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

Cytokynesis., nuclear type endosperm developmny

nuclear type endosperm developmny

Management Information Systems, Does the experts have any knowledge with MI...

Does the experts have any knowledge with MIS and security issues

Biology, When naming the sample sugars,the ending used is what?

When naming the sample sugars,the ending used is what?

Explain any five natural disasters, Question 1 Explain five distinct zones...

Question 1 Explain five distinct zones of the atmosphere Question 2 Explain any five natural disasters Question 3 Explain any five effects of Air Pollutants

Need of privatization of public sector undertakings, Q. Why Privatization o...

Q. Why Privatization of Public Sector Undertakings are requied? The private sector was allowed to set up business with government control over their functioning. There was howe

Lifestyle, Lifestyle: Lifestyle is a way of living of individuals, familie...

Lifestyle: Lifestyle is a way of living of individuals, families (households), and societies, which they manifest in coping with their physical, psychological, social, and economi

Define chi-square test, Question 1 State the advantages and disadvantages ...

Question 1 State the advantages and disadvantages of quantitative techniques Question 2 List down the guidelines for constructing a frequency distribution Question

River system, what is meant by river system? what are the river systems in ...

what is meant by river system? what are the river systems in India? mention the names of river systems in India? what are the advantages or disadvantages of river system?

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