B4X

ScMinidriver - List Certificates on a Smart Card or USB Token

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Gets a list of certificates contained on a smart card or USB token. B4X

Dim success As Boolean = False

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

Dim scmd As ChilkatScMinidriver
scmd.Initialize

'  Reader names (smart card readers or USB tokens) can be discovered
'  via PCSC List Readers or PCSC Find Smart Cards
Dim readerName As String = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0"
success = scmd.AcquireContext(readerName)
If success = False Then
    Log(scmd.LastErrorText)
    Return
End If


Dim stCerts As ChilkatStringTable
stCerts.Initialize

'  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.
Dim certPart As String = "subjectCN"

success = scmd.ListCerts(certPart, stCerts)
If success = False Then
    Log(scmd.LastErrorText)
    Return
End If


Dim numCerts As Int = stCerts.Count
Dim i As Int = 0
Do While i < numCerts
    Log(i & ": " & stCerts.StringAt(i))
    i = i + 1
Loop

'  Delete the context when finished with the card.
success = scmd.DeleteContext
If success = False Then
    Log(scmd.LastErrorText)
End If