Making any attribute-based encryption accountable, efficiently

Document Type

Conference Proceeding

Publication Date

1-1-2018

Abstract

Attribute-based encryption (ABE) as one of the most interesting multi-recipient public encryption systems, naturally requires some “tracing mechanisms” to identify misbehaving users to foster accountability when unauthorized key re-distributions are taken place. We give a generic construction of (black-box) traceable ABE which only doubles the ciphertext size of the underlying ABE scheme. When instantiating properly, it yields the first such scheme with constant size ciphertext and expressive access control. Furthermore, we extend our generic construction of traceable ABE to support authority accountability. This property is essential for generating an un-deniable proof for user misbehaviors. Our new generic construction gives the first black-box traceable ABE with authority accountability, and constant size ciphertext. All properties are achieved in standard security models.

Identifier

85051864564 (Scopus)

ISBN

[9783319989884]

Publication Title

Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics

External Full Text Location

https://doi.org/10.1007/978-3-319-98989-1_26

e-ISSN

16113349

ISSN

03029743

First Page

527

Last Page

547

Volume

11099 LNCS

Grant

2015A030306045

Fund Ref

National Natural Science Foundation of China

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