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A Tag Based Encoding: An Efficient Encoding for Predicate Encryption in Prime Order Groups
[chapter]
2016
Lecture Notes in Computer Science
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We introduce a tag based encoding, a new generic framework for modular design of Predicate Encryption (PE) schemes in prime order groups. ...
Our Contribution We introduce a tag based encoding, a new generic framework for PE schemes in prime order groups. ...
this paper, we proposed a new encoding framework for PE schemes. ...
doi:10.1007/978-3-319-44618-9_1
fatcat:3uwzogze6vayfj54wdy5xzkwya
Dual System Encryption via Predicate Encodings
[chapter]
2014
Lecture Notes in Computer Science
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Moreover, the new schemes often bear a structural resemblance to prior schemes. ...
Using this notion, we obtain a unifying framework for adaptively-secure public-index predicate encryption schemes for a large class of predicates. ...
I would like to thank Jie Chen, Kai-Min Chung, Yuval Ishai, Allison Lewko and Vinod Vaikuntanathan for insightful discussions. ...
doi:10.1007/978-3-642-54242-8_26
fatcat:4ovr5sr3q5ci5jfc5yxoxzgz3a
Generic Transformations of Predicate Encodings: Constructions and Applications
[chapter]
2017
Lecture Notes in Computer Science
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Predicate encodings (Wee, TCC 2014; Chen, Gay, Wee, EU-ROCRYPT 2015), are symmetric primitives that can be used for building predicate encryption schemes. ...
compare our constructions for boolean combinations of pair encodings with existing similar constructions from pair encodings. ...
We would also like to thank anonymous reviewers of CRYPTO 2017 for their valuable time and feedback. ...
doi:10.1007/978-3-319-63688-7_2
fatcat:3clixushpzbx7m5ppraxrznouy
Improved Dual System ABE in Prime-Order Groups via Predicate Encodings
[chapter]
2015
Lecture Notes in Computer Science
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Our framework has three novel components over prior works: (i) new techniques for simulating composite-order groups in primeorder ones, (ii) a refinement of prior encodings framework for dual system ABE ...
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 ...
We thank Eike Kiltz and Jiaxin Pan for insightful discussions, and the anonymous reviewers for helpful feedback on the write-up. ...
doi:10.1007/978-3-662-46803-6_20
fatcat:quoesu72ejap7gwqehrmgqfuja
Functional encryption for computational hiding in prime order groups via pair encodings
2017
Designs, Codes and Cryptography
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In this work, we aim to address this drawback by proposing a new generalised construction for pair encodings in prime order groups. ...
Our construction will lead to a number of new FE schemes in prime order groups, which have been previously introduced only in composite order groups by Attrapadung. ...
Our Contribution Pair encodings in prime order groups. We introduce a new construction in prime order groups for pair encoding schemes. ...
doi:10.1007/s10623-017-0327-7
fatcat:r2xuhga7pvac5cptfcx3w3unq4
A Study of Pair Encodings: Predicate Encryption in Prime Order Groups
[chapter]
2015
Lecture Notes in Computer Science
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Next we show a generic construction for predicate encryption in prime order groups from our new property; it results in either semi-adaptive or full security depending on the encoding, and gives security ...
Many of the proposed schemes require composite order pairings, in which the order of the pairing groups is a product of two or more primes; since these schemes require that factoring the group order is ...
for the same predicate in prime-order groups under Matrix Diffie-Hellman assumption [EHK + 13] (of which DLIN is a special case) with an additional q-type assumption in the case of pair encodings that ...
doi:10.1007/978-3-662-49099-0_10
fatcat:c65bakaxwvee3dv2hdr7gzyrku
Predicate signatures from pair encodings via dual system proof technique
2019
Journal of Mathematical Cryptology
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Recently, Attrapadung (Eurocrypt 2014) proposed a generic framework for fully (adaptively) secure predicate encryption (PE) based on a new primitive, called pair encodings. ...
Thereafter, we instantiate many PS schemes with new results, e.g., the first practical PS schemes for regular languages, the first attribute-based signature (ABS) scheme with constant-size signatures in ...
Recently, Chen, Gay and Wee [16] and Attrapadung [2] proposed new generic frameworks for achieving adaptively secure ABE in the prime order bilinear groups, which are nothing but the prime order version ...
doi:10.1515/jmc-2017-0007
fatcat:bcill2nu6rdjtnfzx22a7pvrzq
Dual System Encryption via Doubly Selective Security: Framework, Fully Secure Functional Encryption for Regular Languages, and More
[chapter]
2014
Lecture Notes in Computer Science
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We introduce a new primitive called pair encoding scheme for predicates and show that it implies fully secure functional encryption (for the same predicates) via a generic construction. ...
Our framework can be regarded as a method for boosting doubly selectively security (of encoding) to full security (of functional encryption). ...
I would like to thank Michel Abdalla, Takahiro Matsuda, Shota Yamada, and reviewers for their helpful comments on previous versions. ...
doi:10.1007/978-3-642-55220-5_31
fatcat:bogsnlvadvb25bga7lm4en3rxa
Simplifying Design and Analysis of Complex Predicate Encryption Schemes
[chapter]
2017
Lecture Notes in Computer Science
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In this paper, we propose a new simple property for pair encodings called symbolic security. Proofs that pair encodings satisfy this property are concise and easy to verify. ...
Finally, we show that any pair encoding satisfying our new property can be used to construct a fully secure predicate encryption scheme. ...
This leads to an encryption scheme with constant-size ciphertexts in prime-order groups under the k-linear and q-ratio assumptions (Corollary 7.2). ...
doi:10.1007/978-3-319-56620-7_22
fatcat:stn6fy6dmve3reaiiwr4jdvnwa
Predicate Encryption Supporting Disjunctions, Polynomial Equations, and Inner Products
2012
Journal of Cryptology
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Predicate encryption is a new paradigm generalizing, among other things, identity-based encryption. ...
In a predicate encryption scheme, secret keys correspond to predicates and ciphertexts are associated with attributes; the secret key SK f corresponding to a predicate f can be used to decrypt a ciphertext ...
Disclaimer The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the U.S. ...
doi:10.1007/s00145-012-9119-4
fatcat:tfnnrjydn5ghxeixusx5mh3nte
CCA-secure Predicate Encryption from Pair Encoding in Prime Order Groups: Generic and Efficient
[chapter]
2017
Lecture Notes in Computer Science
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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. ...
This is a significant improvement over conventional approach for CPA-to-CCA conversion in prime order groups. G = G (d+1) 1 and H = G (d+1) 2 respectively. C(·) denotes the cost function. ...
[6] constructed adaptive CPA-secure predicate encryption schemes in the prime order groups using pair encoding and predicate encoding respectively. ...
doi:10.1007/978-3-319-71667-1_5
fatcat:2yyulgz5rvddxeu3e6zztwosse
Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption
[chapter]
2010
Lecture Notes in Computer Science
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We present two fully secure functional encryption schemes: a fully secure attribute-based encryption (ABE) scheme and a fully secure (attribute-hiding) predicate encryption (PE) scheme for inner-product ...
Our predicate encryption scheme is constructed via a new approach on bilinear pairings using the notion of dual pairing vector spaces proposed by Okamoto and Takashima. ...
We believe that our fully secure system in composite order groups can be transformed to a fully secure system in prime order groups. ...
doi:10.1007/978-3-642-13190-5_4
fatcat:sazrfsry65gpzh5bwxm2idfl7q
A multi-authority approach to various predicate encryption types
2019
Designs, Codes and Cryptography
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In our decentralized system, anyone can create a new authority and issue decryption keys for their own predicates. ...
In such multiauthority predicate encryption scheme, ciphertexts are associated with one or more predicates from various authorities and only if a user has a set of decryption keys that evaluates all predicates ...
The authors additionally thank Bence Bakondi for his help in checking part of the MA-PES proofs and proofreading part of the paper. ...
doi:10.1007/s10623-019-00686-x
fatcat:zv5smkt7ebd3vcsjwxirifrymu
Expressive Public-Key Encryption with Keyword Search: Generic Construction from KP-ABE and an Efficient Scheme over Prime-Order Groups
2019
IEEE Access
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INDEX TERMS Searchable encryption, expressive keyword search, key-policy attribute-based encryption, prime-order group. ...
Furthermore, we present a concrete EPEKS scheme over the prime-order groups. The comparison and experimental results indicate that our scheme is more efficient than the existing EPEKS schemes. ...
[27] embedded the LSSS structure into keyword search and, for the first time, implemented an EPEKS scheme over the prime-order groups. ...
doi:10.1109/access.2019.2961633
fatcat:3yxpijcz3vhspbqwrt6deb4ouy
A Framework for Game-Based Security Proofs
[chapter]
2007
Lecture Notes in Computer Science
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We illustrate the use of our framework by proving in a systematic way the so-called semantic security of the encryption scheme Elgamal and its hashed version. ...
A common way to present security proofs is to structure them as sequences of games. The main contribution of this paper is a framework which refines this approach. ...
We would like to thank Reynald Affeldt for having directed us to this research area in the first place, and for helpful discussions. ...
doi:10.1007/978-3-540-77048-0_25
fatcat:7n77lpauevdufdkr3copl5gpve
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