I am trying to test PBE encryption/decryption. I found that PBE generates same key with different salt and iteration count. Of course, the password used is same. As what I understand, same password and different salt/iteration should get different keys. Below is my test code:
import java.security.Key;
import java.security.SecureRandom;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
public class PBETest
{
public static void main(String[] args)
throws Exception
{
String algo = "PBEWithSHA1andDESede";
System.out.println("====== " + algo + " ======");
char[] password = "password".toCharArray();
SecureRandom rand = new SecureRandom();
byte[] salt = new byte[32];
rand.nextBytes(salt);
int iterationCount = rand.nextInt(2048);
//encryption key
PBEKeySpec encPBESpec = new PBEKeySpec(password, salt, iterationCount);
SecretKeyFactory encKeyFact = SecretKeyFactory.getInstance(algo);
Key encKey = encKeyFact.generateSecret(encPBESpec);
System.out.println("encryptioin iteration: " + iterationCount);
//decryption key
rand.nextBytes(salt);
iterationCount = rand.nextInt(2048);
PBEKeySpec decPBESpec = new PBEKeySpec(password, salt, iterationCount);
SecretKeyFactory decKeyFact = SecretKeyFactory.getInstance(algo);
Key decKey = decKeyFact.generateSecret(decPBESpec);
System.out.println("decryptioin iteration: " + iterationCount);
System.out.println("encryption key is same as decryption key? " + encKey.equals(decKey));
}
}
I am expecting the final output is a false.
Did I do anything wrong?