Encrypt (AES) And Decrypt In .NET?

I encrypted(AES) data with Javascript . I want to decrypt this in c#. While decrypting in c3 I am getting error "length of the data to be decrypt is not valid" For encryption in Javascript I am using following code,

var
randomnumber="91860F52E5C3A09BA3B827F28070E08D";
var encByteData = byteArrayToHex(rijndaelEncrypt(strFileContent, hex2s(randomnumber), "CBC"));

For the decryption in c# I am using following code,

Calling function,

DecryptData(byteArraySignData, "91860F52E5C3A09BA3B827F28070E08D",
ref byteArrayDecryptedData);

[code]....