package com.jeeplus.modules.guide.utils;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import sun.misc.BASE64Decoder;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigInteger;
/**
* 编码工具类
* 实现aes加密、解密
*/
public class AESEncryptionUtils {
private static final String encryptKey = "1URT202208141602";//16为加密字符
private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";//算法
public static void main(String[] args) throws Exception {
//加密内容
String content = "{\"appointdate\":\"2022-05-17\",\"itemid\":\"AC261BEE-2750-4675-A7C5-5BDCFEF710C4\",\"accountidcard\":\"513435199806070012\"}";
//加密
String encrypt = aesEncrypt(content, encryptKey);
//解密
String decrypt = aesDecrypt(encrypt, encryptKey);
//解密内容
System.out.println(decrypt);
}
/**
* aes解密
*
* @param encryptStr 内容
* @param decryptKey 解密密钥
* @return 解密后的string
* @throws Exception
*/
public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
}
/**
* AES加密
*
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的内容
* @throws Exception
*/
public static String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
}
/**
* 将byte[]转为各种进制的字符串
*
* @param bytes byte[]
* @param radix 可以转换进制的范围，从Character.MIN_RADIX到Character.MAX_RADIX，超出范围后变为10进制
* @return 转换后的字符串
*/
private static String binary(byte[] bytes, int radix) {
return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数
}
/**
* base 64 encode
*
* @param bytes 待编码的byte[]
* @return 编码后的base 64 code
*/
private static String base64Encode(byte[] bytes) {
return Base64.encodeBase64String(bytes);
}
/**
* base 64 decode
*
* @param base64Code 待解码的base 64 code
* @return 解码后的byte[]
* @throws Exception
*/
private static byte[] base64Decode(String base64Code) throws Exception {
return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
}
/**
* AES加密
*
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的byte[]
* @throws Exception
*/
private static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
return cipher.doFinal(content.getBytes("utf-8"));
}
/**
* AES解密
*
* @param encryptBytes 待解密的byte[]
* @param decryptKey 解密密钥
* @return 解密后的String
* @throws Exception
*/
private static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes,"utf-8");
}
}
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