Delphi ActiveX

Add a PFX Source from BinData

Demonstrates the Chilkat Email.AddPfxSourceBd method, which adds PFX data held in a BinData object to the list of certificate and private-key sources used during decryption or signing. The second argument is the PFX password. Call it before obtaining the encrypted email so Chilkat can decrypt it automatically. This example loads a PFX into a BinData, adds it, and then loads an encrypted email.

Background: This is the in-memory (BinData) counterpart to AddPfxSourceFile. It is the right choice when the PFX bytes come from somewhere other than a file — a database, a secrets manager, or an HTTP download — letting you supply the certificate and private key without first writing them to disk (which is preferable for sensitive key material).

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var
success: Integer;
email: TChilkatEmail;
bdPfx: TChilkatBinData;

begin
success := 0;

//  Demonstrates the AddPfxSourceBd method, which adds PFX data (held in a BinData) to the
//  list of certificate and private-key sources used during decryption or signing.  The
//  second argument is the PFX password.  Call it before obtaining the encrypted email.

email := TChilkatEmail.Create(Self);

//  Load PFX data into a BinData object.
bdPfx := TChilkatBinData.Create(Self);
success := bdPfx.LoadFile('qa_data/certs/decryption.pfx');
if (success = 0) then
  begin
    Memo1.Lines.Add(bdPfx.LastErrorText);
    Exit;
  end;

//  Add the PFX as a source of the certificate + private key.
success := email.AddPfxSourceBd(bdPfx.ControlInterface,'pfx_password');
if (success = 0) then
  begin
    Memo1.Lines.Add(email.LastErrorText);
    Exit;
  end;

//  Load an encrypted email; Chilkat decrypts it using the PFX source.
success := email.LoadEml('qa_data/eml/encrypted.eml');
if (success = 0) then
  begin
    Memo1.Lines.Add(email.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Decrypted = ' + IntToStr(Ord(email.Decrypted)));

//  Note: Paths such as "qa_data/..." are relative local filesystem paths,
//  relative to the current working directory of the running application.