Halo: Recursive Proof Composition without a Trusted Setup

Sean Bowe, an engineer and cryptographer at Electric Coin Company (ECC), has discovered a technique for creating practical, scalable and […]

Halo: Recursive Proof Composition without a Trusted Setup

Reducing Shielded Proving Time in Sapling

Since the successful Sapling network upgrade, we have already seen an increased adoption of shielded addresses in the Zcash ecosystem. […]

Reducing Shielded Proving Time in Sapling

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, […]

Reinforcing the Security of the Sapling MPC

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 […]

Improved zk-SNARK Multi-party Computation Protocol

Zerocoin Electric Coin Company Integrates Zero-knowledge Security Technology on J.P. Morgan’s Quorum

New York, October 17, 2017 – The Zerocoin Electric Coin Company and J.P. Morgan today announced the integration, and initial […]

Zerocoin Electric Coin Company Integrates Zero-knowledge Security Technology on J.P. Morgan’s Quorum

Ethereum Adoption of zk-SNARK Technology

The Ethereum Metropolis (Byzantium) upgrade adds a new cryptographic tool (zk-SNARKs) that was pioneered by Zcash. The addition of zk-SNARK […]

Ethereum Adoption of zk-SNARK Technology

Cultivating Sapling: Faster zk-SNARKs

Zcash’s next major upgrade, codenamed Sapling, will feature a set of groundbreaking performance improvements for our shielded transactions. In the […]

Cultivating Sapling: Faster zk-SNARKs

Cultivating Sapling: New Crypto Foundations

Zcash’s next major protocol upgrade, codenamed Sapling, will feature a number of improvements to the performance, security and usability of […]

Cultivating Sapling: New Crypto Foundations

Pay-to-sudoku Revisited

Last year, I created a project called pay-to-sudoku which was the world’s first implementation of a zero-knowledge contingent payment (ZKCP). […]

Pay-to-sudoku Revisited

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 VII: Pairings of Elliptic Curves

Press release: Zero-knowledge Security Layer to be Added to Quorum Blockchain Platform

The Zerocoin Electric Coin Company (ZECC), developers of the Zcash™ digital currency, today announced a partnership with J.P. Morgan, one […]

Press release: Zero-knowledge Security Layer to be Added to Quorum Blockchain Platform

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 VI: The Pinocchio Protocol