Client Verification using ASP.net

[141980]

is anyone know anything how to use asp.net in order to make digital signing,verifying,encryption.

do u have any sample code in order to do these tasks..if u have..please do reply this message..

thank u in advance

 

[Isadore]

141: Haven't worked in that area, have you seen Walethers(2004) ASP.NET - Unleashed? You might consider getting that at the Book store - he goes into a lot of that kind of detail with plenty of references.

For example, I'm looking at the book now; he has a few topics listed in the Appendix on 'digital signatures'.

He lists some code used to generate digital signatures, q.v.,

<script runat="server">

Function Convert2ByteArray(srInput As String) As Byte()
 Dim intCounter As Integer
 Dim arrChar As Char()

 arrChar = strInput.ToCharArray()
 Dim arrByte(arrChar.Length-1) As Byte
 For intCounter = 0 to arrByte.Length-1
  arrByte(intCounter) = Convert.ToByte(arChar(intCounter()
 Next
 Return arrByte
End Function

Sub Button_Click(..)
 Dim arrInput As Byte()
 Dim objDSA As DSACryptoServiceProvider
 Dim strPublicKey As String
 Dim arrDigitalSignature As Byte()

 arrInput = Convert2ByteArray(txtInput.Text)
 objDSA = New DSACryptoSericeProvider()
 strPublicKey = objDSA.ToXMLString(False)
 arrDigitalSignature = objDSA.SignData(arrInput)
 txtSignature.Text = BitConverter.ToSTring(arrDigitalSignature)
 txtPublicKey.Text = strPublicKey
End Sub
</script>

...anyway, lots of materials in this particlur book; one of the best I've seen.