Results 51 to 60 of about 2,245,906 (352)
Ring Signatures: Universally Composable Definitions and Constructions
IPSJ Digital Courier, 2007 Though anonymity of ring signature schemes has been studied in many literatures for a long time, these papers showed different definitions and there is no consensus. Recently, Bender et al. proposed two new anonymity definitions of ring signature which is stronger than the traditional definition, that are called anonymity against attribution attacks ...
Kazuki Yoneyama, Kazuo Ohta
openaire +2 more sources
ID-based ring signature on prime order group from asymmetric pairing
Tongxin xuebao, 2021 For the problem that the security proof was difficult to be realized under the standard model in the existing ID-based ring signature schemes, an ID-based ring signature scheme proven secure in the standard model was proposed.Firstly, the formal ...
Hongxia HOU +3 more
doaj +2 more sources
Coherent Backscattering of Ultracold Atoms [PDF]
, 2012 We report on the direct observation of coherent backscattering (CBS) of ultracold atoms, in a quasi-two-dimensional configuration. Launching atoms with a well-defined momentum in a laser speckle disordered potential, we follow the progressive build up of
A. Aspect +12 more
core +3 more sources
Geometrical (2+1)-gravity and the Chern-Simons formulation: Grafting, Dehn twists, Wilson loop observables and the cosmological constant [PDF]
, 2006 We relate the geometrical and the Chern-Simons description of (2+1)-dimensional gravity for spacetimes of topology $R\times S_g$, where $S_g$ is an oriented two-surface of genus $g>1$, for Lorentzian signature and general cosmological constant and the ...
A. Achucarro +32 more
core +2 more sources
Detecting transit signatures of exoplanetary rings using SOAP3.0 [PDF]
, 2017 CONTEXT. It is theoretically possible for rings to have formed around extrasolar planets in a similar way to that in which they formed around the giant planets in our solar system. However, no such rings have been detected to date. AIMS: We aim to test
Akinsanmi, B. +3 more
core +1 more source
Certificateless Network Coding Ring Signature Scheme
Secur. Commun. Networks, 2021 Traditional certificateless ring signature is not suitable for the network coding environment. In this view, a new certificateless network coding ring signature (CL-NCRS) is devised by using the techniques of multisource network coding and ...
Hui-fang Yu, Weike Wang
semanticscholar +1 more source
When does the F-signature exist? [PDF]
, 2005 This is a preprint of an article published in the Annales de la Faculte des Sciences de Toulouse, 15 (2006), 195-201.We show that the F-signature of an F-finite local ring R of characteristic p > 0 exists when R is either the localization of an N-graded ...
Aberbach, Ian M., Enescu, Florian
core +2 more sources
Efficient Linkable Ring Signature Scheme [PDF]
Jisuanji gongchengA linkable ring signature, which is a special type of ring signature, can aid in verifying whether two signatures have been signed by the same user, without compromising anonymity. This feature enables it to play an important role in blockchains. However,
ZHAO Jiangdong, CHEN Hu, WANG Xiaoyi
doaj +1 more source
A Ring-LWE-based digital signature inspired by Lindner–Peikert scheme
Journal of Mathematical Cryptology, 2022 In this article, we give a digital signature by using Lindner–Peikert cryptosystem. The security of this digital signature is based on the assumptions about hardness of Ring-LWE and Ring-SIS problems, along with providing public key and signature of ...
Sharafi Javad, Daghigh Hassan
doaj +1 more source
Aharonov-Bohm oscillations in the presence of strong spin-orbit interactions [PDF]
, 2007 We have measured highly visible Aharonov-Bohm (AB) oscillations in a ring structure defined by local anodic oxidation on a p-type GaAs heterostructure with strong spin-orbit interactions. Clear beating patterns observed in the raw data can be interpreted
Andreas D. Wieck +7 more
core +1 more source