SQL Server

Load Certificate from .cer and Private Key from .pem

See more Certificates Examples

Load a certificate from a .cer and its associated private key from a .pem. 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

    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_OAMethod @cert, 'LoadFromFile', @success OUT, 'C:/certs_and_keys/Certificate.cer'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    DECLARE @sbPem int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbPem OUT

    EXEC sp_OAMethod @sbPem, 'LoadFile', @success OUT, 'C:/certs_and_keys/PrivateKey.pem', 'utf-8'
    IF @success = 0
      BEGIN

        PRINT 'Failed to load private key PEM'
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @sbPem
        RETURN
      END

    EXEC sp_OAMethod @sbPem, 'GetAsString', @sTmp0 OUT
    EXEC sp_OAMethod @cert, 'SetPrivateKeyPem', @success OUT, @sTmp0
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @sbPem
        RETURN
      END


    PRINT 'The certificate and associated private key are now loaded and ready for signing.'

    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @sbPem


END
GO