Security Announcement

A bug related to transaction priority handling may allow an attacker to crash Zcash nodes (Denial of Service) via a specially crafted transaction. A fix is implemented in zcashd release 1.0.8-1.
Please see the official announcement for more details and update your Zcash node to 1.0.8-1.

Language

Scientists

Eli Ben-Sasson

Technion

Eli is a Professor at the Computer Science Department at Technion - Israel Institute of Technology. His research includes the theory (math), implementation, and applications of proof systems, including Zero Knowledge (ZK) and Probabilistically Checkable Proofs. As part of this effort he co-founded the Succinct Computational Integrity and Privacy Research (SCIPR) Lab, members of which built the ZK system used by the academic version of Zerocash.

Alessandro Chiesa

UC Berkeley

Alessandro is a faculty member in Computer Science at UC Berkeley. He received his bachelor and doctoral degrees from MIT, and works in theoretical computer science and computer security. His research includes theoretical foundations, practical implementations, and applications of succinct zero knowledge proofs. He has co-founded SCIPR Lab (a cross-institution lab focusing on cryptographic proofs) and is a lead author of libsnark, a C++ library for zkSNARK proofs.

Christina Garman

Johns Hopkins University

Christina is a Cryptography and Computer Science PhD student at Johns Hopkins University. Her research interests are in cryptographic implementations and privacy, and her most recent work is on decentralized anonymous e-cash and credentials, including Zerocoin. She has served on numerous committees, including the Workshop on Bitcoin Research 2015 and USENIX Workshop on Offensive Technologies in 2015.

 

Matthew Green

Johns Hopkins University

Matthew is an Assistant Professor at Johns Hopkins Information Security Institute and award-winning researcher. He has been largely recognized for his work on privacy-enhanced information storage, anonymous payment systems, and cryptographic engineering. He developed Charm, a Python framework for rapidly prototyping cryptosystems, and libzerocoin, an implementation of the cryptographic routines for Zerocoin. He has served on committees such as the IEEE Security & Privacy Symposium 2015 and Bitcoin 2015 and co-founded the TrueCrypt audit project.

 

Ian Miers

Johns Hopkins University

Ian is a computer security PhD student at Johns Hopkins University focused on applied cryptography and privacy-preserving cryptographic protocols. His research interests include the relation between cryptography and identity and designing secure systems that are both developer and user friendly. He is also a main developer on the Charm cryptographic library.

 

Eran Tromer

Tel Aviv University

Eran is a faculty member at Tel Aviv University's School of Computer Science, where he is heading the Lab for Experimental Information Security and is codirector of the Check Point Institute for Information Security. His research is in cryptography and information security, with an emphasis of security risks from physical attacks and untrusted platforms. He cofounded the Succinct Computational Integrity and Privacy Research (SCIPR) Lab, whose cryptographic proof systems underlie Zerocash.

Madars Virza

MIT

Madars is a current computer science PhD candidate at MIT, where he focuses on zero-knowledge cryptography. He has had numerous publications on zkSNARKs, a topic that is central to the Zerocash protocol. Madars has presented his work at conferences across the world, including both the 2013 and 2014 International Cryptology Conference.

 

Engineers

Nathan Wilcox

Project Manager

Nathan is dedicated to open, secure technologies and has over 10 years of experience in software development, performance analysis, and security audits. Prior to Zcash, he managed development at Least Authority, where he led security audits for Ethereum, SpiderOak, Cryptocat, GlobaLeaks, and other projects. For fun, he enjoys developing tools for Python, Rust, and Ethereum.

 

Daira Hopwood

Engineering / Design

Daira has over 20 years experience as a software engineer, with a focus on security, and is a major contributor to the Tahoe-LAFS project. She participated in the standardization of the TLS protocol and Internationalized Domain Names. Daira also found security bugs and design flaws in Java Virtual Machines, wrote code for the Cryptix cryptography library, and completed security audits for the Caja Secure JavaScript project. In her spare time, she is designing a capability-secure programming language called "Noether".

 

Sean Bowe

Engineering

Sean is a cryptocurrency enthusiast who is excited by the intersection of breakthrough cryptography and software architecture. He built a simulation framework for consensus networks called Simbit and was recognized for simulating the Selfish Mining Attack. He enjoys programming in Rust and is currently creating a session-type system for formalizing network protocols.

Jack Grigg

Engineering

Jack is a core developer of the I2P anonymity network and lead developer of I2P Android. He has a keen interest in privacy and anonymity research, and enjoys helping other developers create privacy-respecting software. He is also a budding UX enthusiast. In his non-spare time, Jack has completed a PhD in Applied Physics at Lincoln University, New Zealand.

 

Jack Gavigan

COO

Jack has a background in financial technology, cyber security and trading systems, gained at companies like Deutsche Bank, Credit Suisse and Morgan Stanley (where he also worked as a trader). Jack has previously advised the UK government on digital currencies and blockchain technology.

 

Jay Graber

Communication / Engineering

Jay is a web developer with experience organizing political campaigns to protect privacy and the open internet.

 

Ariel Gabizon

Engineering

For most of his career, Ariel has focused exclusively on theoretical computer science, obtaining a PhD from the Weizmann Institute in 2008. A few years ago he discovered the world of bitcoin and blockchain technology, and sees it as a fascinating potential meeting place of beautiful theoretical computer science ideas and real-world applications. Motivated by this, he shifted his focus in 2014 from pure theory into making tools such as Zero-Knowledge proofs more practical and efficient.

Simon Liu

Engineering

Simon is a member of the founding team behind the MultiChain blockchain platform. He has over a decade of experience building native applications for Mac OS X and iOS having founded his own software company. He helped form Tokyo HackerSpace, loves disruptive peer-to-peer systems and used to code assembly language demos on the Amiga. Simon is a pragmatic polyglot on both client and server. He holds a BA in Computer Science from Cambridge University and lives in San Francisco, California.

Kevin Gallagher

Engineering / Devops

Kevin Gallagher is a DevOps engineer and Linux systems administrator assisting Zcash with infrastructure and operational security. He's also an activist who is committed to privacy, security and freedom of information. He previously worked for Freedom of the Press Foundation, a non-profit that supports transparency journalism. He’s been an advocate as the director of Free Barrett Brown, a support network and legal defense fund formed to help a jailed journalist. Additionally, he's recently done work with Transparency Toolkit, an organization that gathers open data on surveillance and human rights abuses and develops free software to analyze it, as well as the Library Freedom Project, a project to make real the promise of intellectual freedom and privacy within libraries.

 

Paige Peterson

Communication / Design

Paige has been immersed within the peer-to-peer technology world for 5 years and counting. Through roles with mesh networking startup, Open Garden, p2p storage and communications company, MaidSafe, and as Co-organizer for the San Francisco Bitcoin Meetup, she has gained appreciation for the diverse applications of decentralized networks. She enjoys exploring ways to simplify explanations of these seemingly complex topics and supporting better Internet security and privacy practices for more general audiences. Previously, she studied Interrelated Media at Massachusetts College of Art building interactive art projects with a focus on realistic simulations and abstract conceptualizations of natural systems and processes.

 

Advisors

Gavin Andresen

Bitcoin Foundation

Gavin is Chief Scientist at the Bitcoin Foundation and a former lead developer of Bitcoin. With over 25 years of software experience, he has headed a variety of projects, including co-founding a company that created multiplayer games for the blind and working as a lead developer at TruCoin.

 

Vitalik Buterin

Ethereum

Vitalik is the Founder and Chief Scientist of Ethereum. He is also both the Founder and a writer for Bitcoin Magazine, a venture that marked the beginning of his career in crypto in 2011. He is interested in creating secure, efficient, and trustworthy systems and advises a number of projects in the crypto space.

 

Andrew Miller

University of Maryland

Andrew is a computer science PhD student at the University of Maryland, where he contributes to the Maryland Cybersecurity Center and programming language lab. His research focuses on distributed systems and cryptography, and he has a special interest in decentralized systems. His research on Bitcoin was included in both the 2014 and 2015 IEEE Security and Privacy Symposium.

 

Arthur Breitman

Tezos

Arthur specializes in algorithmic trading, financial cryptography, and machine learning. He is currently working on Tezos, a generic and self-amending crypto-ledger. Prior to this work, he applied his skills at several large financial firms, including Goldman Sachs.

 

Joseph Bonneau

Stanford University, EFF

Joseph is a postdoctoral researcher at Stanford University and a Technology Fellow at Electronic Frontier Foundation. His research focuses on web security, cryptographic currencies, and applied cryptography, and his research has been published in top conferences and journals across the globe. He won the 2015 Best Reviewer Award (IEEE Security and Privacy) and the 2015 Best Student/Postdoctoral Paper Award (2015). He received his PhD from Cambridge University.

 

Gordon Mohr

Thunkpedia

Gordon is the creator of Thunkpedia and former technical lead for the Internet Archive's web archive projects. He also founded Bitzi, which served as a crowdsourced 'card catalog' about files on peer-to-peer networks.

 

Brian Warner

Tahoe-LAFS

Brian is a security engineer and software developer, having worked at Mozilla on Firefox Sync, the Add-On SDK, and Persona. He is co-founder of the Tahoe-LAFS distributed encrypted file store, and develops secure storage and communication tools.

 

Investors

Pantera Capital

Investment firm focused on the Bitcoin ecosystem.

Digital Currency Group

Investment company focused on Bitcoin and the blockchain.

Fenbushi Capital

A VC firm that invests exclusively in Blockchain-enabled companies.

London Trust Media

Invest in and mentor projects focused on internet privacy.

Evolve VC

Seed and A round startup fund.

Naval Ravikant

Founder and CEO of AngelList, Vast, and Epinions. Invested in Twitter, Heyzap, and Uber.

Niraj Mehta

Founder of Persistent Edge (FOHF) and Kilowatt Capital.

David Dacus

Founder of Metta Medical and HitPlay.

Roger Ver

Bitcoin Angel Investor. Founder of Memorydealers.com.

Alan Fairless

Co-founder and CEO of SpiderOak.

Ben Davenport

Co-founder and CTO at BitGo. Co-founder of Beluga.

Brian Cartmell

Founder of Spam Arrest, eNIC (Verisign), and Zevia.

James Nicholas

Inventor and investor.

Jonathan Perlow

Co-founder of Beluga. Current Software Engineer at Facebook. Previously at Google.

Charlie Songhurst

Founding partner of Katana Capital, also runs the Songhurst Group.

Adam Ludwin

Co-founder and CEO of Chain.

Devon Gundry

Co-founder and Chief Product Officer of Chain.

Ryan Smith

Co-founder and CTO of Chain.

Rop Gonggrijp

Hacker and one of the founders of XS4ALL.

Branson Bollinger

Entrepreneur and Investor; Co-founder of PRSONA.

Aaron Grieshaber

Entrepreneur and investor.

Erik Voorhees

Bitcoin entrepreneur. CEO of ShapeShift.io.

ShapeShift

Leading blockchain asset exchange.

Barry Silbert

Founder & CEO of Digital Currency Group.

VC firm focused on emerging blockchain & internet technologies.

Fred Ehrsam

Co-founder at Coinbase.

Sebastian Serrano

Co-founder and CEO of Ripio.com.

Xiaolai Li

Chinese Angel Investor

David LEE Kuo Chuen

Founder of Left Coast, LiBai and Dlee Capital Management.

Vlad Zamfir

Researcher, analyst & blockchain architect.