Reinforcing the Security of the Sapling MPC
The engineering and cryptography team at Zcash makes very large efforts to minimize risk. This is always a positive thing, […]
Improved zk-SNARK Multi-party Computation Protocol
zk-SNARKs – the zero-knowledge proofs at the core of Zcash – require a parameter generation ceremony to take place for […]
An Update on Atomic Trades
Decentralization is a key characteristic of cryptocurrencies because it removes dependence on trusting third parties in order to transact between […]
Explaining SNARKs Part VII: Pairings of Elliptic Curves
<< Part VI In Part VI, we saw an outline of the Pinocchio zk-SNARK. We were missing two things – […]
Explaining SNARKs Part VI: The Pinocchio Protocol
<< Part V In part V we saw how a statement Alice would like to prove to Bob can be […]
Explaining SNARKs Part V: From Computations to Polynomials
<< Part IV In the three previous parts, we developed a certain machinery for dealing with polynomials. In this part, […]
Explaining SNARKs Part IV: How to make Blind Evaluation of Polynomials Verifiable
<< Part III In this part, we build on Part II and III to develop a protocol for verifiable blind […]
Explaining SNARKs Part III: The Knowledge of Coefficient Test and Assumption
<< Part II In Part II, we saw how Alice can blindly evaluate the hiding :math:`E(P(s))` of her polynomial :math:`P` […]
Explaining SNARKs Part II: Blind Evaluation of Polynomials
<< Part I In this post, we recall the notion of a polynomial, and explain the notion of “blind evaluation” […]
Explaining SNARKs Part I: Homomorphic Hidings
Constructions of zk-SNARKs involve a careful combination of several ingredients; fully understanding how these ingredients all work together can take […]
An Update on Integrating Zcash on Ethereum (ZoE)
Members of the Ethereum R&D team and the Zcash Company are collaborating on a research project addressing the combination of […]
How Transactions Between Shielded Addresses Work
In ‘Anatomy of A Zcash Transaction’ we gave a general overview of Zcash Transactions. The purpose of this post is […]