有没大神帮忙写一个JAVA对应的AES加密与解密的方法

jovien 2018-03-12 05:23:13

已知：secrtKey
需要加密的文本:plainText

加密伪代码(java)

//AES 秘钥：商户安全码前16字节
byte[] aseKey = secrtKey.substring(0,16).getBytes();
String cipherText = Base64Encode( AESEncrypt( plainText.getByte("UTF-8"), aseKey) );

解密伪代码(java)

//AES 秘钥：商户安全码前16字节
byte[] aseKey = secrtKey.substring(0,16).getBytes();
String plainText = new String(AESDecrypt(Base64Decode(cipherText), aseKey), "UTF-8");

求一个C#对应的加密与解密方法

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娃都会打酱油了 2018-03-13

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http://blog.csdn.net/starfd/article/details/51908758 使用方法在最后，然后你自己要注意java代码里的截取，这部分你自己应该能搞定吧

jovien 2018-03-13

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引用 4 楼 xuzuning 的回复:

        public static string Encrypt(string toEncrypt, string key, string iv)
        {
            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
            byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
 
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.IV = ivArray;
            rDel.Mode = CipherMode.CBC;
            rDel.Padding = PaddingMode.Zeros;
 
            ICryptoTransform cTransform = rDel.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }
 
        public static string Decrypt(string toDecrypt, string key, string iv)
        {
            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
            byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
 
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.IV = ivArray;
            rDel.Mode = CipherMode.CBC;
            rDel.Padding = PaddingMode.Zeros;
 
            ICryptoTransform cTransform = rDel.CreateDecryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return UTF8Encoding.UTF8.GetString(resultArray);
        }

    public static String encrypt() throws Exception {
        try {
            String data = "Test String";
            String key = "1234567812345678";
            String iv = "1234567812345678";
 
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            int blockSize = cipher.getBlockSize();
 
            byte[] dataBytes = data.getBytes();
            int plaintextLength = dataBytes.length;
            if (plaintextLength % blockSize != 0) {
                plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
            }
 
            byte[] plaintext = new byte[plaintextLength];
            System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
             
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
 
            cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
            byte[] encrypted = cipher.doFinal(plaintext);
 
            return new sun.misc.BASE64Encoder().encode(encrypted);
 
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
 
    public static String desEncrypt() throws Exception {
        try
        {
            String data = "2fbwW9+8vPId2/foafZq6Q==";
            String key = "1234567812345678";
            String iv = "1234567812345678";
             
            byte[] encrypted1 = new BASE64Decoder().decodeBuffer(data);
             
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
             
            cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
  
            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original);
            return originalString;
        }
        catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

有AES/ECB/PKCS1Padding 模式的示例吗，版主大神

jovien 2018-03-13

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 public static string AesEncrypt(string str, string publicKey)
        {
            Byte[] toEncryptArray = Encoding.UTF8.GetBytes(str);
            System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
            {
                Key = Encoding.UTF8.GetBytes(publicKey.Substring(0,16)),
                Mode = System.Security.Cryptography.CipherMode.ECB,
                Padding = System.Security.Cryptography.PaddingMode.PKCS7,
                BlockSize = 128
            };

            System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateEncryptor();
            Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }


        /// <summary>
        /// 解密
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string AesDecrypt(string str, string publicKey)
        {
            Byte[] toEncryptArray = Convert.FromBase64String(str);
            System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
            {
                Key = Encoding.UTF8.GetBytes(publicKey.Substring(0, 16)),
                Mode = System.Security.Cryptography.CipherMode.ECB,
                Padding = System.Security.Cryptography.PaddingMode.PKCS7,
                BlockSize=128
            };

            System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateDecryptor();
            Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

            return Encoding.UTF8.GetString(resultArray);
        }

搞定了，还是要谢谢版本大神

xuzuning 2018-03-12

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        public static string Encrypt(string toEncrypt, string key, string iv)
        {
            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
            byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
 
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.IV = ivArray;
            rDel.Mode = CipherMode.CBC;
            rDel.Padding = PaddingMode.Zeros;
 
            ICryptoTransform cTransform = rDel.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }
 
        public static string Decrypt(string toDecrypt, string key, string iv)
        {
            byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
            byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
            byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
 
            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.IV = ivArray;
            rDel.Mode = CipherMode.CBC;
            rDel.Padding = PaddingMode.Zeros;
 
            ICryptoTransform cTransform = rDel.CreateDecryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
 
            return UTF8Encoding.UTF8.GetString(resultArray);
        }

    public static String encrypt() throws Exception {
        try {
            String data = "Test String";
            String key = "1234567812345678";
            String iv = "1234567812345678";
 
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            int blockSize = cipher.getBlockSize();
 
            byte[] dataBytes = data.getBytes();
            int plaintextLength = dataBytes.length;
            if (plaintextLength % blockSize != 0) {
                plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
            }
 
            byte[] plaintext = new byte[plaintextLength];
            System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
             
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
 
            cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
            byte[] encrypted = cipher.doFinal(plaintext);
 
            return new sun.misc.BASE64Encoder().encode(encrypted);
 
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
 
    public static String desEncrypt() throws Exception {
        try
        {
            String data = "2fbwW9+8vPId2/foafZq6Q==";
            String key = "1234567812345678";
            String iv = "1234567812345678";
             
            byte[] encrypted1 = new BASE64Decoder().decodeBuffer(data);
             
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
             
            cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
  
            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original);
            return originalString;
        }
        catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

jovien 2018-03-12

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引用 2 楼 xuzuning 的回复:

我可以提供与 Java 的 AES/CBC/NoPadding 对应的 C# 代码

感谢版主大人，如果可以的话请发一份到我邮箱 30885621@qq.com

xuzuning 2018-03-12

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我可以提供与 Java 的 AES/CBC/NoPadding 对应的 C# 代码

jovien 2018-03-12

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加解密说明：加密秘钥为商户安全码(secrtKey，全数字和字母组合)的前16个字符，长度为128位, 使用16字节字符串转换为UTF-8编码的byte数组。 AES算法的模式为ECB，填充方式为PKCS1Padding。算法/模式/填充为：AES/ECB/PKCS1Padding 加密的明文以UTF-8编码转换为byte数组作为加密入参加密后密文需要Base64编码默认作为最终加密数据用于签名和传输解密时，需要对密文进行Base64解码后作为解密入参解密后的明文byte数组需要以UTF-8编码转换为字符串，作为最终的明文数据。