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(Excel) Get the Certificate with Private Key from a Java KeyStore

See more Java KeyStore (JKS) Examples

Load a Chilkat certificate object from a Java KeyStore.

Download Excel Class Modules

Chilkat Excel Class Modules

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

' Most of the time a .jks contains one certificate with it's associated private key.
' (Similar to how a .pfx/.p12 usually contains a particular certificate with private key.)
' This example demonstrates how to get the certificate with private key such that it can be used
' by other Chilkat classes wherever a cert w/ private key is needed.
Dim jks As Chilkat.JavaKeyStore
Set jks = Chilkat.NewJavaKeyStore

password = "secret"

success = jks.LoadFile(password,"qa_data/jks/test_secret.jks")
If (success <> True) Then
    Debug.Print jks.LastErrorText
    Exit Sub
End If

' Make sure we have a private key.
If (jks.NumPrivateKeys < 1) Then
    Debug.Print "No private key available."
    Exit Sub
End If

' -------------------------------------------------------------------------
' Get the certificate chain associated with the 1st (and probably only) private key in the JKS.

Set chain = jks.GetCertChain(0)
If (jks.LastMethodSuccess <> True) Then
    Debug.Print jks.LastErrorText
    Exit Sub
End If


Set cert = chain.GetCert(0)
If (chain.LastMethodSuccess <> True) Then
    Debug.Print chain.LastErrorText

    Exit Sub
End If

' Verify again that this cert has a private key.
If (cert.HasPrivateKey() <> True) Then
    Debug.Print "Certificate has no associated private key."

    Exit Sub
End If

' We now have the cert object with it's associated private key, and it can be used in other Chilkat classes where needed.
' For example..

Dim crypt As Chilkat.Crypt2
Set crypt = Chilkat.NewCrypt2
success = crypt.SetSigningCert(cert)
If (success = False) Then
    Debug.Print crypt.LastErrorText
    Exit Sub
End If

' ...
' ...


 

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