encryption Issue

Question

I got Error message like below   

 

"Specified initialization vector (IV) does not match the block size for this algorithm." 

 

code

            

string password = "hfrHSGHSBS";

UnicodeEncoding UE = new UnicodeEncoding();

byte[] key = UE.GetBytes(password);

string cryptFile = outputFile;

FileStream fsCrypt = new FileStream(cryptFile, FileMode.Create);

RijndaelManaged RMCrypto = new RijndaelManaged();

 

CryptoStream cs = new CryptoStream(fsCrypt,RMCrypto.CreateEncryptor(key, key),CryptoStreamMode.Write);

 

FileStream fsIn = new FileStream(inputFile, FileMode.Open);

 

int data;

while ((data = fsIn.ReadByte()) != -1)

cs.WriteByte((byte)data);

fsIn.Close();

cs.Close();

fsCrypt.Close();