Name
Title | ||
|---|---|---|
Password-Authenticated Group Key Agreement with Adaptive Security and Contributiveness |
Abstract | ||
|---|---|---|
Adaptively-secure key exchange allows the establishment of secure channels even in the presence of an adversary that can corrupt parties adaptively and obtain their internal states. In this paper, we give a formal definition of contributory protocols and define an ideal functionality for password-based group key exchange with explicit authentication and contributiveness in the UC framework. As with previous definitions in the same framework, our definitions do not assume any particular distribution on passwords or independence between passwords of different parties. We also provide the first steps toward realizing this functionality in the above strong adaptive setting by analyzing an efficient existing protocol and showing that it realizes the ideal functionality in the random-oracle and ideal-cipher models based on the CDH assumption. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1007/978-3-642-02384-2_16 | AFRICACRYPT |
Keywords | Field | DocType |
different party,uc framework,adaptively-secure key exchange,cdh assumption,password-based group key exchange,corrupt parties adaptively,efficient existing protocol,adaptive security,ideal functionality,explicit authentication,contributory protocol,password-authenticated group key agreement,password authentication,key exchange,random oracle | Key distribution,Group key,Zero-knowledge password proof,Key exchange,Computer security,Computer science,Password policy,Password,Key-agreement protocol,Encrypted key exchange | Conference |
Volume | ISSN | Citations |
5580 | 0302-9743 | 8 |
PageRank | References | Authors |
0.44 | 39 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Michel Abdalla | 1 | 1660 | 76.80 |
| Dario Catalano | 2 | 1402 | 73.17 |
| Céline Chevalier | 3 | 225 | 15.82 |
| David Pointcheval | 4 | 781 | 33.25 |