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Convert Java KeyStore to PEM

See more Java KeyStore (JKS) Examples

Loads a Java keystore file and saves the trusted certificate entries to a PEM file.

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Local $bSuccess = False

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

$oJks = ObjCreate("Chilkat.JavaKeyStore")

Local $sJksPassword = "myJksPassword"

; 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 that the keystore has not been modified.
$bSuccess = $oJks.LoadFile($sJksPassword,"/someDir/keyStore.jks")
If ($bSuccess = False) Then
    ConsoleWrite($oJks.LastErrorText & @CRLF)
    Exit
EndIf

; Open/create the output PEM file. 
; This example uses Chilkat's file access class for writing the output file.
; You may replace the file I/O lines of code with whatever is most convenient for you.
$oFac = ObjCreate("Chilkat.FileAccess")
$bSuccess = $oFac.OpenForWrite("/pemFiles/caCerts.pem")
If ($bSuccess = False) Then
    ConsoleWrite($oFac.LastErrorText & @CRLF)
    Exit
EndIf

Local $iNumCerts = $oJks.NumTrustedCerts

$oCert = ObjCreate("Chilkat.Cert")
Local $sPem

; Iterate over the trusted certs, get the PEM for each,
; and append it to the output file.
Local $i = 0
While $i < $iNumCerts
    $oJks.TrustedCertAt($i,$oCert)

    ; Get the certificate in PEM format.  
    $sPem = $oCert.ExportCertPem()

    ; Append the PEM string to the open file.
    $bSuccess = $oFac.AppendText($sPem,"utf-8")
    If ($bSuccess <> True) Then
        ConsoleWrite($oFac.LastErrorText & @CRLF)
        Exit
    EndIf

    $i = $i + 1
Wend

; Close the output file.
$oFac.FileClose 

ConsoleWrite("Trusted certificates saved to PEM." & @CRLF)