Java

PBKDF2 - Derive Key from Password

See more Encryption Examples

Demonstrates how to derive a symmetric encryption key from a password using PBKDF2. Chilkat2 Java

import com.chilkatsoft.chilkat2.Crypt2;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Crypt2 crypt = new Crypt2();

        String pw = "password";

        String pwCharset = "utf-8";

        // Such as sha256, sha512
        String hashAlg = "sha256";

        // 16 bytes
        String saltHex = "78578E5A5D63CB0668AB39B21C8637FA";

        int iterationCount = 100000;

        // Derive a 256-bit key from the password.
        int outputBitLen = 256;

        // The derived key is returned as a hex or base64 encoded string.
        // (Note: The salt argument must be a string that also uses
        // the same encoding.)
        String enc = "hex";

        String hexKey = crypt.pbkdf2(pw, pwCharset, hashAlg, saltHex, iterationCount, outputBitLen, enc);

        System.out.println(hexKey);

        // Sample output:
        // AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70
    }
}