Cryptographic issues on environements with basic auth

[Frost117]

Issue description

Throughout the Cloud history there have been rare cases where we are seeing users getting the following issue:

Workaround: The workaround for the above issue, is to clear your cookies and the cache.

The above issue seems to happen randomly, however I have a hypothesis on how to reproduce the issue.

Prerequisite to reproduce: You'll need a VPN. At least 2 browser. And a Cloud project that has Basic Auth enabled.

The theory goes like this: When you log in via the basic auth to the set you'll receive some cookies. One of them is called: UaaSSecurity.

This cookie is tied to the ip adress when it was first set.

Therefore, when you log in with the same user but using a different IP you'll get a new cookie. Here is where the issue happens.

If you log in with a new IP adress but a new cookie is not assigned for w/e reason, you'll get the Cryptographic error.

Using the above method - I was only able to reproduce this once. Since then I have not been able to reproduce the issue, but it still happens for other projects on Umbraco Cloud.

Posting this issue to open a thread where users can input their experience and if any have had any luck with reproducing or have implemented a different work around than the clearing cache method.