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-rw-r--r--nacl/crypto_verify/try.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/nacl/crypto_verify/try.c b/nacl/crypto_verify/try.c
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1/*
2 * crypto_verify/try.c version 20090118
3 * D. J. Bernstein
4 * Public domain.
5 */
6
7#include <stdlib.h>
8#include "crypto_verify.h"
9
10extern unsigned char *alignedcalloc(unsigned long long);
11
12const char *primitiveimplementation = crypto_verify_IMPLEMENTATION;
13
14static unsigned char *x;
15static unsigned char *y;
16
17void preallocate(void)
18{
19}
20
21void allocate(void)
22{
23 x = alignedcalloc(crypto_verify_BYTES);
24 y = alignedcalloc(crypto_verify_BYTES);
25}
26
27void predoit(void)
28{
29}
30
31void doit(void)
32{
33 crypto_verify(x,y);
34}
35
36static const char *check(void)
37{
38 int r = crypto_verify(x,y);
39 if (r == 0) {
40 if (memcmp(x,y,crypto_verify_BYTES)) return "different strings pass verify";
41 } else if (r == -1) {
42 if (!memcmp(x,y,crypto_verify_BYTES)) return "equal strings fail verify";
43 } else {
44 return "weird return value from verify";
45 }
46 return 0;
47}
48
49char checksum[2];
50
51const char *checksum_compute(void)
52{
53 long long tests;
54 long long i;
55 long long j;
56 const char *c;
57
58 for (tests = 0;tests < 100000;++tests) {
59 for (i = 0;i < crypto_verify_BYTES;++i) x[i] = random();
60 for (i = 0;i < crypto_verify_BYTES;++i) y[i] = random();
61 c = check(); if (c) return c;
62 for (i = 0;i < crypto_verify_BYTES;++i) y[i] = x[i];
63 c = check(); if (c) return c;
64 y[random() % crypto_verify_BYTES] = random();
65 c = check(); if (c) return c;
66 y[random() % crypto_verify_BYTES] = random();
67 c = check(); if (c) return c;
68 y[random() % crypto_verify_BYTES] = random();
69 c = check(); if (c) return c;
70 }
71
72 checksum[0] = '0';
73 checksum[1] = 0;
74 return 0;
75}