(Lianja) 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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loCert = createobject("CkCert")

llSuccess = loCert.LoadFromFile("qa_data/certs/PUH9.cer")
if (llSuccess = .F.) then
    ? loCert.LastErrorText
    release loCert
    return
endif

lcOid = "1.3.6.1.4.1.49952.5.8.5"
lcStr = loCert.GetExtensionAsText(lcOid)
if (loCert.LastMethodSuccess = .T.) then
    ? lcOid + ": " + lcStr
endif

lcOid = "1.3.6.1.4.1.49952.5.8.6"
lcStr = loCert.GetExtensionAsText(lcOid)
if (loCert.LastMethodSuccess = .T.) then
    ? lcOid + ": " + lcStr
endif

lcOid = "1.3.6.1.4.1.49952.5.8.7"
lcStr = loCert.GetExtensionAsText(lcOid)
if (loCert.LastMethodSuccess = .T.) then
    ? lcOid + ": " + lcStr
endif



release loCert