A lightweight, privacy-focused real-time chat application that implements end-to-end encryption using OpenPGP standards. Built with security and user privacy as core principles, this application ensures that your conversations remain completely private and secure.

end-node is a core component of the END NETWORK. It serves as the node software that enables seamless interaction with the END NETWORK, facilitating blockchain operations, managing transactions, and participating in network consensus.

This project implements the Rabin Cryptosystem in SageMath, a public-key encryption algorithm based on the integer factorization problem. The system uses blum primes for p and q to simplify the decryption process.

Deterministic security primitives for tick-bound time, consent, policy, ledger, and transport. Provides the shared invariants that underpin PQHD, PQAI, PQVL, and the broader PQ ecosystem.

A SageMath implementation of Edwards-Curve Digital Signature Algorithm (EdDSA), featuring secure key generation, signing, and verification. Focused on Cryptographic Primitives and highly efficient, scalable algorithms.

Secure Quantum Zero-Knowledge Proofs: Implementation, Analysis, and Optimization

Embark on a journey of cryptographic exploration as we delve into the intricate worlds of RSA and ElGamal encryption, crafted entirely from scratch without the aid of OpenSSL. Delve into the inner workings of these fundamental encryption algorithms, unraveling the complexities of secure data transmission.

This Ruby implementation of DES (Data Encryption Standard) allows users to encrypt and decrypt messages using a symmetric key. DES is a block cipher that works on 64-bit blocks of data and uses a 56-bit key.

A Python implementation of Salsa20/12, a stream cipher optimized for high-speed encryption & decryption. Uses bitwise XOR operations, quarter-round transformations, and key expansion algorithms for lightweight but secure cryptographic processing. Supports 128/256-bit key lengths for secure data transmission.