src/inc/haval.h 1.1
1.1 2009/07/27 17:55:17 kent
Adding haval, an md5 alternative.
Index: src/inc/haval.h
===================================================================
RCS file: src/inc/haval.h
diff -N src/inc/haval.h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ src/inc/haval.h 27 Jul 2009 17:55:17 -0000 1.1
@@ -0,0 +1,89 @@
+
+/* $Id$ */
+
+/*
+ * haval.h: specifies the interface to the HAVAL (V.1) hashing library.
+ *
+ * Copyright (c) 2003 Calyptix Security Corporation
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Calyptix Security
+ * Corporation by Yuliang Zheng.
+ *
+ * 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 above 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. Neither the name of Calyptix Security Corporation nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER 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.
+ *
+ * -------------------------------------------------------------------
+ *
+ * HAVAL is a one-way hashing algorithm with the following
+ * collision-resistant property:
+ * It is computationally infeasible to find two or more
+ * messages that are hashed into the same fingerprint.
+ *
+ * Reference:
+ * Y. Zheng, J. Pieprzyk and J. Seberry:
+ * ``HAVAL --- a one-way hashing algorithm with variable
+ * length of output'', Advances in Cryptology --- AUSCRYPT'92,
+ * Lecture Notes in Computer Science, Vol.718, pp.83-104,
+ * Springer-Verlag, 1993.
+ *
+ * This library provides routines to hash
+ * - a string,
+ * - a file,
+ * - input from the standard input device,
+ * - a 32-word block, and
+ * - a string of specified length.
+ *
+ * Authors: Yuliang Zheng and Lawrence Teo
+ * Calyptix Security Corporation
+ * P.O. Box 561508, Charlotte, NC 28213, USA
+ * Email: info@calyptix.com
+ * URL: http://www.calyptix.com/
+ * Voice: +1 704 806 8635
+ *
+ * For a list of changes, see the ChangeLog file.
+ */
+
+typedef unsigned long int haval_word; /* a HAVAL word = 32 bits */
+
+typedef struct {
+ haval_word count[2]; /* number of bits in a message */
+ haval_word fingerprint[8]; /* current state of fingerprint */
+ haval_word block[32]; /* buffer for a 32-word block */
+ unsigned char remainder[32*4]; /* unhashed chars (No.<128) */
+} haval_state;
+
+void haval_string (char *, unsigned char *); /* hash a string */
+int haval_file (char *, unsigned char *); /* hash a file */
+void haval_stdin (void); /* filter -- hash input from stdin */
+void haval_start (haval_state *); /* initialization */
+void haval_hash (haval_state *, unsigned char *,
+ unsigned int); /* updating routine */
+void haval_end (haval_state *, unsigned char *); /* finalization */
+void haval_hash_block (haval_state *); /* hash a 32-word block */
+
+