12 releases (4 stable)
|1.2.0||Aug 23, 2022|
|1.1.1||Jun 21, 2022|
|0.0.7||Jun 9, 2022|
#736 in Cryptography
93 downloads per month
Used in 2 crates
What is it?
Dexios-Core is a library used for managing cryptographic functions and headers that adhere to the Dexios format.
Dexios-Core uses modern, secure and audited1 AEADs for encryption and decryption.
You may find the audits for both AES-256-GCM and XChaCha20-Poly1305 on the NCC Group's website.
1 Deoxys-II-256 does not have an official audit, so use it at your own risk
Who uses Dexios-Core?
This library is implemented by Dexios, a secure command-line file encryption utility.
Dexios-Core makes it easy to integrate the Dexios format into your own projects (and if there's a feature that you'd like to see, please don't hesitate to open a Github issue). The documentation is packed with information to help you get started!
- Convenience functions for encrypting/decrypting
- 3 AEADs (XChaCha20-Poly1305, AES-256-GCM, Deoxys-II-256)
- Easy management of encrypted headers (no more worrying about where to store a nonce!)
argon2idhashing with secure parameters
balloonhashing with secure parameters and BLAKE3
- Frequent updates and feature additions!
If you like my work, and want to help support Dexios, or Dexios-Core, feel free to donate! This is not necessary by any means, so please don't feel obliged to do so.
XMR: 84zSGS18aHtT3CZjZUnnWpCsz1wmA5f65G6BXisbrvAiH7PxZpP8GorbdjAQYRtfeiANZywwUPjZcHu8eXJeWdafJQFK46G BTC: bc1q8x0r7khrfj40qd0zr5xv3t9nl92rz2387pu48u ETH: 0x9630f95F11dFa8703b71DbF746E5c83A31A3F2DD
Deserializing a header:
let header_bytes: [u8; 64] = [ 222, 2, 14, 1, 12, 1, 142, 88, 243, 144, 119, 187, 189, 190, 121, 90, 211, 56, 185, 14, 76, 45, 16, 5, 237, 72, 7, 203, 13, 145, 13, 155, 210, 29, 128, 142, 241, 233, 42, 168, 243, 129, 0, 0, 0, 0, 0, 0, 214, 45, 3, 4, 11, 212, 129, 123, 192, 157, 185, 109, 151, 225, 233, 161, ]; let mut cursor = Cursor::new(header_bytes); // the cursor may be a file, this is just an example let (header, aad) = Header::deserialize(&mut cursor).unwrap();
Writing a header to a file:
let mut output_file = File::create("test").unwrap(); header.write(&mut output_file).unwrap();
Encrypting and decrypting in-memory:
// obviously the key should contain data, not be an empty vec let raw_key = Protected::new(vec![0u8; 128]); let salt = gen_salt(); let key = balloon_hash(raw_key, &salt, &HeaderVersion::V4).unwrap(); let cipher = Ciphers::initialize(key, &Algorithm::XChaCha20Poly1305).unwrap(); let secret = "super secret information"; let nonce = gen_nonce(&Algorithm::XChaCha20Poly1305, &Mode::MemoryMode); let encrypted_data = cipher.encrypt(&nonce, secret.as_bytes()).unwrap(); let decrypted_data = cipher.decrypt(&nonce, encrypted_data.as_slice()).unwrap(); assert_eq!(secret, decrypted_data);
You can read more about Dexios, Dexios-Core and the technical details in the project's main documentation!
Dexios-Core exclusively uses AEADs provided by the RustCrypto Team, so I'd like to give them a huge thank you for their hard work (this wouldn't have been possible without them!)