AmaraLink is a data cross-chain bridge of multisignature threshold technology, striving to become an crypto data conversion hub connecting Polkadot and other public chains. At the current stage, we are developing a bridge to connect Moonriver and Polygon/Ethereum. We hope to conduct a demonstration in October to further improve it. It will be officially open to all users after the audit.
MaraLink adopts multisignature threshold technology with following features:
First, in terms of mechanism, at the beginning of the design of Maralink, we restricted the data in the cross-chain bridge contract. To be specific, there is a limit on the flow of cross-chain data on a daily basis. It is designed to guarantee the security of data to the greatest degree on mechanism level, so the data locked in the entire cross-chain bridge protocol have a limited quantity, thus reducing the risk of hacker attacks.
Second, in terms of technology, we adopted multi-signature technology to verify each flow of data on the premise of guaranteeing cross-chain experience, so the security level of the cross-chain bridge is greatly improved.
Third, MaraLink supports up to 200 verifiers for nomination, adding more verifiers is an effective way to avoid the situation that a single administrator malconduct. At the same time, through the DRAND consensus random algorithm, the main verifier of each transaction is selected to collect the signatures of other verifiers, which improves the verification efficiency. Moreover, in order to improve efficiency and ensure security in the meantime, the signatures collected by the main verifier will be verified again through back-sign, thus avoiding the situation of the main verifier's malconduct.