CTF-Registry

This registry has been deployed on Optimism mainnet at: 0xf6aE79c0674df852104D214E16AC9c065DAE5896

This registry was created for letting CTF players register their solutions.

Usage

Register

function register(uint8 ctfId, string calldata solverHandle, bytes32 codeHash, uint256 gas) public;

To register their solution, players will call this function with the following args:

Parameter Name	Description	Example
ctfId	The ID of the CTF	0x69
solverHandle	The handle for the solver	"devtooligan"
codeHash	The hash of the code	0xb0ffedc0de
gas	The amount of gas specified	420

Note: Calling register() more than once for a given ctfId will overwrite the previous solution submitted.

View functions

In addition to registering, there are some helpful view functions for managing solutions.

    // Retrieves array of addresses of solvers for a given `ctfId`
    function getSolvers(uint8 ctfId) public view returns (address[] memory)

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    //Retrieves address of solver at index for a given `ctfId`.
    function getSolver(uint8 ctfId, uint256 index) public view returns (address)

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    //Retrieves array of CtfSolution structs for a given `ctfId`.
    function getSolutions(uint8 ctfId) public view returns (CtfSolution[] memory ctfSolutions)

    struct CtfSolution {
        uint8 ctfId;
        uint64 timestamp;
        uint24 gas;
        address solverAddress;
        bytes32 codeHash;
        string solverHandle;
    }

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    //Retrieves array of CtfSolution structs for a given `ctfId` sorted by time submitted (`timestamp`) ascending.
    function getSolversRankedByTimestamp(uint8 ctfId) public view returns (CtfSolution[] memory sortedSolutions)

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    //Retrieves array of CtfSolution structs for a given `ctfId` sorted by `gas` ascending.
    function getSolversRankedByGas(uint8 ctfId) public view returns (CtfSolution[] memory sortedSolutions)

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