• asp.net AES加密跟PHP的一致,将加密的2进制byte[]转换为16进制byte[] 的字符串获得


    <?php
    class AESUtil {
        
        
    
        public static function encrypt($input, $key) {
    
        $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);
    
        $input = AESUtil::pkcs5_pad($input, $size);
    
        $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
    
        $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
    
        mcrypt_generic_init($td, $key, $iv);
    
        $data = mcrypt_generic($td, $input);
    
        mcrypt_generic_deinit($td);
    
        mcrypt_module_close($td);
    
        $data = strtoupper(bin2hex($data));
    
        return $data;
    
        }
    
     
    
        private static function pkcs5_pad ($text, $blocksize) {
    
            $pad = $blocksize - (strlen($text) % $blocksize);
    
            return $text . str_repeat(chr($pad), $pad);
    
        }
    
     
    
        public static function decrypt($sStr, $sKey) {
    
            $decrypted= mcrypt_decrypt(
    
            MCRYPT_RIJNDAEL_128,
    
            $sKey,
    
            base64_decode($sStr),
    
            MCRYPT_MODE_ECB
    
        );
    
     
    
            $dec_s = strlen($decrypted);
    
            $padding = ord($decrypted[$dec_s-1]);
    
            $decrypted = substr($decrypted, 0, -$padding);
    
            return $decrypted;
    
        }    
    }
    ?>

    下面这个跟PHP的一样加密后,将加密的2进制byte[]转换为16进制byte[] 的字符串获得

    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Security.Cryptography;
    using System.IO;
    
    namespace pay
    {
        class AESHelper
        {
    
          
    
            /// <summary>  
            /// AES加密  
            /// </summary>  
            /// <param name="Data">被加密的明文</param>  
            /// <param name="Key">密钥</param>  
            /// <param name="Vector">向量</param>  
            /// <returns>密文</returns>  
            public static String AESEncrypt(String Data, String Key, String Vector)
            {
                Byte[] plainBytes = Encoding.UTF8.GetBytes(Data);
    
                Byte[] bKey = new Byte[32];
                Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);
                Byte[] bVector = new Byte[16];
                Array.Copy(Encoding.UTF8.GetBytes(Vector.PadRight(bVector.Length)), bVector, bVector.Length);
    
                Byte[] Cryptograph = null; // 加密后的密文  
    
                Rijndael Aes = Rijndael.Create();
                try
                {
                    // 开辟一块内存流  
                    using (MemoryStream Memory = new MemoryStream())
                    {
                        // 把内存流对象包装成加密流对象  
                        using (CryptoStream Encryptor = new CryptoStream(Memory,
                         Aes.CreateEncryptor(bKey, bVector),
                         CryptoStreamMode.Write))
                        {
                            // 明文数据写入加密流  
                            Encryptor.Write(plainBytes, 0, plainBytes.Length);
                            Encryptor.FlushFinalBlock();
    
                            Cryptograph = Memory.ToArray();
                        }
                    }
                }
                catch
                {
                    Cryptograph = null;
                }
    
                return Convert.ToBase64String(Cryptograph);
            }
    
            /// <summary>  
            /// AES解密  
            /// </summary>  
            /// <param name="Data">被解密的密文</param>  
            /// <param name="Key">密钥</param>  
            /// <param name="Vector">向量</param>  
            /// <returns>明文</returns>  
            public static String AESDecrypt(String Data, String Key, String Vector)
            {
                Byte[] encryptedBytes = Convert.FromBase64String(Data);
                Byte[] bKey = new Byte[32];
                Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);
                Byte[] bVector = new Byte[16];
                Array.Copy(Encoding.UTF8.GetBytes(Vector.PadRight(bVector.Length)), bVector, bVector.Length);
    
                Byte[] original = null; // 解密后的明文  
    
                Rijndael Aes = Rijndael.Create();
                try
                {
                    // 开辟一块内存流,存储密文  
                    using (MemoryStream Memory = new MemoryStream(encryptedBytes))
                    {
                        // 把内存流对象包装成加密流对象  
                        using (CryptoStream Decryptor = new CryptoStream(Memory,
                        Aes.CreateDecryptor(bKey, bVector),
                        CryptoStreamMode.Read))
                        {
                            // 明文存储区  
                            using (MemoryStream originalMemory = new MemoryStream())
                            {
                                Byte[] Buffer = new Byte[1024];
                                Int32 readBytes = 0;
                                while ((readBytes = Decryptor.Read(Buffer, 0, Buffer.Length)) > 0)
                                {
                                    originalMemory.Write(Buffer, 0, readBytes);
                                }
    
                                original = originalMemory.ToArray();
                            }
                        }
                    }
                }
                catch
                {
                    original = null;
                }
                return Encoding.UTF8.GetString(original);
            }
    
    
    
            /// <summary>  
            /// AES加密(无向量)  
            /// </summary>  
            /// <param name="plainBytes">被加密的明文</param>  
            /// <param name="key">密钥</param>  
            /// <returns>密文</returns>  
            public static string AESEncrypt(String Data, String Key)
            {
                MemoryStream mStream = new MemoryStream();
                RijndaelManaged aes = new RijndaelManaged();
    
                byte[] plainBytes = Encoding.UTF8.GetBytes(Data);
                Byte[] bKey = new Byte[32];
                Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);
    
                aes.Mode = CipherMode.ECB;
                aes.Padding = PaddingMode.PKCS7;
                aes.KeySize = 128;
               // aes.Key = bKey;
                aes.IV = Encoding.UTF8.GetBytes(Key);
                    
                CryptoStream cryptoStream = new CryptoStream(mStream, aes.CreateEncryptor(), CryptoStreamMode.Write);
                try
                {
                    cryptoStream.Write(plainBytes, 0, plainBytes.Length);
                    cryptoStream.FlushFinalBlock();
                    byte[] hs = mStream.ToArray();
                    StringBuilder sb = new StringBuilder();
                    foreach (byte b in hs)
                    {
                        // 以十六进制格式格式化  
                        sb.Append(b.ToString("X2"));
                    }
                    return sb.ToString();
                 // return Convert.ToBase64String(mStream.ToArray());
                  //Byte[] mStream.ToArray();
                  //System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
                  //String StringMessage = UTF8.GetString(mStream.ToArray());
                  //return StringMessage;
                
                }
                finally
                {
                    cryptoStream.Close();
                    mStream.Close();
                    aes.Clear();
                }
            }
    
    
            /// <summary>  
            /// AES解密(无向量)  
            /// </summary>  
            /// <param name="encryptedBytes">被加密的明文</param>  
            /// <param name="key">密钥</param>  
            /// <returns>明文</returns>  
            public static string AESDecrypt(String Data, String Key)
            {
                Byte[] encryptedBytes = Convert.FromBase64String(Data);
                Byte[] bKey = new Byte[32];
                Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);
    
                MemoryStream mStream = new MemoryStream(encryptedBytes);
                //mStream.Write( encryptedBytes, 0, encryptedBytes.Length );  
                //mStream.Seek( 0, SeekOrigin.Begin );  
                RijndaelManaged aes = new RijndaelManaged();
                aes.Mode = CipherMode.ECB;
                aes.Padding = PaddingMode.PKCS7;
                aes.KeySize = 128;
                aes.Key = bKey;
             //   aes.IV = _iV;  
                CryptoStream cryptoStream = new CryptoStream(mStream, aes.CreateDecryptor(), CryptoStreamMode.Read);
                try
                {
                    byte[] tmp = new byte[encryptedBytes.Length + 32];
                    int len = cryptoStream.Read(tmp, 0, encryptedBytes.Length + 32);
                    byte[] ret = new byte[len];
                    Array.Copy(tmp, 0, ret, 0, len);
                    return Encoding.UTF8.GetString(ret);
                }
                finally
                {
                    cryptoStream.Close();
                    mStream.Close();
                    aes.Clear();
                }
            }
    //下面这一个才能对应上面的PHP版AES加密
    
            /// <summary>
            /// AES加密
            /// </summary>
            /// <param name="str">要加密字符串</param>
            /// <returns>返回加密后字符串</returns>
            public static String Encrypt_AES(String str,String key)
            {
                Byte[] keyArray = System.Text.UTF8Encoding.UTF8.GetBytes(key);
                Byte[] toEncryptArray = System.Text.UTF8Encoding.UTF8.GetBytes(str);
    
                System.Security.Cryptography.RijndaelManaged rDel = new System.Security.Cryptography.RijndaelManaged();
                rDel.Key = keyArray;
                rDel.Mode = System.Security.Cryptography.CipherMode.ECB;
                rDel.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
    
                System.Security.Cryptography.ICryptoTransform cTransform = rDel.CreateEncryptor();
                Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
    
                byte[] hs = resultArray;
                StringBuilder sb = new StringBuilder();
                foreach (byte b in hs)
                {
                    // 以十六进制格式格式化  
                    sb.Append(b.ToString("X2"));
                }
                return sb.ToString();
    
            }
            
            
      /// <summary>
    /// AES解密
    /// </summary>
    /// <param name="str">要解密字符串</param>
    /// <returns>返回解密后字符串</returns>
    public static String Decrypt_AES(String str)
    {
        Byte[] keyArray = System.Text.UTF8Encoding.UTF8.GetBytes(strAesKey);
        Byte[] toEncryptArray = Convert.FromBase64String(str);
        System.Security.Cryptography.RijndaelManaged rDel = new System.Security.Cryptography.RijndaelManaged();
        rDel.Key = keyArray;
        rDel.Mode = System.Security.Cryptography.CipherMode.ECB;
        rDel.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
        System.Security.Cryptography.ICryptoTransform cTransform = rDel.CreateDecryptor();
        Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
        return System.Text.UTF8Encoding.UTF8.GetString(resultArray);
    }
    
        }
    }

     解密的时候如果不成功,其实要把16进制密文转成字节

    字符串转16进制字节数组
            /// <summary>
            /// 字符串转16进制字节数组
            /// </summary>
           /// <param name="hexString"></param>
            /// <returns></returns>
            private static byte[] strToToHexByte(string hexString)
            {
                 hexString = hexString.Replace(" ", "");
               if ((hexString.Length % 2) != 0)
                     hexString += " ";
                byte[] returnBytes = new byte[hexString.Length / 2];
                for (int i = 0; i < returnBytes.Length; i++)
                    returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
                return returnBytes;
             }

    然后在进行解密

           /// <summary>
            /// AES解密
            /// </summary>
            /// <param name="str">要解密字符串</param>
            /// <returns>返回解密后字符串</returns>
            public static String Decrypt_AES(String str, string strAesKey,Byte[] strbyte)
            {
                Byte[] keyArray = System.Text.UTF8Encoding.UTF8.GetBytes(strAesKey);
                 Byte[] toEncryptArray =Convert.FromBase64String(str);
                if (str+""=="")
                {
                     toEncryptArray = strbyte;
                }
    
                //Byte[] toEncryptArray = System.Text.UTF8Encoding.UTF8.GetBytes(str);
    
    
                System.Security.Cryptography.RijndaelManaged rDel = new System.Security.Cryptography.RijndaelManaged();
                rDel.Key = keyArray;
                rDel.Mode = System.Security.Cryptography.CipherMode.ECB;
                rDel.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
    
                System.Security.Cryptography.ICryptoTransform cTransform = rDel.CreateDecryptor();
    
                Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
                return System.Text.UTF8Encoding.UTF8.GetString(resultArray);
            }
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  • 原文地址:https://www.cnblogs.com/xuxiaoshuan/p/7543380.html
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