does eCryptfs support multiple users?

Posted by new to eCryptfs on Ask Ubuntu See other posts from Ask Ubuntu or by new to eCryptfs
Published on 2012-12-17T08:14:40Z Indexed on 2012/12/17 11:13 UTC
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ecryptfs

I'm new to ecryptfs and I need some clarification on how it works.
Suppose there are two root users userA and userB, If I mount some folder under userA:
[userA@Dev] $ mount ecryptfs real img
now I can visit the img folder to access decrypted data.

My questions is:
While userA is still in log in state. Can userB login and access the decrypted data? This is currently what I observed on my local machine, but I'm not sure if it was cause by my misconfiguration. If it is the case, how can I avoid other users from accessing the decrypted data while userA is in login state?

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