(Xojo Plugin) Load Java KeyStore and Access Contents

Loads a Java keystore file and iterates over the contents. A Java keystore (.jks) file can contain one or more trusted root certificate entries and/or one or more private key entries. Each private key entry includes an associated certificate chain.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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

Dim jks As New Chilkat.JavaKeyStore

//  Load the Java keystore from a file.  The JKS file password is used
//  to verify the keyed digest that is found at the very end of the keystore.
//  It verifies there has been no tampering with the file.
Dim success As Boolean
success = jks.LoadFile("jksFilePassword","/someDir/keyStore.jks")
If (success <> True) Then
    System.DebugLog(jks.LastErrorText)
    Return
End If

//  Find out how many of each type of entry:
Dim numTrustedCerts As Int32
numTrustedCerts = jks.NumTrustedCerts
Dim numPrivateKeys As Int32
numPrivateKeys = jks.NumPrivateKeys

Dim cert As Chilkat.Cert
Dim alias As String

Dim i As Int32

//  For each trusted certificate, access it by getting
//  it as a cert object.  Also get the alias associated with the certificate.
System.DebugLog("Trusted Certs:")
i = 0
While i < numTrustedCerts
    cert = jks.GetTrustedCert(i)
    System.DebugLog(jks.GetTrustedCertAlias(i) + ": " + cert.SubjectDN)

    i = i + 1
Wend

Dim privKey As Chilkat.PrivateKey
Dim certChain As Chilkat.CertChain

//  For each private key entry, get the private key and
//  the associated certificate chain.
//  Each private key is password protected.  Usually it is the same
//  password as used for the keyed digest of the entire JKS.
//  However, this does not have to be.  The password is passed
//  here to handle the possibility of each private key requiring
//  a different password.
System.DebugLog("Private Keys:")
i = 0
While i < numPrivateKeys
    privKey = jks.GetPrivateKey("jksFilePassword",i)
    System.DebugLog(jks.GetPrivateKeyAlias(i))
    certChain = jks.GetCertChain(i)

    //  The 1st certificate in the chain is the one associated with the private key.
    cert = certChain.GetCert(0)
    System.DebugLog(cert.SubjectDN)

    i = i + 1
Wend