crypto/evp/e_des3.c - third_party/openssl - Git at Google

 /* crypto/evp/e_des3.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.]
  */

 #define OPENSSL_FIPSAPI

 #include <stdio.h>
 #include "cryptlib.h"
 #ifndef OPENSSL_NO_DES
 #include <openssl/evp.h>
 #include <openssl/objects.h>
 #include "evp_locl.h"
 #include <openssl/des.h>
 #include <openssl/rand.h>

 typedef struct
 	{
 	union { double align; DES_key_schedule ks[3]; } ks;
 	union {
 		void (*cbc)(const void *,void *,size_t,const void *,void *);
 	} stream;
 	} DES_EDE_KEY;
 #define ks1 ks.ks[0]
 #define ks2 ks.ks[1]
 #define ks3 ks.ks[2]

 #if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
 /* ---------^^^ this is not a typo, just a way to detect that
  * assembler support was in general requested... */
 #include "sparc_arch.h"

 extern unsigned int OPENSSL_sparcv9cap_P[];

 #define SPARC_DES_CAPABLE	(OPENSSL_sparcv9cap_P[1] & CFR_DES)

 void	des_t4_key_expand(const void *key, DES_key_schedule *ks);
 void	des_t4_ede3_cbc_encrypt(const void *inp,void *out,size_t len,
 				DES_key_schedule *ks,unsigned char iv[8]);
 void	des_t4_ede3_cbc_decrypt(const void *inp,void *out,size_t len,
 				DES_key_schedule *ks,unsigned char iv[8]);
 #endif

 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			    const unsigned char *iv,int enc);

 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			     const unsigned char *iv,int enc);

 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);

 #define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data)

 /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */

 static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 			      const unsigned char *in, size_t inl)
 {
 	BLOCK_CIPHER_ecb_loop()
 		DES_ecb3_encrypt((const_DES_cblock *)(in + i),
 				 (DES_cblock *)(out + i),
 				 &data(ctx)->ks1, &data(ctx)->ks2,
 				 &data(ctx)->ks3,
 				 ctx->encrypt);
 	return 1;
 }

 static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 			      const unsigned char *in, size_t inl)
 {
 	while (inl>=EVP_MAXCHUNK)
 		{
 		DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
 			       &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
 			       (DES_cblock *)ctx->iv, &ctx->num);
 		inl-=EVP_MAXCHUNK;
 		in +=EVP_MAXCHUNK;
 		out+=EVP_MAXCHUNK;
 		}
 	if (inl)
 		DES_ede3_ofb64_encrypt(in, out, (long)inl,
 				&data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                                (DES_cblock *)ctx->iv, &ctx->num);

 	return 1;
 }

 static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 			      const unsigned char *in, size_t inl)
 {
 	DES_EDE_KEY *dat = data(ctx);

 #ifdef KSSL_DEBUG
 	{
         int i;
         char *cp;
 	printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len);
 	printf("\t iv= ");
         for(i=0;i<8;i++)
                 printf("%02X",ctx->iv[i]);
 	printf("\n");
 	}
 #endif    /* KSSL_DEBUG */
 	if (dat->stream.cbc)
 		{
 		(*dat->stream.cbc)(in,out,inl,&dat->ks,ctx->iv);
 		return 1;
 		}

 	while (inl>=EVP_MAXCHUNK)
 		{
 		DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
 			     &dat->ks1, &dat->ks2, &dat->ks3,
 			     (DES_cblock *)ctx->iv, ctx->encrypt);
 		inl-=EVP_MAXCHUNK;
 		in +=EVP_MAXCHUNK;
 		out+=EVP_MAXCHUNK;
 		}
 	if (inl)
 		DES_ede3_cbc_encrypt(in, out, (long)inl,
 			     &dat->ks1, &dat->ks2, &dat->ks3,
                              (DES_cblock *)ctx->iv, ctx->encrypt);
 	return 1;
 }

 static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 			      const unsigned char *in, size_t inl)
 {
 	while (inl>=EVP_MAXCHUNK)
 		{
 		DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
 			       &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
 			       (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
 		inl-=EVP_MAXCHUNK;
 		in +=EVP_MAXCHUNK;
 		out+=EVP_MAXCHUNK;
 		}
 	if (inl)
 		DES_ede3_cfb64_encrypt(in, out, (long)inl,
 			       &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                                (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
 	return 1;
 }

 /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right
    way, so wrap it here */
 static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 				const unsigned char *in, size_t inl)
     {
     size_t n;
     unsigned char c[1],d[1];

     for(n=0 ; n < inl ; ++n)
 	{
 	c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
 	DES_ede3_cfb_encrypt(c,d,1,1,
 			     &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
 			     (DES_cblock *)ctx->iv,ctx->encrypt);
 	out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) |
 		 ((d[0]&0x80) >> (unsigned int)(n%8));
 	}

     return 1;
     }

 static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 				const unsigned char *in, size_t inl)
     {
     while (inl>=EVP_MAXCHUNK)
 	{
 	DES_ede3_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,
 			 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
 			 (DES_cblock *)ctx->iv,ctx->encrypt);
 	inl-=EVP_MAXCHUNK;
 	in +=EVP_MAXCHUNK;
 	out+=EVP_MAXCHUNK;
 	}
     if (inl)
 	DES_ede3_cfb_encrypt(in,out,8,(long)inl,
 			&data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
 			(DES_cblock *)ctx->iv,ctx->encrypt);
     return 1;
     }

 BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
 			EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_DEFAULT_ASN1,
 			des_ede_init_key, NULL, NULL, NULL,
 			des3_ctrl)

 #define des_ede3_cfb64_cipher des_ede_cfb64_cipher
 #define des_ede3_ofb_cipher des_ede_ofb_cipher
 #define des_ede3_cbc_cipher des_ede_cbc_cipher
 #define des_ede3_ecb_cipher des_ede_ecb_cipher

 BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64,
 	  	EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
 		  des_ede3_init_key, NULL, NULL, NULL,
 		  des3_ctrl)

 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1,
 		EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
 			des_ede3_init_key, NULL, NULL, NULL,
 			des3_ctrl)

 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8,
 		EVP_CIPH_RAND_KEY|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
 			des_ede3_init_key, NULL, NULL, NULL,
 			des3_ctrl)

 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			    const unsigned char *iv, int enc)
 	{
 	DES_cblock *deskey = (DES_cblock *)key;
 	DES_EDE_KEY *dat = data(ctx);

 	dat->stream.cbc = NULL;
 #if defined(SPARC_DES_CAPABLE)
 	if (SPARC_DES_CAPABLE)
 		{
 		int mode = ctx->cipher->flags & EVP_CIPH_MODE;

 		if (mode == EVP_CIPH_CBC_MODE)
 			{
 			des_t4_key_expand(&deskey[0],&dat->ks1);
 			des_t4_key_expand(&deskey[1],&dat->ks2);
 			memcpy(&dat->ks3,&dat->ks1,sizeof(dat->ks1));
 			dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
 						des_t4_ede3_cbc_decrypt;
 			return 1;
 			}
 		}
 #endif
 #ifdef EVP_CHECK_DES_KEY
 	if (DES_set_key_checked(&deskey[0],&dat->ks1)
 		!! DES_set_key_checked(&deskey[1],&dat->ks2))
 		return 0;
 #else
 	DES_set_key_unchecked(&deskey[0],&dat->ks1);
 	DES_set_key_unchecked(&deskey[1],&dat->ks2);
 #endif
 	memcpy(&dat->ks3,&dat->ks1,
 	       sizeof(dat->ks1));
 	return 1;
 	}

 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			     const unsigned char *iv, int enc)
 	{
 	DES_cblock *deskey = (DES_cblock *)key;
 	DES_EDE_KEY *dat = data(ctx);

 #ifdef KSSL_DEBUG
 	{
         int i;
         printf("des_ede3_init_key(ctx=%lx)\n", ctx);
 	printf("\tKEY= ");
         for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n");
 	printf("\t IV= ");
         for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n");
 	}
 #endif	/* KSSL_DEBUG */

 	dat->stream.cbc = NULL;
 #if defined(SPARC_DES_CAPABLE)
 	if (SPARC_DES_CAPABLE)
 		{
 		int mode = ctx->cipher->flags & EVP_CIPH_MODE;

 		if (mode == EVP_CIPH_CBC_MODE)
 			{
 			des_t4_key_expand(&deskey[0],&dat->ks1);
 			des_t4_key_expand(&deskey[1],&dat->ks2);
 			des_t4_key_expand(&deskey[2],&dat->ks3);
 			dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
 						des_t4_ede3_cbc_decrypt;
 			return 1;
 			}
 		}
 #endif
 #ifdef EVP_CHECK_DES_KEY
 	if (DES_set_key_checked(&deskey[0],&dat->ks1)
 		|| DES_set_key_checked(&deskey[1],&dat->ks2)
 		|| DES_set_key_checked(&deskey[2],&dat->ks3))
 		return 0;
 #else
 	DES_set_key_unchecked(&deskey[0],&dat->ks1);
 	DES_set_key_unchecked(&deskey[1],&dat->ks2);
 	DES_set_key_unchecked(&deskey[2],&dat->ks3);
 #endif
 	return 1;
 	}

 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
 	{

 	DES_cblock *deskey = ptr;

 	switch(type)
 		{
 	case EVP_CTRL_RAND_KEY:
 		if (RAND_bytes(ptr, c->key_len) <= 0)
 			return 0;
 		DES_set_odd_parity(deskey);
 		if (c->key_len >= 16)
 			DES_set_odd_parity(deskey + 1);
 		if (c->key_len >= 24)
 			DES_set_odd_parity(deskey + 2);
 		return 1;

 	default:
 		return -1;
 		}
 	}

 const EVP_CIPHER *EVP_des_ede(void)
 {
 	return &des_ede_ecb;
 }

 const EVP_CIPHER *EVP_des_ede3(void)
 {
 	return &des_ede3_ecb;
 }

 #ifndef OPENSSL_NO_SHA

 #include <openssl/sha.h>

 static const unsigned char wrap_iv[8] = {0x4a,0xdd,0xa2,0x2c,0x79,0xe8,0x21,0x05};

 static int des_ede3_unwrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
 				const unsigned char *in, size_t inl)
 	{
 	unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH];
 	int rv = -1;
 	if (inl < 24)
 		return -1;
 	if (!out)
 		return inl - 16;
 	memcpy(ctx->iv, wrap_iv, 8);
 	/* Decrypt first block which will end up as icv */
 	des_ede_cbc_cipher(ctx, icv, in, 8);
 	/* Decrypt central blocks */
 	/* If decrypting in place move whole output along a block
 	 * so the next des_ede_cbc_cipher is in place.
 	 */
 	if (out == in)
 		{
 		memmove(out, out + 8, inl - 8);
 		in -= 8;
 		}
 	des_ede_cbc_cipher(ctx, out, in + 8, inl - 16);
 	/* Decrypt final block which will be IV */
 	des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8);
 	/* Reverse order of everything */
 	BUF_reverse(icv, NULL, 8);
 	BUF_reverse(out, NULL, inl - 16);
 	BUF_reverse(ctx->iv, iv, 8);
 	/* Decrypt again using new IV */
 	des_ede_cbc_cipher(ctx, out, out, inl - 16);
 	des_ede_cbc_cipher(ctx, icv, icv, 8);
 	/* Work out SHA1 hash of first portion */
 	SHA1(out, inl - 16, sha1tmp);

 	if (!CRYPTO_memcmp(sha1tmp, icv, 8))
 		rv = inl - 16;
 	OPENSSL_cleanse(icv, 8);
 	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
 	OPENSSL_cleanse(iv, 8);
 	OPENSSL_cleanse(ctx->iv, 8);
 	if (rv == -1)
 		OPENSSL_cleanse(out, inl - 16);

 	return rv;
 	}

 static int des_ede3_wrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
 				const unsigned char *in, size_t inl)
 	{
 	unsigned char sha1tmp[SHA_DIGEST_LENGTH];
 	if (!out)
 		return inl + 16;
 	/* Copy input to output buffer + 8 so we have space for IV */
 	memmove(out + 8, in, inl);
 	/* Work out ICV */
 	SHA1(in, inl, sha1tmp);
 	memcpy(out + inl + 8, sha1tmp, 8);
 	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
 	/* Generate random IV */
 	RAND_bytes(ctx->iv, 8);
 	memcpy(out, ctx->iv, 8);
 	/* Encrypt everything after IV in place */
 	des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8);
 	BUF_reverse(out, NULL, inl + 16);
 	memcpy(ctx->iv, wrap_iv, 8);
 	des_ede_cbc_cipher(ctx, out, out, inl + 16);
 	return inl + 16;
 	}

 static int des_ede3_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 				const unsigned char *in, size_t inl)
 	{
 	/* Sanity check input length: we typically only wrap keys
 	 * so EVP_MAXCHUNK is more than will ever be needed. Also
 	 * input length must be a multiple of 8 bits.
 	 */
 	if (inl >= EVP_MAXCHUNK || inl % 8)
 		return -1;
 	if (ctx->encrypt)
 		return des_ede3_wrap(ctx, out, in, inl);
 	else
 		return des_ede3_unwrap(ctx, out, in, inl);
 	}

 static const EVP_CIPHER des3_wrap = {
 	NID_id_smime_alg_CMS3DESwrap,
 	8, 24, 0,
 	EVP_CIPH_WRAP_MODE|EVP_CIPH_CUSTOM_IV|EVP_CIPH_FLAG_CUSTOM_CIPHER
 		|EVP_CIPH_FLAG_DEFAULT_ASN1,
 	des_ede3_init_key, des_ede3_wrap_cipher,
 	NULL,
 	sizeof(DES_EDE_KEY),
 	NULL,NULL,NULL,NULL };


 const EVP_CIPHER *EVP_des_ede3_wrap(void)
 	{
 	return &des3_wrap;
 	}

 # endif
 #endif
	/* crypto/evp/e_des3.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.]
	*/

	#define OPENSSL_FIPSAPI

	#include <stdio.h>
	#include "cryptlib.h"
	#ifndef OPENSSL_NO_DES
	#include <openssl/evp.h>
	#include <openssl/objects.h>
	#include "evp_locl.h"
	#include <openssl/des.h>
	#include <openssl/rand.h>

	typedef struct
	{
	union { double align; DES_key_schedule ks[3]; } ks;
	union {
	void (cbc)(const void ,void ,size_t,const void ,void *);
	} stream;
	} DES_EDE_KEY;
	#define ks1 ks.ks[0]
	#define ks2 ks.ks[1]
	#define ks3 ks.ks[2]

	#if defined(AES_ASM) && (defined(__sparc) \|\| defined(__sparc__))
	/* ---------^^^ this is not a typo, just a way to detect that
	* assembler support was in general requested... */
	#include "sparc_arch.h"

	extern unsigned int OPENSSL_sparcv9cap_P[];

	#define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES)

	void des_t4_key_expand(const void key, DES_key_schedule ks);
	void des_t4_ede3_cbc_encrypt(const void inp,void out,size_t len,
	DES_key_schedule *ks,unsigned char iv[8]);
	void des_t4_ede3_cbc_decrypt(const void inp,void out,size_t len,
	DES_key_schedule *ks,unsigned char iv[8]);
	#endif

	static int des_ede_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
	const unsigned char *iv,int enc);

	static int des_ede3_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
	const unsigned char *iv,int enc);

	static int des3_ctrl(EVP_CIPHER_CTX c, int type, int arg, void ptr);

	#define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data)

	/* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */

	static int des_ede_ecb_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	BLOCK_CIPHER_ecb_loop()
	DES_ecb3_encrypt((const_DES_cblock *)(in + i),
	(DES_cblock *)(out + i),
	&data(ctx)->ks1, &data(ctx)->ks2,
	&data(ctx)->ks3,
	ctx->encrypt);
	return 1;
	}

	static int des_ede_ofb_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	while (inl>=EVP_MAXCHUNK)
	{
	DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
	&data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
	(DES_cblock *)ctx->iv, &ctx->num);
	inl-=EVP_MAXCHUNK;
	in +=EVP_MAXCHUNK;
	out+=EVP_MAXCHUNK;
	}
	if (inl)
	DES_ede3_ofb64_encrypt(in, out, (long)inl,
	&data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
	(DES_cblock *)ctx->iv, &ctx->num);

	return 1;
	}

	static int des_ede_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	DES_EDE_KEY *dat = data(ctx);

	#ifdef KSSL_DEBUG
	{
	int i;
	char *cp;
	printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len);
	printf("\t iv= ");
	for(i=0;i<8;i++)
	printf("%02X",ctx->iv[i]);
	printf("\n");
	}
	#endif /* KSSL_DEBUG */
	if (dat->stream.cbc)
	{
	(*dat->stream.cbc)(in,out,inl,&dat->ks,ctx->iv);
	return 1;
	}

	while (inl>=EVP_MAXCHUNK)
	{
	DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
	&dat->ks1, &dat->ks2, &dat->ks3,
	(DES_cblock *)ctx->iv, ctx->encrypt);
	inl-=EVP_MAXCHUNK;
	in +=EVP_MAXCHUNK;
	out+=EVP_MAXCHUNK;
	}
	if (inl)
	DES_ede3_cbc_encrypt(in, out, (long)inl,
	&dat->ks1, &dat->ks2, &dat->ks3,
	(DES_cblock *)ctx->iv, ctx->encrypt);
	return 1;
	}

	static int des_ede_cfb64_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	while (inl>=EVP_MAXCHUNK)
	{
	DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
	&data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
	(DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
	inl-=EVP_MAXCHUNK;
	in +=EVP_MAXCHUNK;
	out+=EVP_MAXCHUNK;
	}
	if (inl)
	DES_ede3_cfb64_encrypt(in, out, (long)inl,
	&data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
	(DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
	return 1;
	}

	/* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right
	way, so wrap it here */
	static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	size_t n;
	unsigned char c[1],d[1];

	for(n=0 ; n < inl ; ++n)
	{
	c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
	DES_ede3_cfb_encrypt(c,d,1,1,
	&data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
	(DES_cblock *)ctx->iv,ctx->encrypt);
	out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) \|
	((d[0]&0x80) >> (unsigned int)(n%8));
	}

	return 1;
	}

	static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	while (inl>=EVP_MAXCHUNK)
	{
	DES_ede3_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,
	&data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
	(DES_cblock *)ctx->iv,ctx->encrypt);
	inl-=EVP_MAXCHUNK;
	in +=EVP_MAXCHUNK;
	out+=EVP_MAXCHUNK;
	}
	if (inl)
	DES_ede3_cfb_encrypt(in,out,8,(long)inl,
	&data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3,
	(DES_cblock *)ctx->iv,ctx->encrypt);
	return 1;
	}

	BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
	EVP_CIPH_RAND_KEY\|EVP_CIPH_FLAG_DEFAULT_ASN1,
	des_ede_init_key, NULL, NULL, NULL,
	des3_ctrl)

	#define des_ede3_cfb64_cipher des_ede_cfb64_cipher
	#define des_ede3_ofb_cipher des_ede_ofb_cipher
	#define des_ede3_cbc_cipher des_ede_cbc_cipher
	#define des_ede3_ecb_cipher des_ede_ecb_cipher

	BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64,
	EVP_CIPH_RAND_KEY\|EVP_CIPH_FLAG_FIPS\|EVP_CIPH_FLAG_DEFAULT_ASN1,
	des_ede3_init_key, NULL, NULL, NULL,
	des3_ctrl)

	BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1,
	EVP_CIPH_RAND_KEY\|EVP_CIPH_FLAG_FIPS\|EVP_CIPH_FLAG_DEFAULT_ASN1,
	des_ede3_init_key, NULL, NULL, NULL,
	des3_ctrl)

	BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8,
	EVP_CIPH_RAND_KEY\|EVP_CIPH_FLAG_FIPS\|EVP_CIPH_FLAG_DEFAULT_ASN1,
	des_ede3_init_key, NULL, NULL, NULL,
	des3_ctrl)

	static int des_ede_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
	const unsigned char *iv, int enc)
	{
	DES_cblock deskey = (DES_cblock )key;
	DES_EDE_KEY *dat = data(ctx);

	dat->stream.cbc = NULL;
	#if defined(SPARC_DES_CAPABLE)
	if (SPARC_DES_CAPABLE)
	{
	int mode = ctx->cipher->flags & EVP_CIPH_MODE;

	if (mode == EVP_CIPH_CBC_MODE)
	{
	des_t4_key_expand(&deskey[0],&dat->ks1);
	des_t4_key_expand(&deskey[1],&dat->ks2);
	memcpy(&dat->ks3,&dat->ks1,sizeof(dat->ks1));
	dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
	des_t4_ede3_cbc_decrypt;
	return 1;
	}
	}
	#endif
	#ifdef EVP_CHECK_DES_KEY
	if (DES_set_key_checked(&deskey[0],&dat->ks1)
	!! DES_set_key_checked(&deskey[1],&dat->ks2))
	return 0;
	#else
	DES_set_key_unchecked(&deskey[0],&dat->ks1);
	DES_set_key_unchecked(&deskey[1],&dat->ks2);
	#endif
	memcpy(&dat->ks3,&dat->ks1,
	sizeof(dat->ks1));
	return 1;
	}

	static int des_ede3_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
	const unsigned char *iv, int enc)
	{
	DES_cblock deskey = (DES_cblock )key;
	DES_EDE_KEY *dat = data(ctx);

	#ifdef KSSL_DEBUG
	{
	int i;
	printf("des_ede3_init_key(ctx=%lx)\n", ctx);
	printf("\tKEY= ");
	for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n");
	printf("\t IV= ");
	for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n");
	}
	#endif /* KSSL_DEBUG */

	dat->stream.cbc = NULL;
	#if defined(SPARC_DES_CAPABLE)
	if (SPARC_DES_CAPABLE)
	{
	int mode = ctx->cipher->flags & EVP_CIPH_MODE;

	if (mode == EVP_CIPH_CBC_MODE)
	{
	des_t4_key_expand(&deskey[0],&dat->ks1);
	des_t4_key_expand(&deskey[1],&dat->ks2);
	des_t4_key_expand(&deskey[2],&dat->ks3);
	dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
	des_t4_ede3_cbc_decrypt;
	return 1;
	}
	}
	#endif
	#ifdef EVP_CHECK_DES_KEY
	if (DES_set_key_checked(&deskey[0],&dat->ks1)
	\|\| DES_set_key_checked(&deskey[1],&dat->ks2)
	\|\| DES_set_key_checked(&deskey[2],&dat->ks3))
	return 0;
	#else
	DES_set_key_unchecked(&deskey[0],&dat->ks1);
	DES_set_key_unchecked(&deskey[1],&dat->ks2);
	DES_set_key_unchecked(&deskey[2],&dat->ks3);
	#endif
	return 1;
	}

	static int des3_ctrl(EVP_CIPHER_CTX c, int type, int arg, void ptr)
	{

	DES_cblock *deskey = ptr;

	switch(type)
	{
	case EVP_CTRL_RAND_KEY:
	if (RAND_bytes(ptr, c->key_len) <= 0)
	return 0;
	DES_set_odd_parity(deskey);
	if (c->key_len >= 16)
	DES_set_odd_parity(deskey + 1);
	if (c->key_len >= 24)
	DES_set_odd_parity(deskey + 2);
	return 1;

	default:
	return -1;
	}
	}

	const EVP_CIPHER *EVP_des_ede(void)
	{
	return &des_ede_ecb;
	}

	const EVP_CIPHER *EVP_des_ede3(void)
	{
	return &des_ede3_ecb;
	}

	#ifndef OPENSSL_NO_SHA

	#include <openssl/sha.h>

	static const unsigned char wrap_iv[8] = {0x4a,0xdd,0xa2,0x2c,0x79,0xe8,0x21,0x05};

	static int des_ede3_unwrap(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH];
	int rv = -1;
	if (inl < 24)
	return -1;
	if (!out)
	return inl - 16;
	memcpy(ctx->iv, wrap_iv, 8);
	/* Decrypt first block which will end up as icv */
	des_ede_cbc_cipher(ctx, icv, in, 8);
	/* Decrypt central blocks */
	/* If decrypting in place move whole output along a block
	* so the next des_ede_cbc_cipher is in place.
	*/
	if (out == in)
	{
	memmove(out, out + 8, inl - 8);
	in -= 8;
	}
	des_ede_cbc_cipher(ctx, out, in + 8, inl - 16);
	/* Decrypt final block which will be IV */
	des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8);
	/* Reverse order of everything */
	BUF_reverse(icv, NULL, 8);
	BUF_reverse(out, NULL, inl - 16);
	BUF_reverse(ctx->iv, iv, 8);
	/* Decrypt again using new IV */
	des_ede_cbc_cipher(ctx, out, out, inl - 16);
	des_ede_cbc_cipher(ctx, icv, icv, 8);
	/* Work out SHA1 hash of first portion */
	SHA1(out, inl - 16, sha1tmp);

	if (!CRYPTO_memcmp(sha1tmp, icv, 8))
	rv = inl - 16;
	OPENSSL_cleanse(icv, 8);
	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
	OPENSSL_cleanse(iv, 8);
	OPENSSL_cleanse(ctx->iv, 8);
	if (rv == -1)
	OPENSSL_cleanse(out, inl - 16);

	return rv;
	}

	static int des_ede3_wrap(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	unsigned char sha1tmp[SHA_DIGEST_LENGTH];
	if (!out)
	return inl + 16;
	/* Copy input to output buffer + 8 so we have space for IV */
	memmove(out + 8, in, inl);
	/* Work out ICV */
	SHA1(in, inl, sha1tmp);
	memcpy(out + inl + 8, sha1tmp, 8);
	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
	/* Generate random IV */
	RAND_bytes(ctx->iv, 8);
	memcpy(out, ctx->iv, 8);
	/* Encrypt everything after IV in place */
	des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8);
	BUF_reverse(out, NULL, inl + 16);
	memcpy(ctx->iv, wrap_iv, 8);
	des_ede_cbc_cipher(ctx, out, out, inl + 16);
	return inl + 16;
	}

	static int des_ede3_wrap_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
	const unsigned char *in, size_t inl)
	{
	/* Sanity check input length: we typically only wrap keys
	* so EVP_MAXCHUNK is more than will ever be needed. Also
	* input length must be a multiple of 8 bits.
	*/
	if (inl >= EVP_MAXCHUNK \|\| inl % 8)
	return -1;
	if (ctx->encrypt)
	return des_ede3_wrap(ctx, out, in, inl);
	else
	return des_ede3_unwrap(ctx, out, in, inl);
	}

	static const EVP_CIPHER des3_wrap = {
	NID_id_smime_alg_CMS3DESwrap,
	8, 24, 0,
	EVP_CIPH_WRAP_MODE\|EVP_CIPH_CUSTOM_IV\|EVP_CIPH_FLAG_CUSTOM_CIPHER
	\|EVP_CIPH_FLAG_DEFAULT_ASN1,
	des_ede3_init_key, des_ede3_wrap_cipher,
	NULL,
	sizeof(DES_EDE_KEY),
	NULL,NULL,NULL,NULL };


	const EVP_CIPHER *EVP_des_ede3_wrap(void)
	{
	return &des3_wrap;
	}

	# endif
	#endif