搜索结果: 1-5 共查到“Sbox”相关记录5条 . 查询时间(0.031 秒)
Non-Full Sbox Linearization: Applications to Collision Attacks on Round-Reduced Keccak
Keccak SHA-3 hash function
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2017/6/8
The Keccak hash function is the winner of the SHA-3 competition and became the SHA-3 standard of NIST in 2015. In this paper, we focus on practical collision attacks against round-reduced Keccak hash ...
A new criterion for avoiding the propagation of linear relations through an Sbox (Full version)
secret-key cryptography / Sbox Boolean function hash functions
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2013/4/18
In several cryptographic primitives, Sboxes of small size are used to provide nonlinearity. After several iterations, all the output bits of the primitive are ideally supposed to depend in a nonlinear...
Super-Sbox Cryptanalysis:Improved Attacks for AES-like permutations
hash function cryptanalysis AES
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2009/11/18
In this paper, we improve the recent rebound and start-from-the-middle
attacks on AES-like permutations. Our new cryptanalysis technique uses the fact that
one can view two rounds of such permutatio...
文章摘要：
利用直流磁控反应溅射法在不同氧分压下制备了SbOx薄膜，对退火前后薄膜的X射线衍射(XRD)分析表明，退火后薄膜结构发生了从非晶态向晶态的转变。利用示差扫描量热法(DSC)测出不同升温速度条件下非晶态薄膜粉末的晶化峰温度，用Kissinger公式计算了材料的结晶活化能。计算结果表明，随着溅射时氧分压的增加，薄膜的结晶活化能增加，而相应的非晶态与晶...
SbOx+SnO2中间层对Ti/MnO2电极性能的影响
中间层 二氧化锰 加速寿命 电化学阻抗谱
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2010/1/20
采用热分解方法制备了含SbOx+SnO2中间层的钛基二氧化锰电极. 在0.5 mol·L-1 H2SO4溶液中对添加和没有添加SbOx+SnO2中间层的二氧化锰阳极进行了加速电解试验. 采用极化曲线和循环伏安曲线测量电极的析氯反应. 用循环伏安曲线和电化学阻抗谱来分析电极电解过程中内部结构和表面的变化. 结果表明, 二氧化锰阳极钝化失效的主要原因是绝缘的TiO2层的生成和变厚. 引入中间层可以降低...