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

Report, 2. An old friend who now lives overseas had lent you some money to ...

2. An old friend who now lives overseas had lent you some money to help start a small business. Your business has been growing well. Write a report to your friend to tell him how y

marketing, little control over macro-environmen

little control over macro-environment

Applied behavior, For this week’s Learning Space Blog, start by looking at ...

For this week’s Learning Space Blog, start by looking at the table on page 461 of your Behavior Modification text. On your Blog, do your best to fill out this table for yourself,

Determine accurate and credible information, The Media's job is to report t...

The Media's job is to report the news. The consumer's job is to determine accurate, credible and truthful information to use in deciding political issues and character of politicia

Civil sit problems & its solution, two frames are not joint properly so cre...

two frames are not joint properly so create gap between two frames so material lick from this gap

Gender and legal issues, Gender and Legal Issues: Gender refers to the per...

Gender and Legal Issues: Gender refers to the personal sexual identity of an individual, regardless of the person's biological and outward sex. How people define masculinity and f

Psychology & geology, I have 2 online courses that i need assistance with. ...

I have 2 online courses that i need assistance with. PSYCHOLOGY & GEOLOGY both are ending in late april. Are you able to take the online quizes and test and exams for me?

Explain the meaning and concept of organizational culture, Question 1: ...

Question 1: (a) What is perception and discuss its importance? (b) Elaborate on the attribution theory and explain its consequence in judging the behaviors of people at wo

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