Ckode.Encryption

Ckode.Encryption is a small collection of simplified wrappers for common encryption algorithms.

Currently supports the following algorithms:

• AES
• AES with a string password used as encryption key
• RSA

All algorithms are from the .NET library.

The AES and RSA classes both offer a GenerateKey or GenerateKeyPair method which should be used to generate new keys (do not roll your own key generator, it'll probably have insecurities)

Installation:

I recommend using the NuGet package: https://www.nuget.org/packages/Ckode.Encryption/ however you can also simply clone the repository and use the pre-compiled binaries or compile the project yourself. As the project is licensed under MIT you're free to use it for pretty much anything you want.

Examples:

Encrypt a file with AES:

var aes = new Ckode.Encryption.AES();
var key = aes.GenerateKey(); // Make sure to store the key somewhere for decryption later on

var rawBytes = File.ReadAllBytes(filePath);
var encrypted = aes.Encrypt(rawBytes, key);
File.WriteAllBytes(encryptedFilePath, encrypted);

Encrypt a string with AES, using a password as key:

var aes = new Ckode.Encryption.AESWithPassword();
var key = "My secret";

var rawString = "Something nobody but me should read";
var encryptedString = aes.Encrypt(rawString, Encoding.UTF8, key);

// To decrypt:
var decryptedString = aes.Decrypt(encryptedString, Encoding.UTF8, key);

Encrypt a file with RSA:

var rsa = new Ckode.Encryption.RSA();
var keyPair = rsa.GenerateKeyPair(); // Make sure to store the key pair, and keep the private key private.

var rawBytes = File.ReadAllBytes(filePath);
var encrypted = rsa.Encrypt(rawBytes, keyPair);
File.WriteAllBytes(encryptedFilePath, encrypted);

// To decrypt
rsa.Decrypt(encrypted, keyPair);
// or
rsa.Decrypt(encrypted, keyPair.PrivateKey);