Digital signature, Computer Network Security

Assignment Help:

A digital signature is a stamp on the data, which is unique and very hard to forge.  A digital signature has 2 steps and creates 2 things from the security perspective.

STEP 1: To sign a document seems hashing software  will break the data into just a few lines by the process called 'hashing'. These few lines are named message digest. It is not possible to modify the message digest back to its original data.   Same as what we used above in cryptography hashes.  This establishes whether the message has been changed between the time it was digitally signed and sent and time it was gets by the recipient.

STEP 2: Computing the digest can identify the integrity of the message but does not stop from someone intercepting it or verifying the identity of the user. This is where encryption comes into picture. Signing the code with the private key will be useful for giving that the message must have come from the user who claims to have signed it. The second step in making a digital signature includes encrypting the digest code prepared in STEP 1 with the sender's private key

 


Related Discussions:- Digital signature

Explain how the key exchange algorithm works, Question: (a) Explain how...

Question: (a) Explain how the Diffie-Hellman key establishment protocol works. (b) Prove that the Diffie-Hellman key establishment protocol is vulnerable to a `man in the mi

Perimeter Network Security System coursework, what is the guaranteed qualit...

what is the guaranteed quality of this coursework? how many days it take for 10-12 pages? how much will be? thanks

Cyber troll case, According to the case, The EZ Company introduced a new te...

According to the case, The EZ Company introduced a new technology, focusing on the principles of informationintegration and visualization. The company started negotiatinga saleto a

Important network security services, Question: (a) Consider that you en...

Question: (a) Consider that you enter the given URL in the address bar of a popular web client and that both the client and server accepts HTTP version 1.1. i. What can be t

Hypothetical reliable data transfer protocol, Hypothetical reliable data tr...

Hypothetical reliable data transfer protocol: A jumping window based Go-back-N  ARQ protocol for file transfer using UDP as the transport protocol: In this protocol, a window o

Cloud computing security infrastructure, i want to know about cloud computi...

i want to know about cloud computing server security infrastructure development process

The Security Systems Development Life Cycle (SecSDLCtle.., #Under what circ...

#Under what circumstances would the use of a SecSDLC be more appropriate than an SDLC?

Emulation, In this section, you should create a program that emulates a GBN...

In this section, you should create a program that emulates a GBN node. Two GBN nodes will be running to send packets to each other through the UDP protocol. For emulation purpose,

Draw the network layout, Question : a) Below is a capture of an Etherne...

Question : a) Below is a capture of an Ethernet II frame which contains an IPv4 packet and a TCP segment. Give the source MAC address for the frame in hexadecimal; the source I

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