Attribute Set Based Signature Secure in the Standard Model
Baohong Li, Yinliang Zhao, Hongping Zhao · KSII Transactions on Internet and Information Systems · 2015
We introduce attribute set based signature (ASBS), a new cryptographic primitive which organizes user attributes into a recursive set based structure such that dynamic constraints can be imposed on how those attributes may be combined to satisfy a signing policy.Compared with attribute based signature (ABS), ASBS is more flexible and efficient in managing user attributes and specifying signing policies.We present a practical construction of ASBS and prove its security in the standard model under three subgroup decision related assumptions.Its efficiency is comparable to that of the most efficient ABS scheme.