SQL Server

Provide a Certificate Vault to an Email

Demonstrates the Chilkat Email.UseCertVault method, which adds an XML certificate vault to the email's internal certificate and private-key lookup sources for encryption, decryption, signing, and verification. This example builds a vault from a PFX and attaches it to the email.

Background: A certificate vault is a portable, in-memory store of certificates and private keys. Instead of wiring up each certificate individually for every operation, you load your credentials into one XmlCertVault and hand it to the email; Chilkat then draws on it automatically whenever it needs a key — to decrypt an incoming message, sign an outgoing one, or verify a signature. This is especially convenient on platforms without an OS certificate store.

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--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  Demonstrates the UseCertVault method, which adds an XML certificate vault to the email's
    --  internal certificate and private-key lookup sources for encryption, decryption, signing,
    --  and verification.

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

    --  Build a certificate vault from a PFX (certificate + private key).
    DECLARE @vault int
    EXEC @hr = sp_OACreate 'Chilkat.XmlCertVault', @vault OUT

    EXEC sp_OAMethod @vault, 'AddPfxFile', @success OUT, 'qa_data/certs/certs.pfx', 'pfx_password'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @vault, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @email
        EXEC @hr = sp_OADestroy @vault
        RETURN
      END

    --  Make the vault available to the email object for crypto operations.
    EXEC sp_OAMethod @email, 'UseCertVault', @success OUT, @vault
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @email
        EXEC @hr = sp_OADestroy @vault
        RETURN
      END


    PRINT 'Certificate vault attached to the email.'

    --  Note: The path "qa_data/certs/certs.pfx" is a relative local filesystem path,
    --  relative to the current working directory of the running application.

    EXEC @hr = sp_OADestroy @email
    EXEC @hr = sp_OADestroy @vault


END
GO