(Classic ASP) Binary Certificate Extension Data

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Demonstrates how to binary certificate extension data by OID.

The GetExtensionBd method is added in Chilkat v9.5.0.96.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = Server.CreateObject("Chilkat.Cert")

success = cert.LoadFromFile("qa_data/certs/testCert.cer")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set bd = Server.CreateObject("Chilkat.BinData")

' The particular certificate in this test contains the following extensions

oid = "1.2.250.1.71.1.2.5"
success = cert.GetExtensionBd(oid,bd)
If (success = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & bd.GetEncoded("hex_lower")) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.2"
success = cert.GetExtensionBd(oid,bd)
If (success = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & bd.GetEncoded("hex_lower")) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.3"
success = cert.GetExtensionBd(oid,bd)
If (success = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & bd.GetEncoded("hex_lower")) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.7"
success = cert.GetExtensionBd(oid,bd)
If (success = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & bd.GetEncoded("hex_lower")) & "</pre>"
End If

oid = "1.2.250.1.71.4.2.5"
success = cert.GetExtensionBd(oid,bd)
If (success = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & bd.GetEncoded("hex_lower")) & "</pre>"
End If

' Sample output:
' 1.2.250.1.71.1.2.5: 040180
' 1.2.250.1.71.1.2.2: 020100
' 1.2.250.1.71.1.2.3: 1315383032353030303030312f32393030303539313432
' 1.2.250.1.71.1.2.7: 02010a
' 1.2.250.1.71.4.2.5: 30060c04534d3236

' The above binary values are actually ASN.1
' You can get the ASN.1 decoed by calling GetExtensionAsXml to get it in XML format,
' and then you extract the values from the XML.

oid = "1.2.250.1.71.1.2.5"
strXml = cert.GetExtensionAsXml(oid)
If (cert.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & strXml) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.2"
strXml = cert.GetExtensionAsXml(oid)
If (cert.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & strXml) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.3"
strXml = cert.GetExtensionAsXml(oid)
If (cert.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & strXml) & "</pre>"
End If

oid = "1.2.250.1.71.1.2.7"
strXml = cert.GetExtensionAsXml(oid)
If (cert.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & strXml) & "</pre>"
End If

oid = "1.2.250.1.71.4.2.5"
strXml = cert.GetExtensionAsXml(oid)
If (cert.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & strXml) & "</pre>"
End If

' Sample output:
' 1.2.250.1.71.1.2.5: <octets>gA==</octets>
' 1.2.250.1.71.1.2.2: <int>00</int>
' 1.2.250.1.71.1.2.3: <printable>8025000001/2900059142</printable>
' 1.2.250.1.71.1.2.7: <int>0A</int>
' 1.2.250.1.71.4.2.5: <sequence><utf8>SM26</utf8></sequence>

' "gA==" is the base64 encoded byte values
' "0A" is hex for decimal 1

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