Find Jobs
Hire Freelancers

RSA Homework

$30-5000 USD

Imeghairiwa
Imechapishwa almost 19 years ago

$30-5000 USD

Kulipwa wakati wa kufikishwa
I need a simple console-based program and a PHP script written, using OpenSSL library. **Sample code attached to jumpstart your work!** Should be an easy job if you know OpenSSL. Just a few straightforward function calls. A. PHP script: [login to view URL] Input: n-bit buffer - DATABUF Output: public key - PUBKEY, signature of the signed n-bit buffer - SVRSIG 1) Generates a pair of n-bit long RSA keys: PUBKEY and PRIKEY (n is an arbitrary integer specified as a define in the script) 2) Sign the DATABUF with the PRIKEY 3) Write DATABUF, PRIKEY, PUBKEY, SVRSIG to RSA_TABLE (see Design Notes #4 below) 4) return PUBKEY, SVRSIG to the client B. MSVC71 console program: 1) Generate a random n-bit buffer. (n is an arbitrary integer specified in #define) 2) Post the buffer to [login to view URL] 3) Use the returned PUBKEY to verify the returned SVRSIG to make sure it is authentic Looking for quick turnaround. Thanks for your help! Design Notes: 1) No encryption of the private key or fancy encoding required for A(1). 2) I don't have access to the /tmp directory on the web server so please don't write anything there. 3) Please use the PHP OpenSSL extension. Do not make system call to openssl in php. 4) Structure for RSA_TABLE: CREATE TABLE `RSA_TABLE` ( `ID` int(11) NOT NULL auto_increment, `DATABUF` mediumtext NOT NULL, `PRIKEY` mediumtext NOT NULL, `PUBKEY` mediumtext NOT NULL, `SVRSIG` mediumtext NOT NULL, PRIMARY KEY (`ID`) ) TYPE=MyISAM AUTO_INCREMENT=1 ; 5) The attached sample code provided has not been tested. It is just provided as a reference. ## Deliverables a) Client console program must be in complete MSVC71 solution. b) Server php script will run on LAMP, PHP on web server has OpenSSL package installed. 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform [login to view URL] 2003 PHP MySQL OpenSSL extension on PHP OpenSSL library for C++
Kitambulisho cha mradi: 3773865

Kuhusu mradi

pendekezo 1
Mradi wa mbali
Inatumika 19 yrs ago

Unatafuta kupata pesa?

Faida za kutoa zabuni kwenye Freelancer

Weka bajeti yako na muda uliopangwa
Pata malipo kwa kazi yako
Eleza pendekezo lako
Ni bure kujiandikisha na kutoa zabuni kwa kazi
1 mfanyakazi huru ana zabuni kwa wastani $26 USD kwa kazi hii
Picha ya Mtumiaji
See private message.
$25.50 USD ndani ya siku 14
5.0 (15 hakiki)
2.5
2.5

Kuhusu mteja

Bedera ya UNITED STATES
United States
5.0
23
Mwanachama tangu Apr 19, 2005

Uthibitishaji wa Mteja

Asante! Tumekutumia kiungo cha kudai mkopo wako bila malipo kwa barua pepe.
Hitilafu fulani imetokea wakati wa kutuma barua pepe yako. Tafadhali jaribu tena.
Watumiaji Waliosajiliwa Jumla ya Kazi Zilizochapishwa
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Onyesho la kukagua linapakia
Ruhusa imetolewa kwa Uwekaji wa Kijiografia.
Muda wako wa kuingia umeisha na umetoka nje. Tafadhali ingia tena.