fluencelabs/js-libp2p-noise
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Replace bcrypto with standalone libraries

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This commit is contained in:
Matija Petrunic
2020-04-06 17:33:52 +02:00
parent 9bf6c2e85d
commit bdc39e3ba5
4 changed files with 25 additions and 17 deletions
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13
src/handshakes/abstract-handshake.ts
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@ -1,5 +1,7 @@
import {Buffer} from "buffer";
import { AEAD, x25519, SHA256 } from 'bcrypto';
import hash from 'hash.js';
import {box} from 'tweetnacl';
import {AEAD} from 'aead-js';
import {bytes, bytes32, uint32} from "../@types/basic";
import {CipherState, MessageBuffer, SymmetricState} from "../@types/handshake";
@ -104,10 +106,7 @@ export abstract class AbstractHandshake {
protected dh(privateKey: bytes32, publicKey: bytes32): bytes32 {
try {
const derived = x25519.derive(publicKey, privateKey);
const result = Buffer.alloc(32);
derived.copy(result);
return result;
return Buffer.from(box.before(publicKey, privateKey))
} catch (e) {
logger(e.message);
return Buffer.alloc(32);
@ -119,7 +118,9 @@ export abstract class AbstractHandshake {
}
protected getHash(a: bytes, b: bytes): bytes32 {
return SHA256.digest(Buffer.from([...a, ...b]));
return Buffer.from(
hash.sha256().update(Buffer.from([...a, ...b])).digest('hex')
)
}
protected mixKey(ss: SymmetricState, ikm: bytes32): void {

4
src/noise.ts
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@ -1,4 +1,4 @@
import {x25519} from 'bcrypto';
import {box} from 'tweetnacl';
import {Buffer} from "buffer";
import Wrap from 'it-pb-rpc';
import DuplexPair from 'it-pair/duplex';
@ -49,7 +49,7 @@ export class Noise implements INoiseConnection {
this.useNoisePipes = false;
if (staticNoiseKey) {
const publicKey = x25519.publicKeyCreate(staticNoiseKey);
const publicKey = Buffer.from(box.keyPair.fromSecretKey(staticNoiseKey)['publicKey']);
this.staticKeys = {
privateKey: staticNoiseKey,
publicKey,

18
src/utils.ts
View File

@ -1,4 +1,5 @@
import {HKDF, SHA256, x25519} from 'bcrypto';
import hkdf from 'futoin-hkdf';
import {box} from 'tweetnacl';
import {Buffer} from "buffer";
import PeerId from "peer-id";
import * as crypto from 'libp2p-crypto';
@ -10,8 +11,9 @@ import {pb} from "./proto/payload";
const NoiseHandshakePayloadProto = pb.NoiseHandshakePayload;
export function generateKeypair(): KeyPair {
const privateKey = x25519.privateKeyGenerate();
const publicKey = x25519.publicKeyCreate(privateKey);
const keyPair = box.keyPair()
const publicKey = Buffer.from(keyPair['publicKey'])
const privateKey = Buffer.from(keyPair['secretKey'])
return {
publicKey,
@ -99,9 +101,7 @@ export async function verifySignedPayload(
}
export function getHkdf(ck: bytes32, ikm: bytes): Hkdf {
const info = Buffer.alloc(0);
const prk = HKDF.extract(SHA256, ikm, ck);
const okm = HKDF.expand(SHA256, prk, info, 96);
const okm = hkdf(ikm, 96, {salt: ck, hash: 'SHA-256'})
const k1 = okm.slice(0, 32);
const k2 = okm.slice(32, 64);
@ -111,5 +111,9 @@ export function getHkdf(ck: bytes32, ikm: bytes): Hkdf {
}
export function isValidPublicKey(pk: bytes): boolean {
return x25519.publicKeyVerify(pk.slice(0, 32));
if(pk.length !== 32 || pk.compare(Buffer.alloc(32))){
return false;
}
return true;
}