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Length of the data to decrypt is invalid. tripleDES c#

Posted By:      Posted Date: October 06, 2010    Points: 0   Category :ASP.Net
 

Hey there.. i am trying to make an Encrypt and Decrypt method...

When i try to encrypt it goes fine.. but when i right after try to decrypt it i get an:

"Length of the data to decrypt is invalid" error...

the error occours when i try to run the code FlushFinalBlock();

here is my code:

        public string Encrypt(string plainText)
        {
            UTF8Encoding utf8Encoder = new UTF8Encoding();
            byte[] inputInBytes = utf8Encoder.GetBytes(plainText);
            TripleDESCryptoServiceProvider tdesProvider = new TripleDESCryptoServiceProvider();
            ICryptoTransform cryptoTransform = tdesProvider.CreateEncryptor(symKey, IVKey);
            MemoryStream encryptedStream = new MemoryStream();
            CryptoStream cryptStream = new CryptoStream(encryptedStream, cryptoTransform, CryptoStreamMode.Write);

            cryptStream.Write(inputInBytes, 0, inputInBytes.Length);
            cryptStream.FlushFinalBlock();
            encryptedStream.Position = 0;
            byte[] result = new byte[encryptedStream.Length];
            encryptedStream.Read(result, 0, (int)encryptedStream.Length);
            cryptStream.Close();
            return utf8Encoder.GetString(result);
        }

        public string Decrypt(string encryptedString)
        {
            UTF8Encoding utf8Encoder =


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