Results 151 to 160 of about 12,741,900 (205)

Nekropolis: a cross-domain dataset of computer-science retractions and AI-governance lifecycle records (2018-2026). [PDF]

Data Brief
Sokolov A.
europepmc   +1 more source

A hybrid hash framework for post quantum secure zero knowledge identification. [PDF]

Sci Rep
Bhadane S, Gupta D, Deshmukh PV, Mishra N.   +3 more
europepmc   +1 more source

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Quantum Collision Attacks on Reduced SHA-256 and SHA-512

Lecture Notes in Computer Science, 2021
In this paper, we study dedicated quantum collision attacks on SHA-256 and SHA-512 for the first time. The attacks reach 38 and 39 steps, respectively, which significantly improve the classical attacks for 31 and 27 steps. Both attacks adopt the framework of the previous work that converts many semi-free-start collisions into a 2-block collision, and ...
Akinori Hosoyamada
exaly   +4 more sources

Analysis of simplified variants of SHA-256. [PDF]

, 2005
In this paper we analyse the role of some of the building blocks of SHA-256. We show that the disturbance-correction strategy is applicable to the SHA-256 architecture and we prove that functions Σ, σ are vital for the security of SHA-256 by showing that for a variant without them it is possible to find collisions with complexity 2^64 hash operations ...
Matusiewicz, Krystian, Pieprzyk, Josef, Pramstaller, Norbert, Rechberger, Christian, Rijmen, Vincent   +4 more
core   +3 more sources

An FPGA Based SHA-256 Processor

2002
The design, implementation and system level performance of an efficient yet compact field programmable gate array (FPGA) based Secure Hash Algorithm 256 (SHA-256) processor is presented. On a Xilinx Virtex XCV300E-8 FPGA, the SHA-256 processor utilizes 1261 slices and has a throughput of 87 MB/s at 88 MHz.
Kurt K. Ting, Steve C. L. Yuen, Kin-Hong Lee, Philip Heng Wai Leong   +3 more
openaire   +2 more sources

A Configurable Implementation of the SHA-256 Hash Function

2019
This paper proposes a hardware solution for the SHA-256 hash function offering a number of configurable architecture-level features. This flexibility allows for exploring various trade-offs between performance, area occupation, and power consumption. As confirmed by the experimental results, the approach succeeds in exposing the effects of different ...
Martino, Raffaele, Cilardo, Alessandro
openaire   +2 more sources