Java Hash Code Calculate generateHash(char[] password, byte[] salt)

Description

generate Hash

License

Open Source License

Declaration

public static byte[] generateHash(char[] password, byte[] salt) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.security.NoSuchAlgorithmException;

import java.security.spec.InvalidKeySpecException;
import java.util.Arrays;

import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;

public class Main {
    public static final int KEY_LENGTH = 256;
    public static final int HASH_ITERATIONS = 1500;

    public static byte[] generateHash(char[] password, byte[] salt) {
        PBEKeySpec spec = new PBEKeySpec(password, salt, HASH_ITERATIONS, KEY_LENGTH);
        Arrays.fill(password, Character.MIN_VALUE);
        try {//from w  w w.  j  a v  a 2 s .c  o m
            SecretKeyFactory skf = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
            return skf.generateSecret(spec).getEncoded();
        } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
            throw new AssertionError("Error while hashing a password: " + e.getMessage(), e);
        } finally {
            spec.clearPassword();
        }
    }
}

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4. combineHashesUnsorted(final int a, final int b)
5. generateHash(byte[] data)
6. generateHash(File file)
7. generateHash(final String data)
8. generateHash(final String input)
9. generateHash(final String msg, final String hashAlgorithm)