text: /* crypto/evp/e_ecb_3d.c */
  /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   * All rights reserved.
   *
   * This package is an SSL implementation written
   * by Eric Young (eay@cryptsoft.com).
   * The implementation was written so as to conform with Netscapes SSL.
   * 
   * This library is free for commercial and non-commercial use as long as
   * the following conditions are aheared to.  The following conditions
   * apply to all code found in this distribution, be it the RC4, RSA,
   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   * included with this distribution is covered by the same copyright terms
   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   * 
   * Copyright remains Eric Young's, and as such any Copyright notices in
   * the code are not to be removed.
   * If this package is used in a product, Eric Young should be given attribution
   * as the author of the parts of the library used.
   * This can be in the form of a textual message at program startup or
   * in documentation (online or textual) provided with the package.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    "This product includes cryptographic software written by
   *     Eric Young (eay@cryptsoft.com)"
   *    The word 'cryptographic' can be left out if the rouines from the library
   *    being used are not cryptographic related :-).
   * 4. If you include any Windows specific code (or a derivative thereof) from 
   *    the apps directory (application code) you must include an acknowledgement:
   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   * 
   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * 
   * The licence and distribution terms for any publically available version or
   * derivative of this code cannot be changed.  i.e. this code cannot simply be
   * copied and put under another distribution licence
   * [including the GNU Public Licence.]
   */
  
  #ifndef NO_DES
  #include <stdio.h>
  #include "cryptlib.h"
  #include <openssl/evp.h>
  #include <openssl/objects.h>
  
  static void des_ede_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
  	unsigned char *iv,int enc);
  static void des_ede3_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
  	unsigned char *iv,int enc);
  static void des_ede_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
  	unsigned char *in, unsigned int inl);
  static EVP_CIPHER d_ede_cipher2=
  	{
  	NID_des_ede,
  	8,16,0,
  	des_ede_init_key,
  	des_ede_cipher,
  	NULL,
  	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
  		sizeof((((EVP_CIPHER_CTX *)NULL)->c.des_ede)),
  	NULL,
  	NULL,
  	};
  
  static EVP_CIPHER d_ede3_cipher3=
  	{
  	NID_des_ede3,
  	8,24,0,
  	des_ede3_init_key,
  	des_ede_cipher,
  	NULL,
  	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
  		sizeof((((EVP_CIPHER_CTX *)NULL)->c.des_ede)),
  	NULL,
  	};
  
  EVP_CIPHER *EVP_des_ede(void)
  	{
  	return(&d_ede_cipher2);
  	}
  
  EVP_CIPHER *EVP_des_ede3(void)
  	{
  	return(&d_ede3_cipher3);
  	}
  
  static void des_ede_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
  	     unsigned char *iv, int enc)
  	{
  	des_cblock *deskey = (des_cblock *)key;
  
  	if (deskey != NULL)
  		{
  		des_set_key(&deskey[0],ctx->c.des_ede.ks1);
  		des_set_key(&deskey[1],ctx->c.des_ede.ks2);
  		memcpy( (char *)ctx->c.des_ede.ks3,
  			(char *)ctx->c.des_ede.ks1,
  			sizeof(ctx->c.des_ede.ks1));
  		}
  	}
  
  static void des_ede3_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
  	     unsigned char *iv, int enc)
  	{
  	des_cblock *deskey = (des_cblock *)key;
  
  	if (deskey != NULL)
  		{
  		des_set_key(&deskey[0],ctx->c.des_ede.ks1);
  		des_set_key(&deskey[1],ctx->c.des_ede.ks2);
  		des_set_key(&deskey[2],ctx->c.des_ede.ks3);
  		}
  	}
  
  static void des_ede_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
  	     unsigned char *in, unsigned int inl)
  	{
  	unsigned int i;
  	des_cblock *output   /* = (des_cblock *)out */;
  	des_cblock *input    /* = (des_cblock *)in */;
  
  	if (inl < 8) return;
  	inl-=8;
  	for (i=0; i<=inl; i+=8)
  		{
  		output = (des_cblock *)(out + i);
  		input = (des_cblock *)(in + i);
  
  		des_ecb3_encrypt(input,output,
  			ctx->c.des_ede.ks1,
  			ctx->c.des_ede.ks2,
  			ctx->c.des_ede.ks3,
  			ctx->encrypt);
  
  		/* output++; */
  		/* input++; */
  		}
  	}
  #endif
  