I forgot: I agree with JJJ, it is possible, indeed, that the certificate rendered ineffective by sinking a level. Djpaul thank you, anyway, I do not pretend to require the resolution of my problem, I agree that you care about other priorities. However, it is useful to allow non-English speakers (or not Anglophile) to deepen their knowledge of this extension is due.
Thank you all.
Namaste JJJ, I received the address of BuddyPress forum in response to the same question on the Codex … and translated by Google (while trying to be aware of nonsense or against the grain, which implies to know a little English). Anyway, I never paid attention to this aspect of security, particularly because of its complexity, my priorities are elsewhere!
Thanks for responding.