Attribute Set Based Signature Secure in the Standard Model

• Baohong Li,
• Yinliang Zhao,
• Hongping Zhao,

Vol. 9, No. 4, April 29, 2015
10.3837/tiis.2015.04.014, Download Paper (Free):

• Attribute set based signatures
• signing policy
• subgroup decision assumptions
• dual system encryption

Abstract

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.

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