chore: release version v0.13.4

* feat: support Peer ID represented as CID

This change adds two functions:

- createFromCID accepts CID as String|CID|Buffer
  and creates PeerId from the multihash value inside of it
- toCIDString serializes PeerId multihash into a CIDv1 in Base32,
  as agreed in https://github.com/libp2p/specs/pull/209

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

* refactor: rename toCIDString to toString

CIDv1 is self describing, and toString was not defined.
Makes sense to use generic toString in this case.

This change also:
- remembers string with CID, so it is lazily generated only once
- switches createFromB58String to createFromCID (b58 is CIDv0),
  making it easier to migrate existing codebases.

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

* docs: comment tests

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

* feat: validate CID multicodec

- require CID with 'libp2p-key' (CIDv1) or 'dag-pb' (CIDv0 converted to CIDv1)
- delegate CID validation to CID constructor

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

.gitignore

@@ -1,7 +1,15 @@
+docs
+**/node_modules/
+**/*.log
+test/repo-tests*
+**/bundle.js
+
 # Logs
 logs
 *.log
 
+coverage
+
 # Runtime data
 pids
 *.pid
@@ -19,12 +27,19 @@ coverage
 # node-waf configuration
 .lock-wscript
 
-# Compiled binary addons (http://nodejs.org/api/addons.html)
+build
-build/Release
 
 # Dependency directory
 # https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
 node_modules
 
-dist
 docs
+lib
+dist
+test/test-data/go-ipfs-repo/LOCK
+test/test-data/go-ipfs-repo/LOG
+test/test-data/go-ipfs-repo/LOG.old
+
+# while testing npm5
+package-lock.json
+yarn.lock

.npmignore

@@ -1,28 +0,0 @@
-# Logs
-logs
-*.log
-
-# Runtime data
-pids
-*.pid
-*.seed
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Compiled binary addons (http://nodejs.org/api/addons.html)
-build/Release
-
-# Optional npm cache directory
-.npm
-
-# Optional REPL history
-.node_repl_history
-
-test

.travis.yml

@@ -1,37 +1,45 @@
-sudo: false
 language: node_js
+cache: npm
+stages:
+  - check
+  - test
+  - cov
 
-matrix:
+node_js:
+  - '10'
+
+os:
+  - linux
+  - osx
+
+script: npx nyc -s npm run test:node -- --bail
+after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
+
+jobs:
   include:
-  - node_js: 4
+    - os: windows
-    env: CXX=g++-4.8
+      cache: false
-  - node_js: 6
-    env:
-      - SAUCE=true
-      - CXX=g++-4.8
-  - node_js: stable
-    env: CXX=g++-4.8
-
-# Make sure we have new NPM.
-before_install:
-  - npm install -g npm
 
+    - stage: check
       script:
+        - npx aegir dep-check
         - npm run lint
-  - npm test
-  - npm run coverage
 
-before_script:
+    - stage: test
-  - export DISPLAY=:99.0
+      name: chrome
-  - sh -e /etc/init.d/xvfb start
+      addons:
-
+        chrome: stable
-after_success:
+      script:
-  - npm run coverage-publish
+        - npx aegir test -t browser
+        - npx aegir test -t webworker
 
+    - stage: test
+      name: firefox
       addons:
         firefox: latest
-  apt:
+      script:
-    sources:
+        - npx aegir test -t browser -- --browsers FirefoxHeadless
-      - ubuntu-toolchain-r-test
+        - npx aegir test -t webworker -- --browsers FirefoxHeadless
-    packages:
+
-      - g++-4.8
+notifications:
+  email: false

CHANGELOG.md

@@ -0,0 +1,341 @@
+<a name="0.13.4"></a>
+## [0.13.4](https://github.com/libp2p/js-peer-id/compare/v0.13.3...v0.13.4) (2019-11-04)
+
+
+### Bug Fixes
+
+* bang in bin.js ([#106](https://github.com/libp2p/js-peer-id/issues/106)) ([11d4ec1](https://github.com/libp2p/js-peer-id/commit/11d4ec1))
+
+
+### Features
+
+* support Peer ID represented as CID ([#105](https://github.com/libp2p/js-peer-id/issues/105)) ([544ca7d](https://github.com/libp2p/js-peer-id/commit/544ca7d))
+
+
+
+<a name="0.13.3"></a>
+## [0.13.3](https://github.com/libp2p/js-peer-id/compare/v0.13.2...v0.13.3) (2019-09-25)
+
+
+### Features
+
+* allow nested PeerIds to support pubKey function when using identity encoding ([#101](https://github.com/libp2p/js-peer-id/issues/101)) ([f39fb24](https://github.com/libp2p/js-peer-id/commit/f39fb24))
+
+
+
+<a name="0.13.2"></a>
+## [0.13.2](https://github.com/libp2p/js-peer-id/compare/v0.13.1...v0.13.2) (2019-07-12)
+
+
+### Features
+
+* add compact protobuf format ([#76](https://github.com/libp2p/js-peer-id/issues/76)) ([7686418](https://github.com/libp2p/js-peer-id/commit/7686418))
+
+
+
+<a name="0.13.1"></a>
+## [0.13.1](https://github.com/libp2p/js-peer-id/compare/v0.13.0...v0.13.1) (2019-07-11)
+
+
+### Features
+
+* **peerid:** support creating from secp256k1; harmonize algo with Go ([#95](https://github.com/libp2p/js-peer-id/issues/95)) ([17440a3](https://github.com/libp2p/js-peer-id/commit/17440a3))
+
+
+
+<a name="0.13.0"></a>
+# [0.13.0](https://github.com/libp2p/js-peer-id/compare/v0.12.2...v0.13.0) (2019-07-11)
+
+
+### Features
+
+* async await ([#87](https://github.com/libp2p/js-peer-id/issues/87)) ([c3463c7](https://github.com/libp2p/js-peer-id/commit/c3463c7))
+
+
+### BREAKING CHANGES
+
+* API refactored to use async/await
+
+
+
+<a name="0.12.2"></a>
+## [0.12.2](https://github.com/libp2p/js-peer-id/compare/v0.12.1...v0.12.2) (2019-01-09)
+
+
+### Bug Fixes
+
+* clean repo and bundle size reduction ([cd20993](https://github.com/libp2p/js-peer-id/commit/cd20993))
+
+
+
+<a name="0.12.1"></a>
+## [0.12.1](https://github.com/libp2p/js-peer-id/compare/v0.12.0...v0.12.1) (2019-01-03)
+
+
+
+<a name="0.12.0"></a>
+# [0.12.0](https://github.com/libp2p/js-peer-id/compare/v0.11.0...v0.12.0) (2018-10-18)
+
+
+### Bug Fixes
+
+* add peerIdWithIs to the API functions using the instance ([2e5e666](https://github.com/libp2p/js-peer-id/commit/2e5e666))
+
+
+### Features
+
+* add class-is module ([6513a02](https://github.com/libp2p/js-peer-id/commit/6513a02))
+
+
+
+<a name="0.11.0"></a>
+# [0.11.0](https://github.com/libp2p/js-peer-id/compare/v0.10.7...v0.11.0) (2018-07-02)
+
+
+### Features
+
+* change toPrint output to match go implementation ([e8ab1b9](https://github.com/libp2p/js-peer-id/commit/e8ab1b9))
+
+
+
+<a name="0.10.7"></a>
+## [0.10.7](https://github.com/libp2p/js-peer-id/compare/v0.10.6...v0.10.7) (2018-04-05)
+
+
+
+<a name="0.10.6"></a>
+## [0.10.6](https://github.com/libp2p/js-peer-id/compare/v0.10.5...v0.10.6) (2018-02-12)
+
+
+
+<a name="0.10.5"></a>
+## [0.10.5](https://github.com/libp2p/js-peer-id/compare/v0.10.4...v0.10.5) (2018-01-28)
+
+
+
+<a name="0.10.4"></a>
+## [0.10.4](https://github.com/libp2p/js-peer-id/compare/v0.10.3...v0.10.4) (2017-12-20)
+
+
+### Bug Fixes
+
+* update dependencies ([#73](https://github.com/libp2p/js-peer-id/issues/73)) ([8b9a134](https://github.com/libp2p/js-peer-id/commit/8b9a134))
+
+
+
+<a name="0.10.3"></a>
+## [0.10.3](https://github.com/libp2p/js-peer-id/compare/v0.10.2...v0.10.3) (2017-12-01)
+
+
+### Bug Fixes
+
+* catch error when unmarshaling instead of crashing ([#72](https://github.com/libp2p/js-peer-id/issues/72)) ([156911e](https://github.com/libp2p/js-peer-id/commit/156911e))
+
+
+
+<a name="0.10.2"></a>
+## [0.10.2](https://github.com/libp2p/js-peer-id/compare/v0.10.1...v0.10.2) (2017-10-12)
+
+
+### Bug Fixes
+
+* Always add public key to constructor if possible, Fix for undefined pubKey in remote peers ([#68](https://github.com/libp2p/js-peer-id/issues/68)) ([3abdcda](https://github.com/libp2p/js-peer-id/commit/3abdcda))
+
+
+
+<a name="0.10.1"></a>
+## [0.10.1](https://github.com/libp2p/js-peer-id/compare/v0.10.0...v0.10.1) (2017-09-07)
+
+
+### Features
+
+* **deps:** update aegir and libp2p-crypto ([#67](https://github.com/libp2p/js-peer-id/issues/67)) ([d7088d6](https://github.com/libp2p/js-peer-id/commit/d7088d6))
+
+
+
+<a name="0.10.0"></a>
+# [0.10.0](https://github.com/libp2p/js-peer-id/compare/v0.9.0...v0.10.0) (2017-09-03)
+
+
+### Features
+
+* p2p addrs situation ([#66](https://github.com/libp2p/js-peer-id/issues/66)) ([63428fa](https://github.com/libp2p/js-peer-id/commit/63428fa))
+
+
+
+<a name="0.9.0"></a>
+# [0.9.0](https://github.com/libp2p/js-peer-id/compare/v0.8.8...v0.9.0) (2017-07-22)
+
+
+### Features
+
+* use next libp2p-crypto ([#64](https://github.com/libp2p/js-peer-id/issues/64)) ([442df13](https://github.com/libp2p/js-peer-id/commit/442df13))
+
+
+
+<a name="0.8.8"></a>
+## [0.8.8](https://github.com/libp2p/js-peer-id/compare/v0.8.7...v0.8.8) (2017-07-21)
+
+
+
+<a name="0.8.7"></a>
+## [0.8.7](https://github.com/libp2p/js-peer-id/compare/v0.8.6...v0.8.7) (2017-04-03)
+
+
+### Features
+
+* set privKey pubKey ([ac27907](https://github.com/libp2p/js-peer-id/commit/ac27907))
+
+
+
+<a name="0.8.6"></a>
+## [0.8.6](https://github.com/libp2p/js-peer-id/compare/v0.8.5...v0.8.6) (2017-03-30)
+
+
+### Features
+
+* isEqual ([3f4f670](https://github.com/libp2p/js-peer-id/commit/3f4f670))
+
+
+
+<a name="0.8.5"></a>
+## [0.8.5](https://github.com/libp2p/js-peer-id/compare/v0.8.4...v0.8.5) (2017-03-27)
+
+
+### Bug Fixes
+
+* avoid using constructor.name ([a3fe1a2](https://github.com/libp2p/js-peer-id/commit/a3fe1a2))
+
+
+### Features
+
+* isPeerId ([0acc572](https://github.com/libp2p/js-peer-id/commit/0acc572))
+
+
+
+<a name="0.8.4"></a>
+## [0.8.4](https://github.com/libp2p/js-peer-id/compare/v0.8.2...v0.8.4) (2017-03-16)
+
+
+
+<a name="0.8.2"></a>
+## [0.8.2](https://github.com/libp2p/js-peer-id/compare/v0.8.1...v0.8.2) (2017-02-09)
+
+
+
+<a name="0.8.1"></a>
+## [0.8.1](https://github.com/libp2p/js-peer-id/compare/v0.8.0...v0.8.1) (2016-12-18)
+
+
+### Features
+
+* cache b58 id ([bebb0a7](https://github.com/libp2p/js-peer-id/commit/bebb0a7))
+* create b58 string on creation and throw on id mutation ([78d96d0](https://github.com/libp2p/js-peer-id/commit/78d96d0))
+
+
+
+<a name="0.8.0"></a>
+# [0.8.0](https://github.com/libp2p/js-peer-id/compare/v0.7.0...v0.8.0) (2016-11-03)
+
+
+* Async Crypto Endeavour (#33) ([31701e2](https://github.com/libp2p/js-peer-id/commit/31701e2))
+
+
+### BREAKING CHANGES
+
+* This changes the interface of .create, .createFromPrivKey,
+.createFromPubKey, .createFromJSON
+
+
+
+<a name="0.7.0"></a>
+# [0.7.0](https://github.com/libp2p/js-peer-id/compare/v0.6.7...v0.7.0) (2016-05-26)
+
+
+### Bug Fixes
+
+* code review and docs and go interop ([58f1933](https://github.com/libp2p/js-peer-id/commit/58f1933))
+* use new version of libp2p-crypto ([ab55046](https://github.com/libp2p/js-peer-id/commit/ab55046))
+
+
+
+<a name="0.6.7"></a>
+## [0.6.7](https://github.com/libp2p/js-peer-id/compare/v0.6.6...v0.6.7) (2016-05-23)
+
+
+
+<a name="0.6.6"></a>
+## [0.6.6](https://github.com/libp2p/js-peer-id/compare/v0.6.5...v0.6.6) (2016-04-12)
+
+
+
+<a name="0.6.5"></a>
+## [0.6.5](https://github.com/libp2p/js-peer-id/compare/v0.6.1...v0.6.5) (2016-04-12)
+
+
+
+<a name="0.6.1"></a>
+## [0.6.1](https://github.com/libp2p/js-peer-id/compare/v0.6.0...v0.6.1) (2016-03-15)
+
+
+
+<a name="0.6.0"></a>
+# [0.6.0](https://github.com/libp2p/js-peer-id/compare/v0.5.3...v0.6.0) (2016-03-10)
+
+
+
+<a name="0.5.3"></a>
+## [0.5.3](https://github.com/libp2p/js-peer-id/compare/v0.5.1...v0.5.3) (2016-03-05)
+
+
+
+<a name="0.5.1"></a>
+## [0.5.1](https://github.com/libp2p/js-peer-id/compare/v0.5.0...v0.5.1) (2016-03-03)
+
+
+
+<a name="0.5.0"></a>
+# [0.5.0](https://github.com/libp2p/js-peer-id/compare/v0.4.0...v0.5.0) (2016-02-14)
+
+
+
+<a name="0.4.0"></a>
+# [0.4.0](https://github.com/libp2p/js-peer-id/compare/v0.3.4...v0.4.0) (2015-11-05)
+
+
+
+<a name="0.3.4"></a>
+## [0.3.4](https://github.com/libp2p/js-peer-id/compare/v0.3.3...v0.3.4) (2015-10-28)
+
+
+
+<a name="0.3.3"></a>
+## [0.3.3](https://github.com/libp2p/js-peer-id/compare/v0.3.2...v0.3.3) (2015-09-15)
+
+
+
+<a name="0.3.2"></a>
+## [0.3.2](https://github.com/libp2p/js-peer-id/compare/v0.3.1...v0.3.2) (2015-09-14)
+
+
+
+<a name="0.3.1"></a>
+## [0.3.1](https://github.com/libp2p/js-peer-id/compare/v0.3.0...v0.3.1) (2015-08-25)
+
+
+
+<a name="0.3.0"></a>
+# [0.3.0](https://github.com/libp2p/js-peer-id/compare/v0.2.0...v0.3.0) (2015-07-19)
+
+
+
+<a name="0.2.0"></a>
+# [0.2.0](https://github.com/libp2p/js-peer-id/compare/v0.1.0...v0.2.0) (2015-07-17)
+
+
+
+<a name="0.1.0"></a>
+# 0.1.0 (2015-07-08)
+
+
+

README.md

@@ -1,18 +1,22 @@
 # peer-id
 
-[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://ipn.io)
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai)
-[![](https://img.shields.io/badge/freenode-%23ipfs-blue.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23ipfs)
+[![](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
-[![Build Status](https://travis-ci.org/libp2p/js-peer-id.svg?style=flat-square)](https://travis-ci.org/libp2p/js-peer-id)
+[![](https://img.shields.io/badge/freenode-%23libp2p-yellow.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23libp2p)
-[![Coverage Status](https://coveralls.io/repos/github/libp2p/js-peer-id/badge.svg?branch=master)](https://coveralls.io/github/libp2p/js-peer-id?branch=master)
+[![Discourse posts](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg)](https://discuss.libp2p.io)
+[![](https://img.shields.io/codecov/c/github/libp2p/js-peer-id.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-peer-id)
+[![](https://img.shields.io/travis/libp2p/js-peer-id.svg?style=flat-square)](https://travis-ci.com/libp2p/js-peer-id)
 [![Dependency Status](https://david-dm.org/libp2p/js-peer-id.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-id)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)
-![](https://img.shields.io/badge/npm-%3E%3D3.0.0-orange.svg?style=flat-square)
-![](https://img.shields.io/badge/Node.js-%3E%3D4.0.0-orange.svg?style=flat-square)
-
-[![Sauce Test Status](https://saucelabs.com/browser-matrix/ipfs-js-peer-id.svg)](https://saucelabs.com/u/ipfs-js-peer-id)
 
 > [IPFS](https://github.com/ipfs/ipfs) Peer ID implementation in JavaScript.
 
+## Lead Maintainer
+
+[Vasco Santos](https://github.com/vasco-santos)
+
+## Table of Contents
+
 - [Description](#description)
 - [Example](#example)
 - [Installation](#installation)
@@ -22,30 +26,44 @@
   - [Browser: Browserify, Webpack, other bundlers](#browser-browserify-webpack-other-bundlers)
   - [Browser: `<script>` Tag](#browser-script-tag)
 - [API](#api)
+  - [Create](#create)
+    - [`new PeerId(id[, privKey, pubKey])`](#new-peeridid-privkey-pubkey)
+    - [`create([opts])`](#createopts)
+  - [Import](#import)
+    - [`createFromHexString(str)`](#createfromhexstringstr)
+    - [`createFromBytes(buf)`](#createfrombytesbuf)
+    - [`createFromCID(cid)`](#createfromcidcid)
+    - [`createFromB58String(str)`](#createfromb58stringstr)
+    - [`createFromPubKey(pubKey)`](#createfrompubkeypubkey)
+    - [`createFromPrivKey(privKey)`](#createfromprivkeyprivkey)
+    - [`createFromJSON(obj)`](#createfromjsonobj)
+  - [Export](#export)
+    - [`toBytes()`](#tobytes)
+    - [`toString()`](#tostring)
+    - [`toB58String()`](#tob58string)
+    - [`toHexString()`](#tohexstring)
+    - [`toJSON()`](#tojson)
+    - [`toPrint()`](#toprint)
 - [License](#license)
 
 # Description
 
 Generate, import, and export PeerIDs, for use with [IPFS](https://github.com/ipfs/ipfs).
 
-*A Peer ID is the SHA-256 [multihash](https://github.com/multiformats/multihash) of a
+A Peer ID is the SHA-256 [multihash](https://github.com/multiformats/multihash) of a public key.
-public key.*
 
-*The public key is a base64 encoded string of a protobuf containing an RSA DER
+The public key is a base64 encoded string of a protobuf containing an RSA DER buffer. This uses a node buffer to pass the base64 encoded public key protobuf to the multihash for ID generation.
-buffer. This uses a node buffer to pass the base64 encoded public key protobuf
-to the multihash for ID generation.*
 
 # Example
 
-```js
+```JavaScript
-var PeerId = require('peer-id')
+const PeerId = require('peer-id')
 
-PeerId.create({ bits: 1024 }, (err, id) => {
+const id = await PeerId.create({ bits: 1024, keyType: 'rsa' })
-  console.log(JSON.stringify(id.toJSON(), null, 2)
+console.log(JSON.stringify(id.toJSON(), null, 2))
-})
 ```
 
-```
+```bash
 {
   "id": "Qma9T5YraSnpRDZqRR4krcSJabThc8nwZuJV3LercPHufi",
   "privKey": "CAAS4AQwggJcAgEAAoGBAMBgbIqyOL26oV3nGPBYrdpbv..",
@@ -66,7 +84,7 @@ PeerId.create({ bits: 1024 }, (err, id) => {
 ## Node.js
 
 ```js
-var PeerId = require('peer-id')
+const PeerId = require('peer-id')
 ```
 
 ## Browser: Browserify, Webpack, other bundlers
@@ -77,7 +95,7 @@ it and use with your favourite bundler without having to adjust asset management
 process.
 
 ```js
-var PeerId = require('peer-id')
+const PeerId = require('peer-id')
 ```
 
 ## Browser: `<script>` Tag
@@ -93,6 +111,155 @@ the global namespace.
 
 # API
 
+```js
+const PeerId = require('peer-id')
+```
+
+## Create
+
+### `new PeerId(id[, privKey, pubKey])`
+
+- `id: Buffer` - The multihash of the publick key as `Buffer`
+- `privKey: RsaPrivateKey` - The private key
+- `pubKey: RsaPublicKey` - The public key
+
+The key format is detailed in [libp2p-crypto](https://github.com/libp2p/js-libp2p-crypto).
+
+### `create([opts])`
+
+Generates a new Peer ID, complete with public/private keypair.
+
+- `opts: Object`: Default: `{bits: 2048, keyType: 'rsa'}`
+
+Returns `Promise<PeerId>`.
+
+## Import
+
+### `createFromHexString(str)`
+
+Creates a Peer ID from hex string representing the key's multihash.
+
+Returns `PeerId.
+
+### `createFromBytes(buf)`
+
+Creates a Peer ID from a buffer representing the key's multihash.
+
+Returns `PeerId`.
+
+### `createFromCID(cid)`
+
+- `cid: CID|String|Buffer` - The multihash encoded as [CID](https://github.com/ipld/js-cid) (object, `String` or `Buffer`)
+
+Creates a Peer ID from a CID representation of the key's multihash ([RFC 0001](https://github.com/libp2p/specs/blob/master/RFC/0001-text-peerid-cid.md)).
+
+Returns `PeerId`.
+
+### `createFromB58String(str)`
+
+Creates a Peer ID from a Base58 string representing the key's multihash.
+
+Returns `PeerId`.
+
+### `createFromPubKey(pubKey)`
+
+- `publicKey: Buffer`
+
+Creates a Peer ID from a buffer containing a public key.
+
+Returns `Promise<PeerId>`.
+
+### `createFromPrivKey(privKey)`
+
+- `privKey: Buffer`
+
+Creates a Peer ID from a buffer containing a private key.
+
+Returns `Promise<PeerId>`.
+
+### `createFromJSON(obj)`
+
+- `obj.id: String` - The multihash encoded in `base58`
+- `obj.pubKey: String` - The public key in protobuf format, encoded in `base64`
+- `obj.privKey: String` - The private key in protobuf format, encoded in `base64`
+
+Returns `Promise<PeerId>`.
+
+### `createFromProtobuf(buf)`
+
+`buf` is a protocol-buffers encoded PeerId (see `marshal()`)
+
+## Export
+
+### `toHexString()`
+
+Returns the Peer ID's `id` as a hex string.
+
+```
+1220d6243998f2fc56343ad7ed0342ab7886a4eb18d736f1b67d44b37fcc81e0f39f
+```
+
+### `toBytes()`
+
+Returns the Peer ID's `id` as a buffer.
+
+```
+<Buffer 12 20 d6 24 39 98 f2 fc 56 34 3a d7 ed 03 42 ab 78 86 a4 eb 18 d7 36 f1 b6 7d 44 b3 7f cc 81 e0 f3 9f>
+```
+
+
+### `toString()`
+
+Returns the Peer ID's `id` as a self-describing CIDv1 in Base32 ([RFC 0001](https://github.com/libp2p/specs/blob/master/RFC/0001-text-peerid-cid.md))
+
+```
+bafzbeigweq4zr4x4ky2dvv7nanbkw6egutvrrvzw6g3h2rftp7gidyhtt4
+```
+
+### `toB58String()`
+
+Returns the Peer ID's `id` as a base58 string (multihash/CIDv0).
+
+```
+QmckZzdVd72h9QUFuJJpQqhsZqGLwjhh81qSvZ9BhB2FQi
+```
+
+### `toJSON()`
+
+Returns an `obj` of the form
+
+- `obj.id: String` - The multihash encoded in `base58`
+- `obj.pubKey: String` - The public key in protobuf format, encoded in 'base64'
+- `obj.privKey: String` - The private key in protobuf format, encoded in 'base 64'
+
+### `marshal(excludePrivateKey)`
+
+Returns a protocol-buffers encoded version of the id, public key and, if `excludePrivateKey` is not set, the private key.
+
+### `marshalPubKey()`
+
+Returns a protobuf of just the public key, compatible with `libp2p-crypto` (unlike `marshal` above).
+
+For example:
+```js
+const crypto = require('libp2p-crypto')
+
+PeerId.create({ bits: 256, keyType: 'ed25519' }).then( pid => {
+  let pk = crypto.keys.unmarshalPublicKey(pid.marshalPubKey())
+  // your code here
+}
+```
+
+### `toPrint()`
+
+Returns the Peer ID as a printable string without the `Qm` prefix.
+
+Example: `<peer.ID xxxxxx>`
+
+### `isEqual(id)`
+
+- `id` can be a PeerId or a Buffer containing the id
+
 # License
 
 MIT

circle.yml

@@ -1,12 +0,0 @@
-machine:
-  node:
-    version: stable
-
-dependencies:
-  pre:
-    - google-chrome --version
-    - wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
-    - sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
-    - sudo apt-get update
-    - sudo apt-get --only-upgrade install google-chrome-stable
-    - google-chrome --version

documentation.yml

@@ -1,5 +0,0 @@
-toc:
-  - name: Introduction
-    file: intro.md
-  - PeerId
-  - PeerIdJson

intro.md

@@ -1,61 +0,0 @@
-Generate, import, and export PeerIDs, for use with [IPFS](https://github.com/ipfs/ipfs).
-
-> A Peer ID is the SHA-256 [multihash](https://github.com/multiformats/multihash) of a public key.
->
-> The public key is a base64 encoded string of a protobuf containing an RSA DER buffer. This uses a node buffer to pass the base64 encoded public key protobuf to the multihash for ID generation.
-
-## Example
-
-```js
-var PeerId = require('peer-id')
-
-PeerId.create({ bits: 1024 }, (err, id) => {
-  console.log(JSON.stringify(id.toJSON(), null, 2)
-})
-```
-
-```json
-{
-  "id": "Qma9T5YraSnpRDZqRR4krcSJabThc8nwZuJV3LercPHufi",
-  "privKey": "CAAS4AQwggJcAgEAAoGBAMBgbIqyOL26oV3nGPBYrdpbv..",
-  "pubKey": "CAASogEwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMBgbIqyOL26oV3nGPBYrdpbvzCY..."
-}
-```
-
-## Installation
-
-### npm
-
-```sh
-> npm i peer-id
-```
-
-## Setup
-
-### Node.js
-
-```js
-var PeerId = require('peer-id')
-```
-
-### Browser: Browserify, Webpack, other bundlers
-
-The code published to npm that gets loaded on require is in fact a ES5
-transpiled version with the right shims added. This means that you can require
-it and use with your favourite bundler without having to adjust asset management
-process.
-
-```js
-var PeerId = require('peer-id')
-```
-
-### Browser: `<script>` Tag
-
-Loading this module through a script tag will make the `PeerId` obj available in
-the global namespace.
-
-```html
-<script src="https://unpkg.com/peer-id/dist/index.min.js"></script>
-<!-- OR -->
-<script src="https://unpkg.com/peer-id/dist/index.js"></script>
-```

package.json

@@ -1,60 +1,79 @@
 {
   "name": "peer-id",
-  "version": "0.8.0",
+  "version": "0.13.4",
   "description": "IPFS Peer Id implementation in Node.js",
+  "leadMaintainer": "Vasco Santos <santos.vasco10@gmail.com>",
   "main": "src/index.js",
   "bin": "src/bin.js",
   "scripts": {
-    "lint": "aegir-lint",
+    "lint": "aegir lint",
-    "build": "aegir-build",
+    "build": "aegir build",
-    "test": "aegir-test",
+    "test": "aegir test",
-    "test:node": "aegir-test node",
+    "test:node": "aegir test -t node",
-    "test:browser": "aegir-test browser",
+    "test:browser": "aegir test -t browser -t webworker",
-    "release": "aegir-release",
+    "release": "aegir release",
-    "release-minor": "aegir-release --type minor",
+    "release-minor": "aegir release --type minor",
-    "release-major": "aegir-release --type major",
+    "release-major": "aegir release --type major",
-    "coverage": "aegir-coverage",
+    "coverage": "aegir coverage",
-    "coverage-publish": "aegir-coverage publish",
+    "size": "bundlesize -f dist/index.min.js -s 140kB"
-    "docs": "aegir-docs"
   },
+  "files": [
+    "src",
+    "dist"
+  ],
   "keywords": [
     "IPFS"
   ],
-  "author": "David Dias <daviddias@ipfs.io>",
   "license": "MIT",
-  "pre-commit": [
-    "lint",
-    "test"
-  ],
   "engines": {
-    "node": ">=4.0.0"
+    "node": ">=10.0.0",
+    "npm": ">=6.0.0"
   },
   "bugs": {
     "url": "https://github.com/libp2p/js-peer-id/issues"
   },
   "homepage": "https://github.com/libp2p/js-peer-id",
   "devDependencies": {
-    "aegir": "^9.1.2",
+    "aegir": "^20.0.0",
-    "chai": "^3.5.0",
+    "bundlesize": "~0.18.0",
-    "pre-commit": "^1.1.3"
+    "chai": "^4.2.0",
+    "dirty-chai": "^2.0.1"
   },
   "dependencies": {
-    "async": "^2.0.1",
+    "cids": "~0.7.1",
-    "libp2p-crypto": "^0.7.0",
+    "class-is": "^1.1.0",
-    "multihashes": "^0.3.0"
+    "libp2p-crypto": "~0.17.0",
+    "multihashes": "~0.4.15",
+    "protons": "^1.0.1"
   },
   "repository": {
     "type": "git",
     "url": "https://github.com/libp2p/js-peer-id.git"
   },
   "contributors": [
+    "Arve Knudsen <arve.knudsen@gmail.com>",
     "David Dias <daviddias.p@gmail.com>",
     "David Dias <mail@daviddias.me>",
     "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
+    "Henrique Dias <hacdias@gmail.com>",
+    "Hugo Dias <hugomrdias@gmail.com>",
+    "Jacob Heun <jacobheun@gmail.com>",
+    "Maciej Krüger <mkg20001@gmail.com>",
+    "Marcin Rataj <lidel@lidel.org>",
+    "Michael Garvin <gar+gh@danger.computer>",
+    "Nate Foss <npfoss@gmail.com>",
+    "Pedro Teixeira <i@pgte.me>",
+    "Prashanth Chandra <coolshanth94@gmail.com>",
     "Richard Littauer <richard.littauer@gmail.com>",
+    "Richard Schneider <makaretu@gmail.com>",
     "Stephen Whitmore <stephen.whitmore@gmail.com>",
+    "Topper Bowers <topper@quorumcontrol.com>",
+    "Vasco Santos <vasco.santos@moxy.studio>",
+    "Vasco Santos <vasco.santos@ua.pt>",
+    "Yahya <ya7yaz@gmail.com>",
     "greenkeeperio-bot <support@greenkeeper.io>",
     "nginnever <ginneversource@gmail.com>",
-    "npmcdn-to-unpkg-bot <npmcdn-to-unpkg-bot@users.noreply.github.com>"
+    "npmcdn-to-unpkg-bot <npmcdn-to-unpkg-bot@users.noreply.github.com>",
+    "ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>"
   ]
 }

src/bin.js

@@ -1,13 +1,12 @@
-#!/usr/local/bin/node
+#!/usr/bin/env node
 
 'use strict'
 
 const PeerId = require('./index.js')
 
-PeerId.create((err, id) => {
+async function main () {
-  if (err) {
+  const id = await PeerId.create()
-    throw err
+  console.log(JSON.stringify(id.toJSON(), null, 2)) // eslint-disable-line no-console
 }
 
-  console.log(JSON.stringify(id.toJSON(), null, 2))
+main()
-})

src/index.js

@@ -1,32 +1,17 @@
+/*
+ * Id is an object representation of a peer Id. a peer Id is a multihash
+ */
+
 'use strict'
 
 const mh = require('multihashes')
-const crypto = require('libp2p-crypto')
+const CID = require('cids')
+const cryptoKeys = require('libp2p-crypto/src/keys')
 const assert = require('assert')
-const waterfall = require('async/waterfall')
+const withIs = require('class-is')
+const { PeerIdProto } = require('./proto')
 
-/**
- * @name PeerIdJson
- * @type {Object}
- * @typedef {Object} PeerIdJson
- * @param {string} id - `Base58` encoded peer id
- * @param {string=} privKey - The RSA private key in protobuf format, encoded in `base64`.
- * @param {string=} pubKey - The RSA public key in protobuf format, encoded in `base64`.
- */
-
-/**
- * A Peer ID is the SHA-256
- * [multihash](https://github.com/multiformats/multihash) of a
- * public key.
- * @class PeerId
- * @see [libp2p-crypto](htttps://github.com/libp2p/js-libp2p-crypto)
- */
 class PeerId {
-  /**
-   * @param {Buffer} id
-   * @param {RSAPrivateKey=} privKey
-   * @param {RSAPublickKey=} pubKey
-   */
   constructor (id, privKey, pubKey) {
     assert(Buffer.isBuffer(id), 'invalid id provided')
 
@@ -34,306 +19,309 @@ class PeerId {
       assert(privKey.public.bytes.equals(pubKey.bytes), 'inconsistent arguments')
     }
 
-    /**
+    this._id = id
-     * @type {Buffer}
+    this._idB58String = mh.toB58String(this.id)
-     */
-    this.id = id
     this._privKey = privKey
     this._pubKey = pubKey
   }
 
-  /**
+  get id () {
-   * The private key of this id, if it exists.
+    return this._id
-   *
+  }
-   * @type {RSAPrivateKey|undefined}
+
-   */
+  set id (val) {
+    throw new Error('Id is immutable')
+  }
+
   get privKey () {
     return this._privKey
   }
 
-  /**
+  set privKey (privKey) {
-   * The public key of this id, if it exists.
+    this._privKey = privKey
-   *
+  }
-   * @type {(RSAPublicKey|undefined)}
+
-   */
   get pubKey () {
     if (this._pubKey) {
       return this._pubKey
     }
 
-    if (this.privKey) {
+    if (this._privKey) {
-      return this.privKey.public
+      return this._privKey.public
+    }
+
+    const decoded = mh.decode(this.id)
+
+    if (decoded.name === 'identity') {
+      this._pubKey = cryptoKeys.unmarshalPublicKey(decoded.digest)
+      return this._pubKey
     }
   }
 
-  /** Create the protobuf version of the public key,
+  set pubKey (pubKey) {
-   *  matching go-ipfs formatting.
+    this._pubKey = pubKey
-   *
+  }
-   * @returns {Buffer} - The marshalled public key
+
-   */
+  // Return the protobuf version of the public key, matching go ipfs formatting
   marshalPubKey () {
     if (this.pubKey) {
-      return crypto.marshalPublicKey(this.pubKey)
+      return cryptoKeys.marshalPublicKey(this.pubKey)
     }
   }
 
-  /** Create the protobuf version of the private key,
+  // Return the protobuf version of the private key, matching go ipfs formatting
-   *  matching go-ipfs formatting.
-   *
-   * @returns {Buffer}
-   */
   marshalPrivKey () {
     if (this.privKey) {
-      return crypto.marshalPrivateKey(this.privKey)
+      return cryptoKeys.marshalPrivateKey(this.privKey)
     }
   }
 
-  /**
+  // Return the protobuf version of the peer-id
-   * Alias for `toJSON`.
+  marshal (excludePriv) {
-   *
+    return PeerIdProto.encode({
-   * @returns {PeerIdJson}
+      id: this.toBytes(),
-   */
+      pubKey: this.marshalPubKey(),
+      privKey: excludePriv ? null : this.marshalPrivKey()
+    })
+  }
+
   toPrint () {
-    return this.toJSON()
+    let pid = this.toB58String()
+    // All sha256 nodes start with Qm
+    // We can skip the Qm to make the peer.ID more useful
+    if (pid.startsWith('Qm')) {
+      pid = pid.slice(2)
+    }
+    let maxRunes = 6
+    if (pid.length < maxRunes) {
+      maxRunes = pid.length
     }
 
-  /**
+    return '<peer.ID ' + pid.substr(0, maxRunes) + '>'
-   * Return the jsonified version of the key, matching the formatting
+  }
-   * of go-ipfs for its config file.
+
-   *
+  // return the jsonified version of the key, matching the formatting
-   * @returns {PeerIdJson}
+  // of go-ipfs for its config file
-   */
   toJSON () {
     return {
-      id: mh.toB58String(this.id),
+      id: this.toB58String(),
       privKey: toB64Opt(this.marshalPrivKey()),
       pubKey: toB64Opt(this.marshalPubKey())
     }
   }
 
-  /**
+  // encode/decode functions
-   * Returns the Peer ID's `id` as a hex string.
-   *
-   * @returns {String}
-   */
   toHexString () {
     return mh.toHexString(this.id)
   }
 
-  /**
-   * Returns the Peer ID's `id` as a buffer.
-   *
-   * @returns {Buffer}
-   */
   toBytes () {
     return this.id
   }
 
-  /**
-   * Returns the Peer ID's `id` as a base58 string.
-   *
-   * @returns {String}
-   */
   toB58String () {
-    return mh.toB58String(this.id)
+    return this._idB58String
   }
 
-  /**
+  // return self-describing String representation
-   * Create a new `PeerId` by generating a new public/private keypair.
+  // in default format from RFC 0001: https://github.com/libp2p/specs/pull/209
-   *
+  toString () {
-   * @param {Object=} opts - Configuration object.
+    if (!this._idCIDString) {
-   * @param {number} [opts.bits=2048] - How many bits to use for the RSA key generation.
+      const cid = new CID(1, 'libp2p-key', this.id, 'base32')
-   * @param {function(Error, PeerId)} callback - Node.js style callback.
+      this._idCIDString = cid.toBaseEncodedString('base32')
-   * @returns {undefined}
-   *
-   * @example
-   * const PeerId = require('peer-id')
-   *
-   * PeerId.create((err, id) => {
-   *   if (err) {
-   *     throw err
-   *   }
-   *   console.log('id', JSON.stringify(id))
-   * })
-   *
-   */
-  static create (opts, callback) {
-    if (typeof opts === 'function') {
-      callback = opts
-      opts = {}
     }
+    return this._idCIDString
+  }
+
+  isEqual (id) {
+    if (Buffer.isBuffer(id)) {
+      return this.id.equals(id)
+    } else if (id.id) {
+      return this.id.equals(id.id)
+    } else {
+      throw new Error('not valid Id')
+    }
+  }
+
+  /*
+   * Check if this PeerId instance is valid (privKey -> pubKey -> Id)
+   */
+  isValid () {
+    // TODO: needs better checking
+    return Boolean(this.privKey &&
+      this.privKey.public &&
+      this.privKey.public.bytes &&
+      Buffer.isBuffer(this.pubKey.bytes) &&
+      this.privKey.public.bytes.equals(this.pubKey.bytes))
+  }
+}
+
+const PeerIdWithIs = withIs(PeerId, {
+  className: 'PeerId',
+  symbolName: '@libp2p/js-peer-id/PeerId'
+})
+
+exports = module.exports = PeerIdWithIs
+
+const computeDigest = (pubKey) => {
+  if (pubKey.bytes.length <= 42) {
+    return mh.encode(pubKey.bytes, 'identity')
+  } else {
+    return pubKey.hash()
+  }
+}
+
+const computePeerId = async (privKey, pubKey) => {
+  const digest = await computeDigest(pubKey)
+  return new PeerIdWithIs(digest, privKey, pubKey)
+}
+
+// generation
+exports.create = async (opts) => {
   opts = opts || {}
   opts.bits = opts.bits || 2048
+  opts.keyType = opts.keyType || 'RSA'
 
-    waterfall([
+  const key = await cryptoKeys.generateKeyPair(opts.keyType, opts.bits)
-      (cb) => crypto.generateKeyPair('RSA', opts.bits, cb),
+  return computePeerId(key, key.public)
-      (privKey, cb) => privKey.public.hash((err, digest) => {
-        cb(err, digest, privKey)
-      })
-    ], (err, digest, privKey) => {
-      if (err) {
-        return callback(err)
 }
 
-      callback(null, new PeerId(digest, privKey))
+exports.createFromHexString = (str) => {
-    })
+  return new PeerIdWithIs(mh.fromHexString(str))
 }
 
-  /**
+exports.createFromBytes = (buf) => {
-   * Creates a Peer ID from hex string representing the key's multihash.
+  return new PeerIdWithIs(buf)
-   *
-   * @param {string} str - Hex encoded id
-   * @returns {PeerId}
-   */
-  static createFromHexString (str) {
-    return new PeerId(mh.fromHexString(str))
 }
 
-  /**
+exports.createFromB58String = (str) => {
-   * Creates a Peer ID from a buffer representing the key's multihash.
+  return exports.createFromCID(str) // B58String is CIDv0
-   *
-   * @param {Buffer} buf
-   * @returns {PeerId}
-   */
-  static createFromBytes (buf) {
-    return new PeerId(buf)
 }
 
-  /**
+const validMulticodec = (cid) => {
-   * Creates a Peer ID from a `base58` string representing the
+  // supported: 'libp2p-key' (CIDv1) and 'dag-pb' (CIDv0 converted to CIDv1)
-   * key's multihash.
+  return cid.codec === 'libp2p-key' || cid.codec === 'dag-pb'
-   *
-   * @param {string} str - `base58` encoded id
-   * @returns {PeerId}
-   */
-  static createFromB58String (str) {
-    return new PeerId(mh.fromB58String(str))
 }
 
-  /**
+exports.createFromCID = (cid) => {
-   * Creates a Peer ID from a buffer containing a public key.
+  cid = CID.isCID(cid) ? cid : new CID(cid)
-   *
+  if (!validMulticodec(cid)) throw new Error('Supplied PeerID CID has invalid multicodec: ' + cid.codec)
-   * @param {string|Buffer} key
+  return new PeerIdWithIs(cid.multihash)
-   * @param {function(Error, PeerId)} callback
+}
-   * @returns {undefined}
+
-   */
+// Public Key input will be a buffer
-  static createFromPubKey (key, callback) {
+exports.createFromPubKey = async (key) => {
   let buf = key
+
   if (typeof buf === 'string') {
-      buf = new Buffer(key, 'base64')
+    buf = Buffer.from(key, 'base64')
   }
 
-    if (typeof callback !== 'function') {
+  if (!Buffer.isBuffer(buf)) {
-      throw new Error('callback is required')
+    throw new Error('Supplied key is neither a base64 string nor a buffer')
   }
 
-    const pubKey = crypto.unmarshalPublicKey(buf)
+  const pubKey = await cryptoKeys.unmarshalPublicKey(buf)
-    pubKey.hash((err, digest) => {
+  return computePeerId(null, pubKey)
-      if (err) {
-        return callback(err)
 }
 
-      callback(null, new PeerId(digest, null, pubKey))
+// Private key input will be a string
-    })
+exports.createFromPrivKey = async (key) => {
-  }
-
-  /**
-   * Creates a Peer ID from a buffer containing a private key.
-   *
-   * @param {string|Buffer} key - The private key, if passed as
-   *   string `base64` encoding is assumed.
-   * @param {function(Error, PeerId)} callback
-   * @returns {undefined}
-   */
-  static createFromPrivKey (key, callback) {
   let buf = key
+
   if (typeof buf === 'string') {
-      buf = new Buffer(key, 'base64')
+    buf = Buffer.from(key, 'base64')
   }
 
-    if (typeof callback !== 'function') {
+  if (!Buffer.isBuffer(buf)) {
-      throw new Error('callback is required')
+    throw new Error('Supplied key is neither a base64 string nor a buffer')
   }
 
-    waterfall([
+  const privKey = await cryptoKeys.unmarshalPrivateKey(buf)
-      (cb) => crypto.unmarshalPrivateKey(buf, cb),
+  return computePeerId(privKey, privKey.public)
-      (privKey, cb) => privKey.public.hash((err, digest) => {
-        cb(err, digest, privKey)
-      })
-    ], (err, digest, privKey) => {
-      if (err) {
-        return callback(err)
-      }
-
-      callback(null, new PeerId(digest, privKey))
-    })
-  }
-
-  /**
-   * Import a `PeerId` from a serialized JSON object.
-   *
-   * @param {PeerIdJson} obj
-   * @param {function(Error, PeerId)} callback
-   * @returns {undefined}
-   */
-  static createFromJSON (obj, callback) {
-    if (typeof callback !== 'function') {
-      throw new Error('callback is required')
 }
 
+exports.createFromJSON = async (obj) => {
   const id = mh.fromB58String(obj.id)
-    const rawPrivKey = obj.privKey && new Buffer(obj.privKey, 'base64')
+  const rawPrivKey = obj.privKey && Buffer.from(obj.privKey, 'base64')
-    const rawPubKey = obj.pubKey && new Buffer(obj.pubKey, 'base64')
+  const rawPubKey = obj.pubKey && Buffer.from(obj.pubKey, 'base64')
-    const pub = rawPubKey && crypto.unmarshalPublicKey(rawPubKey)
+  const pub = rawPubKey && await cryptoKeys.unmarshalPublicKey(rawPubKey)
+
+  if (!rawPrivKey) {
+    return new PeerIdWithIs(id, null, pub)
+  }
+
+  const privKey = await cryptoKeys.unmarshalPrivateKey(rawPrivKey)
+  const privDigest = await computeDigest(privKey.public)
+
+  let pubDigest
 
-    if (rawPrivKey) {
-      waterfall([
-        (cb) => crypto.unmarshalPrivateKey(rawPrivKey, cb),
-        (priv, cb) => priv.public.hash((err, digest) => {
-          cb(err, digest, priv)
-        }),
-        (privDigest, priv, cb) => {
   if (pub) {
-            pub.hash((err, pubDigest) => {
+    pubDigest = await computeDigest(pub)
-              cb(err, privDigest, priv, pubDigest)
-            })
-          } else {
-            cb(null, privDigest, priv)
-          }
-        }
-      ], (err, privDigest, priv, pubDigest) => {
-        if (err) {
-          return callback(err)
   }
 
   if (pub && !privDigest.equals(pubDigest)) {
-          return callback(new Error('Public and private key do not match'))
+    throw new Error('Public and private key do not match')
   }
 
   if (id && !privDigest.equals(id)) {
-          return callback(new Error('Id and private key do not match'))
+    throw new Error('Id and private key do not match')
   }
 
-        callback(null, new PeerId(id, priv, pub))
+  return new PeerIdWithIs(id, privKey, pub)
-      })
+}
-    } else {
+
-      callback(null, new PeerId(id, null, pub))
+exports.createFromProtobuf = async (buf) => {
-    }
+  if (typeof buf === 'string') {
-  }
+    buf = Buffer.from(buf, 'hex')
+  }
+
+  let { id, privKey, pubKey } = PeerIdProto.decode(buf)
+
+  privKey = privKey ? await cryptoKeys.unmarshalPrivateKey(privKey) : false
+  pubKey = pubKey ? await cryptoKeys.unmarshalPublicKey(pubKey) : false
+
+  let pubDigest
+  let privDigest
+
+  if (privKey) {
+    privDigest = await computeDigest(privKey.public)
+  }
+
+  if (pubKey) {
+    pubDigest = await computeDigest(pubKey)
+  }
+
+  if (privKey) {
+    if (pubKey) {
+      if (!privDigest.equals(pubDigest)) {
+        throw new Error('Public and private key do not match')
+      }
+    }
+    return new PeerIdWithIs(privDigest, privKey, privKey.public)
+  }
+
+  // TODO: val id and pubDigest
+
+  if (pubKey) {
+    return new PeerIdWithIs(pubDigest, null, pubKey)
+  }
+
+  if (id) {
+    return new PeerIdWithIs(id)
+  }
+
+  throw new Error('Protobuf did not contain any usable key material')
+}
+
+exports.isPeerId = (peerId) => {
+  return Boolean(typeof peerId === 'object' &&
+    peerId._id &&
+    peerId._idB58String)
 }
 
-/**
- * Convert a given `Buffer` to a `base64` encoded string.
- * If no `val` is given it just returns `undefined`.
- *
- * @private
- * @param {Buffer=} val
- * @returns {string|undefined}
- */
 function toB64Opt (val) {
   if (val) {
     return val.toString('base64')
   }
 }
-
-exports = module.exports = PeerId

src/proto.js

@@ -0,0 +1,12 @@
+'use strict'
+
+const protons = require('protons')
+module.exports = protons(`
+
+message PeerIdProto {
+  required bytes id = 1;
+  bytes pubKey = 2;
+  bytes privKey = 3;
+}
+
+`)

test/fixtures/sample-id.js

@@ -3,5 +3,6 @@
 module.exports = {
   id: '122019318b6e5e0cf93a2314bf01269a2cc23cd3dcd452d742cdb9379d8646f6e4a9',
   privKey: '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',
-  pubKey: 'CAASpgIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2SKo/HMFZeBml1AF3XijzrxrfQXdJzjePBZAbdxqKR1Mc6juRHXij6HXYPjlAk01BhF1S3Ll4Lwi0cAHhggf457sMg55UWyeGKeUv0ucgvCpBwlR5cQ020i0MgzjPWOLWq1rtvSbNcAi2ZEVn6+Q2EcHo3wUvWRtLeKz+DZSZfw2PEDC+DGPJPl7f8g7zl56YymmmzH9liZLNrzg/qidokUv5u1pdGrcpLuPNeTODk0cqKB+OUbuKj9GShYECCEjaybJDl9276oalL9ghBtSeEv20kugatTvYy590wFlJkkvyl+nPxIH0EEYMKK9XRWlu9XYnoSfboiwcv8M3SlsjAgMBAAE='
+  pubKey: 'CAASpgIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2SKo/HMFZeBml1AF3XijzrxrfQXdJzjePBZAbdxqKR1Mc6juRHXij6HXYPjlAk01BhF1S3Ll4Lwi0cAHhggf457sMg55UWyeGKeUv0ucgvCpBwlR5cQ020i0MgzjPWOLWq1rtvSbNcAi2ZEVn6+Q2EcHo3wUvWRtLeKz+DZSZfw2PEDC+DGPJPl7f8g7zl56YymmmzH9liZLNrzg/qidokUv5u1pdGrcpLuPNeTODk0cqKB+OUbuKj9GShYECCEjaybJDl9276oalL9ghBtSeEv20kugatTvYy590wFlJkkvyl+nPxIH0EEYMKK9XRWlu9XYnoSfboiwcv8M3SlsjAgMBAAE=',
+  marshaled: '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'
 }

test/index.spec.js

@@ -1,225 +0,0 @@
-/* eslint max-nested-callbacks: ["error", 8] */
-/* eslint-env mocha */
-'use strict'
-
-const expect = require('chai').expect
-const crypto = require('libp2p-crypto')
-const mh = require('multihashes')
-const parallel = require('async/parallel')
-
-const PeerId = require('../src')
-
-const testId = require('./fixtures/sample-id')
-const testIdHex = testId.id
-const testIdBytes = mh.fromHexString(testId.id)
-const testIdB58String = mh.toB58String(testIdBytes)
-
-const goId = require('./fixtures/go-private-key')
-
-describe('PeerId', () => {
-  it('create an id without \'new\'', () => {
-    expect(PeerId).to.throw(Error)
-  })
-
-  it('create a new id', (done) => {
-    PeerId.create((err, id) => {
-      expect(err).to.not.exist
-      expect(id.toB58String().length).to.equal(46)
-      done()
-    })
-  })
-
-  it('recreate an Id from Hex string', () => {
-    const id = PeerId.createFromHexString(testIdHex)
-    expect(testIdBytes).to.deep.equal(id.id)
-  })
-
-  it('Recreate an Id from a Buffer', () => {
-    const id = PeerId.createFromBytes(testIdBytes)
-    expect(testId.id).to.equal(id.toHexString())
-  })
-
-  it('Recreate a B58 String', () => {
-    const id = PeerId.createFromB58String(testIdB58String)
-    expect(testIdB58String).to.equal(id.toB58String())
-  })
-
-  it('Recreate from a Public Key', (done) => {
-    PeerId.createFromPubKey(testId.pubKey, (err, id) => {
-      expect(err).to.not.exist
-      expect(testIdB58String).to.equal(id.toB58String())
-      done()
-    })
-  })
-
-  it('Recreate from a Private Key', (done) => {
-    PeerId.createFromPrivKey(testId.privKey, (err, id) => {
-      expect(err).to.not.exist
-      expect(testIdB58String).to.equal(id.toB58String())
-
-      const encoded = new Buffer(testId.privKey, 'base64')
-      PeerId.createFromPrivKey(encoded, (err, id2) => {
-        expect(err).to.not.exist
-        expect(testIdB58String).to.equal(id2.toB58String())
-        done()
-      })
-    })
-  })
-
-  it('Compare generated ID with one created from PubKey', (done) => {
-    PeerId.create((err, id1) => {
-      expect(err).to.not.exist
-
-      PeerId.createFromPubKey(id1.marshalPubKey(), (err, id2) => {
-        expect(err).to.not.exist
-        expect(id1.id).to.be.eql(id2.id)
-        done()
-      })
-    })
-  })
-
-  it('Non-default # of bits', (done) => {
-    PeerId.create({ bits: 1024 }, (err, shortId) => {
-      expect(err).to.not.exist
-      PeerId.create({ bits: 4096 }, (err, longId) => {
-        expect(err).to.not.exist
-        expect(shortId.privKey.bytes.length).is.below(longId.privKey.bytes.length)
-        done()
-      })
-    })
-  })
-
-  it('Pretty printing', (done) => {
-    PeerId.create((err, id1) => {
-      expect(err).to.not.exist
-      PeerId.createFromPrivKey(id1.toPrint().privKey, (err, id2) => {
-        expect(err).to.not.exist
-        expect(id1.toPrint()).to.be.eql(id2.toPrint())
-        done()
-      })
-    })
-  })
-
-  it('toBytes', () => {
-    const id = PeerId.createFromHexString(testIdHex)
-    expect(id.toBytes().toString('hex')).to.equal(testIdBytes.toString('hex'))
-  })
-
-  describe('fromJSON', () => {
-    it('full node', (done) => {
-      PeerId.create({bits: 1024}, (err, id) => {
-        expect(err).to.not.exist
-
-        PeerId.createFromJSON(id.toJSON(), (err, other) => {
-          expect(err).to.not.exist
-          expect(
-            id.toB58String()
-          ).to.equal(
-            other.toB58String()
-          )
-          expect(
-            id.privKey.bytes
-          ).to.deep.equal(
-            other.privKey.bytes
-          )
-          expect(
-            id.pubKey.bytes
-          ).to.deep.equal(
-            other.pubKey.bytes
-          )
-          done()
-        })
-      })
-    })
-
-    it('only id', (done) => {
-      crypto.generateKeyPair('RSA', 1024, (err, key) => {
-        expect(err).to.not.exist
-        key.public.hash((err, digest) => {
-          expect(err).to.not.exist
-
-          const id = PeerId.createFromBytes(digest)
-          expect(id.privKey).to.not.exist
-          expect(id.pubKey).to.not.exist
-
-          PeerId.createFromJSON(id.toJSON(), (err, other) => {
-            expect(err).to.not.exist
-            expect(
-              id.toB58String()
-            ).to.equal(
-              other.toB58String()
-            )
-            done()
-          })
-        })
-      })
-    })
-
-    it('go interop', (done) => {
-      PeerId.createFromJSON(goId, (err, id) => {
-        expect(err).to.not.exist
-        id.privKey.public.hash((err, digest) => {
-          expect(err).to.not.exist
-          expect(
-            mh.toB58String(digest)
-          ).to.be.eql(
-            goId.id
-          )
-          done()
-        })
-      })
-    })
-  })
-
-  describe('throws on inconsistent data', () => {
-    let k1, k2, k3
-    before((done) => {
-      parallel([
-        (cb) => crypto.generateKeyPair('RSA', 1024, cb),
-        (cb) => crypto.generateKeyPair('RSA', 1024, cb),
-        (cb) => crypto.generateKeyPair('RSA', 1024, cb)
-      ], (err, keys) => {
-        if (err) {
-          return done(err)
-        }
-
-        k1 = keys[0]
-        k2 = keys[1]
-        k3 = keys[2]
-        done()
-      })
-    })
-
-    it('missmatch private - public key', (done) => {
-      k1.public.hash((err, digest) => {
-        expect(err).to.not.exist
-        expect(
-          () => new PeerId(digest, k1, k2.public)
-        ).to.throw(
-            /inconsistent arguments/
-        )
-        done()
-      })
-    })
-
-    it('missmatch id - private - public key', (done) => {
-      k1.public.hash((err, digest) => {
-        expect(err).to.not.exist
-        expect(
-          () => new PeerId(digest, k1, k3.public)
-        ).to.throw(
-            /inconsistent arguments/
-        )
-        done()
-      })
-    })
-
-    it('invalid id', () => {
-      expect(
-        () => new PeerId('hello world')
-      ).to.throw(
-        /invalid id/
-      )
-    })
-  })
-})

test/peer-id.spec.js

@@ -0,0 +1,341 @@
+/* eslint max-nested-callbacks: ["error", 8] */
+/* eslint-env mocha */
+'use strict'
+
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+chai.use(dirtyChai)
+const expect = chai.expect
+const crypto = require('libp2p-crypto')
+const mh = require('multihashes')
+const CID = require('cids')
+
+const PeerId = require('../src')
+
+const util = require('util')
+
+const testId = require('./fixtures/sample-id')
+const testIdHex = testId.id
+const testIdBytes = mh.fromHexString(testId.id)
+const testIdB58String = mh.toB58String(testIdBytes)
+const testIdCID = new CID(1, 'libp2p-key', testIdBytes)
+const testIdCIDString = testIdCID.toBaseEncodedString('base32')
+
+const goId = require('./fixtures/go-private-key')
+
+// Test options for making PeerId.create faster
+// INSECURE, only use when testing
+const testOpts = {
+  bits: 512
+}
+
+describe('PeerId', () => {
+  it('create an id without \'new\'', () => {
+    expect(PeerId).to.throw(Error)
+  })
+
+  it('create a new id', async () => {
+    const id = await PeerId.create(testOpts)
+    expect(id.toB58String().length).to.equal(46)
+  })
+
+  it('can be created for a Secp256k1 key', async () => {
+    const id = await PeerId.create({ keyType: 'secp256k1', bits: 256 })
+    const expB58 = mh.toB58String(mh.encode(id.pubKey.bytes, 'identity'))
+    expect(id.toB58String()).to.equal(expB58)
+  })
+
+  it('can get the public key from a Secp256k1 key', async () => {
+    const original = await PeerId.create({ keyType: 'secp256k1', bits: 256 })
+    const newId = PeerId.createFromB58String(original.toB58String())
+    expect(original.pubKey.bytes).to.eql(newId.pubKey.bytes)
+  })
+
+  it('isPeerId', async () => {
+    const id = await PeerId.create(testOpts)
+    expect(PeerId.isPeerId(id)).to.equal(true)
+    expect(PeerId.isPeerId('aaa')).to.equal(false)
+    expect(PeerId.isPeerId(Buffer.from('batatas'))).to.equal(false)
+  })
+
+  it('throws on changing the id', async () => {
+    const id = await PeerId.create(testOpts)
+    expect(id.toB58String().length).to.equal(46)
+    expect(() => {
+      id.id = Buffer.from('hello')
+    }).to.throw(/immutable/)
+  })
+
+  it('recreate from Hex string', () => {
+    const id = PeerId.createFromHexString(testIdHex)
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from a Buffer', () => {
+    const id = PeerId.createFromBytes(testIdBytes)
+    expect(testId.id).to.equal(id.toHexString())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from a B58 String', () => {
+    const id = PeerId.createFromB58String(testIdB58String)
+    expect(testIdB58String).to.equal(id.toB58String())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from CID object', () => {
+    const id = PeerId.createFromCID(testIdCID)
+    expect(testIdCIDString).to.equal(id.toString())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from Base58 String (CIDv0))', () => {
+    const id = PeerId.createFromCID(testIdB58String)
+    expect(testIdCIDString).to.equal(id.toString())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from CIDv1 Base32 (libp2p-key multicodec)', () => {
+    const cid = new CID(1, 'libp2p-key', testIdBytes)
+    const cidString = cid.toBaseEncodedString('base32')
+    const id = PeerId.createFromCID(cidString)
+    expect(cidString).to.equal(id.toString())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from CIDv1 Base32 (dag-pb multicodec)', () => {
+    const cid = new CID(1, 'dag-pb', testIdBytes)
+    const cidString = cid.toBaseEncodedString('base32')
+    const id = PeerId.createFromCID(cidString)
+    // toString should return CID with multicodec set to libp2p-key
+    expect(new CID(id.toString()).codec).to.equal('libp2p-key')
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from CID Buffer', () => {
+    const id = PeerId.createFromCID(testIdCID.buffer)
+    expect(testIdCIDString).to.equal(id.toString())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('throws on invalid CID multicodec', () => {
+    // only libp2p and dag-pb are supported
+    const invalidCID = new CID(1, 'raw', testIdBytes).toBaseEncodedString('base32')
+    expect(() => {
+      PeerId.createFromCID(invalidCID)
+    }).to.throw(/Supplied PeerID CID has invalid multicodec: raw/)
+  })
+
+  it('throws on invalid CID value', () => {
+    // using function code that does not represent valid hash function
+    // https://github.com/multiformats/js-multihash/blob/b85999d5768bf06f1b0f16b926ef2cb6d9c14265/src/constants.js#L345
+    const invalidCID = 'QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L'
+    expect(() => {
+      PeerId.createFromCID(invalidCID)
+    }).to.throw(/multihash unknown function code: 0x50/)
+  })
+
+  it('throws on invalid CID object', () => {
+    const invalidCID = {}
+    expect(() => {
+      PeerId.createFromCID(invalidCID)
+    }).to.throw(/Invalid version, must be a number equal to 1 or 0/)
+  })
+
+  it('throws on invalid CID object', () => {
+    const invalidCID = {}
+    expect(() => {
+      PeerId.createFromCID(invalidCID)
+    }).to.throw(/Invalid version, must be a number equal to 1 or 0/)
+  })
+
+  it('recreate from a Public Key', async () => {
+    const id = await PeerId.createFromPubKey(testId.pubKey)
+    expect(testIdB58String).to.equal(id.toB58String())
+    expect(testIdBytes).to.deep.equal(id.toBytes())
+  })
+
+  it('recreate from a Private Key', async () => {
+    const id = await PeerId.createFromPrivKey(testId.privKey)
+    expect(testIdB58String).to.equal(id.toB58String())
+    const encoded = Buffer.from(testId.privKey, 'base64')
+    const id2 = await PeerId.createFromPrivKey(encoded)
+    expect(testIdB58String).to.equal(id2.toB58String())
+    expect(id.marshalPubKey()).to.deep.equal(id2.marshalPubKey())
+  })
+
+  it('recreate from Protobuf', async () => {
+    const id = await PeerId.createFromProtobuf(testId.marshaled)
+    expect(testIdB58String).to.equal(id.toB58String())
+    const encoded = Buffer.from(testId.privKey, 'base64')
+    const id2 = await PeerId.createFromPrivKey(encoded)
+    expect(testIdB58String).to.equal(id2.toB58String())
+    expect(id.marshalPubKey()).to.deep.equal(id2.marshalPubKey())
+    expect(id.marshal().toString('hex')).to.deep.equal(testId.marshaled)
+  })
+
+  it('can be created from a Secp256k1 public key', async () => {
+    const privKey = await crypto.keys.generateKeyPair('secp256k1', 256)
+    const id = await PeerId.createFromPubKey(privKey.public.bytes)
+    const expB58 = mh.toB58String(mh.encode(id.pubKey.bytes, 'identity'))
+    expect(id.toB58String()).to.equal(expB58)
+  })
+
+  it('can be created from a Secp256k1 private key', async () => {
+    const privKey = await crypto.keys.generateKeyPair('secp256k1', 256)
+    const id = await PeerId.createFromPrivKey(privKey.bytes)
+    const expB58 = mh.toB58String(mh.encode(id.pubKey.bytes, 'identity'))
+    expect(id.toB58String()).to.equal(expB58)
+  })
+
+  it('Compare generated ID with one created from PubKey', async () => {
+    const id1 = await PeerId.create(testOpts)
+    const id2 = await PeerId.createFromPubKey(id1.marshalPubKey())
+    expect(id1.id).to.be.eql(id2.id)
+  })
+
+  it('Works with default options', async function () {
+    this.timeout(10000)
+    const id = await PeerId.create()
+    expect(id.toB58String().length).to.equal(46)
+  })
+
+  it('Non-default # of bits', async function () {
+    this.timeout(1000 * 60)
+    const shortId = await PeerId.create(testOpts)
+    const longId = await PeerId.create({ bits: 1024 })
+    expect(shortId.privKey.bytes.length).is.below(longId.privKey.bytes.length)
+  })
+
+  it('Pretty printing', async () => {
+    const id1 = await PeerId.create(testOpts)
+    const id2 = await PeerId.createFromPrivKey((id1.toJSON()).privKey)
+    expect(id1.toPrint()).to.be.eql(id2.toPrint())
+    expect(id1.toPrint()).to.equal('<peer.ID ' + id1.toB58String().substr(2, 6) + '>')
+  })
+
+  it('toBytes', () => {
+    const id = PeerId.createFromHexString(testIdHex)
+    expect(id.toBytes().toString('hex')).to.equal(testIdBytes.toString('hex'))
+  })
+
+  it('isEqual', async () => {
+    const ids = await Promise.all([
+      PeerId.create(testOpts),
+      PeerId.create(testOpts)
+    ])
+
+    expect(ids[0].isEqual(ids[0])).to.equal(true)
+    expect(ids[0].isEqual(ids[1])).to.equal(false)
+    expect(ids[0].isEqual(ids[0].id)).to.equal(true)
+    expect(ids[0].isEqual(ids[1].id)).to.equal(false)
+  })
+
+  describe('fromJSON', () => {
+    it('full node', async () => {
+      const id = await PeerId.create(testOpts)
+      const other = await PeerId.createFromJSON(id.toJSON())
+      expect(id.toB58String()).to.equal(other.toB58String())
+      expect(id.privKey.bytes).to.eql(other.privKey.bytes)
+      expect(id.pubKey.bytes).to.eql(other.pubKey.bytes)
+    })
+
+    it('only id', async () => {
+      const key = await crypto.keys.generateKeyPair('RSA', 1024)
+      const digest = await key.public.hash()
+      const id = PeerId.createFromBytes(digest)
+      expect(id.privKey).to.not.exist()
+      expect(id.pubKey).to.not.exist()
+      const other = await PeerId.createFromJSON(id.toJSON())
+      expect(id.toB58String()).to.equal(other.toB58String())
+    })
+
+    it('go interop', async () => {
+      const id = await PeerId.createFromJSON(goId)
+      const digest = await id.privKey.public.hash()
+      expect(mh.toB58String(digest)).to.eql(goId.id)
+    })
+  })
+
+  it('set privKey (valid)', async () => {
+    const peerId = await PeerId.create(testOpts)
+    peerId.privKey = peerId._privKey
+    expect(peerId.isValid()).to.equal(true)
+  })
+
+  it('set pubKey (valid)', async () => {
+    const peerId = await PeerId.create(testOpts)
+    peerId.pubKey = peerId._pubKey
+    expect(peerId.isValid()).to.equal(true)
+  })
+
+  it('set privKey (invalid)', async () => {
+    const peerId = await PeerId.create(testOpts)
+    peerId.privKey = Buffer.from('bufff')
+    expect(peerId.isValid()).to.equal(false)
+  })
+
+  it('set pubKey (invalid)', async () => {
+    const peerId = await PeerId.create(testOpts)
+    peerId.pubKey = Buffer.from('bufff')
+    expect(peerId.isValid()).to.equal(false)
+  })
+
+  describe('returns error via cb instead of crashing', () => {
+    const garbage = [
+      Buffer.from('00010203040506070809', 'hex'),
+      {}, null, false, undefined, true, 1, 0,
+      Buffer.from(''), 'aGVsbG93b3JsZA==', 'helloworld', ''
+    ]
+
+    const fncs = ['createFromPubKey', 'createFromPrivKey', 'createFromJSON', 'createFromProtobuf']
+
+    for (const gb of garbage) {
+      for (const fn of fncs) {
+        it(`${fn} (${util.inspect(gb)})`, async () => {
+          try {
+            await PeerId[fn](gb)
+          } catch (err) {
+            expect(err).to.exist()
+          }
+        })
+      }
+    }
+  })
+
+  describe('throws on inconsistent data', () => {
+    let k1
+    let k2
+    let k3
+
+    before(async () => {
+      const keys = await Promise.all([
+        crypto.keys.generateKeyPair('RSA', 512),
+        crypto.keys.generateKeyPair('RSA', 512),
+        crypto.keys.generateKeyPair('RSA', 512)
+      ])
+
+      k1 = keys[0]
+      k2 = keys[1]
+      k3 = keys[2]
+    })
+
+    it('missmatch private - public key', async () => {
+      const digest = await k1.public.hash()
+      expect(() => {
+        new PeerId(digest, k1, k2.public) // eslint-disable-line no-new
+      }).to.throw(/inconsistent arguments/)
+    })
+
+    it('missmatch id - private - public key', async () => {
+      const digest = await k1.public.hash()
+      expect(() => {
+        new PeerId(digest, k1, k3.public) // eslint-disable-line no-new
+      }).to.throw(/inconsistent arguments/)
+    })
+
+    it('invalid id', () => {
+      expect(() => new PeerId('hello world')).to.throw(/invalid id/)
+    })
+  })
+})