第6章数字签名习题 1.在DSS数字签名标准中,取p=83=2×41+1,q=41,h=2,于是g=2=4mod83,若取x=57,则y=gx=47=77mod83。在对消息M=56签名时,选择k=23,计算签名并进行验证。 2.在DSA签字算法中,参数k泄露会产生什么后果?

设计受弯构件时,一般应满足下列两方面要求 (1)由于弯矩M的作用,构件可能沿某个正截面(与梁的纵轴线或板的中面正交时的面)发生破坏,故需进行正截面强度计算。 (2)由于弯矩M和剪力Q的共同作用,构件可能沿剪压区段内的某个斜截面发生破坏,故需进行斜截面强度计算

Plan for the session Q Questions Complete some random topics Lecture on design of dynamic systems (Signal/Response Systems Recitation on hw#5? 16.881

d d2+p(x)+Q(x)y=f(x)二阶线性微分方程 当f(x)=0时,二阶线性齐次微分方程 当f(x)≠0时,二阶线性非齐次微分方程

编程题答案 case'q:[16]++;break; case'r: PP[17]++;break; int i; 第1题答案 case's: pp[18]++;break; float s=1.0, =1.0; int fun(int score[],int m, int below[) case't: pp[ 19]++; break;

第十五章电路方程的矩阵形式 本章教学重点 (1)图的矩阵表示 关联矩阵A单连支回路矩阵B单树支割集矩阵Q (2)矩阵形式的KCL、KVL (3)结点电压方程的建立

第4节理想气体绝热过程 绝热过程:d=0,Q=0 一、准静态绝热过程

Uint I. Basic listening Practice 1. Script M: Third World countries must improve their economies if they want to raise their W: But how can they do that when developed countries control world trade? Q: Which of the following is true?

Flying there is not half the fun I. Basic listening Practice I Script M: would you prefer a window or an aisle seat, madam? W: Aisle, please. If there's none left, then a wind. w seat is Ok. But I don't like middle seats。 Q: what is the order of the womans preference? C: aisle-wingdow-minddle

Basic listening Practice 1. Script W: Let me recommend my brother to you. He's really done well in the stock market over the last M: The real question is this: How have you dine by taking his advice Q: What does the man mean?