Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 148 insertions, 0 deletions

diff --git a/crypto/bf/bf_cbc.c b/crypto/bf/bf_cbc.c
new file mode 100644
index 0000000000..3d05d27cf1
--- /dev/null
+++ b/crypto/bf/bf_cbc.c
@@ -0,0 +1,148 @@
+/* crypto/bf/bf_cbc.c */
+/* Copyright (C) 1995-1997 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 "blowfish.h"
+#include "bf_locl.h"
+
+void BF_cbc_encrypt(in, out, length, ks, iv, encrypt)
+unsigned char *in;
+unsigned char *out;
+long length;
+BF_KEY *ks;
+unsigned char *iv;
+int encrypt;
+	{
+	register BF_LONG tin0,tin1;
+	register BF_LONG tout0,tout1,xor0,xor1;
+	register long l=length;
+	BF_LONG tin[2];
+
+	if (encrypt)
+		{
+		n2l(iv,tout0);
+		n2l(iv,tout1);
+		iv-=8;
+		for (l-=8; l>=0; l-=8)
+			{
+			n2l(in,tin0);
+			n2l(in,tin1);
+			tin0^=tout0;
+			tin1^=tout1;
+			tin[0]=tin0;
+			tin[1]=tin1;
+			BF_encrypt(tin,ks,BF_ENCRYPT);
+			tout0=tin[0];
+			tout1=tin[1];
+			l2n(tout0,out);
+			l2n(tout1,out);
+			}
+		if (l != -8)
+			{
+			n2ln(in,tin0,tin1,l+8);
+			tin0^=tout0;
+			tin1^=tout1;
+			tin[0]=tin0;
+			tin[1]=tin1;
+			BF_encrypt(tin,ks,BF_ENCRYPT);
+			tout0=tin[0];
+			tout1=tin[1];
+			l2n(tout0,out);
+			l2n(tout1,out);
+			}
+		l2n(tout0,iv);
+		l2n(tout1,iv);
+		}
+	else
+		{
+		n2l(iv,xor0);
+		n2l(iv,xor1);
+		iv-=8;
+		for (l-=8; l>=0; l-=8)
+			{
+			n2l(in,tin0);
+			n2l(in,tin1);
+			tin[0]=tin0;
+			tin[1]=tin1;
+			BF_encrypt(tin,ks,BF_DECRYPT);
+			tout0=tin[0]^xor0;
+			tout1=tin[1]^xor1;
+			l2n(tout0,out);
+			l2n(tout1,out);
+			xor0=tin0;
+			xor1=tin1;
+			}
+		if (l != -8)
+			{
+			n2l(in,tin0);
+			n2l(in,tin1);
+			tin[0]=tin0;
+			tin[1]=tin1;
+			BF_encrypt(tin,ks,BF_DECRYPT);
+			tout0=tin[0]^xor0;
+			tout1=tin[1]^xor1;
+			l2nn(tout0,tout1,out,l+8);
+			xor0=tin0;
+			xor1=tin1;
+			}
+		l2n(xor0,iv);
+		l2n(xor1,iv);
+		}
+	tin0=tin1=tout0=tout1=xor0=xor1=0;
+	tin[0]=tin[1]=0;
+	}
+