(Lianja) 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.

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// 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.

loPkcs11 = createobject("CkPkcs11")

// Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
// For example:
loPkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS11.dll"

// Use your HSM's PIN.
lcPin = "0000"

// Normal user = 1
lnUserType = 1

// Establish a logged-on user session with the HSM.
llSuccess = loPkcs11.QuickSession(lnUserType,lcPin)
if (llSuccess = .F.) then
    ? loPkcs11.LastErrorText
    release loPkcs11
    return
endif

// Provide a template to find a PKCS11 object.
loJsonTemplate = createobject("CkJsonObject")

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

lnPrivKeyHandle = loPkcs11.FindObject(loJsonTemplate)
if (lnPrivKeyHandle = 0) then
    ? loPkcs11.LastErrorText
    release loPkcs11
    release loJsonTemplate
    return
endif

// 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:  
? "private key handle: " + str(lnPrivKeyHandle)

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

loPkcs11.Logout()
loPkcs11.CloseSession()


release loPkcs11
release loJsonTemplate