MD4 implementation based on code sample in RFC 1320. The appropriate

copyright notices should be present (ASF and RSA).

This patch is a modified version of one submitted by Sander Striker.

Obtained from: RFC 1320 / RSA Data Security, Inc.
Submitted by:  Sander Striker <striker@samba-tng.org>
Reviewed by:   Justin Erenkrantz (applied in a modified form)


git-svn-id: http://svn.apache.org/repos/asf/apr/apr-util/trunk@58277 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 159 insertions, 0 deletions

diff --git a/include/apr_md4.h b/include/apr_md4.h
new file mode 100644
index 00000000..342bcf0e
--- /dev/null
+++ b/include/apr_md4.h
@@ -0,0 +1,159 @@
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * 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. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" must
+ *    not be used to endorse or promote products derived from this
+ *    software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    nor may "Apache" appear in their name, without prior written
+ *    permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ * This is derived from material copyright RSA Data Security, Inc.
+ * Their notice is reproduced below in its entirety.
+ *
+ * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+ * rights reserved.
+ *
+ * License to copy and use this software is granted provided that it
+ * is identified as the "RSA Data Security, Inc. MD4 Message-Digest
+ * Algorithm" in all material mentioning or referencing this software
+ * or this function.
+ *
+ * License is also granted to make and use derivative works provided
+ * that such works are identified as "derived from the RSA Data
+ * Security, Inc. MD4 Message-Digest Algorithm" in all material
+ * mentioning or referencing the derived work.
+ *
+ * RSA Data Security, Inc. makes no representations concerning either
+ * the merchantability of this software or the suitability of this
+ * software for any particular purpose. It is provided "as is"
+ * without express or implied warranty of any kind.
+ *
+ * These notices must be retained in any copies of any part of this
+ * documentation and/or software.
+ */
+
+#ifndef APR_MD4_H
+#define APR_MD4_H
+
+#include "apu.h"
+#include "apr_xlate.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @package APR MD4 Library
+ */
+
+#define APR_MD4_DIGESTSIZE 16
+
+typedef struct apr_md4_ctx_t apr_md4_ctx_t;
+
+/** MD4 context. */
+struct apr_md4_ctx_t {
+    /** state (ABCD) */
+    apr_uint32_t state[4];
+    /** number of bits, modulo 2^64 (lsb first) */
+    apr_uint32_t count[2];
+    /** input buffer */
+    unsigned char buffer[64];
+#if APR_HAS_XLATE
+    /** translation handle */
+    apr_xlate_t *xlate;
+#endif
+};
+
+/**
+ * MD4 Initialize.  Begins an MD4 operation, writing a new context.
+ * @param context The MD4 context to initialize.
+ * @deffunc apr_status_t apr_md4_init(apr_md4_ctx_t *context)
+ */
+APU_DECLARE(apr_status_t) apr_md4_init(apr_md4_ctx_t *context);
+
+#if APR_HAS_XLATE
+/**
+ * MDr4 translation setup.  Provides the APR translation handle to be used 
+ * for translating the content before calculating the digest.
+ * @param context The MD4 content to set the translation for.
+ * @param xlate The translation handle to use for this MD4 context 
+ * @deffunc apr_status_t apr_md4_set_xlate(apr_md4_ctx_t *context, apr_xlate_t *xlate)
+ */
+APU_DECLARE(apr_status_t) apr_md4_set_xlate(apr_md4_ctx_t *context,
+                                            apr_xlate_t *xlate);
+#else
+#define apr_md4_set_xlate(context, xlate) APR_ENOTIMPL
+#endif
+
+/**
+ * MD4 block update operation.  Continue an MD4 message-digest operation, 
+ * processing another message block, and updating the context.
+ * @param context The MD4 content to update.
+ * @param input next message block to update
+ * @param inputLen The length of the next message block
+ * @deffunc apr_status_t apr_md4_update(apr_md4_ctx_t *context, apr_size_t char *input, unsigned int inputLen)
+ */
+APU_DECLARE(apr_status_t) apr_md4_update(apr_md4_ctx_t *context,
+                                         const unsigned char *input,
+                                         apr_size_t inputLen);
+
+/**
+ * MD4 finalization.  Ends an MD4 message-digest operation, writing the 
+ * message digest and zeroing the context
+ * @param digest The final MD4 digest
+ * @param context The MD4 content we are finalizing.
+ * @deffunc apr_status_t apr_md4_final(unsigned char digest[APR_MD4_DIGESTSIZE], apr_md4_ctx_t *context)
+ */
+APU_DECLARE(apr_status_t) apr_md4_final(
+                                    unsigned char digest[APR_MD4_DIGESTSIZE],
+                                    apr_md4_ctx_t *context);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !APR_MD4_H */