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@trustcrypto/node-onlykey

v0.0.1

Published

Onlykey Javascript Library

Downloads

2

Readme

node-onlykey

STATUS: ALPHA

Get an Onlykey: https://onlykey.io/

Live Demo: https://docs.crp.to/node-onlykey/docs/

Please Leave Feedback Here https://github.com/trustcrypto/node-onlykey/issues

Onlykey 3rd Party API

Supports

  • ECDH and ECDSA (NIST256P1)
  • ECDH and EDDSA (ED25519)
  • NACL

API

require("./dist/onlykey3rd-party.js")(function(ONLYKEY) {

  var ok = ONLYKEY();

})

Events

ok.on(event,function() {})

List of events

  • "status" outputs current operation in english
  • "error" emits any errors during operations

Methods

ok.connect(function() {})

connect() does ECDH for secure session using NACL and informs hardware of current time, OS, and browser.

ok.derive_public_key(AdditionalData, keyType, press_required, function(error, ok_jwk_epub) {})

derive_public_key() does connect() and returns a hardware generated public key from OnlyKey

ok.derive_shared_secret(AdditionalData, input_jwk_epub, keyType, press_required, function(error, shared_secret, ok_jwk_epub) {})

derive_shared_secret() does connect() and returns a hardware generated shared secret from OnlyKey that can be used as private key for encryption/signing

  • AdditionalData = string or buffer to point to a derived key
  • input_jwk_epub = input public key in jwk format
  • ok_jwk_epub = onlykey output public key in jwk format
  • keyType = key generation type
  • shared_secret = shared AES-GCM key

KEYTYPE

  • KEYTYPE_NACL = 0
  • KEYTYPE_P256R1 = 1
  • KEYTYPE_P256K1 = 2
  • KEYTYPE_CURVE25519 = 3

How It Works

OnlyKey uses the RPID provided from FIDO2 (the origin url), the input public key jwk_epub, and any additional data AdditionalData such as a username to generate a public/private keypair. OnlyKey returns the public key with derive_public_key() and returns the shared secret of "input public/generated private" with derive_shared_secret().

Single-User Application - This shared secret can be used for encryption and signing purposes. Given the same inputs and the same web site origin the same shared secret can be recreated.

Multi-User Application - Like a typical ECDH key exchange, both USERA and USERB obtain hardware generated public keys with derive_public_key(), these public keys are exchanged and used as input public key for derive_shared_secret(). Each user generates the same shared secret which can be used for encryption and signing purposes between USERA and USERB.

Run Demo Locally

$ node node-onlykey/docs/server.js 

Browse to http://localhost:3000

API Authors

  • Tim ~ onlykey.io
  • Brad ~ bmatusiak.us