fluencelabs/js-libp2p-noise
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Write functions for verification

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This commit is contained in:
morrigan
2019-12-02 12:53:00 +01:00
parent fc71a22a6c
commit 7b03a3df3b
3 changed files with 24 additions and 4 deletions
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16
src/utils.ts
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@ -2,6 +2,7 @@ import { x25519, ed25519 } from 'bcrypto';
import protobuf from "protobufjs";
import { Buffer } from "buffer";
import debug from "debug";
import PeerId from "peer-id";
import { KeyPair } from "./@types/libp2p";
import { bytes } from "./@types/basic";
@ -82,6 +83,21 @@ export function decodeMessageBuffer(message: bytes): MessageBuffer {
}
}
export async function verifyPeerId(peerId: bytes, publicKey: bytes) {
const generatedPeerId = await PeerId.createFromPubKey(publicKey);
if (!generatedPeerId.equals(peerId)) {
Promise.reject("Peer ID doesn't match libp2p public key.");
}
}
export function verifySignedPayload(noiseStaticKey: bytes, plaintext: bytes, libp2pPublicKey: bytes) {
const generatedPayload = getHandshakePayload(noiseStaticKey);
if (!ed25519.verify(generatedPayload, signature, libp2pPublicKey)) {
throw new Error("Static key doesn't match to peer that signed payload!");
}
}
export const int16BEEncode = (value, target, offset) => {
target = target || Buffer.allocUnsafe(2);
return target.writeInt16BE(value, offset);