Abstract— process of converting Cipher Text intoAbstract— process of converting Cipher Text into

Abstract—

 

 

 

 

 

 

 

 

Introduction

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Cryptography comes from a Greek words for “Secret Writing”. It is
the use of math for information security. This includes data integrity,
confidentiality, entity authentication and data origin authentication. To
establish a shared secret when other people (eavesdroppers) are listening.

OR

It is a Science of hiding meaning of communication.

                                                                                                                                                      
I.           
Terminology

 

Fig: 01

                                                                                                                                                      
II.           
Encryption

The process of Converting Plain Text into Cipher
Text is called Encryption.

                                                                                                                                                   
III.           
Decryption

The process of converting Cipher Text
into Plain Text is called Decryption.

                                                                                                                                 
IV.           
Purpose
of Cryptography

 

1.      Cryptography— Study
of encryption principles and methods.

2.      Plain Text — Original Messages.

3.      Cipher Text —coded messages.

4.      Encrypt
— Convert plain text into coded text.

5.      Decrypt— Convert Cipher text into Plain Text.

 

 

 

 

 

 

 

 

 

 

How does
cryptography work??                                  

 

 

 

 

 

 

 

 

6.      
Strong Cryptography

 

 

 

 

 

7.      
Cryptography Technique

 

 

 

 

 

 

 

8.       Key

 

 

 

 

 

 

 

 

 

 

 

Fig: 02

 

 

 

 

 

 

 

 

 

Fig: 03

 

 

 

9.      
Conclusion