Efficient ID-based Rabin Signature without Pairings
Chaoyang Li, Xiangjun Xin, Xiaolin Hua · International Journal of Multimedia and Ubiquitous Engineering · 2017
ID-based signatures can greatly simplify the key management procedures of certificate-based public key infrastructures.In this paper, based on Rabin's cryptosystem, an efficient ID-based signature scheme without pairings is proposed.In our scheme, the hash value of the user's identity is used as his/her public key, while its square root is used as the user's secret key.During either the signing phase or the verification phase of the proposed scheme, only one exponential operation under modular is used.Then, compared with the similar schemes of this kind, our scheme is more efficient.On the other hand, our scheme can be proved to be secure against existential forgery under adaptively chosen identity and message attacks in the random oracle model.