43 lines
1.3 KiB
TypeScript
43 lines
1.3 KiB
TypeScript
import { randomBytes } from "crypto";
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import {
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loadTrustedSetup,
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freeTrustedSetup,
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blobToKzgCommitment,
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computeAggregateKzgProof,
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verifyAggregateKzgProof,
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BYTES_PER_FIELD,
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FIELD_ELEMENTS_PER_BLOB,
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} from "./kzg";
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const SETUP_FILE_PATH = "../../src/trusted_setup.txt";
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const BLOB_BYTE_COUNT = FIELD_ELEMENTS_PER_BLOB * BYTES_PER_FIELD;
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const generateRandomBlob = () => new Uint8Array(randomBytes(BLOB_BYTE_COUNT));
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describe("C-KZG", () => {
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beforeAll(() => {
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loadTrustedSetup(SETUP_FILE_PATH);
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});
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afterAll(() => {
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freeTrustedSetup();
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});
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it("computes the correct commitments and aggregate proofs from blobs", () => {
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const blobs = new Array(2).fill(0).map(generateRandomBlob);
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const commitments = blobs.map(blobToKzgCommitment);
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const proof = computeAggregateKzgProof(blobs);
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expect(verifyAggregateKzgProof(blobs, commitments, proof)).toBe(true);
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});
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it("fails when given incorrect commitments", () => {
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const blobs = new Array(2).fill(0).map(generateRandomBlob);
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const commitments = blobs.map(blobToKzgCommitment);
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commitments[0][0] = commitments[0][0] === 0 ? 1 : 0; // Mutate the commitment
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const proof = computeAggregateKzgProof(blobs);
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expect(() =>
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verifyAggregateKzgProof(blobs, commitments, proof)
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).toThrowError("Invalid commitment data");
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});
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});
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