Encrypted user home dirs with NFS/SMB/local (ssh and true local) access without additional passwords — is it possible?

[Lev Serebryakov]

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 I want to encrypt home dirs on multiuser server.

 Some users use it with "ssh", other users mount home dirs to Windows
with samba (3.x, but I could migrate to 4.x) and never login with
ssh/locally, some home dirs are mounted to other FreeBSD system via NFS.

 So, overlay FS with per-file encryption is not a solution, as
SMB-only users could not call "mount" and enter password.

 full-disk encryption is not a solution too, as "root" could read all
files in such case, as here is no encryption at all.

 Is it possible at all?

- -- 
// Lev Serebryakov
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