1 /* hashlen.c: The opiehashlen() library function.
4 This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved.
5 The Inner Net License Version 3 applies to this software.
6 You should have received a copy of the license with this software. If
7 you didn't get a copy, you may request one from <license@inner.net>.
11 Modified by cmetz for OPIE 2.4. Use struct opie_otpkey, isolate variables.
12 Created by cmetz for OPIE 2.3.
17 #include <sys/endian.h>
26 VOIDRET opiehashlen FUNCTION((algorithm, in, out, n), int algorithm AND
27 VOIDPTR in AND struct opie_otpkey *out AND int n)
29 UINT4 *results = (UINT4 *)out;
37 SHA1_Update(&sha, (unsigned char *)in, n);
38 SHA1_Final((unsigned char *)digest, &sha);
39 results[0] = digest[0] ^ digest[2] ^ digest[4];
40 results[1] = digest[1] ^ digest[3];
43 * RFC2289 mandates that we convert SHA1 digest from big-endian to little
46 results[0] = bswap32(results[0]);
47 results[1] = bswap32(results[1]);
53 MD4Update(&mdx, (unsigned char *)in, n);
54 MD4Final((unsigned char *)mdx_tmp, &mdx);
55 results[0] = mdx_tmp[0] ^ mdx_tmp[2];
56 results[1] = mdx_tmp[1] ^ mdx_tmp[3];
62 MD5Update(&mdx, (unsigned char *)in, n);
63 MD5Final((unsigned char *)mdx_tmp, &mdx);
64 results[0] = mdx_tmp[0] ^ mdx_tmp[2];
65 results[1] = mdx_tmp[1] ^ mdx_tmp[3];