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/* Copyright 2001-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* 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"
/**
* @file apr_md4.h
* @brief APR-UTIL MD4 Library
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup APR_Util_MD4 MD4 Library
* @ingroup APR_Util
* @{
*/
/** The digestsize for MD4 */
#define APR_MD4_DIGESTSIZE 16
/** @see apr_md4_ctx_t */
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.
*/
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
*/
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
*/
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.
*/
APU_DECLARE(apr_status_t) apr_md4_final(
unsigned char digest[APR_MD4_DIGESTSIZE],
apr_md4_ctx_t *context);
/**
* MD4 digest computation
* @param digest The MD4 digest
* @param input message block to use
* @param inputLen The length of the message block
*/
APU_DECLARE(apr_status_t) apr_md4(unsigned char digest[APR_MD4_DIGESTSIZE],
const unsigned char *input,
apr_size_t inputLen);
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* !APR_MD4_H */
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