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

What are research variable, When designing research, variables may be speci...

When designing research, variables may be specified three ways: 1. DEPENDENT VARIABLE, operationalized two ways: Continuous variable "DV" Example: Body Mass Index, compute

HVAC Testing, how do I download flash cards for this course

how do I download flash cards for this course

Globalisation, cultural dimensions of globalisation

cultural dimensions of globalisation

Explain stages of moral development, Question 1: (a) (i) Briefly descr...

Question 1: (a) (i) Briefly describe the six stages of moral development as elaborated by Lawrence Kohlberg. (ii) Highlight some criticisms leveled against Kohlberg's theo

Psychology, what would be a negative correlation between tall and short peo...

what would be a negative correlation between tall and short people and driving speed

Illustrate how miranda might be counselled, Client: Miranda 30 year old fem...

Client: Miranda 30 year old female, completed her higher school certificate at the age of 19, and is now a housewife. She married a foreigner and has two children, the elder a son

Cargo management, Cargo Management: Project Name : Cargo Management ...

Cargo Management: Project Name : Cargo Management Role : Managing & Leading the Team. Involved in Gathering, Estimation, System Design, Database Design. Documentation

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

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