搜索结果: 1-14 共查到“repairing”相关记录14条 . 查询时间(0.042 秒)
The Rush Dilemma: Attacking and Repairing Smart Contracts on Forking Blockchains
blockchain forks smart contracts secure computation
2019/8/6
We investigate the security of smart contracts within a blockchain that can fork (as Bitcoin and Ethereum). In particular, we focus on multi-party computation (MPC) protocols run on-chain with the aid...
Bernstein Bound on WCS is Tight - Repairing Luykx-Preneel Optimal Forgeries
Authenticator WCS GCM
2018/6/5
In Eurocrypt 2018, Luykx and Preneel described hash-keyrecovery
and forgery attacks against polynomial hash based WegmanCarter-Shoup
(WCS) authenticators.
To strengthen the resistance of countermeasures based on secret sharing, several works have suggested to use the scheme introduced by Shamir in 1978, which proposes to use the evaluation of a random d...
Decaying urban spaces are common in post-industrial New England. When manufacturing activities withdrew from New England they left holes in the urban fabric. Physical absence of these former economic ...
Application of hard surfacing for repairing of agricultural parts
repairing cladding share abrasive wear
2014/2/24
h e contribution deals with the analysis of claddings quality realised by shielded metal arc welding with covered electrodes. For cladding, covered basic electrodes marked as E Z Fe 8 EN 14700 and E Z...
The classical sinus lift procedure is a well-documented technique and Schneiderian membrane perforation is one of the most common complications. Various repairs have been developed for managing sinus ...
Tribological Properties and Self-Repairing Effect of Palygorskite /Copper Nanocomposites as Lubricating Oil Additive
Nano Composite Nano-Copper Nano-Palygorskite Self-Repairing Film Wear
2011/11/14
Palygorskite/copper nanocomposites were prepared in order to study the friction behaviour and self-repairing effect of HT200 tribopair. The friction and wear behaviors of the lubricant oil containing ...
'Self-repairing' photovoltaics not damaged by the Sun（图）
'Self-repairing' photovoltaics the Sun
2010/9/21
Researchers at the Massachusetts Institute of Technology have fabricated the first synthetic photovoltaic cell capable of repairing itself. The cell mimics the self-repair system naturally found in pl...
A Comparison between Amalgam and MTA in Repairing Furcal Perforation
Inflammation mineral trioxide aggregate Dental Amalgam
2009/12/18
Objective: The purpose of this study was to investigate the histological response to delib-erate perforation repaired using amalgam or MTA either immediately or with delay on cats’ molars.
Materials ...
A Histological Comparison between Amalgam and MTA in Repairing Furcal Perforation
Dental Sac Molar Third pathology
2009/12/18
Objective: The aim of the present study was to histopathologically evaluate follicular tissues of third molars with pericoronal radiolucenciesof less than 2 millimeters.
Materials and Methods: In thi...
Breaking and Provably Repairing the SSH Authenticated Encryption Scheme: A Case Study of the Encode-then-Encrypt-and-MAC Paradigm
Authenticated Encryption Secure Shell SSH
2009/4/14
The Secure Shell (SSH) protocol is one of the most popular cryptographic protocols on the
Internet. Unfortunately, the current SSH authenticated encryption mechanism is insecure. In
this paper, we p...
Breaking and Repairing Optimistic Fair Exchange from PODC 2003
Optimistic Fair Exchange PODC multisignature schemes
2009/4/9
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair
exchange, based on RSA signatures. We show that their protocol is totally breakable already in the registration...
Breaking and Repairing Trapdoor-free Group Signature Schemes from Asiacrypt 2004
Trapdoor-free Group Signature Schemes
2009/2/5
Group signature schemes allow a member of a group to sign messages anonymously
on behalf of the group. In the case of later dispute, a designated group manager can revoke the
anonymity and identify ...
修船是维持船舶继续航运而进行简单再生产的最重要、最基本的手段。各类型的船舶由于用途不同，其结构性能差异很大，所规定的船舶使用寿命也不相同。我国交通主管部门规定：油轮、散货船和干货船的使用寿命分别为15年、20年和25年。