1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /*
3 * Copyright (C) 1998 by the FundsXpress, INC.
4 *
5 * All rights reserved.
6 *
7 * Export of this software from the United States of America may require
8 * a specific license from the United States Government. It is the
9 * responsibility of any person or organization contemplating export to
10 * obtain such a license before exporting.
11 *
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of FundsXpress. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. FundsXpress makes no representations about the suitability of
20 * this software for any purpose. It is provided "as is" without express
21 * or implied warranty.
22 *
23 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
25 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
26 */
27
28 #include "crypto_int.h"
29 #include "rsa-md4.h"
30
31 #ifdef K5_BUILTIN_MD4
32
33 static krb5_error_code
k5_md4_hash(const krb5_crypto_iov * data,size_t num_data,krb5_data * output)34 k5_md4_hash(const krb5_crypto_iov *data, size_t num_data, krb5_data *output)
35 {
36 krb5_MD4_CTX ctx;
37 unsigned int i;
38
39 if (output->length != RSA_MD4_CKSUM_LENGTH)
40 return(KRB5_CRYPTO_INTERNAL);
41
42 krb5int_MD4Init(&ctx);
43 for (i = 0; i < num_data; i++) {
44 const krb5_crypto_iov *iov = &data[i];
45
46 if (SIGN_IOV(iov)) {
47 krb5int_MD4Update(&ctx, (unsigned char *) iov->data.data,
48 iov->data.length);
49 }
50 }
51 krb5int_MD4Final(&ctx);
52
53 memcpy(output->data, ctx.digest, RSA_MD4_CKSUM_LENGTH);
54
55 return(0);
56 }
57
58 const struct krb5_hash_provider krb5int_hash_md4 = {
59 "MD4",
60 RSA_MD4_CKSUM_LENGTH,
61 64,
62 k5_md4_hash
63 };
64
65 #endif /* K5_BUILTIN_MD4 */
66