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string-data-encryption
Data Encryption by Matrix Multiplication
We will only use numbers 0 to 26 for the encryptive mathematics operation. Numbers from 1 to 26 are for letters from A to Z and 0 is for all non-letter characters. To minimize usage of numbers, all letters are converted to upper case. The original message is converted to number array according to the ASCII table and minus 64. We partition whole array into blocks of 8 numbers. The last block may be added several zeros. Then multiply each block by the an 8x8 matrix A which is invertible in Z27 to get cipher data. The decryption is the same process except to use its inverse matrix B. For good visual reading, we convert all non-letter characters to under score for the decryption.
- 2012-06-24 02:58:53下载
- 积分:1
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prime2.c
Prime number program. Edit v2. Written in C
- 2015-03-21 20:05:09下载
- 积分:1
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hydraulic-turbine-governing
利用matlab/simulink搭建了水轮机调速系统模型,考虑了频率死区和速率限制(model the hydraulic turbine governing system by matlab/simulink, considering the dead band and ramp limit )
- 2021-01-12 19:58:49下载
- 积分:1
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11
说明: 应届生大礼包-大唐电信篇,希望对大家有用。(Fresh Johnson Plaza Li Bao- Datang Telecom articles, want to be useful to everyone.)
- 2009-11-18 20:00:31下载
- 积分:1
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MATLAB6.0_math
MATLAB6.0数学手册 复合版.doc
MATLAB6.0数学手册 复合版.doc(Mathematics MATLAB6.0 composite version of the manual. DocMATLAB6.0 mathematics composite version of the manual. Doc)
- 2008-05-14 12:20:45下载
- 积分:1
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shiyan1
Matlab通信系统的建模仿真
实验一 模拟通信系统的建模仿真(matlab)
- 2009-12-22 12:16:01下载
- 积分:1
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modulation
基于MATLAB实现数字通信系统中的各种调制方式(MATLAB-based digital communication systems of the various modulation)
- 2010-05-10 16:32:41下载
- 积分:1
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matchain
It implements the matrix chain multiplication
- 2015-01-11 22:21:40下载
- 积分:1
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SVMluzhenbo
SVM-matlab故障诊断程序SVM-matlab故障诊断程序(SVM-matlab process fault diagnosis fault diagnosis SVM-matlab program)
- 2009-04-18 17:06:45下载
- 积分:1
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butter_homomorphic
同态滤波算法对心音信号的包络提取,提取的包络自适应强,包络更光滑(heart sound envelop extraction based on
Frequency Alterable Homomorphic Filtering, the envelop is more adaptive and smoother.)
- 2013-05-25 19:15:09下载
- 积分:1