AES加密代码（.net和java可互转）

.net加密解密代码

        public static string AesEncrypt(string str, string key)
        {
            //秘钥取md5
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] t = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
            if (string.IsNullOrEmpty(str)) return null;
            Byte[] toEncryptArray = Encoding.UTF8.GetBytes(str);
            RijndaelManaged rm = new RijndaelManaged
            {
                Key = t,
                Mode = CipherMode.ECB,
                Padding = PaddingMode.PKCS7
            };
            ICryptoTransform cTransform = rm.CreateEncryptor();
            Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }

        public static string AesDecrypt(string str, string key)
        {
            if (string.IsNullOrEmpty(str)) return null;
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] t = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
            Byte[] toEncryptArray = Convert.FromBase64String(str);
            RijndaelManaged rm = new RijndaelManaged
            {
                Key = t,
                Mode = CipherMode.ECB,
                Padding = PaddingMode.PKCS7
            };
            ICryptoTransform cTransform = rm.CreateDecryptor();
            Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
            return Encoding.UTF8.GetString(resultArray);
        }

java加密解密代码

private static final String defaultCharset = "UTF-8";
private static final String KEY_AES = "AES";
private static final String KEY_MD5 = "MD5";
public static final String key = "test";
public static String encrypt(String data, String key) {
return doAES(data, key, Cipher.ENCRYPT_MODE);
}
/**
* 加解密
*
* @param data
* @param key
* @param mode
* @return
*/
private static String doAES(String data, String key, int mode) {
try {
if (StringUtils.isBlank(data) || StringUtils.isBlank(key)) {
return null;
}
boolean encrypt = mode == Cipher.ENCRYPT_MODE;
byte[] content;
if (encrypt) {
content = data.getBytes(defaultCharset);
} else {
content = Base64.decodeBase64(data.getBytes(defaultCharset));
}
// 创建密钥
SecretKeySpec keySpec = new SecretKeySpec(md5Digest.digest(key.getBytes(defaultCharset)), KEY_AES);
// 创建密码器
Cipher cipher = Cipher.getInstance(KEY_AES);
// 初始化
cipher.init(mode, keySpec);
byte[] result = cipher.doFinal(content);
if (encrypt) {
return new String(Base64.encodeBase64(result));
} else {
return new String(result, defaultCharset);
}
} catch (Exception e) {
System.err.println("AES密⽂处理异常" + e);
e.printStackTrace();
}
return null;
}