Improved Unidirectional Chosen-Ciphertext Secure Proxy Re-encryption
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.
proxy re-encryption pairing based cryptography standard model
Zhao Guoan Fang Liming Wang Jiandong Ge Chunpeng Ren Yongjun
Nanjing University of Aeronautics and Astronautics, Nanjing Nanjing University of Aeronautics and Astronautics
国际会议
北京
英文
1-5
2010-06-25(万方平台首次上网日期,不代表论文的发表时间)