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After the successful start of Run 3 in July this year, which featured proton-proton collisions at the record energy of 13.6 TeV, it was the turn of lead nuclei to circulate in the Large Hadron Collide...
At the Quark Matter conference today and at the recent Rencontres de Moriond conference, the LHCb collaboration presented an analysis of particle collisions at the Large Hadron Collider (LHC) that may...
MiMC and GMiMC are families of MPC-friendly block ciphers and hash functions. In this note, we show that the block ciphers MiMC-2n/n2n/n (or Feistel-MiMC) and univariate GMiMC are vulnerable to an att...
Plaintext Recovery Attacks against XTS Beyond Collisions
XTS Storage encryption Mode of operation
2019/7/17
XTS is an encryption scheme for storage devices standardized by IEEE and NIST. It is based on Rogaway's XEX tweakable block cipher and is known to be secure up to the collisions between the blocks, th...
Improved Low-Memory Subset Sum and LPN Algorithms via Multiple Collisions
time-memory trade-off representations parallel collision search
2019/7/15
For enabling post-quantum cryptanalytic experiments on a meaningful scale, there is a strong need for low-memory algorithms. We show that the combination of techniques from representations, multiple c...
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...
A kk-collision for a compressing hash function HH is a set of kk distinct inputs that all map to the same output. In this work, we show that for any constant kk, Θ(N12(1−12k−1))Θ(N12(1W...
Finding Collisions in a Quantum World: Quantum Black-Box Separation of Collision-Resistance and One-Wayness
post-quantum cryptography one-way permutation one-way trapdoor permutation
2018/11/12
Since the celebrated work of Impagliazzo and Rudich (STOC 1989), a number of black-box impossibility results have been established. However, these works only ruled out classical black-box reductions a...
IMAGE RELEASE:Shocking Results of Galaxy-Cluster Collisions（图）
Shocking Results Galaxy-Cluster Collisions
2017/11/23
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a cel...
Collisions and Semi-Free-Start Collisions for Round-Reduced RIPEMD-160
RIPEMD-160 semi-free-start collision collision
2017/8/29
In this paper, we propose an improved cryptanalysis of the double-branch hash function RIPEMD-160 standardized by ISO/IEC. Firstly, we show how to theoretically calculate the step differential probabi...
Collision Resistant Hashing for Paranoids: Dealing with Multiple Collisions
collision resistance multi collisions commitments
2017/6/1
A collision resistant hash (CRH) function is one that compresses its input, yet it is hard to find a collision, i.e. a x1≠x2x1≠x2 s.t. h(x1)=h(x2)h(x1)=h(x2). Collision resistant hash functions are on...
2017年第26届国际超临界重离子碰撞会议（XXVI international conference on ultrarelativistic heavy-ion collisions）
2017年 第26届 国际超临界重离子碰撞 会议
2017/1/12
Quark Matter 2017 is the XXVI international conference on ultrarelativistic heavy-ion collisions. The aim of this conference is to bring together theoretical and experimental physicists from around th...
In this paper we explore the intriguing factors involved in the non one-one nature of the RC4, and explore new techniques and present interesting findings regarding the same. The first part of this pa...
SPATIOTEMPORAL ANALYSIS FOR WILDLIFE-VEHICLE-COLLISIONS BASED ON ACCIDENT STATISTICS OF THE COUNTY STRAUBING-BOGEN IN LOWER BAVARIA
wildlife-vehicle-collisions dynamic risk management remote sensing data land use vegetation periods
2016/11/30
During the last years the numbers of wildlife-vehicle-collisions (WVC) in Bavaria increased considerably. Despite the statistical registration of WVC and preventive measures at areas of risk along the...
UW Study:Ancient Rocks of Tetons Formed by Continental Collisions
UW Study Ancient Rocks Tetons Formed Continental Collisions
2016/2/22
University of Wyoming scientists have found evidence of continental collisions in Wyoming’s Teton Range, similar to those in the Himalayas, dating to as early as 2.68 billion years ago.