![Introducing Enhanced Alert Actions and Triage Functionality](https://cdn.sanity.io/images/cgdhsj6q/production/fe71306d515f85de6139b46745ea7180362324f0-2530x946.png?w=800&fit=max&auto=format)
Product
Introducing Enhanced Alert Actions and Triage Functionality
Socket now supports four distinct alert actions instead of the previous two, and alert triaging allows users to override the actions taken for all individual alerts.
@connectedcars/jwtutils
Advanced tools
Readme
Zero dependency JWT encoding and decoding for Node 6.x and 8.x
Features:
Most other JWT implementations tend be complex and have a large array of dependencies because they implement the seldom used JOSE standard. This often makes the whole JWT encoding/decoding complicated and hard to understand, something it really should not be.
So the focus of this module has been to make a simple, secure, fast and flexible set of utility methods to work with JWT's. The code itself is also easy to understand and less than 200 lines of code, making it much easier to security audit the code.
Also note doing your own crypto is a bad idea so this module only deals with the encoding/decoding of the JWT, the underlaying crypto operations are done by Node's build-in crypto api that uses openssl.
Currently only asymmetric encryption algorithms are supported as this would also be the only recommend option for production use.
const { JwtUtils, JwtVerifyError } = require('@connectedcars/jwtutils')
const unixNow = Math.floor(Date.now() / 1000)
let jwtHeader = {
typ: 'JWT',
alg: 'RS256',
kid: '1'
}
let jwtBody = {
aud: 'https://api.domain.tld',
iss: 'https://jwt.io/',
sub: 'subject@domain.tld',
iat: unixNow,
exp: unixNow + 600,
scope: ['http://stuff', 'http://stuff2']
}
// Don't use this key for anything but testing as this is the key from jwt.io
const pemEncodedPrivateKey =
'-----BEGIN RSA PRIVATE KEY-----\n' +
'MIICWwIBAAKBgQDdlatRjRjogo3WojgGHFHYLugdUWAY9iR3fy4arWNA1KoS8kVw\n' +
'33cJibXr8bvwUAUparCwlvdbH6dvEOfou0/gCFQsHUfQrSDv+MuSUMAe8jzKE4qW\n' +
'+jK+xQU9a03GUnKHkkle+Q0pX/g6jXZ7r1/xAK5Do2kQ+X5xK9cipRgEKwIDAQAB\n' +
'AoGAD+onAtVye4ic7VR7V50DF9bOnwRwNXrARcDhq9LWNRrRGElESYYTQ6EbatXS\n' +
'3MCyjjX2eMhu/aF5YhXBwkppwxg+EOmXeh+MzL7Zh284OuPbkglAaGhV9bb6/5Cp\n' +
'uGb1esyPbYW+Ty2PC0GSZfIXkXs76jXAu9TOBvD0ybc2YlkCQQDywg2R/7t3Q2OE\n' +
'2+yo382CLJdrlSLVROWKwb4tb2PjhY4XAwV8d1vy0RenxTB+K5Mu57uVSTHtrMK0\n' +
'GAtFr833AkEA6avx20OHo61Yela/4k5kQDtjEf1N0LfI+BcWZtxsS3jDM3i1Hp0K\n' +
'Su5rsCPb8acJo5RO26gGVrfAsDcIXKC+bQJAZZ2XIpsitLyPpuiMOvBbzPavd4gY\n' +
'6Z8KWrfYzJoI/Q9FuBo6rKwl4BFoToD7WIUS+hpkagwWiz+6zLoX1dbOZwJACmH5\n' +
'fSSjAkLRi54PKJ8TFUeOP15h9sQzydI8zJU+upvDEKZsZc/UhT/SySDOxQ4G/523\n' +
'Y0sz/OZtSWcol/UMgQJALesy++GdvoIDLfJX5GBQpuFgFenRiRDabxrE9MNUZ2aP\n' +
'FaFp+DyAe+b4nDwuJaW2LURbr8AEZga7oQj0uYxcYw==\n' +
'-----END RSA PRIVATE KEY-----'
// let jwt = JwtUtils.encode(pemEncodedPrivateKey, jwtHeader, jwtBody, privateKeyPassword)
let jwt = JwtUtils.encode(pemEncodedPrivateKey, jwtHeader, jwtBody)
// Don't use this key for anything but testing as this is the key from jwt.io
const publicKey =
'-----BEGIN PUBLIC KEY-----\n' +
'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDdlatRjRjogo3WojgGHFHYLugd\n' +
'UWAY9iR3fy4arWNA1KoS8kVw33cJibXr8bvwUAUparCwlvdbH6dvEOfou0/gCFQs\n' +
'HUfQrSDv+MuSUMAe8jzKE4qW+jK+xQU9a03GUnKHkkle+Q0pX/g6jXZ7r1/xAK5D\n' +
'o2kQ+X5xK9cipRgEKwIDAQAB\n' +
'-----END PUBLIC KEY-----'
const allowedAudinces = ['https://api.domain.tld']
const pubKeys = {
'https://jwt.io/': {
'1@RS256': publicKey,
'default@RS256': publicKey // Will default to this key if the header does not have a kid
}
}
try {
let decodedJwtBody = JwtUtils.decode(jwt, pubKeys, allowedAudinces)
} catch (e) {
if (e instanceof JwtVerifyError) {
// Can be returned to user
} else {
// Should not be returned to user
console.error(e)
}
}
const express = require('express')
const { JwtAuthMiddleware, JwtVerifyError } = require('@connectedcars/jwtutils')
// Configuration
const audiences = ['https://api.domain.tld']
const pubKeys = {
'https://jwt.io/': {
'1@RS256': publicKey // Fx. use key from before
},
'https://jwt.io/custom': { // Overwrite default validation for this issuer
'1@RS256': { // Same options can also be used directly with decode
publicKey: publicKey,
expiresMax: 3600, // Don't allow token that has a lifetime over 1 hour
expiresSkew: 600, // Allow tokens that expired up to 10 minutes ago
nbfIatSkew: 300, // Allow tokens that has nbf or iat in the future by up to 5 minutes
}
}
}
const app = express()
// Register the middleware
app.use(JwtAuthMiddleware(pubKeys, audiences, user => {
if (user.issuer === 'https://jwt.io/') {
if (!user.subject.match(/^[^@]+@domain\.tld$/)) {
throw new JwtVerifyError('Issuer https://jwt.io/ only allowed to have subject ending in @domain.tld')
}
}
}))
// Register an error handler to return 401 errors
app.use((err, req, res, next) => {
if (err instanceof JwtVerifyError) {
if (err.innerError) {
console.error(`Failed with: ${err.innerError.message}`)
}
res.status(401).send(err.message)
} else {
res.status(500).send('Unknown error')
}
})
app.get('/', (req, res) => {
res.send(`Hello ${req.user.subject}`)
})
app.listen(3000, () => {
console.log('Example app listening on port 3000!')
})
Generate private RSA key:
# Here the key is encrypted with aes256
openssl genrsa -aes256 -out private.pem 2048
Generate public key from private key:
openssl rsa -in private.pem -outform PEM -pubout -out public.pem
NOTE: Does not support nested JSON
Load private key:
jwtencode private.pem
Copy/paste to stdin (Ctrl-D to end), the password line is only needed if the private key is encrypted:
password password-for-private-key
{
"alg": "RS256",
"typ": "JWT",
"kid": "1"
}
{
"iss": "jwt.io",
"aud": "https://api.domain.tld",
"sub": "subject@domain.tld",
"iat": 1504292127,
"nbf": 1504292127,
"exp": 1598986470
}
jwtdecode public.pem 1 RS256 https://jwt.io localhost
Copy/paste to stdin (Ctrl-D to end):
eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6IjEifQ.eyJpc3MiOiJodHRwczovL2p3dC5pbyIsImF1ZCI6ImxvY2FsaG9zdCIsInN1YiI6InN1YmplY3RAZG9tYWluLnRsZCIsImlhdCI6MTUwNDI5MjEyNywibmJmIjoxNTA0MjkyMTI3LCJleHAiOjE1OTg5ODY0NzB9.0L5AWwUF3EleBqnQ6V0Lqa36jCccP4A7cAFHHIY1b-oE7pxCoFr8gnAOrlc16N0WUPI6O17JT79kQIPR-LjFm-BgBycBw4eEFYb8z7iXA-zqgQz4ajZXlIljJtJUBbTupbnzEiBKjEFnTxYqb-vUm-TDwTMPaYzBxqqfOrrvKlw
FAQs
Zero dependency JWT encoding/decoding for Node
The npm package @connectedcars/jwtutils receives a total of 187 weekly downloads. As such, @connectedcars/jwtutils popularity was classified as not popular.
We found that @connectedcars/jwtutils demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 13 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Product
Socket now supports four distinct alert actions instead of the previous two, and alert triaging allows users to override the actions taken for all individual alerts.
Security News
Polyfill.io has been serving malware for months via its CDN, after the project's open source maintainer sold the service to a company based in China.
Security News
OpenSSF is warning open source maintainers to stay vigilant against reputation farming on GitHub, where users artificially inflate their status by manipulating interactions on closed issues and PRs.