Question Deserializing an Object

[Canning_s]

I am having trouble deserializing an object. Here is the error:

Failed to deserialize. Reason: End of Stream encountered before parsing was completed

Here is my code:

Imports System.IOImports System.Security.Cryptography
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Text


Module TestModEncryption


    Public Sub SaveEncryptedObjectToFile(FileName As String, Item As Object)
        Dim fs As FileStream
        Dim encryptor As CryptoStream


        Dim formatter As New BinaryFormatter


        Dim password As String = "MyPassword"
        Dim salt As String = "InitialVector123"


        Dim AES As AesManaged = New AesManaged
        AES.Padding = PaddingMode.None
        AES.Mode = CipherMode.CBC


        Dim HashAlgorithm As String = "SHA1" 'Can be SHA1 or MD5
        Dim PasswordIterations As Integer = 2
        Dim InitialVector As String = "InitialVector123" 'This should be a string of 16 ASCII characters.
        Dim KeySize As Integer = 256 'Can be 128, 192, or 256.


        Dim InitialVectorBytes As Byte() = Encoding.ASCII.GetBytes(InitialVector)
        Dim SaltValueBytes As Byte() = Encoding.ASCII.GetBytes(salt)
        Dim DerivedPassword As New Rfc2898DeriveBytes(password, SaltValueBytes, PasswordIterations)
        Dim KeyBytes As Byte() = DerivedPassword.GetBytes(CInt(KeySize / 8))


        Dim encryptTransf As ICryptoTransform = AES.CreateEncryptor(KeyBytes, InitialVectorBytes)


        fs = New FileStream(FileName, FileMode.Create)
        encryptor = New CryptoStream(fs, encryptTransf, CryptoStreamMode.Write)


        Try
            formatter.Serialize(encryptor, Item)
        Catch e As SerializationException
            Console.WriteLine("Failed to serialize. Reason: " & e.Message)
            Throw
        Finally
            fs.Close()
        End Try
    End Sub


    Public Function OpenEncryptedObjectFromFile(FileName As String) As Object
        Dim fs As New FileStream(FileName, FileMode.Open)
        Dim decryptor As CryptoStream


        Dim ItemToReturn As New Object


        Dim password As String = "MyPassword"
        Dim salt As String = "InitialVector123"


        Dim AES As AesManaged = New AesManaged
        AES.Padding = PaddingMode.None
        AES.Mode = CipherMode.CBC


        Dim HashAlgorithm As String = "SHA1" 'Can be SHA1 or MD5
        Dim PasswordIterations As Integer = 2
        Dim InitialVector As String = "InitialVector123" 'This should be a string of 16 ASCII characters.
        Dim KeySize As Integer = 256 'Can be 128, 192, or 256.


        Dim InitialVectorBytes As Byte() = Encoding.ASCII.GetBytes(InitialVector)
        Dim SaltValueBytes As Byte() = Encoding.ASCII.GetBytes(salt)
        Dim DerivedPassword As New Rfc2898DeriveBytes(password, SaltValueBytes, PasswordIterations)
        Dim KeyBytes As Byte() = DerivedPassword.GetBytes(CInt(KeySize / 8))


        Dim decryptTrans As ICryptoTransform = AES.CreateDecryptor(KeyBytes, InitialVectorBytes)


        Try
            Dim formatter As New BinaryFormatter


            decryptor = New CryptoStream(fs, decryptTrans, CryptoStreamMode.Read)
            ItemToReturn = DirectCast(formatter.Deserialize(decryptor), Object)
            Return ItemToReturn
        Catch e As SerializationException
            MsgBox("Failed to deserialize. Reason: " & e.Message)
            Return Nothing
            'Throw
        Finally
            fs.Close()
        End Try
    End Function


End Module