International Association for Cryptologic Research

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Found 20000 results
Dual System Encryption Framework in Prime-Order Groups via Computational Pair Encodings
Iacrpub
https://iacr.org/cryptodb/data/paper.php?pubkey=27859
Nuttapong Attrapadung
Asiacrypt 2016
Dual System Encryption Framework in Prime-Order Groups
Eprint
https://eprint.iacr.org/2015/390
Nuttapong Attrapadung
We propose a new generic framework for achieving fully secure attribute based encryption (ABE) in prime-order bilinear groups. It is generic in the sense that it can be applied to ABE for arbitrary predicate. All previously...
last revised 15 Jun 2015
Improved Dual System ABE in Prime-Order Groups via Predicate Encodings
Eprint
https://eprint.iacr.org/2015/409
Jie Chen Romain Gay Hoeteck Wee
We present a modular framework for the design of efficient adaptively secure attribute-based encryption (ABE) schemes for a large class of predicates under the standard k-Lin assumption in prime-order groups; this is the first...
received 30 Apr 2015
Dual System Groups and its Applications --- Compact HIBE and More
Eprint
https://eprint.iacr.org/2014/265
Jie Chen Hoeteck Wee
We introduce the notion of *dual system groups*. - We show how to derive compact HIBE by instantiating the dual system framework in Waters (Crypto '09) and Lewko and Waters (TCC '10) with dual system groups. Our construction...
last revised 20 Apr 2014
Dual System Encryption via Doubly Selective Security: Framework, Fully Secure Functional Encryption for Regular Languages, and More
Iacrpub
https://iacr.org/cryptodb/data/paper.php?pubkey=25232
Nuttapong Attrapadung
Eurocrypt 2014
Improved Dual System ABE in Prime-Order Groups via Predicate Encodings
Iacrpub
https://iacr.org/cryptodb/data/paper.php?pubkey=27274
Jie Chen Romain Gay Hoeteck Wee
Eurocrypt 2015
Dual System Framework in Multilinear Settings and Applications to Fully Secure (Compact) ABE for Unbounded-Size Circuits
Iacrpub
https://iacr.org/cryptodb/data/paper.php?pubkey=28156
Nuttapong Attrapadung
Pkc 2017
Functional Encryption for Computational Hiding in Prime Order Groups via Pair Encodings
Eprint
https://eprint.iacr.org/2016/949
Jongkil Kim Willy Susilo Fuchun Guo Man Ho Au
Lewko and Waters introduced the computational hiding technique in Crypto'12. In their technique, two computational assumptions that achieve selective and co-selective security proofs lead to adaptive security of an encryption...
last revised 1 Oct 2016
CCA-secure Predicate Encryption from Pair Encoding in Prime Order Groups: Generic and Efficient
Eprint
https://eprint.iacr.org/2017/657
Sanjit Chatterjee Sayantan Mukherjee Tapas Pandit
Attrapadung (Eurocrypt 2014) proposed a generic framework called pair encoding to simplify the design and proof of security of CPA-secure predicate encryption (PE) in composite order groups. Later Attrapadung (Asiacrypt 2016)...
last revised 23 Oct 2017
Dual System Encryption via Doubly Selective Security: Framework, Fully-secure Functional Encryption for Regular Languages, and More
Eprint
https://eprint.iacr.org/2014/428
Nuttapong Attrapadung
Dual system encryption techniques introduced by Waters in Crypto'09 are powerful approaches for constructing fully secure functional encryption (FE) for many predicates. However, there are still some FE for certain predicates...
last revised 20 Nov 2014
Extended Nested Dual System Groups, Revisited
Eprint
https://eprint.iacr.org/2015/820
Junqing Gong Jie Chen Xiaolei Dong Zhenfu Cao Shaohua Tang
The notion of extended nested dual system groups (ENDSG) was recently proposed by Hofheinz et al. [PKC 2015] for constructing almost-tight identity based encryptions (IBE) in the multi-instance, multi-ciphertext (MIMC)...
last revised 6 Oct 2015
A Profitable Sub-Prime Loan: Obtaining the Advantages of Composite Order in Prime-Order Bilinear Groups
Eprint
https://eprint.iacr.org/2013/300
Allison Lewko Sarah Meiklejohn
Composite-order bilinear groups provide many structural features that are useful for both constructing cryptographic primitives and enabling security reductions. Despite these convenient features, however, composite-order...
last revised 5 Feb 2015
A Tag Based Encoding: An Efficient Encoding for Predicate Encryption in Prime Order Groups
Eprint
https://eprint.iacr.org/2016/655
Jongkil Kim Willy Susilo Fuchun Guo Man Ho Au
We introduce a tag based encoding, a new generic framework for modular design of Predicate Encryption (PE) schemes in prime order groups. Our framework is equipped with a compiler which is adaptively secure in prime order...
last revised 23 Mar 2017
Dual System Framework in Multilinear Settings and Applications to Fully Secure (Compact) ABE for Unbounded-Size Circuits
Eprint
https://eprint.iacr.org/2017/023
Nuttapong Attrapadung
We propose a new generic framework for constructing fully secure attribute based encryption (ABE) in multilinear settings. It is applicable in a generic manner to any predicates. Previous generic frameworks of this kind are...
received 10 Jan 2017
Converting Pairing-Based Cryptosystems from Composite-Order Groups to Prime-Order Groups
Eprint
https://eprint.iacr.org/2009/540
David Mandell Freeman
We develop an abstract framework that encompasses the key properties of bilinear groups of composite order that are required to construct secure pairing-based cryptosystems, and we show how to use prime-order elliptic curve...
last revised 5 Nov 2009
A Framework for Identity-Based Encryption with Almost Tight Security
Eprint
https://eprint.iacr.org/2015/566
Nuttapong Attrapadung Goichiro Hanaoka Shota Yamada
We show a framework for constructing identity-based encryption (IBE) schemes that are (almost) tightly secure in the multi-challenge and multi-instance setting. In particular, we formalize a new notion called broadcast...
last revised 9 Jun 2015
Duality in ABE: Converting Attribute Based Encryption for Dual Predicate and Dual Policy via Computational Encodings
Eprint
https://eprint.iacr.org/2015/157
Nuttapong Attrapadung Shota Yamada
We show a generic conversion that converts an attribute based encryption (ABE) scheme for arbitrary predicate into an ABE scheme for its dual predicate. In particular, it can convert key-policy ABE (KP-ABE) into...
last revised 15 Jun 2015
A Study of Pair Encodings: Predicate Encryption in Prime Order Groups
Eprint
https://eprint.iacr.org/2015/413
Shashank Agrawal Melissa Chase
Pair encodings and predicate encodings, recently introduced by Attrapadung (Eurocrypt 2014) and Wee (TCC 2014) respectively, greatly simplify the process of designing and analyzing predicate and attribute-based encryption...
last revised 8 Mar 2017
Tools for Simulating Features of Composite Order Bilinear Groups in the Prime Order Setting
Eprint
https://eprint.iacr.org/2011/490
Allison Lewko
In this paper, we explore a general methodology for converting composite order pairing-based cryptosystems into the prime order setting. We employ the dual pairing vector space approach initiated by Okamoto and Takashima and...
last revised 18 Jan 2012
ABE with Tag Made Easy: Concise Framework and New Instantiations in Prime-order Groups
Eprint
https://eprint.iacr.org/2017/859
Jie Chen Junqing Gong
Among all existing identity-based encryption (IBE) schemes in the bilinear group, Wat-IBE proposed by Waters [CRYPTO, 2009] and JR-IBE proposed by Jutla and Roy [AsiaCrypt, 2013] are quite special. A secret key and/or...
received 6 Sep 2017
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