Improvement on Meshram et al.'s ID-based cryptographic mechanism

Authors:
Liaojun Pang;Huixian Li;Qingqi Pei;Yumin Wang
Affiliations:
School of Life Science and Technology, Xidian University, Xian 710071, China and Department of Computer Science, Wayne State University, Detroit, MI 48202, USA;Department of Computer Science, Wayne State University, Detroit, MI 48202, USA and School of Computer Science and Engineering, Northwestern Polytechnical University, Xian 710072, China;State Key Lab. of Integrated Service Networks, Xidian University, Xian 710071, China;State Key Lab. of Integrated Service Networks, Xidian University, Xian 710071, China
Venue:
Information Processing Letters
Year:
2013

Citing 4
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An ID-based cryptographic mechanisms based on GDLP and IFP

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Abstract

Meshram et al. proposed an ID-based cryptosystem based on the generalized discrete logarithm problem (GDLP) and the integer factorization problem (IFP) in 2012, and their contribution lies in that they firstly proposed an idea to construct the ID-based cryptosystem without using the bilinear pair. This scheme can achieve the security goal of protecting data and prevent the adversary from snooping the encrypted data or the user@?s private key. However, our analyses show that their scheme is still incorrect and has a deadlock problem, because the user cannot carry out the encryption process as expected because it is required for the user to own the key authentication center@?s private information which is designed to be secret to users. A solution to the deadlock problem is given and an improved scheme is proposed.