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

Describe the procedure known as byte stuffing, Question: (a) For the b...

Question: (a) For the bit stream 010011, sketch the waveforms for each of the code indicated. Assume the following: the signal level for the previous bit for NRZI was a 1

Describe the terms prime number and prime factorisation, (a) An opponent is...

(a) An opponent is using RSA with the public key {e=53, n=77}. You intercept the ciphertext C=10. (All values on this problem, including the ciphertext and the cleartext, are nume

Threads and attacks-information security, THREADS AND ATTACKS Threat is ...

THREADS AND ATTACKS Threat is an object, person, or other entity which represents a constant danger to an asset. To make sound decisions about information security, management s

What is the benefit of adopting a password aging policy, QUESTION (a) H...

QUESTION (a) Hashing and salting is commonly used as password storage techniques for most applications. Describe how hashing and salting enable secure storage of password (b

Define repeater, Repeater known as regenerator ; it is an electronic mac...

Repeater known as regenerator ; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the

Protocols for secure communications-cryptography, Protocols for Secure Comm...

Protocols for Secure Communications Securing Internet Communication by using S-HTTP and SSL Secure Socket Layer (SSL) protocol is a protocol that uses public key encryption t

Mention most relevant clause of iso 27001:2005, QUESTION (In this ques...

QUESTION (In this question, you will need to use the ISO 27001:2005 and ISO 27002:2005 standards) For each of the situations below, comment on the following: 1. Mention

Kasonet pinging system, KASONet Pinging System: Project Title:       ...

KASONet Pinging System: Project Title:                                                           "KASONet Pinging System"   Brief Overview of Project: The o

Direct indexing, DIRECT INDEXING It is less usually known method. It i...

DIRECT INDEXING It is less usually known method. It is possible only is cases where protocols address are given from a compact range. In the diagram below an example of direct

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