teavault - a header-only compile-time string encryption functionality using the tiny encryption algorithm (tea).

features

• compile-time encryption to resist reverse-engineering
• automatic or manual decryption at runtime
• order scrambling for additional obfuscation
• flexible key generation with optional custom seeds

how it works

the encryption uses the tea algorithm with a 128-bit key. by default, the key is generated using __TIME__ and __DATE__ preprocessor macros, ensuring a unique key for each compilation. you can also provide custom seed values to generate the key.

example usage

#include <iostream>
#include "tea_str.hpp"

int main() {
    // automatic decryption with default key generation
    auto decrypted_str = tea_str("automatically decrypted string!");

    // manual decryption object
    auto encrypted_obj = tea_str_m("manually decrypted string");

    // custom seed key generation
    auto custom_seed_str = tea_str("custom seed example", 1234, 5678, 91011, 1213);

    std::cout << "automatic decryption: " << decrypted_str << "\n";
    std::cout << "manual decryption: " << encrypted_obj.decrypt() << "\n";
    std::cout << "custom seed decryption: " << custom_seed_str << "\n";

    return 0;
}

macro references

• tea_str(str, ...): creates encrypted string with automatic decryption

  • str: string to encrypt
  • ...: optional custom seed values

• tea_str_m(str, ...): creates encrypted string object for manual decryption

  • str: string to encrypt
  • ...: optional custom seed values

key generation

the key_generator::generate() method creates a 128-bit key from:

• default: __TIME__ and __DATE__ preprocessor macros
• custom: user-provided seed values

license

this project is licensed under the MIT license. see the LICENSE file for details.