pgp encryption with additional password in C# and VB.NET

DidiSoft OpenPGP Library for .NET can encrypt a file with both the public key of the recipient and additional password. In this case if for some reason the corresponding private key of the recipient has been lost the encrypted file can still be decrypted with the additional password.

The encryption with a password is also known as ‘password based encryption‘ or PBE for short.

The example below demonstrates this in practice:


using System.IO;
using DidiSoft.Pgp;
class EncryptFileWithPassword
  public void Demo()
	String additionalDecryptionPassword = "extra password";
	PGPLib pgp = new PGPLib();
	bool asciiArmor = false;
	bool withIntegrityCheck = false;


Imports System
Imports DidiSoft.Pgp
Class EncryptFileWithPassword
  Public Sub Demo()
	Dim additionalDecryptionPassword As String = "extra password"
	Dim pgp As New PGPLib()
	Dim asciiArmor As Boolean = False
	Dim withIntegrityCheck As Boolean = False
	pgp.EncryptFilePBE("DataFiles\INPUT.txt", _
			   "DataFiles\public.key", _
			   additionalDecryptionPassword, _
			   "DataFiles\OUTPUT.pgp", _
			   asciiArmor, _
  End Sub
End Class

An example that shows how to decrypt an OpenPGP password encrypted file can be found at: