Describe des encryption, Computer Network Security

Assignment Help:

(a) Describe DES encryption with a block diagram and brief steps.

(b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compatible with DES?

(c) Describe a one way hash function and give an example. Give essential properties of the hash functions.

(d) Define message authentication. Explain MAC.

(e) Give three known attacks on AES encryption.


Related Discussions:- Describe des encryption

Briefly explain the following security goals, (a) Briefly explain the fo...

(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip

E-commerce, briefly expslain type of e-commerce

briefly expslain type of e-commerce

Address resolution techniques, Address resolution algorithms may be grouped...

Address resolution algorithms may be grouped into three basic types: Table lookup Closed-form computation Message Exchange 1. TABLE LOOKUP: In Table Loo

Gateways, Gateways They transfer packets among network machines that h...

Gateways They transfer packets among network machines that have different protocols (e.g. between a WAN and a LAN). They access a packet formatted for one protocol and change

Wan architecture and wan service, MegaCorp INC. is a large manufacturing f...

MegaCorp INC. is a large manufacturing firm that operates 5 factories in Dallas, 4  factories in Los Angeles, and 5 factories in Albany, New York.  It operates a tightly  connected

Minimum cost flow problem, QUESTION (a) A convex flow problem is a no...

QUESTION (a) A convex flow problem is a non linear network flow problem. Explain how a convex flow problem could be transformed into a Minimum Cost Flow problem. (b) Exp

Calculate the rsa public and private keys, (a) Which PKI (Public Key Infra...

(a) Which PKI (Public Key Infrastructure) model is typically favored by business organization? (b) Give one possible use of the "extensions" field of an X.509 certificate

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