Verifying Outsourced Decryption of CP-ABE with Signature

DOI

10.2991/icmmcce-15.2015.388How to use a DOI?

Keywords

Attribute-based encryption, Outsourced Decryption, Verification, Short Signature.

Abstract

Attribute-based encryption enables users to encrypt and decrypt messages based on user attributes. The computational complexities of decryption are very high. By Outsourcing decryption to the third party, it can address the problem. But the verifiability of results returned from the third party has yet to be addressed. In this paper, we introduce short signature and give a new model of verifiable outsourced decryption of ABE cipertexts. By using signature, we achieve the verification and provide good performance and propose a concrete scheme. We prove that our scheme is both secure and verifiable. Moreover, we show an implementation of our scheme and result of performance measurements.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hongwei Liu
AU  - Xueyuan Wang
AU  - Peng Zhang
PY  - 2015/12
DA  - 2015/12
TI  - Verifying Outsourced Decryption of CP-ABE with Signature
BT  - Proceedings of the 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering 2015
PB  - Atlantis Press
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmcce-15.2015.388
DO  - 10.2991/icmmcce-15.2015.388
ID  - Liu2015/12
ER  -