com.sysfore.pos.licensemanagement.LicenceManagementUtil.java Source code

Introduction

Here is the source code for com.sysfore.pos.licensemanagement.LicenceManagementUtil.java

Source

package com.sysfore.pos.licensemanagement;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class LicenceManagementUtil {

    static Log log = LogFactory.getLog(LicenceManagementUtil.class);

    private static byte[] key = { 0x74, 0x68, 0x69, 0x73, 0x49, 0x73, 0x41, 0x53, 0x65, 0x63, 0x72, 0x65, 0x74,
            0x4b, 0x65, 0x79 };// "thisIsASecretKey";

    public static String encrypt(String strToEncrypt) {
        try {
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);

            final String encryptedString = Base64.encodeBase64String(cipher.doFinal(strToEncrypt.getBytes()));
            return encryptedString;
        } catch (Exception e) {
            log.error("Error while encrypting", e);
        }
        return null;

    }

    public static String decrypt(String strToDecrypt) {
        try {
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");
            final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            final String decryptedString = new String(cipher.doFinal(Base64.decodeBase64(strToDecrypt)));

            return decryptedString;
        } catch (Exception e) {
            log.error("Error while decrypting", e);

        }
        return null;
    }

}