secured-enclave

Overview

secured-enclave is a Rust crate designed for secure and dev-ergonomic encryption and decryption of data. It provides a robust way to encrypt data using various cipher algorithms, key derivation strategies, and support for metadata.

Features

• Secure Encryption and Decryption: Uses ChaCha20Poly1305 for encryption and authentication, ensuring strong security.
• Metadata Support: Allows associating metadata with encrypted data.
• Flexible Key Management: Supports different key derivation strategies for enhanced security.
• Serialization and Deserialization: Easily serialize and deserialize encrypted data for storage or transmission.

Installation

Add the following line to your Cargo.toml file:

[dependencies]
secured-enclave = "0.5.0"

Usage

Basic Encryption and Decryption

Encrypting Data

use secured_enclave::{Enclave, Encryptable, KeyDerivationStrategy};

let password = "strong_password";
let encrypted_string = "Hello, world!".encrypt(password.to_string(), KeyDerivationStrategy::default());

Decrypting Data

use secured_enclave::{Decryptable, EnclaveError};

let password = "strong_password";
let decrypted_result = encrypted_data.decrypt(password.to_string());

println!("Decrypted data: {:?}", String::from_utf8(decrypted_data).unwrap())

Advanced Usage

Encrypting with Custom Strategies

It is possible to have more control as well when needed:

use secured_enclave::{Enclave, KeyDerivationStrategy};

fn main() {
   // Key generation (32bytes for the key, 16 bytes for salt)
   let key = Key::<32, 16>::new(b"my password", KeyDerivationStrategy::PBKDF2(900_000)); // 900K iterations

   // Leave some readable metadata (but signed!)
   let metadata = b"some metadata".to_vec();

   // Using Enclave for data encapsulation (&str metadata, 8-byte nonce)
   let enclave =
    Enclave::from_plain_bytes(metadata, key.pubk, b"Some bytes to encrypt".to_vec())
      .unwrap();

   // Get encrypted bytes (ciphertext)
   println!("Encrypted bytes: {:?}", enclave.encrypted_bytes);

   // Serialize everything to bytes
   let bytes: Vec<u8> = enclave.into();

   // Decrypt Enclave
   let decrypted_bytes = enclave.decrypt(key.pubk).unwrap();

   assert_eq!(decrypted_bytes, b"Some bytes to encrypt");
}

Decrypting with Metadata

use enclave::{Decryptable, EnclaveError};

let decryption_result = encrypted_data_with_metadata.decrypt_with_metadata::<Vec<u8>>(key);
match decryption_result {
    Ok((decrypted_data, metadata)) => {
        println!("Decrypted data: {:?}", String::from_utf8(decrypted_data).unwrap());
        println!("Metadata: {:?}", String::from_utf8(metadata).unwrap());
    },
    Err(e) => println!("Error during decryption: {:?}", e),
}

Testing

The crate includes a comprehensive set of unit tests. Run the tests with the following command:

cargo test

Contributing

Contributions are welcome! Please read our contributing guidelines before submitting pull requests.

License

This project is licensed under the MIT license.

This README provides a basic guide to getting started with the Enclave crate. For more detailed documentation, please refer to the API documentation.