We want to shared authentication between an Episerver site and another ASP.NET site. Shared authentication saves time and reduce issues for users that have to use multiple sites and systems. Way to achieve the same is to have the same machine key for all sites (Episerver site and asp.net site). Does EPiserver team provides facility to change the machine key in Azure environment.
The machine key is set by Azure and cannot be changed by default.
If you want to share authentication between sites you may wish to consider using a federated authentication provider.