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