pulsar-contracts/build/src/utils/peripheral/sign.js

import { Field, PrivateKey, Signature } from 'o1js';
import { createWriteStream } from 'fs';
import { once } from 'events';
async function createRandomSignature(messageLength) {
    const privateKey = PrivateKey.random();
    let message = [];
    for (let i = 0; i < messageLength; i++) {
        message.push(Field.random());
    }
    const signature = Signature.create(privateKey, message);
    return {
        privateKey: privateKey.toJSON(),
        message: message.map((f) => f.toJSON()),
        signature: signature.toJSON(),
    };
}
async function saveSignaturesStreaming(iterations, _messageLength, filename) {
    const stream = createWriteStream(filename, { encoding: 'utf8' });
    stream.write('[');
    for (let i = 0; i < iterations; i++) {
        const messageLength = Math.floor(Math.random() * _messageLength) + 1;
        const entry = await createRandomSignature(messageLength);
        if (i > 0)
            stream.write(',');
        stream.write('\n' + JSON.stringify(entry));
    }
    stream.write('\n]');
    stream.end();
    await once(stream, 'finish');
    console.log(`Wrote ${iterations} signatures to ${filename}`);
}
await saveSignaturesStreaming(100000, 255, '3.json');
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