Expiration and Revocation of Keys for Attribute-Based Signatures

Conference paper

DOI: 10.1007/978-3-319-20810-7_10

Part of the Lecture Notes in Computer Science book series (LNCS, volume 9149)
Cite this paper as:
Tate S.R., Vishwanathan R. (2015) Expiration and Revocation of Keys for Attribute-Based Signatures. In: Samarati P. (eds) Data and Applications Security and Privacy XXIX. DBSec 2015. Lecture Notes in Computer Science, vol 9149. Springer, Cham

Abstract

Attribute-based signatures, introduced by Maji et al., are signatures that prove that an authority has issued the signer “attributes” that satisfy some specified predicate. In existing attribute-based signature schemes, keys are valid indefinitely once issued. In this paper, we initiate the study of incorporating time into attribute-based signatures, where a time instance is embedded in every signature, and attributes are restricted to producing signatures with times that fall in designated validity intervals. We provide three implementations that vary in granularity of assigning validity intervals to attributes, including a scheme in which each attribute has its own independent validity interval, a scheme in which all attributes share a common validity interval, and a scheme in which sets of attributes share validity intervals. All of our schemes provide anonymity to a signer, hide the attributes used to create the signature, and provide collusion-resistance between users.

Keywords

Attribute-based signatures Key revocation Key expiration 

Copyright information

© IFIP International Federation for Information Processing 2015

Authors and Affiliations

  1. 1.Department of Computer ScienceUNC GreensboroGreensboroUSA
  2. 2.Department of Computer ScienceSUNY PolyUticaUSA

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