A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Pateriya, R. K.
- A Survey on Various Aspects of Quantum Cryptography
Authors
1 Department of Information Technology, Maulana Azad National Institute of Technology, Bhopal-462051, IN
2 CSE Department, Maulana Azad National Institute of Technology, Bhopal-462051, IN
3 Department of CSE, Maulana Azad National Institute of Technology, Bhopal-462051, IN
Source
Networking and Communication Engineering, Vol 2, No 7 (2010), Pagination: 206-212Abstract
In the era of information technology the need for secure communication has become increasingly important. Cryptography is a technology for creating the core of information security we use cryptography for making data secure which is the science of information protection from unauthorized interception and tempering. Most modern cryptographic studies design cryptosystems and algorithms using mathematical concepts which are based either on factorization or on discrete logarithm problem. In recent years quantum information research has lead to the discovery of a number of remarkable new paradigms for information processing and communication. These developments include quantum cryptography schemes that offer unconditionally secure information transport guaranteed by quantum-mechanical laws, which provide protection of system security, and optimization of system efficiency and detects intrusion and wiretap. Today quantum cryptography is used in various application for transferring secure data without the fear of keys being compromised. This paper reviews the various areas where quantum cryptography is successfully implemented, its advantages disadvantages & technical issues.
Keywords
Optical Fiber, Photon Polarization, Quantum Cryptography, Quantum Key Distribution.
- Improving SSL Server Performance While Preventing DOS Attack Using Reverse SSL with Client Puzzle
Authors
1 Maulana Azad National Institute of Technology, Bhopal (M.P.), IN
2 Maulana Azad National Institute of Technology, Bhopal (M.P.), IN
Source
Networking and Communication Engineering, Vol 1, No 5 (2009), Pagination: 228-233Abstract
Secure communication is an intrinsic requirement of today’s world of on-line transactions. SSL and its variant TLS are most widely acceptable protocol to create secure connection between the client/server communicating applications. Although SSL provides confidentiality, integrity of data and authentication of the communicating parties but imposes overhead on web server to perform costly cryptographic operations. Therefore it degrades the secure server performance compare to an insecure web server. Moreover an attacker can take dvantage of this overhead and can run automated scripts to generate bulk of requests, each request requires server to perform some costly computation therefore cause denial of service attack on server. So DOS makes highly desirable to improve performance of the SSL handshakes. This paper focuses on Reverse SSL approach with client puzzle to improve server performance.Reverse SSL is an extension of SSL that alleviate the performance cost at server by exchanging role of client and server. Reverse SSL combined the client puzzle to prevent DOS attack. The purpose of paper is to show how the Reverse SSL with client puzzle can be implemented using openssl library and how it improves server performance while preventing the DOS attack.