@Test
public void check() {
String hashed = SCryptUtil.scrypt(passwd, 16384, 8, 1);
assertTrue(SCryptUtil.check(passwd, hashed));
assertFalse(SCryptUtil.check("s3cr3t", hashed));
String hashed2 = SCryptUtil.scryptRuby(passwd, 16384, 8, 1);
assertTrue(SCryptUtil.check(passwd, hashed2));
assertFalse(SCryptUtil.check("s3cr3t", hashed2));
// Test with an example from the Ruby scrypt project
String preHashed =
"400$8$36$78f4ae6983f76119$37ec6ce55a2b928dc56ff9a7d0cdafbd7dbde49d9282c38a40b1434e88f24cf5";
assertTrue(SCryptUtil.check("my grand secret", preHashed));
}
@Test
public void scryptRuby() {
int N = 1024;
int r = 8;
int p = 1;
String hashed = SCryptUtil.scryptRuby(passwd, N, r, p);
String[] parts = hashed.split("\\$");
assertEquals(5, parts.length);
try {
assertEquals(8, Hex.decodeHex(parts[3].toCharArray()).length);
assertEquals(32, Hex.decodeHex(parts[4].toCharArray()).length);
} catch (DecoderException e) {
fail("There was an exception decoding the hashed value: \n" + e.getMessage());
}
assertEquals(N, Integer.parseInt(parts[0], 16));
assertEquals(r, Integer.parseInt(parts[1], 16));
assertEquals(p, Integer.parseInt(parts[2], 16));
}