C# AES String-to-String Encryption

Download: Chilkat .NET Assemblies

Demonstrates encrypting a string in C# using AES encryption and encoding the resultant binary encrypted data in a base64 string.

// String-to-string AES encryption
Chilkat.Crypt2 crypt = new Chilkat.Crypt2();
crypt.UnlockComponent("30-day-trial");

crypt.CryptAlgorithm = "aes";

crypt.CipherMode = "cbc";
crypt.KeyLength = 128;

crypt.SecretKey = crypt.GenerateSecretKey("secret");
crypt.EncodingMode = "base64";
	    	    	    
string encryptedStr = crypt.EncryptStringENC("Hello World!");

// Output is "64vx8N4ntgtmpG3p5K5X4w=="
MessageBox.Show(encryptedStr);

string decryptedStr = crypt.DecryptStringENC(encryptedStr);

MessageBox.Show(decryptedStr);

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/csharp/step2.asp