oidc-token-hash/lib/shake256.js

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

const crypto = require('crypto');

const [major, minor] = process.version.substring(1).split('.').map((x) => parseInt(x, 10));
const xofOutputLength = major > 12 || (major === 12 && minor >= 8);
const shake256 = xofOutputLength && crypto.getHashes().includes('shake256');

module.exports = shake256;