| /* |
| * Copyright 2019-2021 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 |
| */ |
| |
| /* |
| * CAST low level APIs are deprecated for public use, but still ok for |
| * internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| /* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */ |
| |
| #include <openssl/proverr.h> |
| #include "cipher_cast.h" |
| #include "prov/implementations.h" |
| #include "prov/providercommon.h" |
| |
| #define CAST5_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH |
| |
| static OSSL_FUNC_cipher_freectx_fn cast5_freectx; |
| static OSSL_FUNC_cipher_dupctx_fn cast5_dupctx; |
| |
| static void cast5_freectx(void *vctx) |
| { |
| PROV_CAST_CTX *ctx = (PROV_CAST_CTX *)vctx; |
| |
| ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx); |
| OPENSSL_clear_free(ctx, sizeof(*ctx)); |
| } |
| |
| static void *cast5_dupctx(void *ctx) |
| { |
| PROV_CAST_CTX *in = (PROV_CAST_CTX *)ctx; |
| PROV_CAST_CTX *ret; |
| |
| if (!ossl_prov_is_running()) |
| return NULL; |
| |
| ret = OPENSSL_malloc(sizeof(*ret)); |
| if (ret == NULL) { |
| ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| *ret = *in; |
| |
| return ret; |
| } |
| |
| /* ossl_cast5128ecb_functions */ |
| IMPLEMENT_var_keylen_cipher(cast5, CAST, ecb, ECB, CAST5_FLAGS, 128, 64, 0, block) |
| /* ossl_cast5128cbc_functions */ |
| IMPLEMENT_var_keylen_cipher(cast5, CAST, cbc, CBC, CAST5_FLAGS, 128, 64, 64, block) |
| /* ossl_cast5128ofb64_functions */ |
| IMPLEMENT_var_keylen_cipher(cast5, CAST, ofb64, OFB, CAST5_FLAGS, 128, 8, 64, stream) |
| /* ossl_cast5128cfb64_functions */ |
| IMPLEMENT_var_keylen_cipher(cast5, CAST, cfb64, CFB, CAST5_FLAGS, 128, 8, 64, stream) |