java和js实现aes加密解密由于公司安全测试，要对重要信息进⾏加密传输，使得java、android、ios⼀致。
java代码
package govmunitycloud.user.utils;
import java.math.BigInteger;
pto.Cipher;
pto.KeyGenerator;
pto.spec.SecretKeySpec;
import dec.binary.Base64;
import org.apachemons.lang3.StringUtils;
import sun.misc.BASE64Decoder;
/**
* 编码⼯具类
* 实现aes加密、解密
*/
public class EncryptUtils {
/**
* 密钥
*/
private static final String KEY = "abcdefgabcdefg12";
/**
* 算法
*/
private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
public static void main(String[] args) throws Exception {
String content = "我爱你";
System.out.println("加密前：" + content);
System.out.println("加密密钥和解密密钥：" + KEY);
String encrypt = aesEncrypt(content, KEY);
System.out.println("加密后：" + encrypt);
String decrypt = aesDecrypt(encrypt, KEY);
System.out.println("解密后：" + decrypt);
}
/**
* aes解密
* @param encrypt 内容
* @return
* @throws Exception
*/
public static String aesDecrypt(String encrypt) throws Exception {
return aesDecrypt(encrypt, KEY);
}
/**
* aes加密
* @param content
* @return
* @throws Exception
*/
public static String aesEncrypt(String content) throws Exception {
return aesEncrypt(content, KEY);
}
/**
* 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
*/
public 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
*/
public static String base64Encode(byte[] bytes){
deBase64String(bytes);
}
/
**
* base 64 decode
* @param base64Code 待解码的base 64 code
* @return 解码后的byte[]
* @throws Exception
*/
public 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
*/
public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = Instance("AES");
kgen.init(128);
Cipher cipher = Instance(ALGORITHMSTR);
cipher.init(Cipher.ENCRYPT_MODE, new Bytes(), "AES"));
return cipher.Bytes("utf-8"));
}js代码加密软件
/**
* AES加密为base 64 code
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的base 64 code
* @throws Exception
*/
public static String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
}
/
**
* AES解密
* @param encryptBytes 待解密的byte[]
* @param decryptKey 解密密钥
* @return 解密后的String
* @throws Exception
*/
public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = Instance("AES");
kgen.init(128);
Cipher cipher = Instance(ALGORITHMSTR);
cipher.init(Cipher.DECRYPT_MODE, new Bytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes);
}
/**
* 将base 64 code AES解密
* @param encryptStr 待解密的base 64 code
* @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); }
}
js代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>aes测试</title>
<script type="text/javascript" src="aes.js"></script>
<script type="text/javascript" src="../components/mode-ecb.js"></script>
</head>
<body>
</body>
<script type="text/javascript">
function Encrypt(word){
var key = Utf8.parse("abcdefgabcdefg12");
var srcs = Utf8.parse(word);
var encrypted = pt(srcs, key, {de.ECB,padding: CryptoJS.pad.Pkcs7});        String();
}
function Decrypt(word){
var key = Utf8.parse("abcdefgabcdefg12");
var decrypt = CryptoJS.AES.decrypt(word, key, {de.ECB,padding: CryptoJS.pad.Pkcs7});  Utf8.stringify(decrypt).toString();
}
alert(Encrypt("我爱你"));
alert(Decrypt(Encrypt("我爱你")))
</script>
</html>
注意点
1. js中需要引⼊CryptoJS的架包，下载地址：
2. 使⽤aes时，js代码不要暴漏在外⾯，不然key会被拿到
3. PKCS5Padding和PKCS7Padding的结果是⼀样

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