getValidation method
Fetch/cache the key, verify attestationJwt, and return its status against
the peer's declared origin.
Implementation
Future<WcVerifyStatus> getValidation(
String attestationJwt, {
required String origin,
int? nowSeconds,
}) async {
final key = await publicKey(nowSeconds: nowSeconds);
return WcVerify.validate(attestationJwt,
qx: key.qx, qy: key.qy, origin: origin);
}