(SQL Server) Get Certificate Policy

See more Certificates Examples

Demonstrates how to get a certificate's policy OIDs (if any)

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, 'LoadFromFile', @success OUT, 'qa_data/certs/sample.cer'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- The certificatePolicies OID is 2.5.29.32
    DECLARE @oid nvarchar(4000)
    SELECT @oid = '2.5.29.32'
    DECLARE @strXml nvarchar(4000)
    EXEC sp_OAMethod @cert, 'GetExtensionAsXml', @strXml OUT, @oid
    EXEC sp_OAGetProperty @cert, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 1
      BEGIN

        PRINT @strXml

        -- Sample result:
        -- <sequence><sequence><oid>2.16.840.1.101.2.1.11.39</oid></sequence></sequence>

        DECLARE @xml int
        -- Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
        EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml OUT

        EXEC sp_OAMethod @xml, 'LoadXml', @success OUT, @strXml

        EXEC sp_OAMethod @xml, 'GetChildContent', @sTmp0 OUT, 'sequence|oid'
        PRINT 'Policy OID = ' + @sTmp0
      END

    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @xml


END
GO