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

Omni project, Project Name : OMNI Project Role : Leading and Managing ...

Project Name : OMNI Project Role : Leading and Managing the Team Involved in Requirement Gathering, System Design. Documentation. Skill Used : DB2, IBM Websphere, Java,

E-business , writing 30 pages for applying E-business concepts and analysis...

writing 30 pages for applying E-business concepts and analysis on a website of your choice

Verizon communication inc for 2010- 11 year, #(2) Review the most recent ...

#(2) Review the most recent Statement of Cash Flows and provide a brief analysis of the change in cash position over the last two years. (3) Go to www.reuters.com. Click on “News

Writing research hypotheses, Variables are concepts that can be observed to...

Variables are concepts that can be observed to vary. There are four levels of measurement of variables. 1. Nominal 2. Ordinal 3. Interval 4. Ratio Nominal variables are cate

Viking symbols, I am a collector of antiquities and have found bronze amule...

I am a collector of antiquities and have found bronze amulets/pendants in the shape of a lightning bolt. These are described as Viking, but I don''t know where or how lighting bolt

Merits of peer counselling, Peer counselling is the process whereby motivat...

Peer counselling is the process whereby motivated and well-trained people undertake informal or organized activities with their peers (those similar to themselves in age, backgrou

Famines, places where famines mostly occur

places where famines mostly occur

Research project, 1. Title 2. Background 3. Problem statements 4. Research ...

1. Title 2. Background 3. Problem statements 4. Research questions 5. Objectives 6. Literature review 7. Hyperthesis 8. Methods/Plan 9. Conclusion 10.References

DDBL, DDBL is located first at ........

DDBL is located first at ........ ?

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