@zkp2p/reclaim-witness-sdk
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64 lines • 4.48 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.delay = delay;
exports.randomPrivateKey = randomPrivateKey;
exports.getRandomPort = getRandomPort;
exports.verifyNoDirectRevealLeaks = verifyNoDirectRevealLeaks;
exports.getFirstTOprfBlock = getFirstTOprfBlock;
const crypto_1 = require("crypto");
const mocks_1 = require("../tests/mocks");
function delay(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
function randomPrivateKey() {
return '0x' + (0, crypto_1.randomBytes)(32).toString('hex');
}
function getRandomPort() {
return Math.floor(Math.random() * 5000 + 5000);
}
/**
* Verifies that no direct reveal accidentally leaked
* the key. This is done by checking that no other
* application data packets were sent with the same key
*
* Uses the spy on preparePacketsForReveal to get the
* tls transcript and reveals map that was used.
*/
function verifyNoDirectRevealLeaks() {
if (!mocks_1.SPY_PREPARER.mock.calls.length) {
return;
}
const [tlsTranscript, revealsMap] = mocks_1.SPY_PREPARER.mock.calls[0];
for (const [packet, reveal] of revealsMap.entries()) {
if (reveal.type !== 'complete') {
continue;
}
if (packet.type === 'plaintext') {
continue;
}
// find any other packets with the same key
// that do not have a reveal & were application data.
// If we find any, it means we've leaked the key
const otherPacketsWKey = tlsTranscript
.filter(({ message }) => (message.type === 'ciphertext'
&& !revealsMap.get(message)
&& message.encKey === packet.encKey
&& message.contentType === 'APPLICATION_DATA'));
expect(otherPacketsWKey).toHaveLength(0);
}
}
/**
* Gets the first TOPRF block from the transcript.
* Returns undefined if no TOPRF block is found.
*/
function getFirstTOprfBlock({ transcript }) {
var _a;
for (const { reveal } of transcript) {
for (const proof of ((_a = reveal === null || reveal === void 0 ? void 0 : reveal.zkReveal) === null || _a === void 0 ? void 0 : _a.proofs) || []) {
if (proof.toprf) {
return proof.toprf;
}
}
}
}
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