Polkadot Consensus Part 1: Enhanced Economic Security via NPoS
The first installment in the NPoS series describes how Polkadot maintains a more secure, open and more decentralized network due to its novel consensus system, NPoS.
XCMv2 Audit Completed by Quarkslab
XCMv2 has now been audited for a second time to discover any potential cross-chain security or fairness issues, including logical bugs, denial-of-service, and incorrect lock/unlock or burn/mint on both chains
Trusted Execution Environments and the Polkadot Ecosystem
The use of Trusted Execution Environments (TEEs) in combination with the Substrate blockchain modular framework is providing new solutions to enable real-use applications on the next generation of the web.
Polkadot Consensus Part 4: Security
So far, we have discussed how BABE creates blockchain candidates and GRANDPA finalizes them. We know that we need more than two-thirds of validators to properly follow the protocol. But how many validators are there? How are they chosen? Why should they follow the rules?
Polkadot Consensus Part 2: GRANDPA
In the introduction to this series, I outlined that a consensus algorithm helps a network of computers answer three questions. GRANDPA addresses the second.
Polkadot Consensus Part 1: Introduction
This series will be a discussion about security and consensus in Polkadot. In part 1, we will define some terms before getting into the details of how Polkadot creates and secures blocks.
The Polkadot Claims Audit
Web3 Foundation engaged Chain Security for an audit of the Polkadot Claims smart contract. The audit found 0 Critical, 0 High, 2 Medium and 9 Low level issues, all of which have been resolved in the latest commits to the code.
