_fn camellia_cbc_cts_settable_ctx_params;
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(camellia_cbc_cts)
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OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(camellia_cbc_cts)
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static int camellia_cbc_cts_einit(void *ctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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if (!ossl_cipher_generic_einit(ctx, key, keylen, iv, ivlen, NULL))
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return 0;
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return camellia_cbc_cts_set_ctx_params(ctx, params);
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}
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static int camellia_cbc_cts_dinit(void *ctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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if (!ossl_cipher_generic_dinit(ctx, key, keylen, iv, ivlen, NULL))
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return 0;
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return camellia_cbc_cts_set_ctx_params(ctx, params);
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}
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static int camellia_cbc_cts_get_ctx_params(void *vctx, OSSL_PARAM params[])
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{
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PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
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OSSL_PARAM *p;
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_CTS_MODE);
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if (p != NULL) {
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const char *name = ossl_cipher_cbc_cts_mode_id2name(ctx->cts_mode);
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if (name == NULL || !OSSL_PARAM_set_utf8_string(p, name)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
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return 0;
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}
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}
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return ossl_cipher_generic_get_ctx_params(vctx, params);
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}
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CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(camellia_cbc_cts)
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OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
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CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(camellia_cbc_cts)
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static int camellia_cbc_cts_set_ctx_params(void *vctx, const OSSL_PARAM params[])
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{
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PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
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const OSSL_PARAM *p;
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int id;
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p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_CTS_MODE);
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if (p != NULL) {
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if (p->data_type != OSSL_PARAM_UTF8_STRING)
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goto err;
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id = ossl_cipher_cbc_cts_mode_name2id(p->data);
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if (id < 0)
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goto err;
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ctx->cts_mode = (unsigned int)id;
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}
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return ossl_cipher_generic_set_ctx_params(vctx, params);
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err:
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
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return 0;
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}
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/* ossl_camellia256cbc_cts_functions */
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IMPLEMENT_cts_cipher(camellia, CAMELLIA, cbc, CBC, CTS_FLAGS, 256, 128, 128, block)
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/* ossl_camellia192cbc_cts_functions */
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IMPLEMENT_cts_cipher(camellia, CAMELLIA, cbc, CBC, CTS_FLAGS, 192, 128, 128, block)
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/* ossl_camellia128cbc_cts_functions */
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IMPLEMENT_cts_cipher(camellia, CAMELLIA, cbc, CBC, CTS_FLAGS, 128, 128, 128, block)
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