Camellia cipher, contributed by NTT
Submitted by: Masashi Fujita Reviewed by: Bodo Moeller
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crypto/evp/e_camellia.c
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125
crypto/evp/e_camellia.c
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/* crypto/evp/e_camellia.c -*- mode:C; c-file-style: "eay" -*- */
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/* ====================================================================
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* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_CAMELLIA
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#include <openssl/evp.h>
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#include <openssl/err.h>
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#include <string.h>
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#include <assert.h>
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#include <openssl/camellia.h>
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#include "evp_locl.h"
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static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc);
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/* Camellia subkey Structure */
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typedef struct
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{
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CAMELLIA_KEY ks;
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} EVP_CAMELLIA_KEY;
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/* Attribute operation for Camellia */
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#define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
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IMPLEMENT_BLOCK_CIPHER(camellia_128, ks, Camellia, EVP_CAMELLIA_KEY,
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NID_camellia_128, 16, 16, 16, 128,
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0, camellia_init_key, NULL,
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EVP_CIPHER_set_asn1_iv,
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EVP_CIPHER_get_asn1_iv,
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NULL)
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IMPLEMENT_BLOCK_CIPHER(camellia_192, ks, Camellia, EVP_CAMELLIA_KEY,
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NID_camellia_192, 16, 24, 16, 128,
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0, camellia_init_key, NULL,
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EVP_CIPHER_set_asn1_iv,
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EVP_CIPHER_get_asn1_iv,
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NULL)
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IMPLEMENT_BLOCK_CIPHER(camellia_256, ks, Camellia, EVP_CAMELLIA_KEY,
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NID_camellia_256, 16, 32, 16, 128,
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0, camellia_init_key, NULL,
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EVP_CIPHER_set_asn1_iv,
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EVP_CIPHER_get_asn1_iv,
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NULL)
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#define IMPLEMENT_CAMELLIA_CFBR(ksize,cbits) IMPLEMENT_CFBR(camellia,Camellia,EVP_CAMELLIA_KEY,ks,ksize,cbits,16)
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IMPLEMENT_CAMELLIA_CFBR(128,1)
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IMPLEMENT_CAMELLIA_CFBR(192,1)
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IMPLEMENT_CAMELLIA_CFBR(256,1)
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IMPLEMENT_CAMELLIA_CFBR(128,8)
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IMPLEMENT_CAMELLIA_CFBR(192,8)
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IMPLEMENT_CAMELLIA_CFBR(256,8)
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/* The subkey for Camellia is generated. */
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static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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int ret;
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ret=Camellia_set_key(key, ctx->key_len * 8, ctx->cipher_data);
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if(ret < 0)
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{
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EVPerr(EVP_F_CAMELLIA_INIT_KEY,EVP_R_CAMELLIA_KEY_SETUP_FAILED);
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return 0;
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}
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return 1;
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}
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#endif
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