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57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
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/*
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* Copyright 2019 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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#include "cipher_idea.h"
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static int cipher_hw_idea_initkey(PROV_CIPHER_CTX *ctx,
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const unsigned char *key, size_t keylen)
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{
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PROV_IDEA_CTX *ictx = (PROV_IDEA_CTX *)ctx;
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IDEA_KEY_SCHEDULE *ks = &(ictx->ks.ks);
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if (ctx->enc
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|| ctx->mode == EVP_CIPH_OFB_MODE
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|| ctx->mode == EVP_CIPH_CFB_MODE) {
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IDEA_set_encrypt_key(key, ks);
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} else {
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IDEA_KEY_SCHEDULE tmp;
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IDEA_set_encrypt_key(key, &tmp);
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IDEA_set_decrypt_key(&tmp, ks);
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OPENSSL_cleanse((unsigned char *)&tmp, sizeof(IDEA_KEY_SCHEDULE));
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}
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return 1;
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}
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# define PROV_CIPHER_HW_idea_mode_ex(mode, UCMODE, fname) \
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IMPLEMENT_CIPHER_HW_##UCMODE(mode, idea, PROV_IDEA_CTX, IDEA_KEY_SCHEDULE, \
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fname) \
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static const PROV_CIPHER_HW idea_##mode = { \
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cipher_hw_idea_initkey, \
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cipher_hw_idea_##mode##_cipher \
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}; \
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const PROV_CIPHER_HW *PROV_CIPHER_HW_idea_##mode(size_t keybits) \
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{ \
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return &idea_##mode; \
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}
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# define PROV_CIPHER_HW_idea_mode(mode, UCMODE) \
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PROV_CIPHER_HW_idea_mode_ex(mode, UCMODE, IDEA_##mode)
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PROV_CIPHER_HW_idea_mode(cbc, CBC)
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PROV_CIPHER_HW_idea_mode(ofb64, OFB)
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PROV_CIPHER_HW_idea_mode(cfb64, CFB)
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/*
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* IDEA_ecb_encrypt() does not have a enc parameter - so we create a macro
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* that ignores this parameter when IMPLEMENT_CIPHER_HW_ecb() is called.
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*/
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#define IDEA2_ecb_encrypt(in, out, ks, enc) IDEA_ecb_encrypt(in, out, ks)
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PROV_CIPHER_HW_idea_mode_ex(ecb, ECB, IDEA2_ecb)
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