Explain the bit-level encryption, Computer Networking

Assignment Help:

Q. Explain the Bit-Level Encryption?

Bit-Level Encryption

- Data is divided into blocks of bits then altered by encoding/decoding, permutation, substitution, exclusive OR, rotation, and so on

- Encoding/decoding - decoder changes an input of n bits into an output of 2n bits; encoder has 2n outputs and only n outputs

551_Explain the Bit-Level Encryption.png

- Permutation - transposition at the bit level

- Straight permutation - number of bits in input and output are preserved

- Compressed permutation - number of bits is reduced

- Expanded permutation - number of bits is increased

- May be implemented in hardware circuitry to be performed very quickly (referred to as P-boxes)


Related Discussions:- Explain the bit-level encryption

Threats to information can include, Threats to information can include ...

Threats to information can include Deletion of a file or files. Corruption, caused either by hardware problems or by a bug in the software. Theft of company data

Discuss about the jpeg and ldap, Discuss  about the JPEG and LDAP J...

Discuss  about the JPEG and LDAP JPEG: Stands for Joint Photographic Experts Group.  A standard format of storing digitized, colour, or black-and-white photographs. JPEG fi

Command to copy the ios image to a tftp server, What is the command to copy...

What is the command to copy the IOS image to a TFTP server? Ans) Copy flash tftp

What are mac addresses, What are MAC addresses? MAC, or Media Access Co...

What are MAC addresses? MAC, or Media Access Control, uniquely identifies a device on the network. It is also called as physical address or Ethernet address. A MAC address is m

What are the advantages and disadvantages of routing table, What are the ad...

What are the advantages and disadvantages of the three types of routing tables? The three types of routing tables are fixed, dynamic, and fixed central. The fixed table must be

Define client and server, Question 1 Define client and server. Explain the...

Question 1 Define client and server. Explain the Client server model Question 2 What is a Mainframe System? Write down the features of Mainframe System Question 3

Encoding the data type, ENCODING THE DATA TYPE: The figure explain a f...

ENCODING THE DATA TYPE: The figure explain a frame in which the data kind is specified by using the data area. To ensure interoperability format of encoding location m

Find out the current flows through the photodiode, Quetion: A photodiod...

Quetion: A photodiode with a dark current of 10 nA has a responsivity of 0.4 A/W at a certain wavelength. What current flows through the photodiode when it is reverse biased an

Physical configurations sonet sdh , Physical Configurations Transport ...

Physical Configurations Transport signal multiplexer de multiplexer. It either  signal from multiple   sources into a STS singles  or de multiplexes and STS signal  into diffe

Protocols and standards - cable network architecture, Q. Protocols and Stan...

Q. Protocols and Standards - Cable Network Architecture? - Essential in creating as well as maintaining an open and competitive market for equipment manufacturers and in guaran

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