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Get Text Certificate Extensions by OID

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Demonstrates how to get text certificate extensions by OID. In this example, we have a certificate with the following OID extensions: 1.3.6.1.4.1.49952.5.8.5, 1.3.6.1.4.1.49952.5.8.6, 1.3.6.1.4.1.49952.5.8.7.

Most certificate extensions have values that are ASN.1 (binary). For the majority of cases, an application should call GetExtensionAsXml. For extensions known to have text values (such as the OIDs listed above), an application can instead call GetExtensionAsText.

The GetExtensionAsText method is added in Chilkat v9.5.0.89.

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Local $bSuccess = False

$oCert = ObjCreate("Chilkat.Cert")

$bSuccess = $oCert.LoadFromFile("qa_data/certs/PUH9.cer")
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

Local $sOid = "1.3.6.1.4.1.49952.5.8.5"
Local $str = $oCert.GetExtensionAsText($sOid)
If ($oCert.LastMethodSuccess = True) Then
    ConsoleWrite($sOid & ": " & $str & @CRLF)
EndIf

$sOid = "1.3.6.1.4.1.49952.5.8.6"
$str = $oCert.GetExtensionAsText($sOid)
If ($oCert.LastMethodSuccess = True) Then
    ConsoleWrite($sOid & ": " & $str & @CRLF)
EndIf

$sOid = "1.3.6.1.4.1.49952.5.8.7"
$str = $oCert.GetExtensionAsText($sOid)
If ($oCert.LastMethodSuccess = True) Then
    ConsoleWrite($sOid & ": " & $str & @CRLF)
EndIf