Title :
Cryptanalysis of Efficient Identity Based Signature/Signcryption Schemes in the Standard Model
Author :
Wang, Xu An ; Zhong, Weidong ; Luo, Haining
Author_Institution :
Key Lab. of Inf. & Network Security, Eng. Coll. of Chinese Armed Police Force, Xi´´an, China
Abstract :
Efficient identity based signature/signcryption in the standard model with full security has been pursued for a long time. At ISDPE´07, Ren and Gu claimed to construct efficient identity based signature/signcryption schemes with full security in the standard model. They claimed their schemes have short public parameters, high efficiency and a tight reduction. But in this paper we give attacks to their schemes to show their schemes are not secure.
Keywords :
cryptography; digital signatures; cryptanalysis; identity based signature schemes; identity based signcryption schemes; Elliptic curve cryptography; Encryption; Games; Generators; Identity based signature/signcryption; attack; standard model;
Conference_Titel :
Intelligence Information Processing and Trusted Computing (IPTC), 2010 International Symposium on
Conference_Location :
Huanggang
Print_ISBN :
978-1-4244-8148-4
Electronic_ISBN :
978-0-7695-4196-9
DOI :
10.1109/IPTC.2010.111
