crypto/hash_provider/hash_kmd5.c

	hash_kmd5.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * 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.
 */

/* Solaris Kerberos:
 * this code is based on the
 * usr/src/lib/gss_mechs/mech_krb5/crypto/hash_provider/hash_md5.c
 * file, but has been modified to use the Solaris resident md5.o kernel
 * module and associated header /usr/include/sys/md5.o.
 * This means that the MD5* functions are called instead of krb5_MD5*.
 */

#include <k5-int.h>
#include <hash_provider.h>
#include <sys/crypto/api.h>


static void
k5_md5_hash_size(size_t *output)
{
    *output = MD5_CKSUM_LENGTH;
}

static void
k5_md5_block_size(size_t *output)
{
    *output = 64;
}

static krb5_error_code
k5_md5_hash(krb5_context context,
    unsigned int icount, krb5_const krb5_data *input,
    krb5_data *output)
{
    if (output->length != MD5_CKSUM_LENGTH)
    return(KRB5_CRYPTO_INTERNAL);

    if (k5_ef_hash(context, icount, input, output))
    return(KRB5_KEF_ERROR);

    return(0);
}

const struct krb5_hash_provider krb5int_hash_md5 = {
    k5_md5_hash_size,
    k5_md5_block_size,
    k5_md5_hash
};