pyrox.dev
1#include <stdint.h>
2#include <string.h>
3#include <stdio.h>
4#include <openssl/evp.h>
5
6void hextorb(uint8_t* hex, uint8_t* rb)
7{
8 while(sscanf(hex, "%2x", rb) == 1)
9 {
10 hex += 2;
11 rb += 1;
12 }
13 *rb = '\0';
14}
15
16int main(int argc, char** argv)
17{
18 uint8_t k_user[2048];
19 uint8_t salt[2048];
20 uint8_t key[4096];
21
22 uint32_t key_length = atoi(argv[1]);
23 uint32_t iteration_count = atoi(argv[2]);
24
25 hextorb(argv[3], salt);
26 uint32_t salt_length = strlen(argv[3]) / 2;
27
28 fgets(k_user, 2048, stdin);
29 uint32_t k_user_length = strlen(k_user);
30 if(k_user[k_user_length - 1] == '\n') {
31 k_user[k_user_length - 1] = '\0';
32 }
33
34 PKCS5_PBKDF2_HMAC(k_user, k_user_length, salt, salt_length, iteration_count, EVP_sha512(), key_length, key);
35 fwrite(key, 1, key_length, stdout);
36
37 return 0;
38}