@unirep/circuits/src/SignupProof.js

Client library for circuit related functions which are used in UniRep protocol.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SignupProof = void 0;
const type_1 = require("./type");
const BaseProof_1 = require("./BaseProof");
const utils_1 = require("./utils");
/**
 * A class representing a [signup proof](https://developer.unirep.io/docs/circuits-api/classes/src.SignupProof). Each of the following properties are public signals for the proof.
 */
class SignupProof extends BaseProof_1.BaseProof {
    /**
     * @param publicSignals The public signals of the user sign up proof that can be verified by the prover
     * @param proof The proof that can be verified by the prover
     * @param prover The prover that can verify the public signals and the proof
     * @example
     * ```ts
     * import { SignupProof } from '@unirep/circuits'
     * const data = new SignupProof(publicSignals, proof)
     * ```
     */
    constructor(publicSignals, proof, prover) {
        super(publicSignals, proof, prover);
        /**
         * The index of the data in the public signals
         */
        this.idx = {
            identityCommitment: 0,
            stateTreeLeaf: 1,
            control: 2,
        };
        this.identityCommitment = BigInt(this.publicSignals[this.idx.identityCommitment]);
        this.stateTreeLeaf = BigInt(this.publicSignals[this.idx.stateTreeLeaf]);
        this.control = BigInt(this.publicSignals[this.idx.control]);
        const { chainId, epoch, attesterId } = (0, utils_1.decodeSignupControl)(this.control);
        this.chainId = chainId;
        this.epoch = epoch;
        this.attesterId = attesterId;
        this.circuit = type_1.Circuit.signup;
    }
    /**
     * Pack several variables into one `bigint` variable.
     * @param config The variables that will be packed.
     * @returns The control
     * @example
     * ```ts
     * SignupProof.buildControl({
     *  epoch,
     *  attesterId,
     *  chainId
     * })
     * ```
     */
    static buildControl({ attesterId, epoch, chainId }) {
        const control = (0, utils_1.buildSignupControl)({
            attesterId: BigInt(attesterId),
            epoch: BigInt(epoch),
            chainId: BigInt(chainId),
        });
        return control;
    }
}
exports.SignupProof = SignupProof;