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Experience shows that most researchers and developers tend to treat plain-domains (those that are not prefixed with “www” sub-domains, e.g. “example.com”) as synonyms for their equivalent www-domains ...
Better Bootstrapping for Approximate Homomorphic Encryption
Homomorphic Encryption Bootstrapping Polynomial Approximation
2019/6/12
After Cheon et al. (Asiacrypt' 17) proposed approximate homomorphic encryption for operations between encrypted real (or complex) numbers, this scheme is widely used in various fields with the needs o...
Attacks Only Get Better: How to Break FF3 on Large Domains
Format-preserving encryption attacks
2019/3/2
We improve the attack of Durak and Vaudenay (CRYPTO'17) on NIST Format-Preserving Encryption standard FF3, reducing the running time from O(N5)O(N5) to O(N17/6)O(N17/6) for domain ZN×ZNZN×ZN. Concrete...
Variants of the AES Key Schedule for Better Truncated Differential Bounds
AES Key schedule Related-key Truncated Differential
2019/2/27
Differential attacks are one of the main ways to attack block ciphers. Hence, we need to evaluate the security of a given block cipher against these attacks. One way to do so is to determine the minim...
LANDFORM PERCEPTION ACCURACY IN SHADED RELIEF MAPS: A REPLICATION STUDY CONFIRMS THAT NNW LIGHTING IS BETTER THAN NW AGAINST THE RELIEF INVERSION EFFECT
Relief inversion effect Terrain reversal effect Shaded relief maps
2018/11/9
Relief inversion effect is a perceptual phenomenon that leads to an inverted perception of convex and concave shapes. This perceptual inversion occurs in scenes where the shading/shadows act as the ma...
HOW CAN 3D GIS BE USED TO BETTER STORE, INTEGRATE AND COMMUNICATE RESULTS OF ENVIRONMENTAL IMPACT ASSESSMENTS?
3D GIS GIS environmental datasets Environmental Impact Assessment
2018/11/9
In the United Kingdom, the process of conducting the Environmental Impact Assessment (EIA) is a legal requirement for projects of considerable size or those that can affect the environment. EIA result...
Better Than Advertised: Improved Collision-Resistance Guarantees for MD-Based Hash Functions
hash functions MD transform SHA
2018/6/25
The MD transform that underlies the MD and SHA families iterates a compression function hh to get a hash function HH. The question we ask is, what property X of hh guarantees collision resistance (CR)...
A Treasury System for Cryptocurrencies: Enabling Better Collaborative Intelligence
cryptographic protocols treasury participants
2018/5/15
A treasury system is a community controlled and decentralized collaborative decision-making mechanism for sustainable funding of the blockchain development and maintenance. During each treasury period...
COMPARISON OF POINT CLOUD REGISTRATION ALGORITHMS FOR BETTER RESULT ASSESSMENT – TOWARDS AN OPEN-SOURCE SOLUTION
Registration Point clouds Comparison Evaluation Open-source Laser scanning Quality criteria
2018/6/4
Terrestrial and airborne laser scanning, photogrammetry and more generally 3D recording techniques are used in a wide range of applications. After recording several individual 3D datasets known in loc...
Revisiting AES-GCM-SIV: Multi-user Security, Faster Key Derivation, and Better Bounds
Multi-user security AES-GCM-SIV authenticated encryption
2018/2/8
This paper revisits the multi-user (mu) security of symmetric encryption, from the perspective of delivering an analysis of the AES-GCM-SIV AEAD scheme. Our end result shows that its mu security is co...
Better Bounds for Block Cipher Modes of Operation via Nonce-Based Key Derivation
modes of operation key derivation nonce-misuse resistance
2017/7/24
Block cipher modes of operation provide a way to securely encrypt using a block cipher. The main factors in analyzing modes of operation are the level of security achieved (chosen-plaintext security, ...
Weak is Better: Tightly Secure Short Signatures from Weak PRFs
weak pseudorandom functions signatures lattice-based cryptography
2017/6/15
The Boyen-Li signature scheme [Asiacrypt'16] is a major theoretical breakthrough. Via a clever homomorphic evaluation of a pseudorandom function over their verification key, they achieve a reduction l...
Is there a better way to set population iron recommendations?
iron deficiency anemia iron deficiency organizations
2018/11/14
Iron deficiency affects >2 billion people worldwide, with >1 billion of those developing iron deficiency anemia (1), leading to an estimated 45 million disability-adjusted life-years lost in 2010 (2)....
A roadmap to fully homomorphic elections: Stronger security, better verifiability
fully homomorphic encryption remote internet voting quantum-safe
2017/2/24
After the trials of remote internet voting for local elections in 2011 and parliamentary elections in 2013, a number of local referendums has renewed interest in internet voting in Norway.
Adherence to the Mediterranean diet is associated with better quality of life: data from the Osteoarthritis Initiative
depression Mediterranean diet quality of life osteoarthritis initiative pain disability
2018/12/18
Background: The Mediterranean diet has positively influenced various medical conditions, but only a paucity of studies has considered the relation between the Mediterranean diet and quality of life (Q...