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

Naturalism, Naturalism: Artists of the Italian Renaissance targeted to rep...

Naturalism: Artists of the Italian Renaissance targeted to represent nature and figures more realistically than medieval artists. They made close studies of nature & the human bod

Future trends in integrated library systems, Future Trends in Integrated Li...

Future Trends in Integrated Library Systems: The definition of an integrated system is starting to change from a system that shares bibliographic records amongst modules and local

Differential amplifier, derivation of differential voltage gain for dual in...

derivation of differential voltage gain for dual input unbalanced output

Science, what is nuclear fission?

what is nuclear fission?

Explain the distinction between the state and the government, QUESTION 1 ...

QUESTION 1 (a) Explain the distinction between the State and the Government. (b) Discuss how this distinction would be calibrated under a Liberal and a Totalitarian system.

Composition 2, 1. explain why it is important to put observations in writin...

1. explain why it is important to put observations in writing. How can observation enrich our writing? 2. At what point could making an observation halt or obstruct the writing pr

Psychology, what would be a negative correlation between tall and short peo...

what would be a negative correlation between tall and short people and driving speed

Anecdote, give example of anecdote

give example of anecdote

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