@nexeraprotocol/nexera-id-sig-gating-contracts NPM

@nexeraprotocol/nexera-id-sig-gating-contracts

Signature Based Gating: users are verified in our back-end and receive authorization signatures through our api.

Architecture Overview

./contracts/gatedExamples/ contains examples of an NFT Minter using our signature based gating contracts. /**

Example Gated NFT Minter NFT minting contract with gated access based on off-chain signature verification. This contract extends ERC721 for NFT functionality, TxAuthDataVerifier for signature verification, and Ownable for ownership management.
Example Gated NFT Minter (Upgradeable) Upgradeable NFT minting contract with gated access based on off-chain signature verification. This contract extends ERC721Upgradeable for NFT functionality, TxAuthDataVerifierUpgradeable for signature verification, and OwnableUpgradeable for ownership management.
Example Multiple Inputs Contract This contract demonstrates a contract inheriting from TxAuthDataVerifier to update variables with signature verification. This contract tests more complex inputs such as bytes inputs or no inputs
Non Gated Example NFT Minter for comparison

./contracts/sigVerifiers/ contains the smart contracts used to verify signatures

Base Transaction Authentication Data Verifier Provides mechanisms for verifying transaction authentication data, including signature verification and nonce management. This contract is designed to be extended by other contracts requiring transaction authentication based on digital signatures. It includes functionality for:
Verifying transaction signatures against a specified signer address.
Ensuring transactions have not expired based on their block expiration.
Incrementing nonces to prevent replay attacks.
The contract utilizes OZ SignatureChecker for signature verification (compatible with both EOA and smart contract signers). We recommend our customers set this to point to our deployed NexeraIDSignerManager contract.
Transaction Authentication Data Verifier Contract for verifying transaction authentication data, including signature verification and nonce management. It extends BaseTxAuthDataVerifier to provide core functionality for transaction data verification and inherits Context for access control utilities.
Transaction Authentication Data Verifier (Upgradeable) Upgradeable contract for verifying transaction authentication data, including signature verification and nonce management. It extends BaseTxAuthDataVerifier to provide core functionality for transaction data verification. It is intended to be deployed behind a proxy for upgradeability.