Sciweavers

391 search results - page 66 / 79
» On-Line Secret Sharing
Sort
View
OZCHI
2006
ACM
14 years 1 months ago
Question-based group authentication
There are various situations where a distinction needs to be made between group members and outsiders. For example, to protect students in chat groups from unpleasant incidents ca...
Ann Nosseir, Richard C. H. Connor, Karen Renaud
CTRSA
2005
Springer
72views Cryptology» more  CTRSA 2005»
14 years 1 months ago
Proofs for Two-Server Password Authentication
Traditional password-based authentication and key-exchange protocols suffer from the simple fact that a single server stores the sensitive user password. In practice, when such a ...
Michael Szydlo, Burton S. Kaliski Jr.
EUROPKI
2005
Springer
14 years 1 months ago
A Multipurpose Delegation Proxy for WWW Credentials
Credentials like passwords or cryptographic key pairs are a means to prove one’s identity to a web server. A practical problem in this context is the question of how a user can t...
Tobias Straub, Thilo-Alexander Ginkel, Johannes Bu...
ICICS
2005
Springer
14 years 1 months ago
Secure Multicast Using Proxy Encryption
In a secure multicast communication environment, only valid members belong to the multicast group could decrypt the data. In many previous researches, there is one “group key” ...
Yun-Peng Chiu, Chin-Laung Lei, Chun-Ying Huang
ISPEC
2005
Springer
14 years 1 months ago
On the Security of Some Nonrepudiable Threshold Proxy Signature Schemes
A (t, n) threshold proxy signature scheme enables an original signer to delegate the signature authority to a proxy group of n member such that t or more than t proxy signers can ...
Zuowen Tan, Zhuojun Liu, Wang Mingsheng