ProofRequestLibrary

State Variables

PROOF_REQUEST_TYPE

Id is uint256 as for user defined types, the eip712 type hash uses the underlying type.

string constant PROOF_REQUEST_TYPE =
    "ProofRequest(uint256 id,Requirements requirements,string imageUrl,Input input,Offer offer)";

PROOF_REQUEST_TYPEHASH

bytes32 constant PROOF_REQUEST_TYPEHASH = keccak256(
    abi.encodePacked(
        PROOF_REQUEST_TYPE,
        InputLibrary.INPUT_TYPE,
        OfferLibrary.OFFER_TYPE,
        PredicateLibrary.PREDICATE_TYPE,
        RequirementsLibrary.REQUIREMENTS_TYPE
    )
);

Functions

eip712Digest

Computes the EIP-712 digest for the given proof request.

function eip712Digest(ProofRequest memory request) internal pure returns (bytes32);

Parameters

Name	Type	Description
`request`	`ProofRequest`	The proof request to compute the digest for.

Returns

Name	Type	Description
`<none>`	`bytes32`	The EIP-712 digest of the proof request.

verifyClientSignature

Verifies the client's signature over the proof request.

function verifyClientSignature(ProofRequest calldata, bytes32 structHash, address addr, bytes calldata signature)
    internal
    pure
    returns (bytes32);

Parameters

Name	Type	Description
`<none>`	`ProofRequest`
`structHash`	`bytes32`	The EIP-712 struct hash of the proof request.
`addr`	`address`	The address of the client.
`signature`	`bytes`	The signature to validate.

Returns

Name	Type	Description
`<none>`	`bytes32`	The struct hash if the signature is valid.

extractProverSignature

Extracts the prover's signature for the given proof request.

function extractProverSignature(ProofRequest calldata, bytes32 structHash, bytes calldata proverSignature)
    internal
    pure
    returns (address);

Parameters

Name	Type	Description
`<none>`	`ProofRequest`
`structHash`	`bytes32`	The EIP-712 struct hash of the proof request.
`proverSignature`	`bytes`	The prover's signature to extract.

Returns

Name	Type	Description
`<none>`	`address`	The address of the prover.

validateRequest

Validates the proof request.

function validateRequest(
    ProofRequest calldata request,
    mapping(address => Account) storage accounts,
    address client,
    uint32 idx
) internal view returns (uint64 deadline1);

Parameters

Name	Type	Description
`request`	`ProofRequest`	The proof request to validate.
`accounts`	`mapping(address => Account)`	The mapping of accounts.
`client`	`address`	The address of the client.
`idx`	`uint32`	The index of the request.

Returns

Name	Type	Description
`deadline1`	`uint64`	The deadline for the request.