The team behind Gnosis Secure multi-sig and Gnosis Chain has introduced a hash oracle aggregator for blockchain bridges.
The new aggregator should increase bridge security by forcing many bridges to authenticate a withdrawal before it can be validated, according to Gnosis CEO Martin Köppelmann.
According to the announcement, a number of bridge protocols, including Succinct Labs, DendrETH, ZK Collective, Connext, Celer, LayerZero, Axiom, Wormhole, and LI.FI, have already committed to integrating with Hashi.
According to a report by Token Terminal, bridges were targeted for theft in 2021 and 2022 for more than $2 billion. Some bridge hacks have been the result of coding errors, while others have been the result of an attacker acquiring control of a multi-sig governance wallet.
In order to make these cross-chain transactions more secure across the entire blockchain ecosystem, Köppelmann claims that Hashi can take the following first step by mandating that withdrawals be verified by more than one bridge rather than just one:
“Hashi is about essentially creating this aggregator that can use different bridges and basically say they all need to agree to the same message […] If they do, great, then we can be really, really certain that this message is actually real and if they disagree […] Then we know we need to escalate to governance, we need to halt the bridge.”
Furthermore, Köppelmann underlined that Hashi makes it possible for a protocol to stop governance from being involved when there is no conflict across particular bridges, which helps to prevent multi-sig governance attacks.
“Here you can have this nice tradeoff where you say ‘the governance is not allowed to do anything,’ so it cannot interfere with the system unless there is explicitly a conflict or a bug,” he explained. “So as soon as those bridges that are supposed to report on the same thing […] Disagree, well then the governance is allowed to interfere, otherwise governance has no role. That’s Hashi”
Those are Hashi.During the Uniswap bridge discussion in December and January, the concept of a multi-bridge aggregator gained popularity. Despite the fact that Wormhole was ultimately selected as Uniswap’s bridge provider, officials from Celer, LiFi, and deBridge as well as other participants came to the conclusion that moving forward, a multi-bridge aggregation solution was required.
