(Visual Basic 6.0) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim success As Long
success = 0

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

Dim pem As New ChilkatPem

' Load the PEM from a file.
' If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
Dim password As String
password = "myPassword"
success = pem.LoadPemFile("../myPemFiles/myPem.pem",password)
If (success = 0) Then
    Debug.Print pem.LastErrorText
    Exit Sub
End If

' Note: If the app already has the PEM pre-loaded in a string variable, then load it 
' by calling LoadPem instead.  
Dim pemContent As String
pemContent = "... the PEM contents ..."
success = pem.LoadPem(pemContent,password)
' Check for success as before..

' Iterate over the private keys.
Dim numPrivateKeys As Long
numPrivateKeys = pem.NumPrivateKeys
Dim i As Long
i = 0

Dim privKey As New PrivateKey
Do While i < numPrivateKeys
    success = pem.PrivateKeyAt(i,privKey)
    Debug.Print "Private Key " & i & " is " & privKey.BitLength & " in length"
    i = i + 1
Loop

' Iterate over the certificates.
Dim cert As New ChilkatCert
Dim numCerts As Long
numCerts = pem.NumCerts
i = 0
Do While i < numCerts
    success = pem.CertAt(i,cert)
    Debug.Print "Certificate " & i & " : " & cert.SubjectDN
    i = i + 1
Loop