SQL Server

DSA Get Key as XML

Gets the DSA key in XML format. SQL Server

-- 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 @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @dsa int
    EXEC @hr = sp_OACreate 'Chilkat.Dsa', @dsa OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Generate a new 2048 bit DSA key.
    EXEC sp_OAMethod @dsa, 'GenKey', @success OUT, 2048
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @dsa, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @dsa
        RETURN
      END

    -- Get the public key as XML
    DECLARE @bPublicOnly int
    SELECT @bPublicOnly = 1
    DECLARE @xmlStr nvarchar(4000)
    EXEC sp_OAMethod @dsa, 'ToXml', @xmlStr OUT, @bPublicOnly

    PRINT @xmlStr

    -- Sample output.

    -- <DSAKeyValue>
    -- 	<P>wBYOKu...2eoXw==</P>
    -- 	<Q>1taJI7...kV2/9c=</Q>
    -- 	<G>qjfbTi...eB1+g==</G>
    -- 	<Y>t3tz...NqjsPEg==</Y>
    -- </DSAKeyValue>

    -- Get the private key as XML.
    SELECT @bPublicOnly = 0
    EXEC sp_OAMethod @dsa, 'ToXml', @xmlStr OUT, @bPublicOnly


    PRINT @xmlStr

    -- Sample output.

    -- <DSAKeyValue>
    -- 	<P>wBYOKu...2eoXw==</P>
    -- 	<Q>1taJI7...kV2/9c=</Q>
    -- 	<G>qjfbTi...eB1+g==</G>
    -- 	<Y>t3tz...NqjsPEg==</Y>
    -- 	<X>lm9F...XzuVO+qU=</X>
    -- </DSAKeyValue>

    EXEC @hr = sp_OADestroy @dsa


END
GO