C# RSA 系统找不到指定的文件

C#  RSA解密本机运行没有问题，发布到服务器后显示系统找不到指定文件，原代码：

        public static string RsaDecrypt1(string encryptedInput, string privateKey)
        {
            if (string.IsNullOrEmpty(encryptedInput))
            {
                return string.Empty;
            }
            using (var rsaProvider = new RSACryptoServiceProvider())
            {
                CspParameters RSAParams = new CspParameters();
                RSAParams.Flags = CspProviderFlags.UseMachineKeyStore;

                try
                {
                    var inputBytes = Convert.FromBase64String(encryptedInput);
                    rsaProvider.FromXmlString(privateKey);
                    int bufferSize = rsaProvider.KeySize / 8;
                    var buffer = new byte[bufferSize];
                    using (MemoryStream inputStream = new MemoryStream(inputBytes),
                         outputStream = new MemoryStream())
                    {
                        while (true)
                        {
                            int readSize = inputStream.Read(buffer, 0, bufferSize);
                            if (readSize <= 0)
                            {
                                break;
                            }

                            var temp = new byte[readSize];
                            Array.Copy(buffer, 0, temp, 0, readSize);
                            var rawBytes = rsaProvider.Decrypt(temp, false);
                            outputStream.Write(rawBytes, 0, rawBytes.Length);
                        }
                        return Encoding.UTF8.GetString(outputStream.ToArray());
                    }
                }
                catch
                {
                    return null;
                }
            }
        }

将这里修改：

 

 

修改为：

 

CspParameters RSAParams = new CspParameters();
RSAParams.Flags = CspProviderFlags.UseMachineKeyStore;
var rsaProvider = new RSACryptoServiceProvider(1024, RSAParams)

 

修改后完整代码：

 

public static string RsaDecrypt(string encryptedInput, string privateKey)
        {
            if (string.IsNullOrEmpty(encryptedInput))
            {
                return string.Empty;
            }
            CspParameters RSAParams = new CspParameters();
            RSAParams.Flags = CspProviderFlags.UseMachineKeyStore;
            using (var rsaProvider = new RSACryptoServiceProvider(1024, RSAParams))
            {
                try
                {
                    var inputBytes = Convert.FromBase64String(encryptedInput);
                    rsaProvider.FromXmlString(privateKey);
                    int bufferSize = rsaProvider.KeySize / 8;
                    var buffer = new byte[bufferSize];
                    using (MemoryStream inputStream = new MemoryStream(inputBytes),
                         outputStream = new MemoryStream())
                    {
                        while (true)
                        {
                            int readSize = inputStream.Read(buffer, 0, bufferSize);
                            if (readSize <= 0)
                            {
                                break;
                            }

                            var temp = new byte[readSize];
                            Array.Copy(buffer, 0, temp, 0, readSize);
                            var rawBytes = rsaProvider.Decrypt(temp, false);
                            outputStream.Write(rawBytes, 0, rawBytes.Length);
                        }
                        return Encoding.UTF8.GetString(outputStream.ToArray());
                    }
                }
                catch
                {
                    return null;
                }
            }
        }