fscrypt PAM module

[josephlr]

This commit closes #4 by adding in pam_fscrypt. See the updated documentation for more information.

[ghost]

There is https://github.com/neithernut/pam_e4crypt available. You can look if there something interesting code to borrow.

[josephlr]

Thanks for bringing this up! We definitely saw this, but couldn't actually use any of the code (due to GPLv2 vs Apache license compatibility). There is also the issue that e4crypt is basically going away in favor of a simpler tool like fscryptctl that is not just aimed toward one filesystem.