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comparison testprof/dsa_test.c @ 280:59400faa4b44 libtomcrypt-orig libtomcrypt-1.05

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Re-import libtomcrypt 1.05 for cleaner propagating. From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 12:58:00 +0000
parents
children d5faf4814ddb
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equal deleted inserted replaced
-1:000000000000 280:59400faa4b44
1 #include <tomcrypt_test.h>
2
3 #ifdef MDSA
4
5 int dsa_test(void)
6 {
7 unsigned char msg[16], out[1024], out2[1024];
8 unsigned long x;
9 int stat1, stat2;
10 dsa_key key, key2;
11
12 /* make a random key */
13 DO(dsa_make_key(&yarrow_prng, find_prng("yarrow"), 20, 128, &key));
14
15 /* verify it */
16 DO(dsa_verify_key(&key, &stat1));
17 if (stat1 == 0) { fprintf(stderr, "dsa_verify_key "); return 1; }
18
19 /* sign the message */
20 x = sizeof(out);
21 DO(dsa_sign_hash(msg, sizeof(msg), out, &x, &yarrow_prng, find_prng("yarrow"), &key));
22
23 /* verify it once */
24 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key));
25
26 /* Modify and verify again */
27 msg[0] ^= 1;
28 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat2, &key));
29 msg[0] ^= 1;
30 if (!(stat1 == 1 && stat2 == 0)) { fprintf(stderr, "dsa_verify %d %d", stat1, stat2); return 1; }
31
32 /* test exporting it */
33 x = sizeof(out2);
34 DO(dsa_export(out2, &x, PK_PRIVATE, &key));
35 DO(dsa_import(out2, x, &key2));
36
37 /* verify a signature with it */
38 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
39 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import private) %d ", stat1); return 1; }
40 dsa_free(&key2);
41
42 /* export as public now */
43 x = sizeof(out2);
44 DO(dsa_export(out2, &x, PK_PUBLIC, &key));
45
46 DO(dsa_import(out2, x, &key2));
47 /* verify a signature with it */
48 DO(dsa_verify_hash(out, x, msg, sizeof(msg), &stat1, &key2));
49 if (stat1 == 0) { fprintf(stderr, "dsa_verify (import public) %d ", stat1); return 1; }
50 dsa_free(&key2);
51 dsa_free(&key);
52
53 return 0;
54 }
55
56 #else
57
58 int dsa_test(void)
59 {
60 fprintf(stderr, "NOP");
61 return 0;
62 }
63
64 #endif
65
66 /* $Source: /cvs/libtom/libtomcrypt/testprof/dsa_test.c,v $ */
67 /* $Revision: 1.8 $ */
68 /* $Date: 2005/06/03 19:24:32 $ */