Awesome Privacy on Blockchains

This is a combination of papers and articles that cover various aspects of blockchain privacy.

High-level articles

• Privacy in Cryptocurrencies: An Overview
• Privacy in Cryptocurrencies: Mixing-based Approaches
• Zeth & Nightfall: the differences in approach
• Blockchain Research Newsletter: Zether and ZEXE
• In-depth overview of Privacy in Bitcoin
• Privacy and Cryptocurrency, Part 1: How Private is Bitcoin?
• Privacy and Cryptocurrency, Part 2: Bitcoin Wallets
• Privacy and Cryptocurrency, Part 3: Should You Use a Privacy Coin
• Zama Private Smart Contracts using Homomorphic Encryption

Talks and Lectures

• Alessandro Chiesa on Zerocash at CESC2017
• Bitcoin and Anonymity
• Satoshi has no clothes: failures in on-chain privacy
• The state of Privacy in Cryptocurrencies

Layer 1

• Increasing Anonymity in Bitcoin
• Extending the Anonymity of Zcash
• zkay: Specifying and Enforcing Data Privacy in Smart Contracts
• ZeeStar: Private Smart Contracts by Homomorphic Encryption and Zero-Knowledge Proofs

Layer 2

Mixers

• Zeth
• Mobius
• MixEth
• ShareLock
• CoinJoin
• JoinMarket
• MixCoin: Anonymity for Bitcoin with Accountable Mixes
• CoinParty
• TumbleBit
• Many out of many proofs with applications to anonymous Zether

Confidential Transactions

• Confidential Transactions
• Zether
• Aztec Protocol
• Nightfall

Payment/State Channels

• BOLT
• Blindly Signed Contracts: Anonymous on-Blockchain and Off-blockchain Bitcoin Transactions
• Anonymous Multi-Hop Locks for Blockchain Scalability and Interoperability

Plasma

• ZEXE on Plasma MoreVP

MPC Platforms for Privacy-Preserving smart contracts

• Enigma

Alternate Blockchain designs

Blockchains with private smart contracts

• Zexe
• One-time, zero sum ring signature
• Hawk
• Arbitrum
• ZkVM
• Ekiden

Using Zk-Snarks

• Zerocash
• Zerocoin
• Accountable Privacy for Decentralized Anonymous Payments

Using other cryptographic primitives

• QuisQuis
• MimbleWimble
• Cryptonote
• Lelantus
• One-out-of-Many Proofs
• ZkLedger
• Cryptonote+
• RingCT

Privacy-Preserving PoS Protocols

• Ouroborous Crypsinous
• Proof of stake protocols for privacy aware blockchains

Privacy Preserving Light Client Designs

• ZLiTE
• Neutrino
• BiTE

Economics of Privacy Blockchains

• Rational Zero: Economic Secuirty of Zerocoin for Everlasting Security
• The price of anonymity: empirical evidence from a market for Bitcoin anonymization
• Incentivizing Privacy in Cryptocurrencies

Enhancements

• Bulletproofs

Instantiations

Proof of Concepts

• MixEth Repo
• Miximus
• RingToken
• Laundromat
• Tornado Mixer

Wallets

• Wasabi Wallet
• Samourai Wallet
• CashShuffle

Network layer privacy for blockchains

• Dandelion
• Dandelion++
• A Flexible Network Approach to Privacy of Blockchain Transactions

Analyses on Anonymity and Privacy in blockchains

• Anonymity Properties of the Bitcoin P2P Network
• A Survey on Security and Privacy Issues of Bitcoin
• An empirical analysis of traceability of the monero blockchain
• Obfuscation in Bitcoin: Tecniques and Politics
• Anonymous Alone? Measuring Bitcoin's Second-Generation Anonymization Techniques
• An Empirical Analysis of Anonymity in Zcash
• A fistful of Bitcoins
• Privacy-enhancing overlays in Bitcoin
• Map-Z: Exposing the Zcash Network in Times of Transition

De-anonymization Techniques

• Tracing Transactions Across Cryptocurrency Ledgers
• FloodXMR: Low-cost transaction flooding attack with Monero's bulletproof protocol

Privacy coins

Monero

• Zero to Monero
• Mastering Monero

Zcash

• Zcash Protocol Specification

Dash

Grin/Beam

• Grin
• Beam

People to Follow

• Aaron Kumavis
• Anna Kaplan
• BarryWhiteHat
• Charles Guillemet
• Chelsea H. Komlo
• Daniel J Bernstein
• David Wong
• Deidre Connolly
• Harry Halpin
• Ian Miers
• Izaak Meckler
• John Adler
• Justin Ehrenhofer
• Kobi Gurkan
• Madars Virza
• Matthew Green
• Mikerah
• Morten Dahl
• Pascal Paillier
• Phil Daian
• Rand Hindi
• Sean Bowe
• Tux
• Wei Jie
• Zooko

Related Lists

• Zero-Knowledge Started Pack
• Zero Knowledge papers
• Awesome Zero-Knowledge Proofs
• Awesome ZK