VB.NET

PKCS11 Sessions

See more PKCS11 Examples

Sample code showing how to open a PKCS11 session and then later close it.

Note: This example requires Chilkat v9.5.0.88 or later.

VB.NET

Dim success As Boolean = False

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

Dim pkcs11 As New Chilkat.Pkcs11

' Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
' or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
pkcs11.SharedLibPath = "ShuttleCsp11_3003.dll"

' Starting in Chilkat v9.5.0.96, there is a shorter way to establish
' a PKCS11 session with login.
' The QuickSession method was added in v9.5.0.96 and is the equivalent of 
' calling Initialize, OpenSession, and Login.  

success = pkcs11.Initialize()
If (success = False) Then
    Debug.WriteLine(pkcs11.LastErrorText)
    Exit Sub
End If


' Pass -1 for the slotID to open a session on the first non-empty slot.
Dim slotID As Integer = -1

' Open a read/write session.
Dim readWrite As Boolean = True
success = pkcs11.OpenSession(slotID,readWrite)
If (success = False) Then
    Debug.WriteLine(pkcs11.LastErrorText)
    Exit Sub
End If


' Do whatever is needed...
' ...
' ...

' When finished, close the session.
' It is important to close the session (memory leaks will occur if the session is not properly closed).

success = pkcs11.CloseSession()
If (success = False) Then
    Debug.WriteLine(pkcs11.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("PKCS11 session successfully opened and closed.")