Save revocation file as only readable and writeable as user (600 permission)
The revocation file stored in the account storage (Account storage support: authentication, revoca... (#477)) is readable by everyone on the system, and can therefore be sent by anyone who has access to this file to revoke the corresponding identity.
In the same vein as Rework authentication file path (#420 - closed) for the authentication files, let’s save the revocation file with 600 permissions (read and write for the user).
Edited by Moul