Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding

Jie Chen; Junqing Gong; Hoeteck Wee

doi:10.1007/978-3-030-03329-3_23

Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding

Jie Chen, Junqing Gong, Hoeteck Wee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

15 Scopus citations

Abstract

In this work, we propose two IPE schemes achieving both adaptive security and full attribute-hiding in the prime-order bilinear group, which improve upon the unique existing result satisfying both features from Okamoto and Takashima [Eurocrypt ’12] in terms of efficiency. Our first IPE scheme is based on the standard assumption and has shorter master public key and shorter secret keys than Okamoto and Takashima’s IPE under weaker assumption.Our second IPE scheme is adapted from the first one; the security is based on the assumption (as Okamoto and Takashima’s IPE) but now it also enjoys shorter ciphertexts. Technically, instead of starting from composite-order IPE and applying existing transformation, we start from an IPE scheme in a very restricted setting but already in the prime-order group, and then gradually upgrade it to our full-fledged IPE scheme. This method allows us to integrate Chen et al.’s framework [Eurocrypt ’15] with recent new techniques [TCC ’17, Eurocrypt ’18] in an optimized way.

Original language	English
Title of host publication	Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings
Editors	Thomas Peyrin, Steven Galbraith
Publisher	Springer Verlag
Pages	673-702
Number of pages	30
ISBN (Print)	9783030033286
DOIs	https://doi.org/10.1007/978-3-030-03329-3_23
State	Published - 2018
Externally published	Yes
Event	24th Annual International Conference on Theory and Application of Cryptology and Information Security, ASIACRYPT 2018 - Brisbane, Australia Duration: 2 Dec 2018 → 6 Dec 2018

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	11273 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	24th Annual International Conference on Theory and Application of Cryptology and Information Security, ASIACRYPT 2018
Country/Territory	Australia
City	Brisbane
Period	2/12/18 → 6/12/18

Access to Document

10.1007/978-3-030-03329-3_23

Cite this

Chen, J., Gong, J., & Wee, H. (2018). Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding. In T. Peyrin, & S. Galbraith (Eds.), Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings (pp. 673-702). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 11273 LNCS). Springer Verlag. https://doi.org/10.1007/978-3-030-03329-3_23

Chen, Jie ; Gong, Junqing ; Wee, Hoeteck. / Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding. Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings. editor / Thomas Peyrin ; Steven Galbraith. Springer Verlag, 2018. pp. 673-702 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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abstract = "In this work, we propose two IPE schemes achieving both adaptive security and full attribute-hiding in the prime-order bilinear group, which improve upon the unique existing result satisfying both features from Okamoto and Takashima [Eurocrypt {\textquoteright}12] in terms of efficiency. Our first IPE scheme is based on the standard assumption and has shorter master public key and shorter secret keys than Okamoto and Takashima{\textquoteright}s IPE under weaker assumption.Our second IPE scheme is adapted from the first one; the security is based on the assumption (as Okamoto and Takashima{\textquoteright}s IPE) but now it also enjoys shorter ciphertexts. Technically, instead of starting from composite-order IPE and applying existing transformation, we start from an IPE scheme in a very restricted setting but already in the prime-order group, and then gradually upgrade it to our full-fledged IPE scheme. This method allows us to integrate Chen et al.{\textquoteright}s framework [Eurocrypt {\textquoteright}15] with recent new techniques [TCC {\textquoteright}17, Eurocrypt {\textquoteright}18] in an optimized way.",

author = "Jie Chen and Junqing Gong and Hoeteck Wee",

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doi = "10.1007/978-3-030-03329-3\_23",

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Chen, J, Gong, J & Wee, H 2018, Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding. in T Peyrin & S Galbraith (eds), Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 11273 LNCS, Springer Verlag, pp. 673-702, 24th Annual International Conference on Theory and Application of Cryptology and Information Security, ASIACRYPT 2018, Brisbane, Australia, 2/12/18. https://doi.org/10.1007/978-3-030-03329-3_23

Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding. / Chen, Jie; Gong, Junqing; Wee, Hoeteck.
Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings. ed. / Thomas Peyrin; Steven Galbraith. Springer Verlag, 2018. p. 673-702 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 11273 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Gong, Junqing

AU - Wee, Hoeteck

PY - 2018

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N2 - In this work, we propose two IPE schemes achieving both adaptive security and full attribute-hiding in the prime-order bilinear group, which improve upon the unique existing result satisfying both features from Okamoto and Takashima [Eurocrypt ’12] in terms of efficiency. Our first IPE scheme is based on the standard assumption and has shorter master public key and shorter secret keys than Okamoto and Takashima’s IPE under weaker assumption.Our second IPE scheme is adapted from the first one; the security is based on the assumption (as Okamoto and Takashima’s IPE) but now it also enjoys shorter ciphertexts. Technically, instead of starting from composite-order IPE and applying existing transformation, we start from an IPE scheme in a very restricted setting but already in the prime-order group, and then gradually upgrade it to our full-fledged IPE scheme. This method allows us to integrate Chen et al.’s framework [Eurocrypt ’15] with recent new techniques [TCC ’17, Eurocrypt ’18] in an optimized way.

AB - In this work, we propose two IPE schemes achieving both adaptive security and full attribute-hiding in the prime-order bilinear group, which improve upon the unique existing result satisfying both features from Okamoto and Takashima [Eurocrypt ’12] in terms of efficiency. Our first IPE scheme is based on the standard assumption and has shorter master public key and shorter secret keys than Okamoto and Takashima’s IPE under weaker assumption.Our second IPE scheme is adapted from the first one; the security is based on the assumption (as Okamoto and Takashima’s IPE) but now it also enjoys shorter ciphertexts. Technically, instead of starting from composite-order IPE and applying existing transformation, we start from an IPE scheme in a very restricted setting but already in the prime-order group, and then gradually upgrade it to our full-fledged IPE scheme. This method allows us to integrate Chen et al.’s framework [Eurocrypt ’15] with recent new techniques [TCC ’17, Eurocrypt ’18] in an optimized way.

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T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

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PB - Springer Verlag

T2 - 24th Annual International Conference on Theory and Application of Cryptology and Information Security, ASIACRYPT 2018

Y2 - 2 December 2018 through 6 December 2018

ER -

Chen J, Gong J, Wee H. Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding. In Peyrin T, Galbraith S, editors, Advances in Cryptology – ASIACRYPT 2018 - 24th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings. Springer Verlag. 2018. p. 673-702. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-030-03329-3_23

Improved Inner-Product Encryption with Adaptive Security and Full Attribute-Hiding

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