B4X

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.

B4X

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 ChilkatPkcs11
pkcs11.Initialize

'  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.InitializeLibrary
If success = False Then
    Log(pkcs11.LastErrorText)
    Return
End If


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

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


Log("PKCS11 session successfully opened and closed.")