Virgil Crypto library is a small, flexible and convenient wrapper for a variety of cryptographic algorithms. Includes asymmetric key generation, encryption/decryption of data, generation/verification of digital signatures, Pythia protocol and Double Ratchet protocol implementation.

Virgil Security Ratchet SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.

Virgil Security Ratchet Objective-C/Swift SDK provides an implementation of the Double Ratchet algorithm, which is used by parties to exchange encrypted messages based on a shared secret key.

Pure Kotlin implementation of TweetNaCl and Double Ratchet with hybrid Post-Quantum (PQC) support. Zero native dependencies, 100% KMP. Secure your Android, iOS, JVM, Web, and Native apps with one library.

Implementation of the Double Ratchet Algorithm, enabling two parties to exchange encrypted messages based on a shared secret key.

A Double Ratchet Encrypted Chat Application. Written for Cryptography Term Project at PSU, Winter 2023.