request with credentials stored in database. Authentication usually
deals with password encryption. PAP, CHAP, MS-CHAP are authentication
modules. Few modules act as both authorization and authentication.
-For example, the MS-CHAP module is normally authentication one, but it
+For example, the MS-CHAP module is normally authentication only, but it
may be used during authorization to verify that request contains
MS-CHAP related attribute and only in this case perform MS-CHAP based
authentication. LDAP is normally an authorization module, but it may