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

Issues in political theory, Issues in political theory: The nature of this...

Issues in political theory: The nature of this theory can also be understood from the kind of matter it has been grappling along with during the long span of more than 2300 years.

Self-awareness assignment, wanna get a quote from a 8 pages doubled space s...

wanna get a quote from a 8 pages doubled space self-awareness assignment which require at least 6 academic sources to support the assignment.

Logic, #qIf you have two candles on a boat but no source of fire. How will ...

#qIf you have two candles on a boat but no source of fire. How will you lighten a candle if you are in the middle of the river? uestion..

Environmental health, Environmental Health: According to the World Health ...

Environmental Health: According to the World Health Organization (WHO), environmental health addresses all the physical, chemical, and biological factors external to a person, and

Secured credit cards, Secured Credit Cards A protected credit card is a...

Secured Credit Cards A protected credit card is a kind of credit card protected by a deposit account owned by the cardholder. usually, the cardholder have to deposit between 10

Identify the primary human causes of accident, Question 1: (a) Under se...

Question 1: (a) Under section 6 of the Occupational Safety and Health Act 2005, employers have a statutory duty to prepare and keep revised a written statement of their health

., role of school,parent.peers in imparting family education

role of school,parent.peers in imparting family education

Email (business communication), your company wins contract , women from you...

your company wins contract , women from your firm will need to live in Saudi Arabia.Is western style clothing acceptable to men?What is the dress expectation for women?Are there an

Biology course assignment, What are prions ? How do they reproduce ? What...

What are prions ? How do they reproduce ? What diseases do they cause ? Which ones affect humans ? Write a 2 page summary of your findings with an extra work cited page. Times

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