(SQL Server) Example: Crypt2.SetDecryptCert2 method

Demonstrates how to call the SetDecryptCert2 method. This example loads the certificate and private key from PEM files:

PEM Format

Certificate file (cert.pem or cert.crt):

-----BEGIN CERTIFICATE-----
MIID... (base64-encoded data)
-----END CERTIFICATE-----

Private key file (key.pem or key.key):

-----BEGIN PRIVATE KEY-----
MIIE... (base64-encoded data)
-----END PRIVATE KEY-----

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

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

    DECLARE @success int
    EXEC sp_OAMethod @cert, 'LoadFromFile', @success OUT, 'c:/certs_and_keys/certAbc.pem'
    -- Assume success...

    DECLARE @privKey int
    EXEC @hr = sp_OACreate 'Chilkat.PrivateKey', @privKey OUT

    EXEC sp_OAMethod @privKey, 'LoadAnyFormatFile', @success OUT, 'c:/certs_and_keys/certAbc_key.pem'
    -- Assume success...

    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT

    EXEC sp_OASetProperty @crypt, 'CryptAlgorithm', 'pki'

    -- ...
    -- ...

    EXEC sp_OAMethod @crypt, 'SetDecryptCert2', @success OUT, @cert, @privKey
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @privKey
        EXEC @hr = sp_OADestroy @crypt
        RETURN
      END


    PRINT 'Success.'

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


END
GO