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Fixed a case when public key contained null bytes

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This commit is contained in:
Maxim Biro 2014-06-20 23:10:12 -04:00
parent b85f192b79
commit 2037d27210
1 changed files with 16 additions and 9 deletions
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25
other/fun/strkey.c
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@ -57,11 +57,11 @@ void print_key(unsigned char *key)
int main(int argc, char *argv[])
{
unsigned char public_key[crypto_box_PUBLICKEYBYTES + 1]; // null terminator
unsigned char public_key[crypto_box_PUBLICKEYBYTES]; // null terminator
unsigned char secret_key[crypto_box_SECRETKEYBYTES];
int offset = 0;
size_t len;
unsigned char desired_bin[crypto_box_PUBLICKEYBYTES + 1]; // null terminator
unsigned char desired_bin[crypto_box_PUBLICKEYBYTES]; // null terminator
if (argc == 3) {
offset = atoi(argv[1]);
@ -89,23 +89,30 @@ int main(int argc, char *argv[])
exit(1);
}
desired_bin[len/2] = '\0';
public_key[crypto_box_PUBLICKEYBYTES + 1] = '\0';
len /= 2;
#ifdef PRINT_TRIES_COUNT
long long unsigned int tries = 0;
#endif
if (offset < 0) {
int found = 0;
do {
#ifdef PRINT_TRIES_COUNT
tries ++;
tries ++;
#endif
crypto_box_keypair(public_key, secret_key);
} while (strstr(public_key, desired_bin) == 0);
int i;
for (i = 0; i <= crypto_box_PUBLICKEYBYTES - len; i ++) {
if (memcmp(public_key + i, desired_bin, len) == 0) {
found = 1;
break;
}
}
} while (!found);
} else {
unsigned char *p = public_key + offset;
len /= 2;
unsigned char *p = public_key + offset;
do {
#ifdef PRINT_TRIES_COUNT
tries ++;
@ -127,4 +134,4 @@ int main(int argc, char *argv[])
#endif
return 0;
}
}