oidc-token-hash

oidc-token-hash

oidc-token-hash validates (and generates) ID Token _hash claims such as at_hash or c_hash.

Usage

Validating

const oidcTokenHash = require('oidc-token-hash');

const at_hash = 'x7vk7f6BvQj0jQHYFIk4ag';
const access_token = 'YmJiZTAwYmYtMzgyOC00NzhkLTkyOTItNjJjNDM3MGYzOWIy9sFhvH8K_x8UIHj1osisS57f5DduL-ar_qw5jl3lthwpMjm283aVMQXDmoqqqydDSqJfbhptzw8rUVwkuQbolw';

oidcTokenHash(at_hash, access_token, 'RS256'); // => true
oidcTokenHash(at_hash, 'foobar', 'RS256'); // => false
oidcTokenHash.valid('foobar', access_token, 'RS256'); // => false

Generating

// access_token from first example
oidcTokenHash.generate(access_token, 'RS256'); // => 'x7vk7f6BvQj0jQHYFIk4ag'
oidcTokenHash.generate(access_token, 'HS384'); // => 'ups_76_7CCye_J1WIyGHKVG7AAs2olYm'
oidcTokenHash.generate(access_token, 'ES512'); // => 'EGEAhGYyfuwDaVTifvrWSoD5MSy_5hZPy6I7Vm-7pTQ'

Changelog

• 2.0.0 - rather then assuming the alg based on the hash length #valid() now requires a third argument with the JOSE header alg value, resulting in strict validation
• 1.0.0 - initial release