Security impact of not having a public key infrastructure, Computer Networking

Assignment Help:

(a) You are provided with the following:

A. An RSA facility complete with public/private key pair
B. A CBC (cipher block chaining) facility incorporating the IDEA block cipher
C. A message digest facility employing the MD5 algorithm

(i) You are required to send a block of data of size 1 MByte through an insecure network to a recipient who knows the message digest algorithm you are using, your secret key in IDEA and your RSA public key. Explain how you would use your security facilities (each facility for one operation) to provide the security services of privacy, message integrity and source authentication.

(ii) How would you achieve the above if the RSA facility were not available?

(iii) Discuss the relative security strengths of your solutions to (i) and (ii)

(b) (i) Name five functions that should be provided by a public key infrastructure.

(ii) Is it possible to operate a public key security system without a public key infrastructure? Justify your answer.

(iii) Discuss the security impact of not having a public key infrastructure.


Related Discussions:- Security impact of not having a public key infrastructure

Debug igrp, As a system administrator, you require to debug igrp but are wo...

As a system administrator, you require to debug igrp but are worried that the "debug IP igrp transaction" command will flood the console. What is the command that you should use?

Explain the building blocks of client/server, The client side building bloc...

The client side building block moves towards the client side of the application. The server side building block moves towards the server side of the application.

List some most useful advantages of token ring, List some most useful advan...

List some most useful advantages of Token Ring. Here are Token ring's most useful advantages: a. It depends excellent throughput under high-load conditions. b. Token Ring

Design the user interface for mode switching, Design the user interface for...

Design the user interface for mode switching and data entry any way that you like. For example, to switch an application from transmit mode to receive mode, you can give it special

Debug ip igrp transaction, To monitor IP igrp traffic, we can use "debug IP...

To monitor IP igrp traffic, we can use "debug IP igrp transaction" or "debug IP igrp events". How do we show information about IPX routing update packets? Ans) Bu using debug ip

Explain the routing table of solaris system, Question 1 Write a note on a)...

Question 1 Write a note on a) Internet layer b) strict source routing Question 2 Explain the routing table of Solaris system Question 3 Explain following concepts a) MIM

How lans connected to internet, How LANs connected to Internet. Doublin...

How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio

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