56 lines
1.8 KiB
Java
56 lines
1.8 KiB
Java
package fr.xephi.authme.security.crypts;
|
|
|
|
import java.math.BigInteger;
|
|
import java.security.MessageDigest;
|
|
import java.security.NoSuchAlgorithmException;
|
|
|
|
/**
|
|
*/
|
|
public class SHA256 implements EncryptionMethod {
|
|
|
|
/**
|
|
* Method getSHA256.
|
|
*
|
|
* @param message String
|
|
* @return String * @throws NoSuchAlgorithmException
|
|
*/
|
|
private static String getSHA256(String message)
|
|
throws NoSuchAlgorithmException {
|
|
MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
|
|
sha256.reset();
|
|
sha256.update(message.getBytes());
|
|
byte[] digest = sha256.digest();
|
|
return String.format("%0" + (digest.length << 1) + "x", new BigInteger(1, digest));
|
|
}
|
|
|
|
/**
|
|
* Method getHash.
|
|
*
|
|
* @param password String
|
|
* @param salt String
|
|
* @param name String
|
|
* @return String * @throws NoSuchAlgorithmException * @see fr.xephi.authme.security.crypts.EncryptionMethod#getHash(String, String, String)
|
|
*/
|
|
@Override
|
|
public String getHash(String password, String salt, String name)
|
|
throws NoSuchAlgorithmException {
|
|
return "$SHA$" + salt + "$" + getSHA256(getSHA256(password) + salt);
|
|
}
|
|
|
|
/**
|
|
* Method comparePassword.
|
|
*
|
|
* @param hash String
|
|
* @param password String
|
|
* @param playerName String
|
|
* @return boolean * @throws NoSuchAlgorithmException * @see fr.xephi.authme.security.crypts.EncryptionMethod#comparePassword(String, String, String)
|
|
*/
|
|
@Override
|
|
public boolean comparePassword(String hash, String password,
|
|
String playerName) throws NoSuchAlgorithmException {
|
|
String[] line = hash.split("\\$");
|
|
return hash.equals(getHash(password, line[2], ""));
|
|
}
|
|
|
|
}
|