搜索结果: 1-15 共查到“军事学 predicate”相关记录40条 . 查询时间(0.171 秒)
Predicate Encryption from Bilinear Maps and One-Sided Probabilistic Rank
Predicate Encryption Bilinear Maps Probabilistic Rank
2019/9/19
In predicate encryption for a function ff, an authority can create ciphertexts and secret keys which are associated with `attributes'. A user with decryption key KyKy corresponding to attribute yy can...
Unbounded Dynamic Predicate Compositions in Attribute-Based Encryption
attribute-based encryption predicate encryption nested policy
2019/3/4
We present several transformations that combine a set of attribute-based encryption (ABE) schemes for simpler predicates into a new ABE scheme for more expressive composed predicates. Previous proposa...
Function Private Predicate Encryption for Low Min-Entropy Predicates
public-key cryptography ZIPE
2019/1/4
In this work, we propose new predicate encryption schemes for zero inner-product encryption (ZIPE) and non-zero inner-product encryption (NIPE) predicates from prime-order bilinear pairings, which are...
Large Universe Subset Predicate Encryption Based on Static Assumption (without Random Oracle)
Predicate Encryption Adaptive Security Standard Model
2018/12/11
In a recent work, Katz et al. (CANS'17) generalized the notion of Broadcast Encryption to define Subset Predicate Encryption (SPE) that emulates \emph{subset containment} predicate in the encrypted do...
Realizing Chosen Ciphertext Security Generically in Attribute-Based Encryption and Predicate Encryption
Attribute-Based Encryption Predicate Encryption
2018/11/16
We provide generic and black box transformations from any chosen plaintext secure Attribute-Based Encryption (ABE) or One-sided Predicate Encryption system into a chosen ciphertext secure system. Our ...
Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption
predicate encryption partially-hiding simulation-based adaptive security
2018/11/13
This paper demonstrates how to achieve simulation-based strong attribute hiding against adaptive adversaries for predicate encryption (PE) schemes supporting expressive predicate families under standa...
On the Inner Product Predicate and a Generalization of Matching Vector Families
Predicate Encryption Inner Product Encoding Matching Vector Families
2018/11/7
Our main result is a simple lower bound that allows us to show that known encodings for many predicates considered in the cryptographic literature such as greater than and threshold are essentially op...
Multi-client Predicate-only Encryption for Conjunctive Equality Tests
multi-client functional encryption predicate-only encryption privacy-preserving multi-client monitoring
2018/6/5
We propose the first multi-client predicate-only encryption scheme capable of efficiently testing the equality of two encrypted vectors. Our construction can be used for the privacy-preserving monitor...
New Lower Bounds on Predicate Entropy for Function Private Public-Key Predicate Encryption
Predicate Encryption Public-Key Function Privacy
2018/3/6
We present function private public-key predicate encryption schemes from standard cryptographic assumptions, that achieve new lower bounds on the min-entropy of underlying predicate distributions. Exi...
CCA-secure Predicate Encryption from Pair Encoding in Prime Order Groups: Generic and Efficient
Predicate Encryption CCA Security Pair Encoding Scheme
2017/7/6
Attrapadung (Eurocrypt 2014) proposed a generic framework called pair encoding to simplify the design and proof of security of CPA-secure predicate encryption (PE) instantiated in composite order grou...
Subtleties in Security Definitions for Predicate Encryption with Public Index
predicate encryption with public index predicate key-encapsulation mechanism semantic security definition
2017/5/26
We take a critical look at established security definitions for predicate encryption (PE) with public index under chosen-plaintext attack (CPA) and under chosen-ciphertext attack (CCA). In contrast to...
Encrypt-Augment-Recover: Computationally Function Private Predicate Encryption in the Public-Key Setting
Predicate Encryption Public-Key Function Privacy
2017/4/17
We solve the open problem of constructing \emph{computationally function private} public-key predicate encryption schemes. Existing public-key constructions for predicate encryption satisfy a \emph{st...
Simplifying Design and Analysis of Complex Predicate Encryption Schemes
predicate encryption attribute-based encryption bilinear maps
2017/3/9
Wee (TCC'14) and Attrapadung (Eurocrypt'14) introduced predicate and pair encodings, respectively, as a simple way to construct and analyze attribute-based encryption schemes, or more generally predic...
Practical Functional Encryption for Quadratic Functions with Applications to Predicate Encryption
functional encryption predicate encryption
2017/2/23
We present two practically efficient functional encryption schemes for a large class of quadratic functionalities. Specifically, our constructions enable the computation of so-called bilinear maps on ...
Succinct Predicate and Online-Offline Multi-Input Inner Product Encryptions under Standard Static Assumptions
inner-product-predicate encryption attribute-based encryption
2016/12/9
This paper presents expressive predicate encryption (PE) systems, namely non-zero inner-product-predicate encryption (NIPPE) and attribute-based encryption (ABE) supporting monotone span programs achi...