Recently, an efficient obfuscator of indistinguishability obfuscation was constructed by Grag et al, and it is considered as a powerful cryptographic primitive. In this paper, we propose forward secure non-interactive key exchange from indistinguishability obfuscation. A non-interactive key exchange provides an efficiency of overall system, because there are no interactions between users for key exchange. Forward security is important security requirement, because it mitigates damage when user's private key is revealed. In 2014, Pointcheval and Sanders proposed the first forward secure non- interactive key exchange scheme from multilinear map. In their scheme, there is a lifetime of a system and the lifetime is divided into time period. A user updates its private key according to time period, so the scheme has limits in the number of updates of private key. To make it free from limits of the number of updates, we design forward secure non-interactive key exchange scheme from indistinguishability obfuscation. In our scheme, there is no limits in the number of updates of private key.
|Title of host publication||2015 5th International Conference on IT Convergence and Security, ICITCS 2015 - Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2015 Oct 5|
|Event||5th International Conference on IT Convergence and Security, ICITCS 2015 - Kuala Lumpur, Malaysia|
Duration: 2015 Aug 24 → 2015 Aug 27
|Name||2015 5th International Conference on IT Convergence and Security, ICITCS 2015 - Proceedings|
|Other||5th International Conference on IT Convergence and Security, ICITCS 2015|
|Period||15/8/24 → 15/8/27|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MEST) (No. 2010-0029121).
© 2015 IEEE.
- Public key
- Radio frequency
ASJC Scopus subject areas
- Computer Networks and Communications
- Signal Processing