self-cert

This is a simple library for generating a self-signed x509 keypair and certificate. I looked at selfsigned before writing this library, but it didn't seem to be well maintained and had a hard dependency on an outdated version of node-forge. This library also depends on node-forge, but it does so with semver qualifiers such that newer versions can be specified by the library user.

The keys and certs generated by this library are configured for usage in any scenario. Also, the certificate Subject Alternate Names (SANs) are populated with the IP addresses of the present network interfaces as returned by os.networkInterfaces().

Example

const selfCert = require('self-cert')
const certDetails = selfCert({
  attrs: {
    stateName: 'Georgia',
    locality: 'Atlanta',
    orgName: 'Acme Widgets',
    shortName: 'widget42'
  },
  expires: new Date('2030-12-31')
})

/* certDetails = {
  privateKey: 'pem formatted string',
  publicKey: 'pem formatted string',
  certificate: 'pem formatted string'
} */

Options

{
  attrs: {
    commonName: '', // Default: os.hostname()
    countryName: '', // Default: 'US'
    stateName: '', // Default: 'Georgia'
    locality: '', // Default: 'Atlanta'
    orgName: '', // Default: 'None'
    shortName: '' // Default: 'example'
  },
  bits: 2048, // Default: 2048
  expires: new Date(), // Default: 5 years
  logger: {}
}

Notes:

• commonName is used for the first SAN.
• stateName maps to stateOrProvinceName.
• logger should be a Log4j compliant logger; Pino is recommended. This library logs some progress messages at the debug level. The default is a null logger.

CLI

This module may also be installed globally as a CLI tool:

$ npm install -g self-cert
$ self-cert generate --help

License

MIT License