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

OCEANOLOGY, I want some information about oceanology

I want some information about oceanology

Economic anthropology, Economic Anthropology: Economic anthropology is a s...

Economic Anthropology: Economic anthropology is a scholarly field that attempts to explain human economic behavior in its widest historic, geographic and cultural scope. Economic

Academic project usually has two levels associated , It is important to not...

It is important to note that an academic project usually has two levels associated with it: the higher level which concerns the carrying out of a scholarly piece of work and the re

American government texas edition, i really need some help in college amer...

i really need some help in college american government book, "we the people ninth edition texas

#comppiler construction, Write semantic rules which convert Octal number to...

Write semantic rules which convert Octal number to decimal number for the following CFG. Also draw & evaluate the parse tree for the string (430507)8 Given CFG

Write a note about building the magazine article, Question 1 Write a long ...

Question 1 Write a long note on feature writing and summarise techniques for writing a good feature Question 2 Write a note about building the magazine article Question 3 Writ

Discuss the impact of mass media on gender roles, Question: (a) Althou...

Question: (a) Although advertising tries to convince you to buy a product or accept a message, advertising also shapes our attitudes about gender. Outline the six codes an

Communication theory as a field, Communication Theory as a Field: In the y...

Communication Theory as a Field: In the year of 1999 Craig wrote a landmark article "Communication Theory as a Field" which expanded the conversation about disciplinary identity i

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