MSFC 2.0.0

MSFCipher

MSFCipher is a C# library that provides implementations of various classical and modern encryption algorithms using a simple, pluggable interface. Designed for learning, experimenting, and integrating symmetric encryption methods into your own .NET projects.

✨ Features

• ✅ Easy-to-use ICipher interface
• 🔐 Ciphers:
  • Caesar Cipher
  • Monoalphabetic Cipher
  • Vernam Cipher
  • One-Time Pad
  • Rail Fence Cipher
  • Row-Column Transposition Cipher

🧠 Interface

All cipher classes implement a common interface, making it easy to switch between different encryption methods:

public interface ICipher
{
    string Encrypt(string text);
    string Decrypt(string cipherText);
}

🚀 Usage Examples

• ✅ Caesar Cipher

MSFCipher MSF = new MSFCipher();

ICipher cipher = MSF.GetCaesarCipher(3);
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

• ✅ Vernam Cipher

MSFCipher MSF = new MSFCipher();

ICipher cipher = MSF.GetVernamCipher("TestTestTestT");
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

• ✅ One-Time Pad Cipher

MSFCipher MSF = new MSFCipher();

var cipher = MSF.GetOneTimePadCipher();
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");
Console.WriteLine($"Key Used: {cipher.GetKey()}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

• ✅ Monoalphabetic Cipher

MSFCipher MSF = new MSFCipher();

ICipher cipher = MSF.GetMonoalphabeticCipher("QWERTYUIOPASDFGHJKLZXCVBNM");
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

• ✅ Row-Column Transposition Cipher

MSFCipher MSF = new MSFCipher();

ICipher cipher = MSF.GetRowColumnTranspositionCipher(5);
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

• ✅ Rail Fence Cipher

MSFCipher MSF = new MSFCipher();

ICipher cipher = MSF.GetRailFenceCipher(3);
string message = "Hello, World!";
string encryptedMessage = cipher.Encrypt(message);
Console.WriteLine($"Encrypted Message: {encryptedMessage}");

string decryptedMessage = cipher.Decrypt(encryptedMessage);
Console.WriteLine($"Decrypted Message: {decryptedMessage}");

📁 Project Structure

MSFC/
│
├── Contracts/
│   ├── ICipher.cs    # Cipher interface
│   └── IMSFCipher.cs         
│
├── Entities/
│   ├── CaesarCipher.cs
│   ├── MonoalphabeticCipher.cs
│   ├── VernamCipher.cs
│   ├── OneTimePadCipher.cs
│   ├── RailFenceCipher.cs
│   └── RowColumnTranspositionCipher.cs
│

🤝 Contributing

• Pull requests are welcome! Feel free to fork this project, improve it, and submit a PR.

📜 License

• This project is open-source and available under the MIT License.

🧪 Demo

• You can quickly test each cipher by running Test/ConsoleApp1