/var/www/greso.tech/server/nsm/node_modules/jwks-rsa/src
Edit: /var/www/greso.tech/server/nsm/node_modules/jwks-rsa/src/utils.js (1202B)
const jose = require('jose');
const crypto = require('crypto');
async function retrieveSigningKeys(jwks) {
const results = [];
jwks = jwks
.filter(({ use }) => use === 'sig' || use === undefined)
.filter(({ kty }) => kty === 'RSA' || kty === 'EC' || kty === 'OKP');
for (const jwk of jwks) {
try {
// The algorithm is actually not used in the Node.js KeyObject-based runtime
// passing an arbitrary value here and checking that KeyObject was returned
// later
const keyObject = await jose.importJWK(jwk, 'RS256');
if (!(keyObject instanceof crypto.KeyObject) || keyObject.type !== 'public') {
continue;
}
const getSpki = () => keyObject.export({ format: 'pem', type: 'spki' });
results.push({
get publicKey() { return getSpki(); },
get rsaPublicKey() { return getSpki(); },
getPublicKey() { return getSpki(); },
...(typeof jwk.kid === 'string' && jwk.kid ? { kid: jwk.kid } : undefined),
...(typeof jwk.alg === 'string' && jwk.alg ? { alg: jwk.alg } : undefined)
});
} catch (err) {
continue;
}
}
return results;
}
module.exports = {
retrieveSigningKeys
};