Salts

Your Kerberos key is derived from your password. To ensure that people who happen to pick the same password do not have the same key, Kerberos 5 incorporates more information into the key using something called a salt. The supported values for salts are as follows.

normal

default for Kerberos Version 5

v4

the only type used by Kerberos Version 4, no salt

norealm

same as the default, without using realm information

onlyrealm

uses only realm information as the salt

afs3

AFS version 3, only used for compatibility with Kerberos 4 in AFS

special

only used in very special cases; not fully supported