Java DES 加密

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package com.dataservice.utils.crypto;

import java.security.Key;
import java.security.spec.AlgorithmParameterSpec;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;

import lombok.extern.slf4j.Slf4j;

import org.bouncycastle.util.encoders.Base64;

@Slf4j
public class DesUtil {
    public static String encodeBcb(String key, byte[] data) throws Exception {
        DESKeySpec dks = new DESKeySpec(key.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        // key的长度不能够小于8位字节
        Key secretKey = keyFactory.generateSecret(dks);
        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
        IvParameterSpec iv = new IvParameterSpec("12345678".getBytes());// 向量
        AlgorithmParameterSpec paramSpec = iv;
        cipher.init(Cipher.ENCRYPT_MODE, secretKey, paramSpec);
        byte[] bytes = cipher.doFinal(data);
        return new String(Base64.encode(bytes));
    }

    public static byte[] decodeBcb(String key, byte[] data) throws Exception {
        try {
            DESKeySpec dks = new DESKeySpec(key.getBytes());
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
            // key 的长度不能够小于8 位字节
            Key secretKey = keyFactory.generateSecret(dks);
            Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
            IvParameterSpec iv = new IvParameterSpec("12345678".getBytes());
            AlgorithmParameterSpec paramSpec = iv;
            cipher.init(Cipher.DECRYPT_MODE, secretKey, paramSpec);
            return cipher.doFinal(data);
        } catch (Exception e) {
            log.error("decode bcb error", e);
            throw e;
        }
    }
}