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・ Cookie Buffet
・ Cookie butter
・ Cookie cake
・ Cookie Cake Pie
・ Cookie Clicker
・ Cookie Crew
・ Cookie Crisp
・ Cookie Cuccurullo
・ Cookie Cunningham
・ Cookie cutter
・ Cookie Cutter (Jim Bianco album)
・ Cookie decorating
・ Cookie diet
・ Cookie dough
・ Cookie Duster
Cookie exchange
・ Cookie Gilchrist
・ Cookie jar
・ Cookie jar (disambiguation)
・ Cookie Jar (song)
・ Cookie jar accounting
・ Cookie Jar Butte
・ Cookie Jar Group
・ Cookie Jar Kids Network
・ Cookie Jar Toons
・ Cookie Jar TV
・ Cookie Lavagetto
・ Cookie Lyon
・ Cookie Marenco
・ Cookie Monster


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Cookie exchange : ウィキペディア英語版
Cookie exchange

The cookie exchange in IPsec comes under the Oakley protocol, which is a protocol of key management. The cookie exchange requires that each side send a pseudorandom number, the cookie, in the initial message, which the other side acknowledges. This acknowledgement must be repeated in the first message of the Diffie-Hellman key exchange. If the source address was forged, the opponent gets no answer. Thus, an opponent can only force a user to generate acknowledgements and not to perform the Diffie-Hellman calculation. Note that "cookies" in the sense of IPsec are unrelated to HTTP cookies used by web browsers.
The recommended method for creating the cookie is to perform a fast hash (e.g. MD5) over the IP source and destination addresses, the UDP source and destination ports, and a locally generated secret value.



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Cookie exchange」の詳細全文を読む



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