The libdefaults section may contain any of the following relations:
**allow_weak_crypto**
- If this flag is set to false, then weak encryption types will be
- filtered out of the previous three lists (as noted in
- :ref:`Encryption_and_salt_types` in :ref:`kdc.conf(5)`). The
- default value for this tag is false, which may cause
- authentication failures in existing Kerberos infrastructures that
- do not support strong crypto. Users in affected environments
+ If this flag is set to false, then weak encryption types (as noted in
+ :ref:`Encryption_and_salt_types` in :ref:`kdc.conf(5)`) will be filtered
+ out of the lists **default_tgs_enctypes**, **default_tkt_enctypes**, and
+ **permitted_enctypes**. The default value for this tag is false, which
+ may cause authentication failures in existing Kerberos infrastructures
+ that do not support strong crypto. Users in affected environments
should set this tag to true until their infrastructure adopts
stronger ciphers.