1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
#include "windows/windows-quirks.h"
#define TEST_NAME "box8"
#include "cmptest.h"
unsigned char alicesk[crypto_box_SECRETKEYBYTES];
unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
unsigned char bobsk[crypto_box_SECRETKEYBYTES];
unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
unsigned char n[crypto_box_NONCEBYTES];
unsigned char m[10000];
unsigned char c[10000];
unsigned char m2[10000];
int main(void)
{
size_t mlen;
size_t i;
int caught;
for (mlen = 0; mlen < 1000 && mlen + crypto_box_ZEROBYTES < sizeof m;
++mlen) {
crypto_box_keypair(alicepk, alicesk);
crypto_box_keypair(bobpk, bobsk);
randombytes_buf(n, crypto_box_NONCEBYTES);
randombytes_buf(m + crypto_box_ZEROBYTES, mlen);
crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);
caught = 0;
while (caught < 10) {
c[rand() % (mlen + crypto_box_ZEROBYTES)] = rand();
if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,
bobsk) == 0) {
for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {
if (m2[i] != m[i]) {
printf("forgery\n");
return 100;
}
}
} else {
++caught;
}
}
}
return 0;
}
|
