Symmetric cryptography, Other Subject

Assignment Help:

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.


Related Discussions:- Symmetric cryptography

American government, list two ways in which custom has influenced the gover...

list two ways in which custom has influenced the government.

Data encryption standard (des), Data Encryption Standard DES The Data E...

Data Encryption Standard DES The Data Encryption Standard (DES) specifies a FIPS accepted cryptographic algorithm as essential by FIPS 140-1. This publication provides a comple

Electricity, when do we use the rule power equal voltage times intencity?

when do we use the rule power equal voltage times intencity?

Is there a feminist methodology?, Is there a Feminist Methodology? The ...

Is there a Feminist Methodology? The question of whether feminism has developed distinct methodological principles that could justify the establishment of a distinct methodolog

Fire prevention, introduction topic for fire prevention

introduction topic for fire prevention

Transportation, Please name a country (eg Venice) that uses special transpo...

Please name a country (eg Venice) that uses special transportation (boats in Venice) and a reason (canals)

Culture, Culture: Culture refers to the knowledge; ways of thinking, fe...

Culture: Culture refers to the knowledge; ways of thinking, feeling and behaving that give each society its coherence and its distinctive way of life. Culture is demonstrated b

Major approaches and movements in film theory, What is film theory? Please ...

What is film theory? Please provide me report on Major approaches and movements in film theory. It is about 2000 words count report on topic Major approaches and movements in film

Interactive web, Interactive Web Web has a client/server structural...

Interactive Web Web has a client/server structural design, where a browser runs on the client such as Microsoft Explorer or Netscape and a Web server like Apache server run

Discuss the features of various types of state, Question 1 What are the Ri...

Question 1 What are the Rights of Citizenship in USA according to the Constitution? Question 2 Write a note on the importance of justice in twenty-first century USA Quest

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd