Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Delphi ActiveX Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Delphi ActiveX) Load Signed and/or Encrypted Email and Unwrap Security Layers

The LoadEml method loads an email (.eml file containing the MIME of an email) and automatically unwraps the digital signature and encryption security layers. A program can then examine the properties of the email object to see what was unwrapped.

Chilkat for Delphi Downloads

Chilkat ActiveX DLL for Delphi

Chilkat non-ActiveX DLL for Delphi

* The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
email: TChilkatEmail;
success: Integer;

begin
email := TChilkatEmail.Create(Self);

//  Provide PFX/.p12 files for any certs+keys needed for decryption.
//  Signature verification does not need anything extra.
//  (Also, Chilkat will automatically find and use pre-installed certs + private keys needed for decryption
//  on a Windows system.)
success := email.AddPfxSourceFile('/pfxFiles/certs_and_keys_1.pfx','pfxPassword1');
if (success <> 1) then
  begin
    Memo1.Lines.Add(email.LastErrorText);
    Exit;
  end;
success := email.AddPfxSourceFile('/pfxFiles/certs_and_keys_2.pfx','pfxPassword2');
if (success <> 1) then
  begin
    Memo1.Lines.Add(email.LastErrorText);
    Exit;
  end;
//  ...

//  Load a potentially signed and/or encrypted email.
success := email.LoadEml('someDir/someEmail.eml');

//  If the email was signed and/or encrypted, it was "unwrapped", i.e.
//  the email is already decrypted and in a state as if it were never signed or encrypted.

//  You may check to see if the email was received encrypted or signed, and if so,
//  whether it was successfully unwrapped and who signed or encrypted it:
if (email.ReceivedEncrypted = 1) then
  begin

    Memo1.Lines.Add('This email was encrypted.');
    if (email.Decrypted = 1) then
      begin
        Memo1.Lines.Add('This email was successfully decrypted.  It was encrypted by:');
        Memo1.Lines.Add(email.EncryptedBy);
      end
    else
      begin
        Memo1.Lines.Add('This email was not decrypted.');
      end;
  end;
if (email.ReceivedSigned = 1) then
  begin

    Memo1.Lines.Add('This email was signed.');
    if (email.SignaturesValid = 1) then
      begin
        Memo1.Lines.Add('The signature was verified.  It was signed by:');
        Memo1.Lines.Add(email.SignedBy);
      end
    else
      begin
        Memo1.Lines.Add('The signature verification failed.');
      end;
  end;

//  At this point, the contents of the email, including attachments, can be accessed normally..
end;

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.