Sigma Prime

Blockchain, Cybersecurity and Complex Systems

New Blockprint Graphs and Visuals

Michael Sproul | Tue 10 October 2023 Estimated read time: 2 min

Announcing a graphical interface for Blockprint

Using Proxies: An Essential Guide

Richard Skinner | Tue 26 September 2023 Estimated read time: 7 min

A practical guide to safe choices and best practices when deploying proxies for a project

Rogue Key Attack on Gennaro et al. DKG for Polynomials of Excessive Degree

Kirk Baird | Thu 26 November 2020 Estimated read time: 13 min

A rogue key attack on Gennaro et al. DKG for polynomials of excessive degree, allowing full control of the private key

Beacon Fuzz - Update #09

Mehdi Zerouali | Wed 11 November 2020 Estimated read time: 6 min

Beacon Fuzz - Update #09

Beacon Fuzz - Update #08

Mehdi Zerouali | Thu 01 October 2020 Estimated read time: 9 min

Beacon Fuzz - Update #08

Beacon Fuzz - Update #07

Mehdi Zerouali | Wed 19 August 2020 Estimated read time: 5 min

Beacon Fuzz - Update #07

Beacon Fuzz - Update #06

Mehdi Zerouali | Sun 12 July 2020 Estimated read time: 4 min

Beacon Fuzz - Update #06

Seeking Blockchain Security Engineers

Mehdi Zerouali | Wed 08 July 2020 Estimated read time: 3 min

We're hiring blockchain security engineers

Seeking an Executive Assistant (Part-Time or Full-Time)

Mehdi Zerouali | Wed 08 July 2020 Estimated read time: 2 min

We're hiring an executive assistant

Beacon Fuzz - Update #05

Mehdi Zerouali | Wed 17 June 2020 Estimated read time: 4 min

Beacon Fuzz - Update #05

Beacon Fuzz - Update #04

Mehdi Zerouali and Nathaniel Jensen | Wed 06 May 2020 Estimated read time: 8 min

Beacon Fuzz - Update #04

Beacon Fuzz - Update #03

Mehdi Zerouali | Tue 07 April 2020 Estimated read time: 5 min

Beacon Fuzz - Update #03

Beacon Fuzz - Update #02

Nathaniel Jensen | Mon 24 February 2020 Estimated read time: 8 min

Beacon Fuzz - Update #02

Beacon Fuzz - Update #01

Nathaniel Jensen | Tue 31 December 2019 Estimated read time: 10 min

Beacon Fuzz - Update #01

Announcing Beacon Fuzz, an Eth2 Differential Fuzzer

Mehdi Zerouali | Thu 21 November 2019 Estimated read time: 4 min

Beacon Fuzz Update #00

Dapper Ethereum Smart Contract Wallet: Security Review

Mehdi Zerouali | Thu 09 May 2019 Estimated read time: 11 min

This post shares publicly the details of a security assessment conducted by Sigma Prime, which targeted an Ethereum smart contract wallet developed by Dapper Labs.

Status ENS Integration: Smart Contract Security Review

Dr Adrian Manning and Mehdi Zerouali | Wed 24 October 2018 Estimated read time: 11 min

This post shares with the public details of a security review performed by Sigma Prime, which targeted an Ethereum Name Service (ENS) registrar developed by Status.

A Detailed Introduction to RSA Cryptography

Kristian Mcdonald | Mon 27 August 2018 Estimated read time: 41 min

A comprehensive discussion and derivation of RSA cryptography, including the generalisation to multiple primes.

Purity in the EVM

Paul Hauner | Fri 08 June 2018 Estimated read time: 13 min

A definition of purity in the Ethereum EVM with strategies for detecting purity on-chain.

Solidity Security: Comprehensive list of known attack vectors and common anti-patterns

Dr Adrian Manning | Wed 30 May 2018 Estimated read time: 75 min

This post aims to be a relatively in-depth and up-to-date introductory post detailing the past mistakes that have been made by Solidity developers in an effort to prevent future devs from repeating history.

Proof-of-work in cryptocurrencies: an accessible introduction

Paul Hauner | Wed 06 December 2017 Estimated read time: 11 min

This article provides an accessible explanation of the "proof-of-work" consensus algorithm as used in Bitcoin, Ethereum and many other cryptocurrencies.

Understanding Equihash: Mathematical Optimizations and Zcash

Dr Adrian Manning and Dr Kristian Mcdonald | Sun 22 October 2017 Estimated read time: 26 min

Overview of the Equihash mining algorithm and potential mathematical optimisation thought experiments.