SQL Server

Validate a Smartcard PIN

See more Certificates Examples

Validates a smartcard PIN. This example only runs on Windows and requires Chilkat v9.5.0.77 or greater. 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

    -- Note: Requires Chilkat v9.5.0.77 or greater.

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

    EXEC sp_OASetProperty @cert, 'SmartCardPin', '000000'

    -- Load the certificate on the smartcard currently in the reader (or on the USB token).
    -- Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
    -- See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
    EXEC sp_OAMethod @cert, 'LoadFromSmartcard', @success OUT, ''
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- Check to see if the SmartCardPin property contains the valid PIN for the smartcard.
    DECLARE @pinValid int
    EXEC sp_OAMethod @cert, 'CheckSmartCardPin', @pinValid OUT
    IF @pinValid < 0
      BEGIN

        PRINT 'Unable to check the PIN validity.'
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    IF @pinValid = 1
      BEGIN

        PRINT 'PIN is valid.'
      END
    ELSE
      BEGIN

        PRINT 'PIN is invalid.'
      END

    EXEC @hr = sp_OADestroy @cert


END
GO