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
|
#include <stdio.h>
#include <stdlib.h>
#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(n,crypto_box_NONCEBYTES);
randombytes(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;
}
|
