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Truthful PVP on/off-chain with ECDSA. Goal: To realize verifiable pvp… | by ScruffyStudios | Coinmonks loanread cryptocurrency information


Aim: To realize verifiable pvp outcomes on chain utilizing ECDSA

At first I had no concept find out how to obtain this, however after a few weeks it hit me. Use ECDSA signatures earlier than and after the match to make sure all individuals are registered and submit these signatures to the chain through a centralized pockets. Web2 safety here’s a should. You shouldn’t attempt to implement a manufacturing model of this with out spending important time on web2 safety since we use a centralized pockets.

Regardless….

hashedMessage = keccak256(
player1Addr,
player2Addr,
player1TokenID,
player2TokenID,
bool begin,
string distinctive ID
)

I forgot so as to add the distinctive ID. You’ll want to retailer the ID in a mapping as it’s used after every perform name. mapping(string => bool) must be high-quality.

Instance

For these of you who are usually not conscious of ECDSA (Elliptical Curve Digital Signature Algorithm), right here is an implementation of it. _hashedMessage is prefixed after which we recuperate the signer utilizing the ecrecover perform and submit the hashed message in addition to the three components of the signature _v, _r, _s.

Are you able to see a use case for this in your challenge?

When you discovered this fascinating, why not test it out!
https://medium.com/p/cd06bca5e541

Solidity Dev Examine Group — https://discord.gg/KzbcGmrnfN

-Polygon Alliance – https://www.polygonalliance.com/

-Polygon Alliance Discord — https://discord.gg/kJKPCGQu66

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Polygon/Eth/Bsc — 0x4A581E0eaf6b71D05905e8E6014dc0277A1B10ad

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