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Viewing changes to crypto/evp/e_des3.c

  • Committer: Bazaar Package Importer
  • Author(s): Christoph Martin
  • Date: 2004-12-16 18:41:29 UTC
  • mto: (11.1.1 lenny)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20041216184129-z7xjkul57mh1jiha
Tags: upstream-0.9.7e
Import upstream version 0.9.7e

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crypto/evp/e_des3.c
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 * [including the GNU Public Licence.]
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 */
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#ifndef OPENSSL_NO_DES
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#include <stdio.h>
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#include "cryptlib.h"
 
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#ifndef OPENSSL_NO_DES
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#include <openssl/evp.h>
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#include <openssl/objects.h>
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#include "evp_locl.h"
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                              const unsigned char *in, unsigned int inl)
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{
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        BLOCK_CIPHER_ecb_loop()
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                DES_ecb3_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), 
 
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                DES_ecb3_encrypt(in + i,out + i, 
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                                 &data(ctx)->ks1, &data(ctx)->ks2,
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                                 &data(ctx)->ks3,
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                                 ctx->encrypt);
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        return 1;
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}
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static int des_ede_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 
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static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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                              const unsigned char *in, unsigned int inl)
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{
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        DES_ede3_cfb64_encrypt(in, out, (long)inl, 
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        return 1;
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}
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/* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right
 
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   way, so wrap it here */
 
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static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 
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                                const unsigned char *in, unsigned int inl)
 
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    {
 
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    unsigned int n;
 
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    unsigned char c[1],d[1];
 
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    for(n=0 ; n < inl ; ++n)
 
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        {
 
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        c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
 
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        DES_ede3_cfb_encrypt(c,d,1,1,
 
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                             &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
 
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                             (DES_cblock *)ctx->iv,ctx->encrypt);
 
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        out[n/8]=(out[n/8]&~(0x80 >> (n%8)))|((d[0]&0x80) >> (n%8));
 
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        }
 
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    return 1;
 
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    }
 
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static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 
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                                const unsigned char *in, unsigned int inl)
 
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    {
 
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    DES_ede3_cfb_encrypt(in,out,8,inl,
 
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                         &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
 
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                         (DES_cblock *)ctx->iv,ctx->encrypt);
 
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    return 1;
 
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    }
 
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BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
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                        0, des_ede_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 des_ede3_cfb_cipher des_ede_cfb_cipher
 
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#define des_ede3_cfb64_cipher des_ede_cfb64_cipher
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#define des_ede3_ofb_cipher des_ede_ofb_cipher
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#define des_ede3_cbc_cipher des_ede_cbc_cipher
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#define des_ede3_ecb_cipher des_ede_ecb_cipher
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                        EVP_CIPHER_get_asn1_iv,
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                        NULL)
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BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1,0,
 
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                     des_ede3_init_key,NULL,
 
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                     EVP_CIPHER_set_asn1_iv,
 
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                     EVP_CIPHER_get_asn1_iv,NULL)
 
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BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8,0,
 
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                     des_ede3_init_key,NULL,
 
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                     EVP_CIPHER_set_asn1_iv,
 
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                     EVP_CIPHER_get_asn1_iv,NULL)
 
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static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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                            const unsigned char *iv, int enc)
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        {