Find Jobs
Hire Freelancers

Cryptography Programming

₹1500-12500 INR

已取消
已发布超过 9 年前

₹1500-12500 INR

货到付款
In this folder you will find the following files: - tempdes.c : is a sample code for encrypting / decrypting using DES - temprsa.c : is a sample code for encrypting / decrypting using RSA - tempsha1.c : is a sample code for digest generation using SHA1 - [login to view URL],[login to view URL],[login to view URL]: are sample plain text files to test your code - [login to view URL],[login to view URL],[login to view URL]: are DES encrypted versions of files [login to view URL],[login to view URL],test3.txt. Key and IV values used are as follows. - Key = 40fedf386da13d57 (Hexadecimal values) - IV = fedcba9876543210 (Hexadecimal values) - [login to view URL]: Brief description of built in functions you are allowed to use. All the c codes can be compiled and executed using the following commands: - In the linux command line, execute "gcc -o tempdes tempdes.c -lcrypto", where tempdes.c is the source code and tempdes is the name of the executable that sill be generated This command will compile your code and generate an executable. - To execute the program you just created (tempdes in our example), in the linux command line write "./tempdes" The notion of cryptography consists of hiding secret information from untrusted peers by mangling messages into unintelligible text that only trusted peers can rearrange. In this project, we will use and compare three different techniques commonly employed to hide or encrypt information: secret key cryptography (DES), public key cryptography (RSA) and message digests (SHA-1). There is a group of built in functions that will help you complete this assignment. These functions are included in Openssl. Openssl is an open source toolkit that implements security protocols such as SSL but also includes a general purpose cryptography library which you will use. Openssl is usually part of most of the recent linux distributions.
项目 ID: 6734499

关于此项目

9提案
远程项目
活跃9 年前

想赚点钱吗?

在Freelancer上竞价的好处

设定您的预算和时间范围
为您的工作获得报酬
简要概述您的提案
免费注册和竞标工作
9威客以平均价₹12,829 INR来参与此工作竞价
用户头像
Hello I'm interesting your project very well I'm a Good C/C++,Crypt, Math, Algorithm expert. I m quite well experienced in these jobs. Let's go ahead with me I want to service for you continously. Thanks
₹14,000 INR 在3天之内
4.9 (422条评论)
8.5
8.5
用户头像
Hello, sir. I have enough experience in C programming. I can do your project. Thanks. Regards.
₹12,631 INR 在3天之内
4.9 (15条评论)
4.4
4.4
用户头像
I have MS in Information Security with research interest of Cryptography. I have implemented Cryptography algorithms in Java and C, written security solutions in J2EE and Java, have implemented datastructures in Java, and built two websites for research / proof-of-concept purposes. Additionally, ~2 years of IT experience. I have taken Graduate level courses in Cryptography and Security that dealt with analysis of Cryptographic protocols, my Masters level project involved design of a Cryptographic protocol for a specific authentication problem in three-party settings. I have executed a number of projects that focussed almost entirely / heavily on Cryptography. I have also written Cryptographically signed Java applet for a J2EE application. Details about projects executed available on request. You might want to go through reviews project creators left for me on freelancer.com, see https://www.freelancer.com/u/ciphe.html.
₹21,052 INR 在3天之内
5.0 (2条评论)
4.1
4.1
用户头像
A proposal has not yet been provided
₹18,888 INR 在9天之内
5.0 (1条评论)
1.6
1.6
用户头像
i have a goood experience of 3 years of coding your cryptographic code will not take much time to implement snd will be a work of max 5 hours you will be delivered with an elegant and documented code
₹7,777 INR 在3天之内
4.4 (1条评论)
0.4
0.4
用户头像
Hi, I have worked on many software projects like VLC player(which is built upon C & C++) during my masters and in the industries. I have my best grip on executing software projects within the given time. If you award this project to me I'll daily keep you updated on the project work. You can contact me, so that we can share much more details about this project. Thank you.
₹7,777 INR 在3天之内
5.0 (1条评论)
0.2
0.2
用户头像
I have done this sort of project for a friend in BTech. I was awarded by college for C/C++ programming and have won many national level competitions in same...
₹12,222 INR 在4天之内
0.0 (0条评论)
0.0
0.0
用户头像
I have experience in implementing crypto algorithms in c and c++ and kernel modules. let me know more about your project.
₹13,333 INR 在3天之内
0.0 (0条评论)
0.0
0.0

关于客户

INDIA的国旗
Hyderabad, India
5.0
1
付款方式已验证
会员自11月 15, 2014起

客户认证

谢谢!我们已通过电子邮件向您发送了索取免费积分的链接。
发送电子邮件时出现问题。请再试一次。
已注册用户 发布工作总数
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
加载预览
授予地理位置权限。
您的登录会话已过期而且您已经登出,请再次登录。