Xbase++

ScMinidriver - List Certificates on a Smart Card or USB Token

See more ScMinidriver Examples

Gets a list of certificates contained on a smart card or USB token. Xbase++

LOCAL nSuccess
LOCAL oScmd
LOCAL cReaderName
LOCAL oStCerts
LOCAL cCertPart
LOCAL nNumCerts
LOCAL i

nSuccess := 0

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

oScmd := CreateObject("Chilkat.ScMinidriver")

//  Reader names (smart card readers or USB tokens) can be discovered
//  via PCSC List Readers or PCSC Find Smart Cards
cReaderName := "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0"
nSuccess := oScmd:AcquireContext(cReaderName)
IF (nSuccess == 0)
    ? oScmd:LastErrorText
    oScmd:destroy()
    RETURN
ENDIF

oStCerts := CreateObject("Chilkat.StringTable")

//  We can choose one of the following items of information to get for each certificate:
//  "subjectDN" -- Return the full distinguished name of the cert.
//  "subjectDN_withTags" -- Same as above, but in a format that includes the subject part tags, such as the "CN=" in "CN=something"
//  "subjectCN" -- Return just the common name part of the certificate's subject.
//  "serial" -- Return the certificate serial number.
//  "serial:issuerCN" -- return the certificate serial number + the issuer's common name, delimited with a colon char.
cCertPart := "subjectCN"

nSuccess := oScmd:ListCerts(cCertPart, oStCerts)
IF (nSuccess == 0)
    ? oScmd:LastErrorText
    oScmd:destroy()
    oStCerts:destroy()
    RETURN
ENDIF

nNumCerts := oStCerts:Count
i := 0
DO WHILE i < nNumCerts
    ? Str(i) + ": " + oStCerts:StringAt(i)
    i := i + 1
ENDDO

//  Delete the context when finished with the card.
nSuccess := oScmd:DeleteContext()
IF (nSuccess == 0)
    ? oScmd:LastErrorText
ENDIF

oScmd:destroy()
oStCerts:destroy()