| 1 | /*
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| 2 | * Copyright 2019-2022 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 | /* Dispatch functions for Blowfish cipher modes ecb, cbc, ofb, cfb */
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| 11 |
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| 12 | /*
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| 13 | * BF low level APIs are deprecated for public use, but still ok for internal
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| 14 | * use.
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| 15 | */
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| 16 | #include "internal/deprecated.h"
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| 17 |
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| 18 | #include "cipher_blowfish.h"
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| 19 | #include "prov/implementations.h"
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| 20 | #include "prov/providercommon.h"
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| 21 |
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| 22 | #define BF_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH
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| 23 |
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| 24 | static OSSL_FUNC_cipher_freectx_fn blowfish_freectx;
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| 25 | static OSSL_FUNC_cipher_dupctx_fn blowfish_dupctx;
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| 26 |
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| 27 | static void blowfish_freectx(void *vctx)
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| 28 | {
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| 29 | PROV_BLOWFISH_CTX *ctx = (PROV_BLOWFISH_CTX *)vctx;
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| 30 |
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| 31 | ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
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| 32 | OPENSSL_clear_free(ctx, sizeof(*ctx));
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| 33 | }
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| 34 |
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| 35 | static void *blowfish_dupctx(void *ctx)
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| 36 | {
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| 37 | PROV_BLOWFISH_CTX *in = (PROV_BLOWFISH_CTX *)ctx;
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| 38 | PROV_BLOWFISH_CTX *ret;
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| 39 |
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| 40 | if (!ossl_prov_is_running())
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| 41 | return NULL;
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| 42 |
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| 43 | ret = OPENSSL_malloc(sizeof(*ret));
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| 44 | if (ret == NULL) {
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| 45 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
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| 46 | return NULL;
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| 47 | }
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| 48 | *ret = *in;
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| 49 |
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| 50 | return ret;
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| 51 | }
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| 52 |
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| 53 | /* bf_ecb_functions */
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| 54 | IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, ecb, ECB, BF_FLAGS, 128, 64, 0, block)
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| 55 | /* bf_cbc_functions */
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| 56 | IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, cbc, CBC, BF_FLAGS, 128, 64, 64, block)
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| 57 | /* bf_ofb_functions */
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| 58 | IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, ofb64, OFB, BF_FLAGS, 128, 8, 64, stream)
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| 59 | /* bf_cfb_functions */
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| 60 | IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, cfb64, CFB, BF_FLAGS, 128, 8, 64, stream)
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