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363b1e5dae
The new naming scheme consistently usese the `OSSL_FUNC_` prefix for all functions which are dispatched between the core and providers. This change includes in particular all up- and downcalls, i.e., the dispatched functions passed from core to provider and vice versa. - OSSL_core_ -> OSSL_FUNC_core_ - OSSL_provider_ -> OSSL_FUNC_core_ For operations and their function dispatch tables, the following convention is used: Type | Name (evp_generic_fetch(3)) | ---------------------|-----------------------------------| operation | OSSL_OP_FOO | function id | OSSL_FUNC_FOO_FUNCTION_NAME | function "name" | OSSL_FUNC_foo_function_name | function typedef | OSSL_FUNC_foo_function_name_fn | function ptr getter | OSSL_FUNC_foo_function_name | Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/12222)
153 lines
6.6 KiB
C
153 lines
6.6 KiB
C
/*
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* Copyright 2019-2020 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 RC5 cipher modes ecb, cbc, ofb, cfb */
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/*
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* RC5 low level APIs are deprecated for public use, but still ok for internal
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* use.
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*/
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#include "internal/deprecated.h"
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#include "cipher_rc5.h"
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#include "prov/implementations.h"
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#include "prov/providercommonerr.h"
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static OSSL_FUNC_cipher_freectx_fn rc5_freectx;
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static OSSL_FUNC_cipher_dupctx_fn rc5_dupctx;
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OSSL_FUNC_cipher_gettable_ctx_params_fn rc5_gettable_ctx_params;
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OSSL_FUNC_cipher_settable_ctx_params_fn rc5_settable_ctx_params;
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static void rc5_freectx(void *vctx)
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{
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PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
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OPENSSL_clear_free(ctx, sizeof(*ctx));
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}
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static void *rc5_dupctx(void *ctx)
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{
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PROV_RC5_CTX *in = (PROV_RC5_CTX *)ctx;
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PROV_RC5_CTX *ret = OPENSSL_malloc(sizeof(*ret));
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if (ret == NULL) {
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ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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*ret = *in;
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return ret;
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}
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static int rc5_set_ctx_params(void *vctx, const OSSL_PARAM params[])
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{
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PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
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const OSSL_PARAM *p;
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if (!cipher_var_keylen_set_ctx_params(vctx, params))
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return 0;
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p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_ROUNDS);
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if (p != NULL) {
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unsigned int rounds;
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if (!OSSL_PARAM_get_uint(p, &rounds)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
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return 0;
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}
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if (rounds != RC5_8_ROUNDS
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&& rounds != RC5_12_ROUNDS
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&& rounds != RC5_16_ROUNDS) {
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ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_NUMBER_OF_ROUNDS);
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return 0;
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}
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ctx->rounds = rounds;
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}
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return 1;
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}
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(rc5)
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OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
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CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(rc5)
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CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(rc5)
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OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
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OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
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CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(rc5)
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static int rc5_get_ctx_params(void *vctx, OSSL_PARAM params[])
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{
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PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
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OSSL_PARAM *p;
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if (!cipher_generic_get_ctx_params(vctx, params))
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return 0;
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_ROUNDS);
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if (p != NULL && !OSSL_PARAM_set_uint(p, ctx->rounds)) {
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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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return 1;
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}
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#define IMPLEMENT_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, \
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blkbits, ivbits, typ) \
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static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \
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static int alg##_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
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{ \
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return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags, \
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kbits, blkbits, ivbits); \
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} \
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static OSSL_FUNC_cipher_newctx_fn alg##_##kbits##_##lcmode##_newctx; \
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static void * alg##_##kbits##_##lcmode##_newctx(void *provctx) \
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{ \
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PROV_##UCALG##_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); \
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if (ctx != NULL) { \
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cipher_generic_initkey(ctx, kbits, blkbits, ivbits, \
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EVP_CIPH_##UCMODE##_MODE, flags, \
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PROV_CIPHER_HW_##alg##_##lcmode(kbits), NULL); \
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ctx->rounds = RC5_12_ROUNDS; \
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} \
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return ctx; \
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} \
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const OSSL_DISPATCH alg##kbits##lcmode##_functions[] = { \
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{ OSSL_FUNC_CIPHER_NEWCTX, \
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(void (*)(void)) alg##_##kbits##_##lcmode##_newctx }, \
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{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \
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{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \
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{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit }, \
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{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit }, \
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{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))cipher_generic_##typ##_update },\
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{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))cipher_generic_##typ##_final }, \
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{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher }, \
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{ OSSL_FUNC_CIPHER_GET_PARAMS, \
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(void (*)(void)) alg##_##kbits##_##lcmode##_get_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
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(void (*)(void))cipher_generic_gettable_params }, \
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{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
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(void (*)(void))rc5_get_ctx_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
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(void (*)(void))rc5_gettable_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
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(void (*)(void))rc5_set_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
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(void (*)(void))rc5_settable_ctx_params }, \
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{ 0, NULL } \
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};
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/* rc5128ecb_functions */
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IMPLEMENT_cipher(rc5, RC5, ecb, ECB, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 0, block)
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/* rc5128cbc_functions */
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IMPLEMENT_cipher(rc5, RC5, cbc, CBC, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 64, block)
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/* rc5128ofb64_functions */
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IMPLEMENT_cipher(rc5, RC5, ofb64, OFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
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/* rc5128cfb64_functions */
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IMPLEMENT_cipher(rc5, RC5, cfb64, CFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
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