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Aggregate Cash Systems: A Cryptographic Investigation of Mimblewimble
Mimblewimble Bitcoin commitments
2018/11/2
Mimblewimble is an electronic cash system proposed by an anonymous author in 2016. It combines several privacy-enhancing techniques initially envisioned for Bitcoin, such as Confidential Transactions ...
A Comparative Investigation of Approximate Attacks on Logic Encryptions
logic encryption SAT-based attack approximate attack
2017/10/12
Logic encryption is an important hardware protection technique that adds extra keys to lock a given circuit. With recent discovery of the effective SAT-based attack, new enhancement methods such as SA...
An Investigation of Sources of Randomness Within Discrete Gaussian Sampling
Lattice-based cryptography Discrete Gaussian sampling randomness
2017/4/11
This paper presents a performance and statistical analysis of random number generators and discrete Gaussian samplers implemented in software. Most Lattice-based cryptographic schemes utilise discrete...
Impossible differential cryptanalysis of LBlock with concrete investigation of key scheduling algorithm
Impossible differential cryptanalysis key recovery attack
2016/1/23
Impossible differential cryptanalysis has been proved to be one of the most powerful techniques to attack block ciphers. Based on the impossible differential paths, we can usually add several rounds...
An Investigation of Complex Operations with Word-Size Homomorphic Encryption
Homomorphic encryption word-size comparison
2015/12/18
Homomorphic encryption has progressed rapidly in both effi-
ciency and versatility since its emergence in 2009. Meanwhile, a multitude
of pressing privacy needs ?ranging from cloud computing to heal...
An Investigation of the Enhanced Target Collision Resistance Property for Hash Functions
Hash Functions Security Notions eTCR
2009/12/29
We revisit the enhanced target collision resistance (eTCR) property as a newly emerged notion of security for dedicated-key hash functions, which has been put forth by Halevi and Krawczyk at CRYPTO’06...
An Investigation of Enhanced Target Collision Resistance Property for Hash Functions: Implications, Separations, and Domain Extension
Hash Functions Security Property eTCR
2009/11/18
In this paper we investigate the newly emerged security property called the enhanced target collision
resistance (eTCR) for hash functions. eTCR property was put forth by Halevi and Krawczyk in Crypt...
Do We Need to Vary the Constants?Methodological Investigation of Block-Cipher Based Hash Functions
Hash Function Collision Attack Block Cipher
2009/1/7
The recent collision attacks on the MD hash function family
do not depend on the constants used in the function, but rather on
its structure (i.e., changing the constants will not affect the differe...