Operating Systems

RSA MD5Source Code (rsa algorithm in Visual C++ source code)

This C++ implementation of the RSA MD5 source code was provided by Langfine Ltd (http://www.langfine.com/). The working version of this code's program can be downloaded form their website.

MD5 v1.2

MD5 Library Source Code (MD5.dsw)
This Visual C++ project builds a static library that provides the MD5 calculation routines. The library will build to 'Release' or 'Debug' subfolders. Do not change this folder configuration if you wish to build the MD5 Test Program (see below).

MD5.dsp
MD5.dsw
MD5.opt
MD5.rc
MD5Checksum.cpp
MD5Checksum.h
MD5ChecksumDefines.h
resource.h
StdAfx.cpp
StdAfx.h

MD5 Test Program Source Code (MD5ChecksumTest.dsw)
This Visual C++ project builds an executable program that uses the MD5 library to calculate checksums. The executable will build to 'Release' or 'Debug' subfolders. The MD5 Library is a dependent subproject and so will build automatically before the test program. The MD5 library source code must be held in a folder named 'Code' which should be at the same level as the 'Test' folder. 

MD5About.cpp
MD5About.h
MD5ChecksumTest.cpp
MD5ChecksumTest.dsp
MD5ChecksumTest.dsw
MD5ChecksumTest.h
MD5ChecksumTest.opt
MD5ChecksumTest.rc
MD5ChecksumTestDlg.cpp
MD5ChecksumTestDlg.h
PerformanceLogDlg.cpp
PerformanceLogDlg.h
resource.h
StdAfx.cpp
StdAfx.h
Timers.cpp
Timers.h

(with thanks Nick Stone of http://www.langfine.com/)

RSA ALGORITHM

RSA MD5Source Code(rsa algorithm in Visual C++ source code)

RSA Algorithm program in JAVA (RSA Signature and Calculations) by Orlin from his java cryptography page

RSA Algorithm Implementation in C language

The Cigarette-Smokers Problem.

The Cigarette-smokers problem: Consider a system with three smoker processes and one agent process. Each smoker continuously rolls a cigarette and then smokes it. But to roll and cigarette and then smokes it. But to roll and smoke a cigarette, the smoker needs three ingredients: tobacco, paper and matches. One of the smoker processes has an infinite supply of all the three materials. The agent places two of the ingredients on the table. The smoker who has the remaining ingredient then makes the smokes a cigarette, signaling the agent on completion. The agent then puts out another two of the three ingredients, and the cycle repeats. Write a program to synchronize the agent and the smokers.