Neo World Improvement has developed a brand new multi-signature utility for Neo N3 named NEXO. Multi-signature, generally known as multi-sig, is a digital signature scheme that permits a bunch of customers to handle an account collectively, requiring a number of events to log off on transactions earlier than they are often executed.
NEXO distinguishes itself from comparable instruments like Gnosis Secure on Ethereum-based networks by using the inherent protocol-level capabilities of Neo N3. Which means in contrast to Ethereum-based options, which require the deployment of a separate sensible contract for every multi-sig association, NEXO operates straight throughout the Neo protocol, eliminating the necessity for extra sensible contract deployment and related prices.
Neo signature verification
The verification course of on Neo N3 is prime to understanding how NEXO features. In Neo, addresses (common and multi-sig) are derived from verification scripts. An everyday tackle verification script consists of an opcode to push public key information to the digital machine, adopted by the precise key information to be pushed, then lastly a name to the verify signature system perform:
PUSHDATA1 03faefc84682b1a1b887928414544d5ab8188d68ea14e68a0f597cdf4b01cb0099
SYSCALL System.Crypto.CheckSig
To derive the Neo public tackle from this script, there are two steps concerned. First, the script is hashed with SHA-256, then hashed once more with RIPEMD160, on this instance producing the output script hash 0xde1cce4c0004e42eb5caf25f01f2f8a5844ad20b. Subsequent, a model identifier is prepended to the script hash, permitting Legacy and N3 addresses to be distinguished. Lastly, the result’s encoded utilizing the Base58Check encoding scheme launched by Bitcoin: NLzUY9UXmYaWHJzBGok58h1PZRX5ML9EXt.
Multi-sig addresses on Neo act the identical means, simply with a barely completely different verification script when in comparison with unusual accounts. They begin with an opcode to push the variety of signatures required to cross verification, adopted by the general public key information for the signers, then an opcode to push the whole variety of keys used for the multi-sig. Lastly, the verify multisig syscall is used:
PUSH1
PUSHDATA1 03c14a4195e601b4b23d411acb06e0311d5cb33e1f9322e7213d8fd86107f726a2
PUSHDATA1 03faefc84682b1a1b887928414544d5ab8188d68ea14e68a0f597cdf4b01cb0099
PUSH2
SYSCALL System.Crypto.CheckMultisig
This instance verification script exhibits a 1-of-2 multi-sig, the place at the least one of many two key holders should present a signature to manage the account. The hash for this script is 0x27e8f96341e198982acb7f8370f21dfc3383fe3a, which can be Base58Check encoded together with the model identifier to derive the ultimate multi-sig public tackle NRHuGioGBRSuAgE1nptwZ8M7nrbyaThVWv.
NEXO options
NEXO leverages Neo’s structure to boost consumer expertise and safety. Customers can simply join their wallets to NEXO then create or view multi-sig accounts. Account creation includes specifying the variety of required signers and public keys for the tackle. The software will bear in mind the multi-sig account, permitting the designated signers to contribute their signatures as transactions are initiated. As soon as the required variety of signatures is reached, the transaction could also be relayed to the community to be finalized.
Furthermore, NEXO introduces extra functionalities, equivalent to adjustable transaction charge fee choices. Any signer, or the multi-sig account itself, may be designated to cowl the GAS charges, including one other layer of flexibility. The consumer interface of NEXO is designed to be intuitive, enabling customers not solely to ship tokens but in addition to carry out varied sensible contract invocations, thereby maximizing the utility and flexibility of the software.
The applying presently helps the NeoLine and OneGate wallets.
Customers can get began with NEXO on the hyperlink beneath:
https://nexo.ngd.community/
