CRYPTO: Do not call NSS_Shutdown after every operation Calling setup and teardown on every encryption cases issues like the one described in https://bugzilla.redhat.com/show_bug.cgi?id=1456151 eventually. Similarly to other crypto functions, don't tear down NSS by calling NSS_Shutdown. Let the OS reclaim the resources. Resolves: https://pagure.io/SSSD/sssd/issue/3424 Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

Secrets: Add encryption at rest Generates a master key file if it doesn't exist and encrypts secrets using the master key contained in the file. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>