BPGSC: Bilinear Paring Based Genearlized SignCryption Scheme

Author

Han, Yiliang ; Gui, Xiaolin

Author_Institution

Dept. of Comput. Sci. & Technol., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2009

Firstpage

76

Lastpage

82

Abstract

Generalized signcryption is a novel cryptographic primitive, which provides encryption and authenticity services simultaneously or separately. The known schemes have the low communication performance and fail to deliver data stream. Based on bilinear pairing, an efficient generalized signcryption scheme with the shortened ciphertext called BPGSC is proposed. Combined with the hash-chained mechanism and KEM/DEM (key encapsulation mechanism/data encapsulation mechanism), the hybrid BPGSC is proposed also. Formal security analysis showed that BPGSC is a provable secure scheme in random oracle model under GDH (Gap Diffie-Hellman) assumption. With present secure parameters, the data rate of proposed scheme is 76%. It has the highest communication performance in all of known schemes.

Keywords

cryptography; data encapsulation; digital signatures; authenticity service; bilinear paring; cryptographic primitive; data encapsulation mechanism; encryption; generalized signcryption scheme; hash-chained mechanism; key encapsulation mechanism; shortened ciphertext; Algorithms; Computer science; Data encapsulation; Data security; Digital signatures; Elliptic curve cryptography; Elliptic curves; Identity-based encryption; Public key; Public key cryptography; bilinear paring; digital signature; generalized signcryption; signcryption;

fLanguage

English

Publisher

ieee

Conference_Titel

Grid and Cooperative Computing, 2009. GCC '09. Eighth International Conference on

Conference_Location

Lanzhou, Gansu

Print_ISBN

978-0-7695-3766-5

Type

conf

DOI

10.1109/GCC.2009.69

Filename

5280111