Symmetric cryptography, Other Subject

Symmetric Cryptography

Until recently, symmetric encryption techniques were used to secure information transmitted on public networks. Traditional, symmetric cryptographic systems are based on the idea of a shared secret. In such a system, two parties that want to communicate securely first agree in advance on a single "secret key" that allows each party to both encrypt and decrypt messages.

Symmetric cryptography has several drawbacks. Exchanging secret keys is awkward in large networks. Furthermore, the distribution of secret keys requires both senders and recipients to trust, and, therefore, to be recognizable with, every person they communicate with firmly. Also, symmetric systems need a secure channel to deal out the "secret" keys in the first place. If there is certainly such a secure channel, why not use it to send the entire secret message?

In today's Web-based systems concerning many transitory and participant's interactions with strong cryptography necessities, such symmetric key-based systems are highly not practical as a means for approving upon the necessary secrets to begin communicating firmly. This problem, the key contract, or key allocation problem, is part of a larger problem that is middle to the modern understanding of cryptographic systems-the key management problem (described in greater feature later in the chapter). Together, they represent the primary challenge in designing efficient cryptography systems for current computing systems. Symmetric key encryption plays an important role in the SSL protocol, along with asymmetric public key encryption.

Posted Date: 10/12/2012 8:18:02 AM | Location : United States







Related Discussions:- Symmetric cryptography, Assignment Help, Ask Question on Symmetric cryptography, Get Answer, Expert's Help, Symmetric cryptography Discussions

Write discussion on Symmetric cryptography
Your posts are moderated
Related Questions
WHAT IS B2G E-COMMERCE? Business-to-government e-commerce or B2G is generally described as commerce between companies and the public sector. It refers to the licensing procedur

What are the causes of Earthquake?

Question 1 Explain grading techniques along with its advantages and disadvantages Question 2 What is Block movement method? Explain the process of block movement method

Property' is a Relative Concept Since the physical, legal and moral conditions of excludability may vary according to time and circumstance, it becomes clear that the notion of

Journal Article Critical Analysis Utilizing the information gained from your reading of Chapters 4 and 5 of the text, critically analyze one of the scholarly articles found in The

formal approaches to sqa

what are the most preferred in industries between synthetic polyisoprene and natural rubber?

History of Documentaries: The earliest documentaries in the US and France were either short newsreels, instructional pictures, records of current events, or travelogues (termed ac

What is the type of egg in which yolk is absent?

Question 1: Explain clearly how Public Policy making, as a major task of Government, is concerned with the alleviation of social problems and the realization of human dignity.