@simplewebauthn/server
Version:
SimpleWebAuthn for Servers
33 lines (32 loc) • 1.34 kB
JavaScript
import { COSEKEYS, isCOSECrv, isCOSEPublicKeyEC2, isCOSEPublicKeyOKP, isCOSEPublicKeyRSA, } from '../../cose.js';
import { verifyEC2 } from './verifyEC2.js';
import { verifyRSA } from './verifyRSA.js';
import { verifyOKP } from './verifyOKP.js';
import { unwrapEC2Signature } from './unwrapEC2Signature.js';
/**
* Verify signatures with their public key. Supports EC2 and RSA public keys.
*/
export function verify(opts) {
const { cosePublicKey, signature, data, shaHashOverride } = opts;
if (isCOSEPublicKeyEC2(cosePublicKey)) {
const crv = cosePublicKey.get(COSEKEYS.crv);
if (!isCOSECrv(crv)) {
throw new Error(`unknown COSE curve ${crv}`);
}
const unwrappedSignature = unwrapEC2Signature(signature, crv);
return verifyEC2({
cosePublicKey,
signature: unwrappedSignature,
data,
shaHashOverride,
});
}
else if (isCOSEPublicKeyRSA(cosePublicKey)) {
return verifyRSA({ cosePublicKey, signature, data, shaHashOverride });
}
else if (isCOSEPublicKeyOKP(cosePublicKey)) {
return verifyOKP({ cosePublicKey, signature, data });
}
const kty = cosePublicKey.get(COSEKEYS.kty);
throw new Error(`Signature verification with public key of kty ${kty} is not supported by this method`);
}