use built in peer id types

src/@types/libp2p.ts

@@ -1,23 +1,12 @@
 import { bytes, bytes32 } from "./basic";
 import { Duplex } from "it-pair";
+import PeerId from "peer-id";
 
 export type KeyPair = {
   publicKey: bytes32;
   privateKey: bytes32;
 }
 
-export type PeerId = {
-  id: bytes;
-  privKey: {
-    marshal(): bytes;
-  };
-  pubKey: {
-    marshal(): bytes;
-  };
-  marshalPubKey(): bytes;
-  marshalPrivKey(): bytes;
-};
-
 export interface INoiseConnection {
   remoteEarlyData?(): bytes;
   secureOutbound(localPeer: PeerId, insecure: any, remotePeer: PeerId): Promise<SecureOutbound>;

src/handshake-ik.ts

@@ -2,13 +2,14 @@ import {WrappedConnection} from "./noise";
 import {IK} from "./handshakes/ik";
 import {NoiseSession} from "./@types/handshake";
 import {bytes, bytes32} from "./@types/basic";
-import {KeyPair, PeerId} from "./@types/libp2p";
+import {KeyPair} from "./@types/libp2p";
 import {IHandshake} from "./@types/handshake-interface";
 import {Buffer} from "buffer";
 import {decode0, decode1, encode0, encode1} from "./encoder";
 import {verifySignedPayload} from "./utils";
 import {FailedIKError} from "./errors";
 import {logger} from "./logger";
+import PeerId from "peer-id";
 
 export class IKHandshake implements IHandshake {
   public isInitiator: boolean;

src/handshake-xx-fallback.ts

@@ -1,15 +1,13 @@
 import {Buffer} from "buffer";
-
 import {XXHandshake} from "./handshake-xx";
 import {XX} from "./handshakes/xx";
-import { KeyPair, PeerId } from "./@types/libp2p";
+import {KeyPair} from "./@types/libp2p";
 import {bytes, bytes32} from "./@types/basic";
-import {
-  verifySignedPayload,
-} from "./utils";
+import {verifySignedPayload,} from "./utils";
 import {logger} from "./logger";
 import {WrappedConnection} from "./noise";
-import {decode0, decode1, encode1} from "./encoder";
+import {decode0, decode1} from "./encoder";
+import PeerId from "peer-id";
 
 export class XXFallbackHandshake extends XXHandshake {
   private ephemeralKeys?: KeyPair;

src/handshake-xx.ts

@@ -1,7 +1,7 @@
 import { Buffer } from "buffer";
 
 import { XX } from "./handshakes/xx";
-import { KeyPair, PeerId } from "./@types/libp2p";
+import { KeyPair } from "./@types/libp2p";
 import { bytes, bytes32 } from "./@types/basic";
 import { NoiseSession } from "./@types/handshake";
 import {IHandshake} from "./@types/handshake-interface";
@@ -11,6 +11,7 @@ import {
 import { logger } from "./logger";
 import { decode0, decode1, encode0, encode1 } from "./encoder";
 import { WrappedConnection } from "./noise";
+import PeerId from "peer-id";
 
 export class XXHandshake implements IHandshake {
   public isInitiator: boolean;

src/keycache.ts

@@ -1,5 +1,5 @@
-import {PeerId} from "./@types/libp2p";
 import {bytes, bytes32} from "./@types/basic";
+import PeerId from "peer-id";
 
 /**
  * Storage for static keys of previously connected peers.

src/noise.ts

@@ -13,11 +13,12 @@ import { generateKeypair, getPayload } from "./utils";
 import { uint16BEDecode, uint16BEEncode } from "./encoder";
 import { decryptStream, encryptStream } from "./crypto";
 import { bytes } from "./@types/basic";
-import { INoiseConnection, PeerId, KeyPair, SecureOutbound } from "./@types/libp2p";
+import { INoiseConnection, KeyPair, SecureOutbound } from "./@types/libp2p";
 import { Duplex } from "./@types/it-pair";
 import {IHandshake} from "./@types/handshake-interface";
 import {KeyCache} from "./keycache";
 import {logger} from "./logger";
+import PeerId from "peer-id";
 
 export type WrappedConnection = ReturnType<typeof Wrap>;
 
@@ -36,12 +37,18 @@ export class Noise implements INoiseConnection {
   private readonly earlyData?: bytes;
   private useNoisePipes: boolean;
 
+  /**
+   *
+   * @param staticNoiseKey
+   * @param earlyData
+   * @param useNoisePipes
+   */
   constructor(staticNoiseKey?: bytes, earlyData?: bytes, useNoisePipes = true) {
     this.earlyData = earlyData || Buffer.alloc(0);
     this.useNoisePipes = useNoisePipes;
 
     if (staticNoiseKey) {
-      const publicKey = x25519.publicKeyCreate(staticNoiseKey); // TODO: verify this
+      const publicKey = x25519.publicKeyCreate(staticNoiseKey);
       this.staticKeys = {
         privateKey: staticNoiseKey,
         publicKey,
@@ -100,10 +107,7 @@ export class Noise implements INoiseConnection {
   /**
    * If Noise pipes supported, tries IK handshake first with XX as fallback if it fails.
    * If noise pipes disabled or remote peer static key is unknown, use XX.
-   * @param connection
-   * @param isInitiator
-   * @param libp2pPublicKey
-   * @param remotePeer
+   * @param params
    */
   private async performHandshake(params: HandshakeParams): Promise<IHandshake> {
     const payload = await getPayload(params.localPeer, this.staticKeys.publicKey, this.earlyData);