Top 14 Secp256k1 Open-Source Projects

• bitcoin-php

  1 1,021 0.0 PHP

  Bitcoin implementation in PHP

  

• brainflayer

  10 864 1.7 C

  A proof-of-concept cracker for cryptocurrency brainwallets and other low entropy key algorithms.

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• noble-secp256k1

  3 695 7.5 JavaScript

  Fastest 4KB JS implementation of secp256k1 signatures and ECDH

Project mention: A beginner's guide to constant-time cryptography (2017) | news.ycombinator.com | 2024-02-22

I noticed in July of 2022 that Go did exactly the vulnerable example and reported it to the security team.

https://github.com/golang/go/issues/53849

It was fixed as of Go 1.21 https://go.dev/doc/go1.21

---

The article cites JavaScript, which is not constant time. There's no sure way to do constant time operations in JavaScript and thus no secure way to do crypto directly in Javascript. Browsers like Firefox depend on low level calls which should be implemented in languages that are constant time capable.

JavaScript needs something like constant time WASM in order to do crypto securely, but seeing the only constant time WASM project on GitHub has only 16 stars and the last commit was 2 years ago, it doesn't appear to have much interest. https://github.com/WebAssembly/constant-time

However, for JavaScript, I recommend Paul's library Noble which is "hardened to be algorithmically constant time". It is by far the best library available for JavaScript. https://github.com/paulmillr/noble-secp256k1

• noble-curves

  2 588 8.8 TypeScript

  Audited & minimal JS implementation of elliptic curve cryptography.

Project mention: The AT protocol is the most obtuse crock of s* | news.ycombinator.com | 2023-05-09

BlueSky uses @noble/secp256k1 which performs this stuff in Javascript, with about 880* verifications per second on the Apple M2 (a chip with a relatively high IPC, likely higher than your average server).

Verifying those messages will take about a minute of CPU time per user (assuming no impact from cache misses due to threads swapping in and out and processing new data). I think that's quite significant.

* = https://github.com/paulmillr/noble-curves

• secp256k1-zkp

  3 351 8.9 C

  A fork of libsecp256k1 with support for advanced and experimental features such as Confidential Assets and MuSig2

  

• libauth

  9 270 6.9 TypeScript

  An ultra-lightweight, zero-dependency TypeScript library for Bitcoin Cash, Bitcoin, and Bitauth applications.

  

Project mention: List of Resources for Developing with CashTokens on Bitcoin Cash | /r/cashtokens | 2023-05-20

• Kangaroo

  2 205 3.7 C++

  Pollard's kangaroo for SECPK1

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• eth.rb

  2 187 5.1 Ruby

  a straightforward library to build, sign, and broadcast ethereum transactions anywhere you can run ruby.

• coincurve

  1 146 8.7 Python

  Cross-platform Python bindings for libsecp256k1

• py

  1 132 5.6 Python

  Elliptic Curve Integrated Encryption Scheme for secp256k1 in Python (by ecies)

  

• Grand-Ultimate-BTC-Hacker

  1 53 0.0

  The most advanced bitcoin hacking system on the planet. It works, and it will find 'lost' bitcoins all day long.

• secp256k1.cr

  1 48 0.0 Crystal

  a native library implementing secp256k1 purely for the crystal language.

• secp256k1-voi

  1 27 8.3 Go

  High assurance Go secp256k1 (Mirror)

Project mention: A Dive into the Math Behind Bitcoin Schnorr Signatures | news.ycombinator.com | 2023-07-03

I was searching for implementations to get a more concrete idea of the algorithm and came across https://github.com/Yawning/secp256k1-voi which appears to be well commented, robust, and often also entertaining. There’s also a musig2 one by the same author.

• secp256k1-legacy

  0 0 0.0 C

  Haskell bindings for secp256k1 library (by symbiont-sam-halliday)

• SaaSHub

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Secp256k1 related posts

• Noble Cryptography

  1 project | news.ycombinator.com | 8 Dec 2023

• A Dive into the Math Behind Bitcoin Schnorr Signatures

  2 projects | news.ycombinator.com | 3 Jul 2023

• Use GPU or cloud to brute force seed phrase

  2 projects | /r/cryptodevs | 6 Jul 2022

• I did a complete rewrite of the secp256k1.cr library.

  1 project | /r/crystal_programming | 8 Apr 2022

• Grand-Ultimate-BTC-Hacker

  1 project | news.ycombinator.com | 30 May 2021

• Nvidia GeForce 470.05 driver confirmed to remove GeForce RTX 3060 ETH mining limiter

  1 project | /r/nvidia | 15 Mar 2021
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