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Dual Isogenies and Their Application to Public-key Compression for Isogeny-based Cryptography
Post-quantum cryptography public-key compression supersingular elliptic curves
2019/5/21
The isogeny-based protocols SIDH and SIKE have received much attention for being post-quantum key agreement candidates that retain relatively small keys. A recent line of work has proposed and further...
Efficient Multi-Key Homomorphic Encryption with Packed Ciphertexts with Application to Oblivious Neural Network Inference
multi-key homomorphic encryption packed ciphertext ring learning with errors
2019/5/21
Homomorphic Encryption (HE) is a cryptosystem which supports computation on encrypted data. López-Alt et al. (STOC 2012) proposed a generalized notion of HE, called Multi-Key Homomorphic Encryption (M...
From Collisions to Chosen-Prefix Collisions - Application to Full SHA-1
hash function cryptanalysis chosen-prefix collision
2019/5/13
A chosen-prefix collision attack is a stronger variant of a collision attack, where an arbitrary pair of challenge prefixes are turned into a collision. Chosen-prefix collisions are usually significan...
Oblivious PRF on Committed Vector Inputs and Application to Deduplication of Encrypted Data
public-key cryptography applications pseudo-random functions
2019/5/5
Ensuring secure deduplication of encrypted data is a very active topic of research because deduplication is effective at reducing storage costs. Schemes supporting deduplication of encrypted data that...
ASTRA: High Throughput 3PC over Rings with Application to Secure Prediction
Secure Computation Machine Learning 3PC
2019/4/28
The concrete efficiency of secure computation has been the focus of many recent works. In this work, we present protocols for secure 33-party computation (3PC) tolerating one corruption in the offline...
Composition of Boolean Functions: An Application to the Secondary Constructions of Bent Functions
Secondary constructions Composition of Boolean functions Bent
2019/4/28
Bent functions are optimal combinatorial objects and have been attracted their research for four decades. Secondary constructions play a central role in constructing bent functions since a complete cl...
Algebraic Cryptanalysis of STARK-Friendly Designs: Application to MARVELlous and MiMC
MARVELlous Jarvis Friday
2019/4/25
The block cipher Jarvis and the hash function Friday, both members of the MARVELlous family of cryptographic primitives, were recently proposed as custom designs aimed at addressing bottlenecks involv...
Improved quantum attack on Type-1 Generalized Feistel Schemes and Its application to CAST-256
Generalized Feistel Scheme Quantum attack Simon's algorithm
2019/4/1
Generalized Feistel Schemes (GFS) are important components of symmetric ciphers, which have been extensively researched in classical setting. However, the security evaluations of GFS in quantum settin...
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...
VIRTUALISING AN OTTOMAN FORTRESS – LASER SCANNING AND 3D MODELLING FOR THE DEVELOPMENT OF AN INTERACTIVE, IMMERSIVE VIRTUAL REALITY APPLICATION
3D HTC Vive modelling reconstruction virtual reality
2019/3/4
“A picture is worth a thousand words”: a famous quote about knowledge dissemination but also literally true. The documentation of cultural heritage (CH) monuments is carried out by measurements and ph...
INTERACTIVE IMAGE GEOLOCALIZATION IN AN IMMERSIVE WEB APPLICATION
3D web application historical images pose estimation
2019/3/2
For a long time people have been interested in the past and history and how we can go back in time using a time machine. And while we cannot invent a time machine, at least not yet, we can create a vi...
A Quantum-Proof Non-Malleable Extractor With Application to Privacy Amplification against Active Quantum Adversaries
Privacy Amplification Non-malleable extractors Quantum Cryptography
2019/3/1
privacy amplification, two mutually trusted parties aim to amplify the secrecy of an initial shared secret X in order to establish a shared private key K by exchanging messages over an insecure commun...
DEVELOPMENT OF VIRTUAL REALITY APPLICATION FOR CULTURAL HERITAGE VISUALIZATION FROM MULTI-SOURCE 3D DATA
Virtual Reality Visualization Cultural heritage Multi-source data
2019/3/1
Immersive technologies like Virtual or Augmented Reality (VR/AR) are lately becoming more and more popular in wide range of scientific applications. These technologies provide the most immersive way t...
3D MODELLING AND VIRTUAL REALITY APPLIED TO COMPLEX ARCHITECTURES: AN APPLICATION TO HOSPITALS’ DESIGN
HBIM healthcare facilities 3D modelling hospitals’ management aser scanning
2019/3/1
There are many healthcare facilities in Spain that were built throughout the second half of the 20th century, and compose an interesting built heritage designed by outstanding architects of the archit...
Related-Tweak Statistical Saturation Cryptanalysis and Its Application on QARMA
Related-Tweak Statistical Saturation KDIB Conditional Equivalence
2019/3/1
Statistical saturation attack takes advantage of a set of plaintext with some bits fixed while the others vary randomly, and then track the evolution of a non-uniform plaintext distribution through th...