/**
 * @Author yanjun.hou
 */
public class TripleDESUtil {
    public static final String CIPHERMODE = "DESede/ECB/PKCS5Padding";
    public static final String ENCODE = "utf-8";
    public static final String TRIPLEDES_KEY="1234567890qwertas";
    /**
     * 初始化密钥
     * @return
     * @throws Exception
     */
    public static String getKeyStr() throws Exception{
        return Base64.encodeBase64String(TRIPLEDES_KEY.getBytes());
    }
    /**
     * 加密
     * @param src
     * @return
     */
    public static String encrypt(String src) {
        if (StringUtils.isBlank(src)) {
            return "";
        }
        try {
            DESedeKeySpec dks = new DESedeKeySpec(getKeyStr().getBytes(ENCODE));
            SecretKeyFactory keyFactory = SecretKeyFactory .getInstance("DESede");
            SecretKey securekey = keyFactory.generateSecret(dks);
            Cipher cipher = Cipher.getInstance(CIPHERMODE);
            cipher.init(Cipher.ENCRYPT_MODE, securekey);
            byte[] b = cipher.doFinal(src.getBytes());
            return Base64.encodeBase64String(b).replaceAll("\r", "").replaceAll("\n", "");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
    /**
     * 解密
     * @param src
     * @return
     */
    public static String decrypt(String src) {
        if (StringUtils.isBlank(src)) {
            return "";
        }
        try {
            byte[] bytesrc = Base64.decodeBase64(src);
            DESedeKeySpec dks = new DESedeKeySpec(getKeyStr().getBytes(ENCODE));
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
            SecretKey securekey = keyFactory.generateSecret(dks);
            Cipher cipher = Cipher.getInstance(CIPHERMODE);
            cipher.init(Cipher.DECRYPT_MODE, securekey);
            byte[] retByte = cipher.doFinal(bytesrc);
            return new String(retByte, "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
}