AES Compress and Encrypt

Download: Chilkat .NET Assemblies

Load a file into memory, compress it, AES encrypt, write it out, and then do the reverse.

		Chilkat.Crypt2 crypt = new Chilkat.Crypt2();
		crypt.UnlockComponent("30-day-trial");
		crypt.CryptAlgorithm = "aes";
		crypt.KeyLength = 128;
		crypt.SecretKey = crypt.GenerateSecretKey("sharedKey");
	    
		byte [] inData = crypt.ReadFile("timesheets.pdf");
		byte [] cData = crypt.CompressBytes(inData);
		byte [] eData = crypt.EncryptBytes(cData);
		crypt.WriteFile("encrypted.dat",eData);
		
		// Reverse...
		byte [] inData2 = crypt.ReadFile("encrypted.dat");
		byte [] dData = crypt.DecryptBytes(inData2);
		byte [] decompressedData = crypt.InflateBytes(dData);
		crypt.WriteFile("timesheets2.pdf",decompressedData);

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/vbdotnet/step2.asp