It is not encrypted, so, anyone could recover the information from the contents.
It is not encrypted, so, anyone could recover the information from the contents.
But it's signed. So, when you receive a token that you originally issued, you can verify that it actually came from you and has not been tampered with in-transit.
But it's signed. So, when you receive a token that you issued, you can verify that it was you who issued it.
That way, you can create a token with an expiration of, let's say, 1 week. And then when the user comes back the next day with the token, you know that user is still logged in to your system.
That way, you can create a token with an expiration of, let's say, 1 week. And then when the user comes back the next day with the token, you know that user is still logged in to your system.