Xojo Plugin

PKCS11 Find Private Key by Label

See more PKCS11 Examples

Demonstrates how to find a private key based on a user-specified label.

Note: This example requires Chilkat v9.5.0.96 or later.

Xojo Plugin

Dim success As Boolean
success = 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

// Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
// For example:
pkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS11.dll"

// Use your HSM's PIN.
Dim pin As String
pin = "0000"

// Normal user = 1
Dim userType As Int32
userType = 1

// Establish a logged-on user session with the HSM.
success = pkcs11.QuickSession(userType,pin)
If (success = False) Then
    System.DebugLog(pkcs11.LastErrorText)
    Return
End If

// Provide a template to find a PKCS11 object.
Dim jsonTemplate As New Chilkat.JsonObject

// Find an RSA private key with the label "MySshKey".
// Here's an example of how the key was originally imported: 
// PKCS11 Import SSH Key
success = jsonTemplate.UpdateString("class","private_key")
success = jsonTemplate.UpdateString("key_type","rsa")
success = jsonTemplate.UpdateString("label","MySshKey")

Dim privKeyHandle As UInt32
privKeyHandle = pkcs11.FindObject(jsonTemplate)
If (privKeyHandle = 0) Then
    System.DebugLog(pkcs11.LastErrorText)
    Return
End If

// The private key handle is only valid during the PKCS11 session.
// If you wish to use the private key in another PKCS11 session,
// you'll first need to find it.  See:  
System.DebugLog("private key handle: " + Str(privKeyHandle))

// Do whatever you wish with the private key handle...
// ...
// ...

success = pkcs11.Logout()
success = pkcs11.CloseSession()