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chainsafe-bls/test/unit/index.test.ts

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import bls from "../../src";
import {Keypair} from "../../src/keypair";
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import {sha256} from "js-sha256";
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import {G2point} from "../../src/helpers/g2point";
import {expect} from "chai";
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import {describe, it} from "mocha";
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describe("test bls", function () {
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describe("aggregate pubkey", function () {
it("should aggregate empty array", function () {
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expect(bls.aggregatePubkeys([])).to.not.throw;
});
});
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describe("verify", function() {
it("should verify signature", () => {
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const keypair = Keypair.generate();
const messageHash = Buffer.from(sha256.arrayBuffer("Test"));
const domain = Buffer.alloc(8, 1);
const signature = keypair.privateKey.sign(
G2point.hashToG2(messageHash, domain)
);
const result = bls.verify(
keypair.publicKey.toBytesCompressed(),
messageHash,
signature.toBytesCompressed(),
domain
);
expect(result).to.be.true;
});
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it("should not modify original pubkey when verifying", () => {
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const keypair = Keypair.generate();
const messageHash = Buffer.from(sha256.arrayBuffer("Test"));
const domain = Buffer.alloc(8, 1);
const signature = keypair.privateKey.sign(
G2point.hashToG2(messageHash, domain)
);
const pubKey = keypair.publicKey.toBytesCompressed();
bls.verify(
pubKey,
messageHash,
signature.toBytesCompressed(),
domain
);
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expect("0x" + pubKey.toString("hex")).to.be.equal(keypair.publicKey.toHexString());
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});
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it("should fail verify empty signature", () => {
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const keypair = Keypair.generate();
const messageHash2 = Buffer.from(sha256.arrayBuffer("Test message2"));
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const domain = Buffer.from("01", "hex");
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const signature = Buffer.alloc(96);
const result = bls.verify(
keypair.publicKey.toBytesCompressed(),
messageHash2,
signature,
domain
);
expect(result).to.be.false;
});
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it("should fail verify signature of different message", () => {
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const keypair = Keypair.generate();
const messageHash = Buffer.from(sha256.arrayBuffer("Test message"));
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const messageHash2 = Buffer.from(sha256.arrayBuffer("Test message2"));
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const domain = Buffer.from("01", "hex");
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const signature = keypair.privateKey.sign(
G2point.hashToG2(messageHash, domain)
);
const result = bls.verify(
keypair.publicKey.toBytesCompressed(),
messageHash2,
signature.toBytesCompressed(),
domain
);
expect(result).to.be.false;
});
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it("should fail verify signature of different domain", () => {
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const keypair = Keypair.generate();
const messageHash = Buffer.from(sha256.arrayBuffer("Test message"));
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const domain = Buffer.from("01", "hex");
const domain2 = Buffer.from("02", "hex");
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const signature = keypair.privateKey.sign(
G2point.hashToG2(messageHash, domain)
);
const result = bls.verify(
keypair.publicKey.toBytesCompressed(),
messageHash,
signature.toBytesCompressed(),
domain2
);
expect(result).to.be.false;
});
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it("should fail verify signature signed by different key", () => {
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const keypair = Keypair.generate();
const keypair2 = Keypair.generate();
const messageHash = Buffer.from(sha256.arrayBuffer("Test message"));
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const domain = Buffer.from("01", "hex");
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const signature = keypair.privateKey.sign(
G2point.hashToG2(messageHash, domain)
);
const result = bls.verify(
keypair2.publicKey.toBytesCompressed(),
messageHash,
signature.toBytesCompressed(),
domain
);
expect(result).to.be.false;
});
});
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describe("verify multiple", function() {
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it("should verify aggregated signatures", function () {
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this.timeout(5000);
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const domain = Buffer.alloc(8, 0);
const keypair1 = Keypair.generate();
const keypair2 = Keypair.generate();
const keypair3 = Keypair.generate();
const keypair4 = Keypair.generate();
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const message1 = Buffer.from("Test1", "utf-8");
const message2 = Buffer.from("Test2", "utf-8");
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const signature1 = keypair1.privateKey.signMessage(message1, domain);
const signature2 = keypair2.privateKey.signMessage(message1, domain);
const signature3 = keypair3.privateKey.signMessage(message2, domain);
const signature4 = keypair4.privateKey.signMessage(message2, domain);
const aggregatePubKey12 = bls.aggregatePubkeys([
keypair1.publicKey.toBytesCompressed(),
keypair2.publicKey.toBytesCompressed(),
]);
const aggregatePubKey34 = bls.aggregatePubkeys([
keypair3.publicKey.toBytesCompressed(),
keypair4.publicKey.toBytesCompressed(),
]);
const aggregateSignature = bls.aggregateSignatures([
signature1.toBytesCompressed(),
signature2.toBytesCompressed(),
signature3.toBytesCompressed(),
signature4.toBytesCompressed(),
]);
const result = bls.verifyMultiple(
[aggregatePubKey12, aggregatePubKey34],
[message1, message2],
aggregateSignature,
domain
);
expect(result).to.be.true;
});
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it("should verify aggregated signatures - same message", function () {
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this.timeout(5000);
const domain = Buffer.alloc(8, 0);
const keypair1 = Keypair.generate();
const keypair2 = Keypair.generate();
const keypair3 = Keypair.generate();
const keypair4 = Keypair.generate();
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const message = Buffer.from("Test1", "utf-8");
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const signature1 = keypair1.privateKey.signMessage(message, domain);
const signature2 = keypair2.privateKey.signMessage(message, domain);
const signature3 = keypair3.privateKey.signMessage(message, domain);
const signature4 = keypair4.privateKey.signMessage(message, domain);
const aggregateSignature = bls.aggregateSignatures([
signature1.toBytesCompressed(),
signature2.toBytesCompressed(),
signature3.toBytesCompressed(),
signature4.toBytesCompressed(),
]);
const result = bls.verifyMultiple(
[
keypair1.publicKey.toBytesCompressed(),
keypair2.publicKey.toBytesCompressed(),
keypair3.publicKey.toBytesCompressed(),
keypair4.publicKey.toBytesCompressed()
],
[message, message, message, message],
aggregateSignature,
domain
);
expect(result).to.be.true;
});
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it("should fail to verify aggregated signatures - swapped messages", function () {
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this.timeout(5000);
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const domain = Buffer.alloc(8, 0);
const keypair1 = Keypair.generate();
const keypair2 = Keypair.generate();
const keypair3 = Keypair.generate();
const keypair4 = Keypair.generate();
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const message1 = Buffer.from("Test1", "utf-8");
const message2 = Buffer.from("Test2", "utf-8");
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const signature1 = keypair1.privateKey.signMessage(message1, domain);
const signature2 = keypair2.privateKey.signMessage(message1, domain);
const signature3 = keypair3.privateKey.signMessage(message2, domain);
const signature4 = keypair4.privateKey.signMessage(message2, domain);
const aggregatePubKey12 = bls.aggregatePubkeys([
keypair1.publicKey.toBytesCompressed(),
keypair2.publicKey.toBytesCompressed(),
]);
const aggregatePubKey34 = bls.aggregatePubkeys([
keypair3.publicKey.toBytesCompressed(),
keypair4.publicKey.toBytesCompressed(),
]);
const aggregateSignature = bls.aggregateSignatures([
signature1.toBytesCompressed(),
signature2.toBytesCompressed(),
signature3.toBytesCompressed(),
signature4.toBytesCompressed(),
]);
const result = bls.verifyMultiple(
[aggregatePubKey12, aggregatePubKey34],
[message2, message1],
aggregateSignature,
domain
);
expect(result).to.be.false;
});
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it("should fail to verify aggregated signatures - different pubkeys and messsages", () => {
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const domain = Buffer.alloc(8, 0);
const keypair1 = Keypair.generate();
const keypair2 = Keypair.generate();
const keypair3 = Keypair.generate();
const keypair4 = Keypair.generate();
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const message1 = Buffer.from("Test1", "utf-8");
const message2 = Buffer.from("Test2", "utf-8");
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const signature1 = keypair1.privateKey.signMessage(message1, domain);
const signature2 = keypair2.privateKey.signMessage(message1, domain);
const signature3 = keypair3.privateKey.signMessage(message2, domain);
const signature4 = keypair4.privateKey.signMessage(message2, domain);
const aggregatePubKey12 = bls.aggregatePubkeys([
keypair1.publicKey.toBytesCompressed(),
keypair2.publicKey.toBytesCompressed(),
]);
const aggregateSignature = bls.aggregateSignatures([
signature1.toBytesCompressed(),
signature2.toBytesCompressed(),
signature3.toBytesCompressed(),
signature4.toBytesCompressed(),
]);
const result = bls.verifyMultiple(
[aggregatePubKey12],
[message2, message1],
aggregateSignature,
domain
);
expect(result).to.be.false;
});
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it("should fail to verify aggregated signatures - different domain", () => {
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const domain = Buffer.alloc(8, 0);
const domain2 = Buffer.alloc(8, 1);
const keypair1 = Keypair.generate();
const keypair2 = Keypair.generate();
const keypair3 = Keypair.generate();
const keypair4 = Keypair.generate();
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const message1 = Buffer.from("Test1", "utf-8");
const message2 = Buffer.from("Test2", "utf-8");
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const signature1 = keypair1.privateKey.signMessage(message1, domain);
const signature2 = keypair2.privateKey.signMessage(message1, domain);
const signature3 = keypair3.privateKey.signMessage(message2, domain2);
const signature4 = keypair4.privateKey.signMessage(message2, domain2);
const aggregatePubKey12 = bls.aggregatePubkeys([
keypair1.publicKey.toBytesCompressed(),
keypair2.publicKey.toBytesCompressed(),
]);
const aggregateSignature = bls.aggregateSignatures([
signature1.toBytesCompressed(),
signature2.toBytesCompressed(),
signature3.toBytesCompressed(),
signature4.toBytesCompressed(),
]);
const result = bls.verifyMultiple(
[aggregatePubKey12],
[message2, message1],
aggregateSignature,
domain
);
expect(result).to.be.false;
});
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it("should fail to verify aggregated signatures - no public keys", () => {
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const domain = Buffer.alloc(8, 0);
const signature = Buffer.alloc(96);
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const message1 = Buffer.from("Test1", "utf-8");
const message2 = Buffer.from("Test2", "utf-8");
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const result = bls.verifyMultiple(
[],
[message2, message1],
signature,
domain
);
expect(result).to.be.false;
});
});
});