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

Accusative case, It has been proposed that Np needs case because they need ...

It has been proposed that Np needs case because they need to be visible in order to receive a theta role, Discuss the problem raised for this approach by the following sentence: It

Hypothesis model, Suppose we believe the effect of prenatal visits is diffe...

Suppose we believe the effect of prenatal visits is different for whites and blacks. Write down a new model incorporating this hypothesis. Clearly define any new variables require

Security considerations in electronic fund transfer, SECURIT Y CONSIDERATI...

SECURIT Y CONSIDERATIONS Informatio n security is a way of protecting information and information systems from illegal use, disclosure, access, disruption, destruction or m

Transportation, Please name a country (eg Venice) that uses special transpo...

Please name a country (eg Venice) that uses special transportation (boats in Venice) and a reason (canals)

Small intestine, The chyme enters the small intestines where all the nutrie...

The chyme enters the small intestines where all the nutrients are absorbed through the microscopic finger like villi on the lining of the small intestines. Vitamins and minerals pa

Political science, Is Madison’s view that Federalism provides greater prote...

Is Madison’s view that Federalism provides greater protection to individuals and minorities still true today?

COM/155 week 2 Assignment, The Writing Process Choose one of the following ...

The Writing Process Choose one of the following scenarios: Imagine that you are the parent or friend of a student having to write a series of essays for a high school English class

Illustrate how george might be counselled, Client: George, 28 year old male...

Client: George, 28 year old male, 2 year technical college degree in air refrigeration and conditioning; twice divorced; no children; three different jobs in 8 years. Problem: I

Networked media, “The Internet has been linked both to increases and decrea...

“The Internet has been linked both to increases and decreases in social capital (Ellison & Steinfield, 2007).” Using examples explain the preceding statement

Pancreas in digestion process, The pancreas is an organ that secretes, into...

The pancreas is an organ that secretes, into the small intestine, three classes of digestive enzymes that help break down fats, proteins, and carbohydrates. It also secretes "buffe

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