Zcash Proof-of-Stake Research

In August, ECC shared its rationale for moving Zcash from a proof-of-work consensus mechanism to proof-of-stake.

Zcash Proof-of-Stake Research

NU5 activation and Halo Arc release delayed for remediation of consensus bug in testnet

During the course of testing NU5, a consensus bug emerged that caused the testnet chain to fork. The ECC Core […]

NU5 activation and Halo Arc release delayed for remediation of consensus bug in testnet

ECC Engineering: Year in Review

We had many successes in 2021 across all of our engineering-related teams including Core, Mobile, and DevSecOps, a team comprising what was previously the separate DevInfra and Security teams. These successes included the regular cadence of releases as well as breakthrough cryptographic research, developments to move the shielded wallet ecosystem forward, operational enhancements and advancements, and a continued demonstration of our commitment to security best practices, ensuring safe and secure releases and network upgrades. 

ECC Engineering: Year in Review

New Release 4.6.0-1

TL;DR: The 4.5.0, 4.5.1, and 4.5.1-1 zcashd nodes will reach End of Service on or about January 10th, 2022. Prior to that time, miners must upgrade to 4.6.0-1 and all other testnet and mainnet nodes should upgrade to either 4.6.0 or 4.6.0-1.

New Release 4.6.0-1

New Release 4.6.0

TL;DR: The 4.5.0, 4.5.1, and 4.5.1-1 zcashd nodes will reach End of Service on or about January 10, 2022. Prior […]

New Release 4.6.0

ECC roadmap calls for focus on wallet, proof of stake and interoperability

It has become clear that the best way for ECC to contribute to the Zcash community over the next three years is to release an official ECC wallet on top of a highly interoperable Zcash protocol that leverages proof-of-stake consensus.

ECC roadmap calls for focus on wallet, proof of stake and interoperability

NU5 security assessments complete

NU5 security assessments are complete, and no serious or critical issues were found in either audit.

NU5 security assessments complete

New Release 4.5.1-1

This is a required update for all testnet nodes, and is highly recommended for mainnet nodes if you were using the deprecated getaddressesbyaccount RPC method.

New Release 4.5.1-1

New Release 4.5.0

The code preparations for the Network Upgrade 5 consensus rules are finished and included in this release. The following ZIPs […]

New Release 4.5.0

Protocol Labs, Filecoin Foundation, Ethereum Foundation and Electric Coin Co. collaborating to unlock recursion in Halo 2 and explore the future of proofs

Electric Coin Co. (ECC) has entered into an agreement with Protocol Labs, the Filecoin Foundation, and the Ethereum Foundation to explore Halo R&D, including how the technology might be used in their respective ecosystems.

Protocol Labs, Filecoin Foundation, Ethereum Foundation and Electric Coin Co. collaborating to unlock recursion in Halo 2 and explore the future of proofs

What would a Zcash Proof-of-Stake transition look like?

A successful transition to Proof of Stake would necessarily require support from Zcash users, a legitimate governance process, and a well designed technical migration process. This post outlines what the technical migration process might look like at the top level.

What would a Zcash Proof-of-Stake transition look like?

Privacy-leak bug discovered in Nighthawk and ECC wallets

Nighthawk Wallet iOS and ECC Reference Wallet iOS users should upgrade to the latest versions in order to remediate a […]

Privacy-leak bug discovered in Nighthawk and ECC wallets