Title :
Improved unidirectional chosen-ciphertext secure proxy re-encryption
Author :
Guoan, Zhao ; Liming, Fang ; Jiandong, Wang ; Chunpeng, Ge ; Yongjun, Ren
Author_Institution :
Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
At PKC´08, Libert and Vergnaud presented the first construction of unidirectional proxy re-encryption scheme with chosen-ciphertext security in the standard model. The limitation of their scheme is using one time signature. In this paper, an improved unidirectional chosen-ciphertext secure proxy re-encryption scheme is proposed. Our construction is more efficient than Libert and Vergnaud´s scheme by avoiding one time signature.
Keywords :
Cryptography; Identity-based encryption; Information security; Public key; pairing based cryptography; proxy re-encryption; standard model;
Conference_Titel :
Wireless Communications, Networking and Information Security (WCNIS), 2010 IEEE International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
978-1-4244-5850-9
DOI :
10.1109/WCINS.2010.5541824
