B4X Requires Chilkat v11.0.0+

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. B4X

Dim success As Boolean = False

'  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 ChilkatJavaKeyStore
jks.Initialize
Dim password As String = "secret"
success = jks.LoadFile(password, "qa_data/jks/test_secret.jks")
If success = False Then
    Log(jks.LastErrorText)
    Return
End If


'  Make sure we have a private key.
If jks.NumPrivateKeys < 1 Then
    Log("No private key available.")
    Return
End If


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

Dim chain As ChilkatCertChain
chain.Initialize
success = jks.CertChainAt(0, chain)
If success = False Then
    Log(jks.LastErrorText)
    Return
End If


Dim cert As ChilkatCert
cert.Initialize("cert")
success = chain.CertAt(0, cert)
If success = False Then
    Log(chain.LastErrorText)
    Return
End If


'  Verify again that this cert has a private key.
If cert.HasPrivateKey <> True Then
    Log("Certificate has no associated private key.")
    Return
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 ChilkatCrypt2
crypt.Initialize("crypt")
success = crypt.SetSigningCert(cert)
If success = False Then
    Log(crypt.LastErrorText)
    Return
End If


'  ...
'  ...