搜索结果: 1-14 共查到“SPN”相关记录14条 . 查询时间(0.078 秒)
Bit-Sliding: A Generic Technique for Bit-Serial Implementations of SPN-based Primitives -- Applications to AES, PRESENT and SKINNY
Bit-serial implementations bit-slide lightweight cryptography
2017/6/26
Area minimization is one of the main efficiency criterion for lightweight encryption primitives. While reducing the implementation data path is a natural strategy for achieving this goal, Substitution...
将3D打印技术引入飞机备件供应保障，对其可行性进行分析，构建备件供应流程；由于供应过程中各阶段时间的不确定性，在引入3D打印技术前后均采用随机Petri网(Stochastic Petri Net,SPN)建立模型，并采用关联矩阵与状态方程法对模型的有效性进行分析；经分析，建立的模型是合理的。
It has been proved in Eurocrypt 2016 that if the details of the S-boxes are not exploited, an impossible differential and a zero-correlation hull can extend over at most 4 rounds of the AES. This pape...
FOAM: Searching for Hardware-Optimal SPN Structures and Components with a Fair Comparison
SPN lightweight cryptography figure of adversarial merit
2016/1/8
In this article, we propose a new comparison metric, the figure of adversarial merit (FOAM),
which combines the inherent security provided by cryptographic structures and components with their implem...
利用南北地震带南段密集流动地震台阵的观测数据，采用波形互相关方法拾取Pn波走时，应用滑动时窗相关法识别sPn震相，通过sPn与Pn震相之间的走时差测定了芦山地震序列中28个ML4.0级以上余震的震源深度.结果表明，震源深度集中在10~20 km范围内，垂直余震带的北西—南东向震源深度剖面揭示，余震分布表现出西深东浅的特点，倾角大约为39°.这些余震在空间上具有较好的线性分布特征，推测可能发生在与主...
SCARE of Secret Ciphers with SPN Structures
Side-Channel Attacks Reverse Engineering Substitution-Permutation Networks
2014/3/7
Side-Channel Analysis (SCA) is commonly used to recover secret keys involved in the implementation of publicly known cryptographic algorithms. On the other hand, Side-Channel Analysis for Reverse Engi...
Fault-propagation Pattern Based DFA on SPN Structure Block Ciphers using Bitwise Permutation, with Application to PRESENT and PRINTcipher
Fault-propagation pattern fault-propagation path differential fault analysis bitwise permutation SPN block cipher PRESENT PRINTcipher
2012/3/29
This paper proposes a novel fault-propagation pattern based differential fault analysis method - FPP-DFA, and proves its feasibility on SPN structure block ciphers using bitwise permutation, such as P...
Fault Propagate Pattern Based DFA on SPN Structure Block Ciphers using Bitwise Permutation, with Application to PRESENT and PRINTcipher
fault propagate pattern fault propagate path differential fault analysis bitwise permutation SPN block cipher PRESENT PRINTcipher
2011/2/24
PRESENT and PRINTcipher are two hardware-optimized ultra-lightweight block ciphers presented in CHES 2007 and CHES 2010, which is suitable for RFID tags and IC-Printing, the authors didn’t analyze the...
From Camellia to p-Camellia: Some Observations on MISTY Structure with SPN Round Function
Block ciphers Camellia p-Camellia Feistel MISTY SPN Structural properties
2011/1/5
At AFRICACRYPT 2010, a parallelized version of the block cipher Camellia, called p-Camellia, was proposed. The high level structure of p-Camellia is MISTY-type, while the round function is SPN-type. I...
Impossible Differential Cryptanalysis of SPN Ciphers
secret-key cryptography block ciphers SPN Rijndael ARIA linear transformation impossible differential
2010/7/13
Impossible differential cryptanalysis is a very popular tool for analyzing the security of modern block ciphers and the core of such attack is based on the existence of impossible differentials. Curre...
变迁特性服从不同分布的SPN最优路径序列寻找
蚁群算法 路经序列 可靠性
2009/10/22
现实中的很多问题可以建模为随机Petri网（SPN）的主干路径寻找问题。假设SPN中变迁所代表的单元是可修复的，变迁的可靠度服从威布尔分布，维修度服从对数正态分布，在此基础上提出广义维修时间的概念，并得到了单元稳态可用度、系统稳态可用度计算方法。为了获取该类SPN的主干路径，根据蚁群算法和SPN的特点提出了一种网络元素可以记录少量信息的带变迁可用度的SPNMA网。在SPNMA运行时，大量的托肯在S...
SPF、SPN环保型离心式污水泵机组
污水泵机组 堵塞 防咬材料 防止流场分析
2008/8/18
该产品叶片进口边加厚修圆，使纤维无法附着在叶片的进口处，抗长纤维能力强；改进泵的支撑方式和电机支座的结构，样机试验振动和噪音水平远优于国家标准；选用新型材料，采用含有S的RWA350制作密封环，使其具有很好的起动性；对流态进行有限元三元流动分析，使泵内流态压力、脉动较理想，泵的效率高，振动和噪音小；改进轴封结构型式以及采用先进加工工艺。该产品属于国内领先水平，基本达到国际先进水平，具有良好的社会...
在传统的数据库恶意事务修复方案的基础上，采用Petri网模型分析事务撤销冲突和操作执行序列异常检测；进而结合可生存性DBMS特征提出恶意事务静态和on-the-fly修复算法，并在此基础上给出随机Petri网恶意事务修复模型；在分析恶意事务修复随机Petri网模型和连续时间Markov链的一致性后，给出了连续时间Markov链的恶意事务修复模型求解.
SuperMap携手SPN荣获“2006’地理信息系统优秀工程”多项大奖
地理信息系统
2007/8/15
2006年8月23日至25日，第四届海峡两岸GIS发展研讨会暨中国GIS协会第十届年会在云南昆明召开，中国地理信息协会副会长、秘书长喻永昌等领导出席了大会。会议同时揭晓了“2006’地理信息系统优秀工程”评选获奖名单，由超图公司和广东蓝图、宁波中科等合作伙伴承建的项目共获得四项银奖工程和一项铜奖工程。此外，基于SuperMap GIS 平台开发的哈尔滨市地理信息公共服务平台项目获得银奖工程，济南市...