TY - GEN
T1 - Making any attribute-based encryption accountable, efficiently
AU - Lai, Junzuo
AU - Tang, Qiang
N1 - Funding Information:
Acknowledgement. We are grateful to the anonymous reviewers for their helpful comments. The work of Junzuo Lai was supported by National Natural Science Foundation of China (No. 61572235), and Guangdong Natural Science Funds for Distinguished Young Scholar (No. 2015A030306045). Qiang Tang was partially supported by NSFC Fund for Oversea Chinese Scholars (No. 61728208).
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
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U2 - 10.1007/978-3-319-98989-1_26
DO - 10.1007/978-3-319-98989-1_26
M3 - Conference contribution
AN - SCOPUS:85051864564
SN - 9783319989884
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 527
EP - 547
BT - Computer Security - 23rd European Symposium on Research in Computer Security, ESORICS 2018, Proceedings
A2 - Zhou, Jianying
A2 - Soriano, Miguel
A2 - Lopez, Javier
PB - Springer Verlag
T2 - 23rd European Symposium on Research in Computer Security, ESORICS 2018
Y2 - 3 September 2018 through 7 September 2018
ER -