com.github.jhonyscamacho.finaluser.encryption.EncryptionSHA3 Maven / Gradle / Ivy

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A bunch of classes that help developers building login and authentication.

The newest version!

package com.github.jhonyscamacho.finaluser.encryption;

import java.security.MessageDigest;

import org.bouncycastle.jcajce.provider.digest.SHA3.DigestSHA3;
import org.bouncycastle.jcajce.provider.digest.SHA3.Digest256;

/**
 * Esse tipo de Criptografia só encriptografa, mas não descriptografa.
 * 
 **/
public class EncryptionSHA3 implements Encryption {

	private static Encryption instance;
	
	private EncryptionSHA3() { }
	
	public static Encryption getInstance(){
		
		if(instance == null)
			instance = new EncryptionSHA3();
		
		return instance;
	}
	
	@Override
    public String encrypt(String data) {
        DigestSHA3 sha3 = new Digest256();

        sha3.update(data.getBytes());

        return messageDigestHashToString(sha3);
    }

    private String messageDigestHashToString(MessageDigest hash) {
        return byteToString(hash.digest());
    }

    private String byteToString(byte[] hash) {
        StringBuffer buff = new StringBuffer();

        for (byte b : hash) {
            buff.append(String.format("%02x", b & 0xFF));
        }

        return buff.toString();
    }

    
	public static void main(String[] args) {
		
		EncryptionSHA3 teste = new EncryptionSHA3();
		
		System.out.println(teste.encrypt("").length());
		System.out.println(teste.encrypt(""));
		
		System.out.println("\n");
        System.out.println(teste.encrypt("12345678").length());
        System.out.println(teste.encrypt("12345678"));
        
		System.out.println("\n");
        System.out.println(teste.encrypt("aucenirejhonathan").length());
        System.out.println(teste.encrypt("aucenirejhonathan"));
        
		System.out.println("\n");
        System.out.println(teste.encrypt("lorin+gotinha=Casanova").length());
        System.out.println(teste.encrypt("lorin+gotinha=Casanova"));
        
		System.out.println("\n");
        System.out.println(teste.encrypt("ççççççççççççççççççççççççççç aaaaaaaaaaaaaaaaaaaaaaaaaaaaa iiiiiiiiiiiiiiiiiiiiiiiiii eeeeeeeeeeeeeeeeeeeeeeeeeeeee").length());
        System.out.println(teste.encrypt("ççççççççççççççççççççççççççç aaaaaaaaaaaaaaaaaaaaaaaaaaaaa iiiiiiiiiiiiiiiiiiiiiiiiii eeeeeeeeeeeeeeeeeeeeeeeeeeeee"));
    }

}