Unity Crypto Library

Unity Crypto Library is a set of free and open source cross-platform tools for using cryptographic and hash functions in your games. It also contains helper classes for handling files and web requests for your convenience.

I periodically update possible algorithms based on the latest research in crypto-graphy.

Note! This library supports only Unity 2021+ versions

Get Started

Unity Crypto Library is designed for your application and games security and using only default API's like System and UnityEngine.

Installation process:

• Download and import latest release from this page;
• See usage examples below;

Or Using Unity Package Manager:
https://github.com/DevsDaddy/UnityCrypto.git?path=/DevsDaddy/Shared/CryptoLibrary/

Usage

You can use a simple controller for fast encryption/decryption:

// Setup Default Crypto-Provider
CryptoController.SetDefaultProvider(new AESProvider(new AESEncryptionOptions {
    cryptoKey = "myCryptoKey"
}));

// Simple Plain-Text Encryption-Decryption 
string encryptedText = CryptoController.Encrypt("MyTextToEncrypt");
string decryptedText = CryptoController.Decrypt(encryptedText);

// Or with in-line crypto-provider
string encryptedText2 = CryptoController.Encrypt("TextToEncrypt", new AESProvider(new AESEncryptionOptions {
    cryptoKey = "myCryptoKey"
}));

Or initial crypto providers manually:*

// Create your provider
AESProvider provider = new AESProvider(new AESEncryptionOptions {
    cryptoKey = "myCryptoKey"
});

// Work with provider
string encryptedText = provider.EncryptString("MyTextToEncrypt");
string decryptedText = provider.DecryptString(encryptedText);

Also you can read/write files using util class (similar like CryptoController just for files):*

// Setup Default Crypto-provider for Files
CryptoFile.SetDefaultProvider(new AESProvider(new AESEncryptionOptions {
    cryptoKey = "key"
}));

// Read and Decrypt File
string decryptedText = CryptoFile.ReadText("path_to_encrypted_file");

// Encrypt plain-text and save to file
bool writtenFile = CryptoFile.WriteText("path_to_encrypted_file", decryptedText);

Crypto-Algorithms

Library contains popular crypto modules:

• AES (Recommended);
• Triple DES (Recommended);
• BlowFish (Recommended);
• Twofish (Recommended);
• RSA (Recommended for Web);
• DES;
• Base64;
• XOR (Only strings support, no byte array);

Code Sample:

string encrypted = CryptoController.Encrypt("TextToEncrypt", new AESProvider(new AESEncryptionOptions {
    cryptoKey = "myCryptoKey"
}));

// Return Encrypted
Debug.Log(encrypted);

Hashing

Library contains popular hashing functions:

• SHA1 / SHA256 / SHA512 (Recommended);
• PBKDF2 (Recommended);
• MD5;
• xxHash;
• RIPEMD-160;
• CRC32;

Code Sample:

string hashed = CryptoController.Encrypt("TextToEncrypt", new MD5Provider(new MD5EncryptionOptions { }));

// Return Hashed
Debug.Log(hashed);

Examples

See framework usage examples in other projects:

• Game Shield - Unity Game Security and Anti-Cheat Toolkit;

Coming Soon (TO-DO)

I plan to add the following functionality in the near future:

• Sending and accepting encrypted HTTP requests and working with encrypted data on sockets with server examples on NodeJS / CSharp;
• Read / Write files using chunks for large amounts of data;
• New Hashing Modules: Argon2, BCrypt, SCrypt, Whirlpool;
• New Encryption Modules like SPHINCS+;

Join Community

• Discord Community

Support Me

You can support the development and updating of libraries and assemblies by dropping a coin:

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Boosty	https://boosty.to/devsdaddy