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

Setting aims and objectives for an academic project, One source of confusio...

One source of confusion for students is the difference between an aim and an objective . The two are different although they are in fact linked. Unfortunately, the two terms are

Business Organization law, hi i want help in making of assignment of organi...

hi i want help in making of assignment of organization law

Voice translater topic, sir my quistion is,i want to project about english ...

sir my quistion is,i want to project about english voice translate into hindi voice.

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

Adolescene and Family education.., .Describe the role of school, parents an...

.Describe the role of school, parents and peers in imparting family life education.

Project, Complete the attached “GenRays Project Scope Document Template” fo...

Complete the attached “GenRays Project Scope Document Template” for the HRIS project.

Binary numbers in digital computers, discuss the elements in binary number...

discuss the elements in binary number in digital computers

Understanding the question, ""We like to think, in this country, that our m...

""We like to think, in this country, that our multicultural mosaic will help nudge us into a greater openness. But multiculturalism as we know it, indulges in stereotype, depends o

Problems related with credit card, Problems A smart card, join c...

Problems A smart card, join credit card and debit card properties. The 3 by 5 mm security chip surrounded in the card is exposed enlarged in the inset. The contact pads

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