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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 1998 by the FundsXpress, INC.
*
* All rights reserved.
*
* Export of this software from the United States of America may require
* a specific license from the United States Government. It is the
* responsibility of any person or organization contemplating export to
* obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of FundsXpress. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. FundsXpress makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "crypto_int.h"
#include <openssl/evp.h>
#include <openssl/md4.h>
static krb5_error_code
k5_md4_hash(const krb5_crypto_iov *data, size_t num_data, krb5_data *output)
{
EVP_MD_CTX ctx;
unsigned int i;
if (output->length != MD4_DIGEST_LENGTH)
return KRB5_CRYPTO_INTERNAL;
EVP_MD_CTX_init(&ctx);
EVP_DigestInit_ex(&ctx, EVP_md4(), NULL);
for (i = 0; i < num_data; i++) {
const krb5_data *d = &data[i].data;
if (SIGN_IOV(&data[i]))
EVP_DigestUpdate(&ctx, (unsigned char *)d->data, d->length);
}
EVP_DigestFinal_ex(&ctx, (unsigned char *)output->data, NULL);
EVP_MD_CTX_cleanup(&ctx);
return 0;
}
const struct krb5_hash_provider krb5int_hash_md4 = {
"MD4",
MD4_DIGEST_LENGTH,
64,
k5_md4_hash
};
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