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Dual System Encryption via Doubly Selective Security: Framework, Fully-secure Functional Encryption for Regular Languages, and More
Dual system encryption Functional encryption for regular languages Attribute-based encryption
2016/1/9
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 som...
We introduce the notion of predicate encodings, an information-theoretic primitive reminiscent
of linear secret-sharing that in addition, satisfies a novel notion of reusability. Using this notion, w...
Dual System Encryption Framework in Prime-Order Groups
attribute-based encryption full security generic framework
2015/12/31
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 ...
DFA-Based Functional Encryption: Adaptive Security from Dual System Encryption
deterministic finite automata FE over regular languages
2014/3/7
We present an adaptively secure functional encryption (FE) scheme based on deterministic finite automata (DFA). The construction uses composite-order bilinear pairings and is built upon the selectivel...
Anonymous HIBE from Standard Assumptions over Type-3 Pairings using Dual System Encryption
hierarchical identity-based encryption (HIBE) anonymous HIBE
2014/3/10
We present the first anonymous hierarchical identity based encryption (HIBE) scheme using Type-3 pairings with adaptive security based on standard assumptions. Previous constructions of anonymous HIBE...
Achieving Leakage Resilience Through Dual System Encryption
Leakage Resilience Dual System Encryption
2010/8/17
In this work, we show that strong leakage resilience for cryptosystems with advanced functionalities can be obtained quite naturally within the methodology of dual system encryption, recently introduc...
Dual System Encryption:Realizing Fully Secure IBE and HIBE under Simple Assumptions
Dual System Encryption Secure IBE HIBE
2009/8/18
We present a new methodology for proving security of encryption systems using what we call
Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption (IBE)
and Hierarchi...