Mia always ()(draw) a picture in the afternoon. She ()(draw) a cat now.
第1题
截取一段明文如下:
The Mutual Information Analysis (MIA) is a generic side channel distingui she that has been introduced at CHES 2008. This paper brings three contributions with respect to its applicability to practice. First, we emphasize that the MIA principle can be seen as a toolbox in which different (more or less effective) statistical methods can be plugged in. Doing this, we introduce interesting altematives to the original proposal. Second, we discuss the contexts in which the MIA can lead to successful key recoveries with lower data complexity than classical attacks such as, eg. using Pearson's correlation coefficient. We show that such contexts exist in practically meaningful situations and analyze them statistically. Finally, we study the connections and differences between the MIA and a framework for the analysis of side- channel key recovery published at Eurocrypt 2009. We show that the MIA can be used to compare two leaking devices only if the discrete models used by an adversary to mount an attack perfectly correspond to the physical leakages.
忽略文中的数字和符号,试用(1.9)仿射密码加密。然后对密文进行破密。
第2题
A.find out
B.look into
C.search for
D.base on
第4题
This is what you should bear in mind: Don’t ___ a salary increase before you actually get it.
A) hang on B) draw on C) wait on D) count on
第5题
A.draw(booleanreserve,functioncallback)
B.createLinearGradient(numberx0,numbery0,numberx1,numbery1)
C.createCircularGradient(numberx,numbery,numberr)
D.createPattern(stringimage,stringrepetition)
第6题
A.①rd=BufferedReader("t1.txt"); ②str1=rd.readLine();
B.①rd=createReader("t1.txt"); ②str1=rd.readLine();
C.①rd=BufferedReader("t1.txt"); ②str1=rd.read();
D.①rd=createReader("t1.txt"); ②str1=rd.read();
第7题
A lot of ants are always invading my kitchen. They are a thorough ______ .
A) nuisanceB) troubleC)worryD) anxiety
第8题
Deserts and high mountains have always been a ______ to the movement of people from place to place.
A) barrier B) fence C) prevention D) jam
第9题
are a thorough ___________.
A) nuisance B) trouble
C) worry D) anxiety