import { expect, test } from "vitest";
import { ECDSA_sign_bson, ECDSA_verify_bson } from "./ECDSA.js";
import { genKey } from "./ECKey.js";
import { randomBytes } from "./utils.js";
test('basic sign', async () => {
	const [signKey, verifyKey] = await genKey();

	const misVerifyKey = Buffer.alloc(verifyKey.length);
	verifyKey.copy(misVerifyKey);
	misVerifyKey[misVerifyKey.length - 2] ^= 1; //1bit

	const msg = randomBytes(100);
	const misMsg = Buffer.alloc(msg.length);
	msg.copy(misMsg);
	misMsg[1] ^= 1;

	const signature = await ECDSA_sign_bson(signKey, msg);
	expect(signature.length).toEqual(96);

	const misSignature = Buffer.alloc(signature.length);
	signature.copy(misSignature);
	misSignature[misSignature.length - 2] ^= 3;

	const t0P = ECDSA_verify_bson(verifyKey, msg, signature);
	const f1P = ECDSA_verify_bson(misVerifyKey, msg, signature);
	const f2P = ECDSA_verify_bson(verifyKey, misMsg, signature);
	const f3P = ECDSA_verify_bson(verifyKey, msg, misSignature);

	expect(await t0P).toEqual(true);
	expect(await f1P).toEqual(false);
	expect(await f2P).toEqual(false);
	expect(await f3P).toEqual(false);
})