package fr.xephi.authme.security.crypts;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import fr.xephi.authme.AuthMe;


public class WBB3 implements EncryptionMethod {

	@Override
	public String getHash(String password, String salt)
			throws NoSuchAlgorithmException {
		return getSHA1(salt.concat(getSHA1(salt.concat(getSHA1(password)))));
	}

	@Override
	public boolean comparePassword(String hash, String password,
			String playerName) throws NoSuchAlgorithmException {
    	String salt = AuthMe.getInstance().database.getAuth(playerName).getSalt();
    	return hash.equals(getHash(password, salt));
	}

    private static String getSHA1(String message) throws NoSuchAlgorithmException {
        MessageDigest sha1 = MessageDigest.getInstance("SHA1");
        sha1.reset();
        sha1.update(message.getBytes());
        byte[] digest = sha1.digest();
        return String.format("%0" + (digest.length << 1) + "x", new BigInteger(1,digest));
    }
}