Provably secure authenticated group Diffie-Hellman key exchange
نویسندگان
چکیده
منابع مشابه
Provably Secure Password-Authenticated Key Exchange Using Diffie-Hellman
When designing password-authenticated key exchange protocols (as opposed to key exchange protocols authenticated using cryptographically secure keys), one must not allow any information to be leaked that would allow verification of the password (a weak shared key), since an attacker who obtains this information may be able to run an off-line dictionary attack to determine the correct password. ...
متن کاملProvably Authenticated Group Diffie-Hellman Key Exchange - The Dynamic Case
Dynamic group Diffie-Hellman protocols for Authenticated Key Exchange (AKE) are designed to work in a scenario in which the group membership is not known in advance but where parties may join and may also leave the multicast group at any given time. While several schemes have been proposed to deal with this scenario no formal treatment for this cryptographic problem has ever been suggested. In ...
متن کاملProvably Authenticated Group Diie-hellman Key Exchange
Group Diie-Hellman protocols for Authenticated Key Exchange (AKE) are designed to provide a pool of players with a shared secret key which may later be used, for example, to achieve multicast message integrity. Over the years, several schemes have been ooered. However, no formal treatment for this cryptographic problem has ever been suggested. In this paper, we present a security model for this...
متن کاملProvably Secure Password-authenticated Key Exchange Using Diie-hellman
When designing password-authenticated key exchange protocols (as opposed to key exchange protocols authenticated using cryptographically secure keys), one must not allow any information to be leaked that would allow veriication of the password (a weak shared key), since an attacker who obtains this information may be able to run an oo-line dictionary attack to determine the correct password. We...
متن کاملTwo Formal Views of Authenticated Group Diffie-Hellman Key Exchange
With the advance of multicast communication infrastructures several works address the task of sharing a session key among a group of users. Some of theses works extend the Diffie-Hellman protocol to the multi-party setting but can not by lack of adequate formal models provide stringent arguments to support the security of their protocols. Fortunately, formal models and formal treatments have re...
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ژورنال
عنوان ژورنال: ACM Transactions on Information and System Security
سال: 2007
ISSN: 1094-9224,1557-7406
DOI: 10.1145/1266977.1266979