An Efficient Forward-Secure Proxy-Protected Signature Scheme Based on the Strong RSA Assumption
A proxy signature scheme is an important extension of the digital signature scheme, nowadays, is an active research topic, which attracts more researchers attentions. As an ordinary digital signature scheme, a proxy signature is a vulnerable to the key exposure problem. In case, the secret signing key of the authorized user is be revealed or stolen. The aim of this paper is to put forth a proxy signature scheme, which has forward secrecy technique to mitigate the damage caused by the key exposure problem, which is proved secure. In this paper, the definition and security model of a forward-secure proxy signature scheme is formalized. Then, a generic forward-secure proxy-protected signature scheme is proposed based on the strong RSA assumption. By the reduction proof technique, the proposed scheme is proved secure against existential forgery adaptive chosen message attacks.
Cryptography Proxy signature proxy-protected signature forward security strong RSA assumption.
Akram A.M.Naji Yahya Abu Hasan
School of Mathematical Science Universiti Sanis Malaysi a11700, Pulau Pinang, Malaysia School of Mathematical Science Universiti Sanis Malaysia 11700, Pulau Pinang, Malaysia
国际会议
成都
英文
259-264
2010-07-07（万方平台首次上网日期，不代表论文的发表时间）