SQL Server

ZATCA Load Certificate and Private Key from PEM Files

See more ZATCA Examples

Demonstrates how to load a certificate and private key from a pair of PEM files. 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

    -- The LoadFromFile method will automatically detect the file format..
    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, 'qa_data/zatca/cert.pem'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    EXEC sp_OAGetProperty @cert, 'SubjectCN', @sTmp0 OUT
    PRINT @sTmp0

    -- Load the private key.
    DECLARE @privKey int
    EXEC @hr = sp_OACreate 'Chilkat.PrivateKey', @privKey OUT

    EXEC sp_OAMethod @privKey, 'LoadPemFile', @success OUT, 'qa_data/zatca/ec-secp256k1-priv-key.pem'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @privKey, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @privKey
        RETURN
      END


    EXEC sp_OAGetProperty @privKey, 'KeyType', @sTmp0 OUT
    PRINT 'Key Type: ' + @sTmp0

    -- Associate the private key with the certificate.
    EXEC sp_OAMethod @cert, 'SetPrivateKey', @success OUT, @privKey
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @privKey
        RETURN
      END


    PRINT 'Success.'

    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @privKey


END
GO