r/crypto

softKMS - inspired by softHSMv2 - modern take

Implementing ML-KEM (Kyber) and X3DH for a P2P WebApp in JavaScript

I’ve been working on a P2P messaging implementation focused on mitigating "Harvest Now, Decrypt Later" risks by integrating Post-Quantum Cryptography (PQC) directly into the browser. Since NIST recently finalized FIPS 203 (ML-KEM), I decided to implement ML-KEM encryption into my …

Hash Based Verifiable Delay Function with simple approach

Hello, I want to make project that need vdf algorithm. But, majority of vdf implementation is based on RSA/factoring, which is not secure against quantum computer. And then I try to find paper that implement post quantum vdf. I found …

Project RedRabbit — A open source single HTML file app that fights surveillance.Ran by the community. Invisible by design. Unstoppable by nature.

Discord has been handing over user data to law enforcement at a rate that's been climbing every year. Their transparency reports don't lie — thousands of requests, most of them complied with. Telegram's "encrypted" private chats aren't the default, group …

Cryptography Engineering Has An Intrinsic Duty of Care

AirSnitch: Demystifying and Breaking Client Isolation in Wi-Fi Networks

Signal Protocol for Browsers

Id like to share my implementation of the signal protocol that i use in my messaging app. The implementation is in rust and compiles to WASM for browser-based usage. https://github.com/positive-intentions/signal-protocol Its far from finished and im not sure when its …

Trying to best understand the tech behind ZK and E2EE, I build some code and need review / feedback

I just recently take the leap and try to create a small project with zero-knowledge and end-to-end encryption and would like some feedback about my architecture and implementation. [https://github.com/tacosjs/tanstack-starter-e2e-encryption?tab=readme-ov-file#zero-knowledge-architecture](https://github.com/tacosjs/tanstack-starter-e2e-encryption?tab=readme-ov-file#zero-knowledge-architecture) I am open to any feedback. Please feel free to leave …

Exploring and improving a Hybrid ARX Design in ChaCha12 with a Lightweight Nonlinear Layer

I’m a Cybersecurity student and I am interested in Cryptography and currently working on IoT Security benchmarking performance. I have been studying about Block/Stream Cipher and i compare with AES and ChaCha. i had found that AES is more complex …

Template and CPA Side Channel Attacks on the Kyber/ML-KEM Pair-Pointwise Multiplication

I've no idea how relevant the *"40 traces to recover the [attacked part of] secret key"* is, but what interested me was that publication of power traces dataset enabled this paper. *"One of the drawbacks of the ongoing side channel …