(AutoIt) Duplicate Java Verify RSA Signature

Demonstrates how to duplicate a snippet of Java code that verifies an RSA signature.

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

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

; This example duplicates the following Java code:

; import com.sun.org.apache.xml.internal.security.utils.Base64;  
; import java.io.ByteArrayInputStream;  
; import java.security.PublicKey;  
; import java.security.Signature;  
; import java.security.cert.CertificateFactory;  
; import java.security.cert.X509Certificate;  
; public class validateSazetak {  
;   public static void main(String[] args) {  
;   String signatureAlgorithm = "SHA256withRSA";  
;   String base64DataToBeSigned = "Hlp...LE4=";  
;   String base64Certificate = "MII...TlQ==";  
;   String base64Signature = "I00...pZA==";  
;   try {  
;       CertificateFactory cf;  
;       X509Certificate certificate = null;  
;       cf = CertificateFactory.getInstance("X.509");  
;       certificate = (X509Certificate) cf.generateCertificate(new 
;       ByteArrayInputStream(Base64.decode(base64Certificate)));  
;        
;       Signature signature = Signature.getInstance(signatureAlgorithm, "SunRsaSign");  
;       PublicKey pk = (PublicKey) certificate.getPublicKey();  
;       signature.initVerify(pk);  
;        
;       byte[] hashBytes = Base64.decode(base64DataToBeSigned);  
;       signature.update(hashBytes);  
;        
;       byte[] sigBytes = Base64.decode(base64Signature);  
;       boolean validity = signature.verify(sigBytes);  
;       System.out.println("Is valid signature:" + validity);  
;     } catch (Exception e) {  
;         System.out.println(e);  
;     }  
; } 

Local $sBase64DataToBeSigned = "Hlp...LE4="
Local $sBase64Certificate = "MII...TlQ=="
Local $sBase64Signature = "I00...pZA=="

$oCert = ObjCreate("Chilkat.Cert")
Local $bSuccess = $oCert.LoadFromBase64($sBase64Certificate)
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

$oRsa = ObjCreate("Chilkat.Rsa")

$bSuccess = $oRsa.SetX509Cert($oCert,False)
If ($bSuccess = False) Then
    ConsoleWrite($oRsa.LastErrorText & @CRLF)
    Exit
EndIf

$oRsa.EncodingMode = "base64"
$bSuccess = $oRsa.VerifyStringENC($sBase64DataToBeSigned,"sha256",$sBase64Signature)
If ($bSuccess = False) Then
    ConsoleWrite($oRsa.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Signature verified." & @CRLF)