(SQL Server) Get Certificate Subject Part by Name or OID

Demonstrates the GetSubjectPart method where a name or OID can be passed.

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @cert int
    -- Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @cert, 'LoadByCommonName', @success OUT, 'myCert'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- This example demonstrates getting the SERIALNUMBER part of the subject,
    -- if one such part exists in the cert's subject.
    -- Not too many certicates include the serial number in the Subject.
    -- (Chilean issued certificates for SII is one such case where the SERIALNUMBER part exists within the Subject.)
    DECLARE @serialNum nvarchar(4000)
    EXEC sp_OAMethod @cert, 'GetSubjectPart', @serialNum OUT, 'SERIALNUMBER'
    EXEC sp_OAGetProperty @cert, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN

        PRINT 'No SERIALNUMBER part exists.'
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END


    PRINT @serialNum

    -- We could also get the part by the OID.
    -- See https://oidref.com/2.5.4.5 for a list of OID's in the 2.5.4.* range..
    -- The OID for SERIALNUMBER is "2.5.4.5"
    EXEC sp_OAMethod @cert, 'GetSubjectPart', @serialNum OUT, '2.5.4.5'
    EXEC sp_OAGetProperty @cert, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN

        PRINT 'No SERIALNUMBER part exists.'
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END


    PRINT @serialNum

    EXEC @hr = sp_OADestroy @cert


END
GO