import {expect} from "chai"; import {IBls} from "../../src/interface"; import {getN, randomMessage} from "../util"; export function runIndexTests(bls: IBls): void { // eslint-disable-next-line @typescript-eslint/explicit-function-return-type function getRandomData() { const sk = bls.PrivateKey.fromKeygen(); const pk = sk.toPublicKey(); const msg = randomMessage(); const sig = sk.signMessage(msg); return {sk, pk, msg, sig}; } describe("verify", () => { it("should verify signature", () => { const {pk, msg, sig} = getRandomData(); const pkHex = pk.toHex(); const isValid = bls.verify(pk.toBytes(), msg, sig.toBytes()); expect(isValid, "fail verify").to.be.true; // Make sure to not modify original pubkey when verifying expect(pk.toHex()).to.be.equal(pkHex, "pubkey modified when verifying"); }); it("should fail verify empty signature", () => { const {pk, msg} = getRandomData(); const emptySig = Buffer.alloc(96); const isValid = bls.verify(pk.toBytes(), msg, emptySig); expect(isValid).to.be.false; }); it("should fail verify signature of different message", () => { const {pk, sig} = getRandomData(); const msg2 = randomMessage(); const isValid = bls.verify(pk.toBytes(), msg2, sig.toBytes()); expect(isValid).to.be.false; }); it("should fail verify signature signed by different key", () => { const {msg, sig} = getRandomData(); const {pk: pk2} = getRandomData(); const isValid = bls.verify(pk2.toBytes(), msg, sig.toBytes()); expect(isValid).to.be.false; }); }); describe("verify multiple", () => { it("should verify aggregated signatures", () => { const sks = getN(4, () => bls.PrivateKey.fromKeygen()); const msgs = getN(2, () => randomMessage()); const pks = sks.map((sk) => sk.toPublicKey()); const sigs = [ sks[0].signMessage(msgs[0]), sks[1].signMessage(msgs[0]), sks[2].signMessage(msgs[1]), sks[3].signMessage(msgs[1]), ]; const aggPubkeys = [ bls.aggregatePubkeys([pks[0], pks[1]].map((pk) => pk.toBytes())), bls.aggregatePubkeys([pks[2], pks[3]].map((pk) => pk.toBytes())), ]; const aggSig = bls.aggregateSignatures(sigs.map((sig) => sig.toBytes())); expect(bls.verifyMultiple(aggPubkeys, msgs, aggSig), "should be valid").to.be.true; expect(bls.verifyMultiple(aggPubkeys.reverse(), msgs, aggSig), "should fail - swaped pubkeys").to.be.false; }); it("should verify aggregated signatures - same message", () => { const n = 4; const msg = randomMessage(); const sks = getN(n, () => bls.PrivateKey.fromKeygen()); const pks = sks.map((sk) => sk.toPublicKey()); const sigs = sks.map((sk) => sk.signMessage(msg)); const aggregateSignature = bls.aggregateSignatures(sigs.map((sig) => sig.toBytes())); const isValid = bls.verifyMultiple( pks.map((pk) => pk.toBytes()), getN(4, () => msg), // Same message n times aggregateSignature ); expect(isValid).to.be.true; }); it("should fail to verify aggregated signatures - no public keys", () => { const sig = Buffer.alloc(96); const msg1 = randomMessage(); const msg2 = randomMessage(); const isValid = bls.verifyMultiple([], [msg2, msg1], sig); expect(isValid).to.be.false; }); }); }