Visual Basic 6.0

Load Certs from Java KeyStore into Trusted CA Roots

See more Java KeyStore (JKS) Examples

Demonstrates how to load a Java KeyStore containing CA root certificates that are to be trusted by the application. This can be done once at the beginning of an application, and then the trusted roots can be activated so that only these root CA certs are trusted by the application for any TLS connections. Visual Basic 6.0

Dim success As Long
success = 0

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

Dim jks As New ChilkatJavaKeyStore
jks.VerboseLogging = 1

Dim password As String
password = "myPassword"
success = jks.LoadFile(password,"qa_data/jks/entrust_caCerts.jks")
If (success <> 1) Then
    Debug.Print jks.LastErrorText
    Exit Sub
End If

Dim troots As New ChilkatTrustedRoots
troots.VerboseLogging = 1

success = troots.AddJavaKeyStore(jks)
If (success <> 1) Then
    Debug.Print troots.LastErrorText
    Exit Sub
End If

Dim i As Long
i = 0
Dim numCerts As Long
numCerts = troots.NumCerts
Do While (i < numCerts)
    Dim cacert As ChilkatCert
    Set cacert = troots.GetCert(i)
    Debug.Print i & ": " & cacert.SubjectDN

    i = i + 1
Loop

' Activate this specific set of trusted roots.
success = troots.Activate()
If (success <> 1) Then
    Debug.Print troots.LastErrorText
    Exit Sub
End If

' Output:

' 0: C=US, O=Entrust.net, OU=www.entrust.net/CPS incorp. by ref. (limits liab.), OU=(c) 1999 Entrust.net Limited, CN=Entrust.net Secure Server Certification Authority
' 1: O=Entrust.net, OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.), OU=(c) 1999 Entrust.net Limited, CN=Entrust.net Certification Authority (2048)
' 2: C=US, O="Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, OU="(c) 2006 Entrust, Inc.", CN=Entrust Root Certification Authority