Symmetry | |
Two-Round Password-Only Authenticated Key Exchange in the Three-Party Setting | |
Junghyun Nam3  Kim-Kwang Raymond Choo1  Sangchul Han3  Juryon Paik2  Dongho Won2  | |
[1] Information Assurance Research Group, Advanced Computing Research Centre, University of South Australia, Mawson Lakes, SA-5095, |
|
关键词: password-only authenticated key exchange (PAKE); three-party key exchange; symmetric encryption; communication round; dictionary attack; implicit key authentication; | |
DOI : 10.3390/sym7010105 | |
来源: mdpi | |
【 摘 要 】
We present the first provably-secure three-party password-only authenticated key exchange (PAKE) protocol that can run in only two communication rounds. Our protocol is generic in the sense that it can be constructed from any two-party PAKE protocol. The protocol is proven secure in a variant of the widely-accepted model of Bellare, Pointcheval and Rogaway (2000) without any idealized assumptions on the cryptographic primitives used. We also investigate the security of the two-round, three-party PAKE protocol of Wang, Hu and Li (2010) and demonstrate that this protocol cannot achieve implicit key authentication in the presence of an active adversary.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202003190016907ZK.pdf | 357KB | download |