Audit of Centrifuge’s Tinlake Contracts + Actions

Overview Centrifuge has requested that Least Authority perform a security audit of their Tinlake Platform, a smart contracts framework on Ethereum that enables borrowers to draw loans against non-fungible assets. Any assets represented on-chain as Non-Fungible Tokens (NFTs) are financed by issuing an ERC-20 token against all of the collateral NFTs that are deposited into …

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Using ZKAPs to Disconnect Payment Data from Service Data

A note from the team: we’re continually looking for possible applications of ZKAPs in a variety of scenarios. If there is a product or project you’re working on that you would like to test ZKAPs with, don’t hesitate to get in touch! Last month, our team, the Least Authoritarians, gave two presentations on ZKAPs—zero-knowledge access …

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Audit of ChainSafe Utility Libraries

Overview ChainSafe has requested that Least Authority perform a security audit of their Lodestar utility libraries. Lodestar is an Ethereum 2.0 implementation of the Beacon Chain. The following utility libraries are considered in scope: Persistent Merkle Tree: https://github.com/chainsafe/persistent-merkle-tree BLS key derivation and hd key utilities: https://github.com/ChainSafe/bls-hd-key Key management for BLS curves: https://github.com/ChainSafe/bls-keygen BLS key store: …

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Audit of TzBTC for the Tezos Foundation

Overview The Tezos Foundation requested that Least Authority perform a security audit of TzBTC, a BTC-backed token on Tezos. TzBTC enables the compliant issuance of a fully Bitcoin-backed token on the Tezos blockchain while aiming to eradicate the risks of a single-point-of-failure. This is achieved by dividing the various tasks into keyholders that are responsible …

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