128bit decryption question?

[J.R]

The below code works if "Input" is the result of a read from a binary file.
I want Input to be a literal string variable. When this is the case,
received "Length of Data to Decrypt is Invalid" error.

Any ideas appreciated.

Thank you, John.

arrResult = UTF8.GetBytes(Input);

MemoryStream stmDecrypted = new MemoryStream();

cptTransform = tDesProvider.CreateDecryptor(arrKeyBytes, arrIVBytes);

CryptoStream stmCrypt = new CryptoStream(stmDecrypted, cptTransform,
CryptoStreamMode.Write);

stmCrypt.Write(arrResult, 0, arrResult.Length);

stmCrypt.FlushFinalBlock();


stmDecrypted.Position = 0;


stmDecrypted.Read(arrResult, 0, Convert.ToInt32(stmDecrypted.Length));

Output = UTF8.GetString(arrResult);

 

[Jon Skeet [C# MVP]]

The below code works if "Input" is the result of a read from a binary file.
I want Input to be a literal string variable. When this is the case,
received "Length of Data to Decrypt is Invalid" error.

Please post a short but complete program which demonstrates the
problem. See
http://www.pobox.com/~skeet/csharp/complete.html for what I mean by
that.