SQL Server

ScMinidriver - Acquire Context with Smart Card or USB Token

See more ScMinidriver Examples

Initializes communication with the card inserted in the given reader (or a USB token). Reader names can be discovered via the SCard.ListReaders or SCard.FindSmartcards methods. If successful, the Atr and CardName properties will be set. 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
    DECLARE @iTmp0 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 @scmd int
    EXEC @hr = sp_OACreate 'Chilkat.ScMinidriver', @scmd OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Reader names (smart card readers or USB tokens) can be discovered
    -- via List Readers or Find Smart Cards
    DECLARE @readerName nvarchar(4000)
    SELECT @readerName = 'Alcor Micro USB Smart Card Reader 0'
    EXEC sp_OAMethod @scmd, 'AcquireContext', @success OUT, @readerName
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @scmd, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @scmd
        RETURN
      END

    -- If we are successful, the name of the currently inserted smart card is available:
    DECLARE @cardName nvarchar(4000)
    EXEC sp_OAGetProperty @scmd, 'CardName', @cardName OUT

    PRINT 'Card name: ' + @cardName

    -- Also, the ATR of the inserted card is available (you will likely not need the ATR).

    EXEC sp_OAGetProperty @scmd, 'Atr', @sTmp0 OUT
    PRINT 'ATR: ' + @sTmp0

    -- Also, the maximum number of key containers is readily available:

    EXEC sp_OAGetProperty @scmd, 'MaxContainers', @iTmp0 OUT
    PRINT 'Max number of key containers = ' + @iTmp0

    -- Delete the context when finished with the card.
    EXEC sp_OAMethod @scmd, 'DeleteContext', @success OUT
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @scmd, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
      END

    -- Sample output:

    -- Card name: IDPrime MD T=0
    -- ATR: 3B7F96000080318065B0855956FB120FFE829000
    -- Max number of key containers = 20

    EXEC @hr = sp_OADestroy @scmd


END
GO