Android AES Encrypt encryptedData(String userkey, String userData)

Description

encrypted Data

Declaration

public static String encryptedData(String userkey, String userData) 

Method Source Code

//package com.java2s;
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class Main {
    private static final String APP_KEY = "yourName";
    private static final String ENCODING = "ISO-8859-1";

    public static String encryptedData(String userkey, String userData) {
        String encryptedUserData = "";
        try {//from   www . j a v  a 2s.  c o m

            String key = getAppPassCode(userkey);
            // Create key and cipher
            Key aesKey = new SecretKeySpec(key.getBytes(), "AES");
            Cipher cipher = Cipher.getInstance("AES");

            // encrypt the text
            cipher.init(Cipher.ENCRYPT_MODE, aesKey);
            byte[] encrypted = cipher.doFinal(userData.getBytes());
            encryptedUserData = new String(encrypted, ENCODING);

        } catch (Exception e) {
            e.printStackTrace();
        }
        return encryptedUserData;
    }

    private static String getAppPassCode(String userPassCode) {
        String appPassCode = userPassCode;
        if (userPassCode.length() < 16) {
            appPassCode = appPassCode
                    + APP_KEY.substring(0,
                            (APP_KEY.length() - userPassCode.length()));
        }
        return appPassCode;
    }
}

Related

1. crypt(byte[] text, byte[] key, int mode)
2. aesEncode(String seed, String cleartext)
3. encrypt(byte[] raw, byte[] clear)
4. encrypt(Context context, String text)
5. encrypt(Context context, String text)
6. encryptedPassword(String key, String userData)
7. generateEncryptionSecret()
8. encode(String seed, String cleartext)