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Theory and application of computationally independent one-way functions: Interactive proof of ability - Revisited
one-way functions zero knowledge proof computational independence
2019/4/1
We introduce the concept of computationally independent pair of one-way functions (CI-OWF). We also provide two rich classes of examples of such functions based on standard assumptions. We revisit two...
A Traceable Ring Signature Scheme based on Coding Theory
cryptographic protocols digital signatures
2019/4/1
Traceable ring signatures are a variant of ring signatures which allows the identity of a user to be revealed, when it signs two different messages with respect to the same group of users. It has appl...
Learning to Reconstruct: Statistical Learning Theory and Encrypted Database Attacks
Statistical Learning Theory Encrypted Database Attacks
2019/1/9
We show that the problem of reconstructing encrypted databases from access pattern leakage is closely related to statistical learning theory. This new viewpoint enables us to develop broader attacks t...
When Theory Meets Practice: A Framework for Robust Profiled Side-channel Analysis
Machine Learning Robustness Analysis Supervised Learning
2018/11/21
Profiled side-channel attacks are the most powerful attacks and they consist of two steps. The adversary first builds a leakage model, using a device similar to the target one, then it exploits this l...
Modeling Soft Analytical Side-Channel Attacks from a Coding Theory Viewpoint
Side-channel analysis belief propagation random probing model
2018/5/28
One important open question in the field of side-channel analysis is to find out whether all the leakage samples in an implementation can be exploited by an adversary, as suggested by masking security...
A Three-Perspective Theory of Cyber Sovereignty
Cyber Sovereignty Three-Perspective Theory Theoretical Framework
2019/10/22
The cybercrime and cyber terrorism raging today are the most visible symptoms of a more pervasive problem concerning cyber security. How to establish a fair and just governance regime in cyberspace an...
A Humble Theory and Application for Logic Encryption
logic encryption obfuscation SAT attack
2017/7/24
Logic encryption is an important hardware security technique that introduces keys to modify a given combinational circuit in order to lock the functionality from unauthorized uses. Traditional methods...
Robust Fuzzy Extractors and Helper Data Manipulation Attacks Revisited: Theory vs Practice
Fuzzy Extractor Physical Unclonable Functions Implementation Attacks
2017/6/2
Fuzzy extractors have been proposed in 2004 by Dodis et al. as a secure way to generate cryptographic keys from noisy sources. Originally, biometrics were the main motivation for fuzzy extractors but ...
Encrypted Davies-Meyer and Its Dual: Towards Optimal Security Using Mirror Theory
PRP-to-PRF Encrypted Davies-Meyer Encrypted Davies-Meyer Dual
2017/5/31
At CRYPTO 2016, Cogliati and Seurin introduced the Encrypted Davies-Meyer construction, p2(p1(x)⊕x)p2(p1(x)⊕x) for two nn-bit permutations p1,p2p1,p2, and proved security up to 22n/322n/3. We present ...
The design of an efficient code-based signature scheme is by all means still an open problem. In this paper, we propose a simple and efficient scheme following the framework detailed by Lyubashevsky t...
A First DFA on PRIDE: from Theory to Practice (extended version)
implementation cryptanalysis
2017/2/20
PRIDE is one of the most effcient lightweight block cipher proposed so far for connected objects with high performance and low resource constraints. In this paper we describe the first ever complete D...
Cryptographic applications of capacity theory: On the optimality of Coppersmith's method for univariate polynomials
Coppersmith's method lattices polynomial congruences
2016/12/9
We draw a new connection between Coppersmith's method for finding small solutions to polynomial congruences modulo integers and the capacity theory of adelic subsets of algebraic curves. Coppersmith's...
Evaluating the side-channel attacks (SCAs) resilience of a crypto device is important and necessary. The SCAs-secure evaluation criteria includes the information theoretic metric and the security metr...
Full Disk Encryption: Bridging Theory and Practice
disk encryption theory full disk encryption FDE
2016/12/7
We revisit the problem of Full Disk Encryption (FDE), which
refers to the encryption of each sector of a disk volume. In the context
of FDE, it is assumed that there is no space to store additional ...
the 22nd Annual International Conference on the Theory and Applications of Cryptology and Information Security
Cryptology Information Security
2016/7/19
Asiacrypt 2016, the 22nd Annual International Conference on the Theory and Applications of Cryptology and Information Security, will be organized by Vietnam Institute for Advanced Study in Mathematics...