✏ EDIT: md4.h

/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef HEADER_MD4_H
# define HEADER_MD4_H

# include <openssl/opensslconf.h>

# ifndef OPENSSL_NO_MD4
# include <openssl/e_os2.h>
# include <stddef.h>
# ifdef  __cplusplus
extern "C" {
# endif

/*-
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 * ! MD4_LONG has to be at least 32 bits wide.                     !
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 */
# define MD4_LONG unsigned int

# define MD4_CBLOCK      64
# define MD4_LBLOCK      (MD4_CBLOCK/4)
# define MD4_DIGEST_LENGTH 16

typedef struct MD4state_st {
    MD4_LONG A, B, C, D;
    MD4_LONG Nl, Nh;
    MD4_LONG data[MD4_LBLOCK];
    unsigned int num;
} MD4_CTX;

int MD4_Init(MD4_CTX *c);
int MD4_Update(MD4_CTX *c, const void *data, size_t len);
int MD4_Final(unsigned char *md, MD4_CTX *c);
unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
void MD4_Transform(MD4_CTX *c, const unsigned char *b);

# ifdef  __cplusplus
}
# endif
# endif

#endif

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