(SQL Server) Subject Alternative Name for ICP Brasil Certs

Demonstrates how to access the multiple names contained in the Subject Alternative Name of a certificate. This example is for an ICP Brasil certificate.

For more information, see http://oidref.com/2.16.76.1.3

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
    -- 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/testIcpBrasil.cer'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- If the cert's Subject Alternative Name contains multiple values, each specified by an OID,
    -- then the Rfc822Name property returns XML.
    DECLARE @subjectAltNameXml nvarchar(4000)
    EXEC sp_OAGetProperty @cert, 'Rfc822Name', @subjectAltNameXml OUT


    PRINT @subjectAltNameXml

    -- Here's a sample of the subjectAltNameXml:

    -- <SubjectAltName>
    --     <name type="oid" oid="2.16.76.1.3.4">290999653223955019700000000000000000000150424SRJUXPTS</name>
    --     <name type="oid" oid="2.16.76.1.3.2">JOAO SILVA</name>
    --     <name type="oid" oid="2.16.76.1.3.3">02408939000115</name>
    --     <name type="oid" oid="2.16.76.1.3.7">000000000000</name>
    -- </SubjectAltName>

    -- The XML can be parsed like this:

    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, @subjectAltNameXml

    DECLARE @oid nvarchar(4000)

    DECLARE @name nvarchar(4000)

    DECLARE @i int
    SELECT @i = 0
    DECLARE @count_i int
    EXEC sp_OAMethod @xml, 'NumChildrenHavingTag', @count_i OUT, 'name'
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OASetProperty @xml, 'I', @i
        EXEC sp_OAMethod @xml, 'ChilkatPath', @oid OUT, 'name[i]|(oid)'
        EXEC sp_OAMethod @xml, 'GetChildContent', @name OUT, 'name[i]'


        PRINT @oid + ': ' + @name
        SELECT @i = @i + 1
      END

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


END
GO