@waku/rln/bundle/packages/rln/dist/zerokit.js

RLN (Rate Limiting Nullifier) implementation for Waku

import { generateSeededExtendedMembershipKey } from '../../../node_modules/@waku/zerokit-rln-wasm/rln_wasm.js';
import { DEFAULT_RATE_LIMIT } from './contract/constants.js';
import { IdentityCredential } from './identity.js';

class Zerokit {
    zkRLN;
    witnessCalculator;
    _rateLimit;
    constructor(zkRLN, witnessCalculator, _rateLimit = DEFAULT_RATE_LIMIT) {
        this.zkRLN = zkRLN;
        this.witnessCalculator = witnessCalculator;
        this._rateLimit = _rateLimit;
    }
    get getZkRLN() {
        return this.zkRLN;
    }
    get getWitnessCalculator() {
        return this.witnessCalculator;
    }
    get rateLimit() {
        return this._rateLimit;
    }
    generateSeededIdentityCredential(seed) {
        const stringEncoder = new TextEncoder();
        const seedBytes = stringEncoder.encode(seed);
        const memKeys = generateSeededExtendedMembershipKey(this.zkRLN, seedBytes);
        return IdentityCredential.fromBytes(memKeys);
    }
}

export { Zerokit };