A Novel Hybrid Encryption Scheme against Adaptive Chosen Ciphertext Attack

Author

Qi, Zhifeng ; Qing, Sihan ; Yang, Yixian ; Cheng, Guanghui

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing

fYear

2007

fDate

15-19 Dec. 2007

Firstpage

811

Lastpage

814

Abstract

Many efficient CCA2-secure hybrid encryption schemes have been proposed, but their securities are based on too strong assumptions. It would be preferable to base a security proof on a weaker assumption, so we describe a practical hybrid encryption scheme based on the weaker LDDH assumption, and in the standard model prove to be CCA2-secure if the LDDH assumption is true.

Keywords

cryptography; CCA2-secure hybrid encryption schemes; adaptive chosen ciphertext attack; chosen ciphertext attack; encryption scheme; security proof; Computational intelligence; Information security; Laboratories; Public key; Public key cryptography; Read only memory; Standards development; Telecommunication switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Security Workshops, 2007. CISW 2007. International Conference on

Conference_Location

Harbin

Print_ISBN

978-0-7695-3073-4

Type

conf

DOI

10.1109/CISW.2007.4425619

Filename

4425619

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2705994