Title :
Cryptanalysis of efficient threshold proxy signature protocol for mobile agents
Author :
Cai, Xiao-Qiu ; Wang, Shu-Yu
Author_Institution :
Sch. of Math. Sci., Luoyang Normal Univ., Luoyang, China
Abstract :
An efficient threshold proxy signature protocol for mobile agents based on RSA cryptosystem [Information Sciences 179 (2009) 4243-4248] was proposed. We analyze its security and show that the original signer can generate a valid proxy signature by himself. In addition, nobody can discriminate the identities of the actual proxy signers. Therefore, this protocol does not satisfy the properties of unforgeability and identifiability for proxy signature.
Keywords :
cryptographic protocols; digital signatures; public key cryptography; RSA cryptosystem; efficient threshold proxy signature protocol; identifiability; mobile agents; unforgeability; Computers; Cryptography; Electrical engineering; Mobile agents; Nickel; Protocols; RSA; proxy signature; threshold; unforgeability;
Conference_Titel :
Computer Science and Automation Engineering (CSAE), 2011 IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-8727-1
DOI :
10.1109/CSAE.2011.5953319
