Xbase++

Get Text Certificate Extensions by OID

See more Certificates Examples

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.

Xbase++

LOCAL nSuccess
LOCAL oCert
LOCAL cOid
LOCAL cStr

nSuccess := 0

oCert := CreateObject("Chilkat.Cert")

nSuccess := oCert:LoadFromFile("qa_data/certs/PUH9.cer")
IF (nSuccess == 0)
    ? oCert:LastErrorText
    oCert:destroy()
    RETURN
ENDIF

cOid := "1.3.6.1.4.1.49952.5.8.5"
cStr := oCert:GetExtensionAsText(cOid)
IF (oCert:LastMethodSuccess == 1)
    ? cOid + ": " + cStr
ENDIF

cOid := "1.3.6.1.4.1.49952.5.8.6"
cStr := oCert:GetExtensionAsText(cOid)
IF (oCert:LastMethodSuccess == 1)
    ? cOid + ": " + cStr
ENDIF

cOid := "1.3.6.1.4.1.49952.5.8.7"
cStr := oCert:GetExtensionAsText(cOid)
IF (oCert:LastMethodSuccess == 1)
    ? cOid + ": " + cStr
ENDIF

oCert:destroy()