Xbase++

PKCS11 Find All Certificates on Smart Card or USB Token

See more PKCS11 Examples

Sample code showing how to examine all the certificates on a smart card or USB token.

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

Xbase++

LOCAL nSuccess
LOCAL oPkcs11
LOCAL nSlotID
LOCAL nReadWrite
LOCAL nUserType
LOCAL cPin
LOCAL nNumCerts
LOCAL cPrivateKeyNote
LOCAL oCert
LOCAL i

nSuccess := 0

//  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.

oPkcs11 := CreateObject("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)
oPkcs11:SharedLibPath := "aetpkss1.dll"

nSuccess := oPkcs11:Initialize()
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    oPkcs11:destroy()
    RETURN
ENDIF

//  Pass -1 for the slotID to open a session on the first non-empty slot.
nSlotID := -1

//  Open a session.
nReadWrite := 1
nSuccess := oPkcs11:OpenSession(nSlotID, nReadWrite)
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    oPkcs11:destroy()
    RETURN
ENDIF

//  Make it an authenticated session by calling Login.
//  
//  If we don't authenticate, then we won't be able to see the private keys, and thus
//  we won't know which certificates have an associated private key stored on the smart card.

//  The smart card PIN is passed to the Login method.
//  userType 1 indicates a "Normal User".
nUserType := 1
cPin := "0000"
nSuccess := oPkcs11:Login(nUserType, cPin)
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    nSuccess := oPkcs11:CloseSession()
    oPkcs11:destroy()
    RETURN
ENDIF

//  Call FindAllCerts to find all certificates on the smart card or USB token.
nSuccess := oPkcs11:FindAllCerts()
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    nSuccess := oPkcs11:CloseSession()
    oPkcs11:destroy()
    RETURN
ENDIF

//  The NumCerts property is set by FindAllCerts.
nNumCerts := oPkcs11:NumCerts
? "Number of certs: " + Str(nNumCerts)

oCert := CreateObject("Chilkat.Cert")
i := 0
DO WHILE i < nNumCerts
    oPkcs11:GetCert(i, oCert)
    cPrivateKeyNote := ""
    IF (oCert:HasPrivateKey() == 1)
        cPrivateKeyNote := "(has private key)"
    ENDIF

    ? Str(i) + ": " + cPrivateKeyNote + " " + oCert:SubjectDN
    ? Str(i) + ": issuer: " + oCert:IssuerDN
    ? "----"
    i := i + 1
ENDDO

//  Revert to an unauthenticated session by calling Logout.
nSuccess := oPkcs11:Logout()
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    nSuccess := oPkcs11:CloseSession()
    oPkcs11:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  When finished, close the session.
//  It is important to close the session (memory leaks will occur if the session is not properly closed).
nSuccess := oPkcs11:CloseSession()
IF (nSuccess == 0)
    ? oPkcs11:LastErrorText
    oPkcs11:destroy()
    oCert:destroy()
    RETURN
ENDIF

? "Success."

oPkcs11:destroy()
oCert:destroy()