{{set . "title" "Expired and Not Yet Valid JWTs"}}
{{template "header.html" .}}

<h1>Expired and Not Yet Valid JWTs</h1>

<p>
	If you check the <a href="https://tools.ietf.org/html/rfc7519#section-4.1">Registered Claim Names</a> section of the JSON Web Token RFC</a>, there are two time based claims, "exp" (Expiration Time) and "nbf" (Not Before)
</p>

<p>
	The challenge here is not a difficult one, decode the following two JWTs and check their "exp" and "nbf" claims, decide whether they should be accepted o