Eicon Networks S92 Bedienungsanleitung PDF herunterladen (Seite 122)

YuChakTinMichael‘sGIACGCFWProjectAssignment

Page 122

serverfortheremoteusersaccordingly.

SincetheexternalpartnersandsuppliersareusingmostlyWindowsbasedclients,

MSCHAPandMSCHAPV2areselectedastheauthenticationprotocols. According

toChapter14,Lesson2oftheMicrosoftPressMCSETrainingKit—Microsoft

Windows2000NetworkInfrastructureAdministration,

“MSCHAPisavariantofCHAPthatdoesnotrequireaplaintextversionofthe

passwordontheauthenticatingserver.MSCHAPpasswordsarestoredmoresecurely

attheserverbuthavethesamevulnerabilitiestodictionaryandbruteforceattacksas

CHAP.InMSCHAPthechallengeresponseiscalculatedwitha MessageDigest4

(MD4)hashedversionofthepasswordandthenetworkaccessserver(NAS)

challenge.”

25

http://www.amazon.com/exec/obidos/ASIN/0735613885/qid=1018719524/sr=11/ref=sr_1_1/104955

75700347903

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Eicon Networks S92 Bedienungsanleitung Seite 122