RSA算法 :首先, 找出三个数, p, q, r, 其中 p, q 是两个相异的质数, r 是与 (p-1)(q-1) 互质的数...... p, q, r 这三个数便是 person_key，接著, 找出 m, 使得 r^m == 1 mod (p-1)(q-1)..... 这个 m 一定存在, 因为 r 与 (p-1)(q-1) 互质, 用辗转相除法就可以得到了..... 再来, 计算 n = pq....... m, n 这两个数便是 public_key ，编码过程是, 若资料为 a, 将其看成是一个大整数, 假设 a < n.... 如果 a >= n 的话, 就将 a 表成 s 进位 (s
标签： person_key RSA 算法
上传时间： 2013-12-14
上传用户：zhuyibin
现代谱估计用莱文森-德宾(Levinson-Durbin)算法求解尤利-沃克(Yule-Walker)方程。 形参说明： r:双精度实型一维数组，存放Yule-Walker方程的元素r(0),r(1),...r(p)。 p:AR模型阶数。 a:AR模型系数a(0),a(1),...a(p)。 v:预测误差功率
标签： Levinson-Durbin Yule-Walker 谱估计 算法
上传时间： 2014-01-26
上传用户：ippler8
The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts.
标签： Channel Multipath simulates described
上传时间： 2015-05-08
上传用户：水中浮云
This a demo illustrating (1) 8-bit CRC check sums, (2) 57600,N,9,1 communications, and (3) RS-422/RS-485 communications.
标签： communications illustrating 57600 check
上传时间： 2014-01-06
上传用户：yiwen213
Simple SunPlus SP54 codec converter and a more playable mode MJPG. untar the archive go to the relevant directory to compile: just do make to install: with root account cp sp54convert /usr/local/bin to use: sp54convert infile outfile Enjoy !! Michel Xhaard <mxhaard@users.sourceforge.net> Till Adam <till@hubbahubba.de> Windows port: Piotr Pawlow <pp@siedziba.pl>
标签： converter the playable SunPlus
上传时间： 2013-12-30
上传用户：1079836864
加密算法 Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives: - To generate an RSA key cryptest g - To encrypt and decrypt a string using RSA cryptest r - To calculate MD5, SHS, and RIPEMD-160 message digests: cryptest m file - To encrypt and decrypt a string using DES-EDE in CBC mode: cryptest t - To encrypt or decrypt a file cryptest e|d input output - To share a file into shadows: cryptest s <pieces> <pieces-needed> file (make sure file has no extension, if you re running this under DOS) - To reconstruct a file from shadows: cryptest j output file1 file2 [....] - To gzip a file: cryptest z <compression-level> input output - To gunzip a file: cryptest u input output - To run validation tests: cryptest v - To run benchmarks: cryptest b [time for each benchmark in seconds]
标签： Cryptographic Primitives generate Library
上传时间： 2015-07-16
上传用户：wqxstar
zemax源码： This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surface also demonstrates a user-defined apodization filter The filter is defined as part of the real ray trace, case 5 The filter can be used at the stop to produce x-y Gaussian apodization similar to the Gaussian pupil apodization in ZEMAX but separate in x and y. The amplitude apodization is of the form EXP[-(Gx(x/R)^2 + Gy(y/R)^2)] The transmission is of the form EXP[-2(Gx(x/R)^2 + Gy(y/R)^2)] where x^2 + y^2 = r^2 R = semi-diameter The tranmitted intensity is maximum in the center. T is set to 0 if semi-diameter < 1e-10 to avoid division by zero.
标签： standard surface models either
上传时间： 2013-12-05
上传用户：003030
R+树的c实现源码，对应文章T. K. Sellis, N. Roussopoulos, C. Faloutsos: The R+-Tree: A Dynamic Index for Multi-Dimensional Objects.
上传时间： 2014-05-25
上传用户：sunjet
假定已经有许多应用采用了程序1 - 1 5中所定义的C u r r e n c y类，现在我们想要对C u r r e n c y类 的描述进行修改，使其应用频率最高的两个函数A d d和I n c r e m e n t可以运行得更快，从而提高应 用程序的执行速度。由于用户仅能通过p u b l i c部分所提供的接口与C u r r e n c y类进行交互，
上传时间： 2015-10-11
上传用户：BIBI
ch451 CH451 ?-|I￠…OA¨…(R)à?DIG0÷DIG7￡μ÷–““? ?>>μ￡ ±‰“??>>μ￡°CH451?aefl￥μ￡<<?￡o…÷”<<0.5 ”￠￥ 2 ”￠μ -|I<<?“? SEG6°SEG0±‘ -|< G° A￡ <<?“? SEG7 ‘ -|I– μ￡<<?“? DIG7°DIG0± 8 ^ ?-|“ o￡CH451“o…￡8°8aeyμ￠oLED’￡aú64?￡￠<CH451a o…“‘O(R)?<<??÷ ?-|I<￡¨￥-|÷Sflμ? ?-|
上传时间： 2014-01-04
上传用户：顶得柱
