ssl/libcrypto/src/crypto/evp/e_xcbc_d.c
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/evp/e_xcbc_d.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,125 @@
+/* crypto/evp/e_xcbc_d.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.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+
+#ifndef OPENSSL_NO_DES
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/des.h>
+
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+			     const unsigned char *iv,int enc);
+static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+			   const unsigned char *in, unsigned int inl);
+
+
+typedef struct
+    {
+    DES_key_schedule ks;/* key schedule */
+    DES_cblock inw;
+    DES_cblock outw;
+    } DESX_CBC_KEY;
+
+#define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data)
+
+static const EVP_CIPHER d_xcbc_cipher=
+	{
+	NID_desx_cbc,
+	8,24,8,
+	EVP_CIPH_CBC_MODE,
+	desx_cbc_init_key,
+	desx_cbc_cipher,
+	NULL,
+	sizeof(DESX_CBC_KEY),
+	EVP_CIPHER_set_asn1_iv,
+	EVP_CIPHER_get_asn1_iv,
+	NULL,
+	NULL
+	};
+
+EXPORT_C const EVP_CIPHER *EVP_desx_cbc(void)
+	{
+	return(&d_xcbc_cipher);
+	}
+	
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+			     const unsigned char *iv, int enc)
+	{
+	DES_cblock *deskey = (DES_cblock *)key;
+
+	DES_set_key_unchecked(deskey,&data(ctx)->ks);
+	memcpy(&data(ctx)->inw[0],&key[8],8);
+	memcpy(&data(ctx)->outw[0],&key[16],8);
+
+	return 1;
+	}
+
+static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+			   const unsigned char *in, unsigned int inl)
+	{
+	DES_xcbc_encrypt(in,out,inl,&data(ctx)->ks,
+			 (DES_cblock *)&(ctx->iv[0]),
+			 &data(ctx)->inw,
+			 &data(ctx)->outw,
+			 ctx->encrypt);
+	return 1;
+	}
+#endif