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

Psych./Neuropsych. Assessment Integrated Report, Hello, I need assistance...

Hello, I need assistance on the Psychological and Neuropsychological Assessments Integrative Report Writing. There are 2 separate ‘Case Data’ (please note that these Case Data ar

Muscles, similarities between skeletal muscle smooth muscle an cardiac mus...

similarities between skeletal muscle smooth muscle an cardiac muscle

Analyzing the carbon dioxide record, We will investigate trends in the temp...

We will investigate trends in the temperature and CO 2 data sets. Clearly the CO 2 data shows a long-term trend, although a seasonal variation can also be seen. The long-term tre

Sociology, what method usually involves two or more countries or cultures t...

what method usually involves two or more countries or cultures that have several things in common but differ in one particular dimension?

Biomedical Engineering, In the processing of the antibiotic streptomycin, t...

In the processing of the antibiotic streptomycin, the drug is purified to 50 wt% in water. For application, including IV drips, the streptomycin must be diluted and a preservative

News report, how to write a news report ?

how to write a news report ?

American art journal, American Art (journal): American Art is a peer-revie...

American Art (journal): American Art is a peer-reviewed academic journal covering all aspects of past and present American visual art. The interdisciplinary journal has the fine a

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