package com.ruoyi.system.utils.util;
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import javax.crypto.Cipher;
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import javax.crypto.spec.SecretKeySpec;
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import java.nio.charset.StandardCharsets;
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import java.util.Base64;
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/**
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* aes工具类
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*
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* @author xuwenbing
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* @date 2019-06-12
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*/
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public class AesSimpleUtil {
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// 对于Java中AES的默认模式是：AES/ECB/PKCS5Padding
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private static final String AES = "AES";
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/**
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* 加密
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*
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* @param source 源字符串
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* @param keyBase64 keyBase64
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* @return 加密的字符串
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* @throws Exception
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*/
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public static String encrypt(String source, String keyBase64) throws Exception {
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// 获取secretKey
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byte[] keyBytes = Base64.getDecoder().decode(keyBase64.getBytes(StandardCharsets.UTF_8));
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SecretKeySpec secretKey = new SecretKeySpec(keyBytes, AES);
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// 数据加密
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Cipher cipher = Cipher.getInstance(AES);
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cipher.init(Cipher.ENCRYPT_MODE, secretKey);
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byte[] encryptBytes = cipher.doFinal(source.getBytes(StandardCharsets.UTF_8));
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return Base64.getEncoder().encodeToString(encryptBytes);
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}
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/**
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* 解密
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*
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* @param encrypted 加密的字符串
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* @param keyBase64 keyBase64
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* @return 源字符串
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* @throws Exception
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*/
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public static String decrypt(String encrypted, String keyBase64) throws Exception {
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// 获取secretKey
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byte[] keyBytes = Base64.getDecoder().decode(keyBase64.getBytes(StandardCharsets.UTF_8));
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SecretKeySpec secretKey = new SecretKeySpec(keyBytes, AES);
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// 数据解密
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Cipher cipher = Cipher.getInstance(AES);
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cipher.init(Cipher.DECRYPT_MODE, secretKey);
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byte[] decryptBytes = cipher.doFinal(Base64.getDecoder().decode(encrypted));
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return new String(decryptBytes, StandardCharsets.UTF_8);
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}
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}
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