challenge and reply authentication

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• Challenge–response spam filtering — This article is about e mail. For other uses, see Challenge response authentication. A challenge–response (or C/R) system is a type of spam filter that automatically sends a reply with a challenge to the (alleged) sender of an incoming e mail. In …   Wikipedia

• Challenge-response spam filtering — A Challenge response (or C/R) system is a type of spam filter that automatically sends a reply with a challenge to the (alleged) sender of an incoming e mail. In this reply, the sender is asked to perform some action to assure delivery of the… …   Wikipedia

• Extensible Authentication Protocol — Extensible Authentication Protocol, or EAP, is a universal authentication framework frequently used in wireless networks and Point to Point connections. It is defined in RFC 3748, which has been updated by RFC 5247. Although the EAP protocol is… …   Wikipedia

• Iran and weapons of mass destruction — This article is about Iran and weapons of mass destruction. For Iran s nuclear power program, see Nuclear program of Iran. Weapons of mass destruction …   Wikipedia

• Password — For other uses, see Password (disambiguation). A password is a secret word or string of characters that is used for authentication, to prove identity or gain access to a resource (example: an access code is a type of password). The password… …   Wikipedia

• PHILOSOPHY, JEWISH — This article is arranged according to the following outline: WHAT IS JEWISH PHILOSOPHY? recent histories of jewish philosophy biblical and rabbinic antecedents bible rabbinic literature hellenistic jewish philosophy philo of alexandria biblical… …   Encyclopedia of Judaism

• Nanking Massacre denial — Nanking Massacrev · d · e Battl …   Wikipedia

• MOSES — (Heb. מֹשֶׁה; LXX, Mōusēs; Vulg. Moyses), leader, prophet, and lawgiver (set in modern chronology in the first half of the 13th century B.C.E.). Commissioned to take the Israelites out of Egypt, Moses led them from his 80th year to his death at… …   Encyclopedia of Judaism

• Anti-spam techniques — To prevent e mail spam (aka unsolicited bulk email), both end users and administrators of e mail systems use various anti spam techniques. Some of these techniques have been embedded in products, services and software to ease the burden on users… …   Wikipedia

• Identification friend or foe — An IFF Test Set used for testing transponders on aircraft …   Wikipedia

• Anti-spam techniques (e-mail) — To prevent e mail spam, both end users and administrators of e mail systems use various anti spam techniques. Some of these techniques have been embedded in products, services and software to ease the burden on users and administrators. No one… …   Wikipedia