Without further ado, the following was found: Issue: PAM → B<PAM>(7) "The session keyring is a keyring used to anchor keys on behalf of a " "process. It is typically created by B<pam_keyinit>(8) when a user logs in " "and a link will be added that refers to the B<user-keyring>(7). Optionally, " "PAM may revoke the session keyring on logout. (In typical configurations, " "PAM does do this revocation.) The session keyring has the name " "(description) I<_ses>."