AES encrypt byte array by string key - Android java.security

Android examples for java.security:AES

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Description

AES encrypt byte array by string key

Demo Code

import android.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class Main{


    public static byte[] encrypt2(byte[] data, String key) throws Exception {
        try {//  w w  w. j  av  a 2s  .co m
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            byte[] base64Key = Base64.decode(key, Base64.DEFAULT);
            SecretKeySpec keyspec = new SecretKeySpec(base64Key, "AES");
            cipher.init(Cipher.ENCRYPT_MODE, keyspec);
            byte[] encrypted = cipher.doFinal(data);
            return encrypted;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

}

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