Abstract:

After Bellare and Miner introduced a forward-secure digital signature scheme, some related schemes were proposed. Due to the various applications of t he bilinear pairings in cryptography, there have been many pairing-based signature schemes. In this paper, we describe a forward-secure signature scheme  from a paring-based short signature scheme using bilinear pairings. It is an unforgeable forward secure scheme based on the computational Diffie-Hellma n Assumption in the random oracle model.

Key words: （forward-secure, digital signature, bilinear pairings）