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