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

Informaion technology, impacts of information technology in the developing ...

impacts of information technology in the developing countries

Cytokynesis., nuclear type endosperm developmny

nuclear type endosperm developmny

Managing communication , Chose an education institute which has not yet dep...

Chose an education institute which has not yet deployed a fully integrated management information system and design a “Learning management information system” to ensure efficient a

Abrupt behavior, Sammy is a teenager working at the "A&P" in the summer, ne...

Sammy is a teenager working at the "A&P" in the summer, near the beach, as a cashier. Three girls in bathing-suit are ready to check out and go through Sammy's isle at the "A&P" gr

B.ed, What is pragmatism and what should be the role of teacher according t...

What is pragmatism and what should be the role of teacher according ti it.

What is method of dominance, Question 1 Explain any five guidelines to be ...

Question 1 Explain any five guidelines to be followed for constructing frequency distribution Question 2 Explain Mode and the method of locating Mode by the Graphic Metho

Advantages of internet - services, Services Many services are now provi...

Services Many services are now provided on the internet such as job seeking, purchasing tickets for your favorite movies, online banking, guidance services on array of topics e

Nhs supplies, Pretend you are faced with the situation as it was in 1990, p...

Pretend you are faced with the situation as it was in 1990, prior to the decision to set up NHS Supplies, and you have been asked by the NHS to help it to improve its performance b

Angel of Death Gareth Williams Reading Guide, I could really use some help ...

I could really use some help with this reading guide for Angel of Death - The story of smallpox by Gareth Williams. My dad had a stroke 2 days ago and he needs 24/7 care and my mom

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