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

Water in digestion process, Water makes up about 66 percent of the human bo...

Water makes up about 66 percent of the human body and hence is vital for the body. • Water helps to remove the dangerous toxins that our body takes in from the air, the food and

Interior Design- PESTEL Analysis?, Hi I would Like to know all external inf...

Hi I would Like to know all external influences Of Interior Design- PESTEL Analysis?

#title.introduction to explosive, #question.give me a broad detail the reac...

#question.give me a broad detail the reaction rates of different explosives and use this characteristics as a means of classifying explosives into different types.

Informative speech, To write an informative speech for presentation on "The...

To write an informative speech for presentation on "The importance of pre-school education in Singapore"

Overtaking rules - traffic congestion, Overtaking Rules - Traffic Congestio...

Overtaking Rules - Traffic Congestion Overtaking needs an appropriate consideration and efficiency because the driver will use the other lane and increase the speed. The negli

Future evolution of electronic currency, FUTURE EVOLUTION The major foc...

FUTURE EVOLUTION The major focuses of digital cash development are 1) being proficient to use it throughout a wider range of hardware for example secured credit cards; and

OK, WHEN WERE AFRICAN AMERICANS REMOVED FROM OFFICE IN GEORGIA .

WHEN WERE AFRICAN AMERICANS REMOVED FROM OFFICE IN GEORGIA .

Paradoxical role of the immune system, 1) Discuss the implications of stres...

1) Discuss the implications of stress on the CV system and cancer development. 2) Explain the paradoxical role of the immune system, including the inflammatory response, in tumo

Linear algebra assignment, I have a linear algebra assignment/coursework (i...

I have a linear algebra assignment/coursework (it''s about affine sets and mappings), but I don''t have the time to do the rest of it (I have done only one question and one part of

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