Introduction to Cryptography | What is Cryptography ? | Why we use Cryptography ? | What is Application of Cryptography?

 Introduction to Cryptography |   What is Cryptography ? | Why we use Cryptography ? | What is Application of Cryptography?

 Introduction to Cryptography

 


 

What is Cryptography ?

  • The art of protecting information by transforming ( converting ) into an unreadable format is known as Cryptography.
  • It is a method to protect information or documents or file or communication through the use of codes.

This is not correct way of communication

 

Correct way of communication

 

Why we use Cryptography ?

Because-

  • Attackers or Third party may corrupt or change our data.
  • May misuse it also.
  • Thus, to provide security and protect the valuable data .
  • We can use Cryptography.


What is Application of Cryptography?

  • Secure communications
  • Identification and authentication
  • Secret Sharing or Data hiding
  • E-payment


Comments

Post a Comment

Popular posts from this blog

what is osi model | what are seven layer of OSI model | function of OSI model.

Image
what is OSI model | what are seven layer of OSI model | function of OSI model. OSI Reference Model INTRODUCTION Stands for open system interconnection. It has 7 layers. Each layer having specific functionality to perform. All layers work collaboratively to transmit the data from one person to another across the globe.                            All 7 layers of OSI model explain briefly: Physical layer To move data in the form of electromagnetic signals across a transmission medium. Responsible for movements of individual bits from one hop (Node) to next hop. Both data can be either analog or digital. Transmission media of data which can be wired or wireless.   Data link layer It is responsible for moving frames from one hop to the next. Responsible for error free transfer of data frames. Controls the flow of data. Network layer The network layer works for the tra...
Read more

what is Internet Connection | Types of Internet Connection

 Internet Connection Internet Connection means a connection is provided by  ISP that enables every PC or system or computer or any hardware components provide access to internet. Types of Internet Connection Dial-up connection   A dial-up connection is established between Computers and ISP ( Internet Service Provider ) server using a modem.  It is not preferred these days as this types of connection is very slow.   Broadband connection  Broadband refers to high speed internet access that is faster than traditional dial-up connection. It provided through either cable or telephone companies same broadband connection.   Wireless connection  Use radio frequency band to connect to the internet. It offers very high speed internet. 
Read more