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Structure-Preserving Signatures on Equivalence Classes and their Application to Anonymous Credentials
Public key cryptography structure-preserving signatures attribute-based anonymous credentials
2016/1/7
Structure-preserving signatures are a quite recent but important building block for many
cryptographic protocols. In this paper, we introduce a new type of structure-preserving signatures, which
all...
Crypto-analyses on “secure and efficient privacy-preserving public auditing scheme for cloud storage”
privacy-preserving auditing cloud storage bilinear pairing
2016/1/7
Recently, Worku et al. pointed out that the work “privacy-preserving public auditing for data storage security in cloud computing” proposed by Wang et al. is insecure and their second work “privacy- p...
EUF-CMA-Secure Structure-Preserving Signatures on Equivalence Classes
public-key cryptography structure-preserving signatures
2016/1/5
At ASIACRYPT’14 Hanser and Slamanig proposed a new primitive called structure-preserving signatures
on equivalence classes (SPS-EQ) and used it to construct very efficient attribute-based anonymous
...
Privacy-Preserving Data Publish-Subscribe Service on Cloud-based Platforms
Publish-Subscribe BP-ABE Subscription Policy
2016/1/5
Data publish-subscribe service is an effective approach to share and filter data. Due to the huge volume and velocity of data generated daily, cloud systems are inevitably becoming the platform for da...
Privacy-Preserving Face Recognition with Outsourced Computation
applications Outsourced Computation
2016/1/5
Face recognition is one of the most important biometrics pattern recognitions, which has been widely applied in a variety of enterprise, civilian and law enforcement. The privacy of biometrics data ra...
Armadillo: a compilation chain for privacy preserving applications
compilation fully homomorphic encryption applications
2016/1/5
In this work we present Armadillo a compilation chain used for compiling applications written in a high-level language (C++) to work on encrypted data. The back-end of the compilation chain is based o...
Strongly-Optimal Structure Preserving Signatures from Type II Pairings: Synthesis and Lower Bounds
Structure-Preserving Signatures Generic Group Model Bilinear Groups
2016/1/5
Recent work on structure-preserving signatures studies optimality of these schemes in terms of the
number of group elements needed in the verification key and the signature, and the number of pairing...
Insynd: Privacy-Preserving Transparency Logging Using Balloons
cryptographic protocols secure logging
2016/1/4
Insynd is a cryptographic scheme for privacy-preserving transparency logging. In the setting of transparency logging, a service provider continuously logs descriptions of its data processing on its us...
We propose storage efficient SQL-aware encrypted databases that preserve the format of the fields. We give experimental results of storage improvements in CryptDB using FNR encryption scheme.
Privacy-preserving Context-aware Recommender Systems: Analysis and New Solutions
recommender systems homomorphic encryption key recovery attacks
2015/12/31
Nowadays, recommender systems have become an indispensable part of our
daily life and provide personalized services for almost everything. However, nothing is
for free – such systems have also upset...
On the Optimality of Non-Linear Computations of Length-Preserving Encryption Schemes
XLS CMC Luby-Rackof
2015/12/31
It is well known that three and four rounds of balanced Feistel
cipher or Luby-Rackoff (LR) encryption for two blocks messages are
pseudorandom permutation (PRP) and strong pseudorandom permutation
...
Structure-Preserving Signatures from Standard Assumptions, Revisited
public-key cryptography Standard Assumptions
2015/12/29
Structure-preserving signatures (SPS) are pairing-based signatures where all the messages, signatures
and public keys are group elements, with numerous applications in public-key cryptography. We pre...
An Efficient ID-Based Message Recoverable Privacy-Preserving Auditing Scheme
Data storage public auditability privacy preserving
2015/12/29
One of the most important benefits of public cloud storage
is outsourcing of management and maintenance with easy accessibility
and retrievability over the internet. However, outsourcing data on the...
Privacy-preserving Frequent Itemset Mining for Sparse and Dense Data
frequent itemset mining secure multiparty computation
2015/12/29
Frequent itemset mining is a task that can in turn be used for other
purposes such as associative rule mining. One problem is that the data may be
sensitive, and its owner may refuse to give it for ...
Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts
blockchain cryptocurrency smart contracts
2015/12/29
Emerging smart contract systems over decentralized cryptocurrencies
allow mutually distrustful parties to transact
safely with each other without trusting a third-party intermediary.
In the event o...