It is a Presentation on the software named "Encryption & Decryption" made using C++ programming language. It helps us to encrypt and decrypt data. It helps us to protect and Safe our important information & data. For any queries : jayantbhatt910@gmail.com

1. A Powerpoint
presentation on
By Jayant Bhatt
jayantbhatt910@gmail.com

2.  Content
• Introduction.
• About C++ .
• Types of Encryption.
• The process of Data Encryption.
• Screenshots.
• Why you need it?

3.  Introduction
Encryption is a security method in which information is
encoded in such a way that only authorized user can
read it. It uses encryption algorithm to generate
ciphertext that can only be read if it is decrypted.

4.  About C++(Programming Language)
• It is a High level Language.
• It was Developed by “Bjarne Stroustrup” in 1980 at AT&T Bell
Laboratory with name C with Classes.
• The C++ language definition is based on the ANSI (American
National Standards Institute).
• It runs on following platforms :
Windows UNIX Mac-OS

5.  Types of Encryption
 SYMMETRIC KEY ENCRYPTION
Symmetric key encryption algorithm uses same
cryptographic keys for both encryption and decryption
of cipher text.
 PUBLIC KEY ENCRYPTION
Public key encryption algorithm uses pair of keys, one
of which is a secret key and one of which is public.
These two keys are mathematically linked with each
other.

6. Logic to encrypt the message
Entered message ------>
Acsii of each character ------>
key ascii increment + 50 ascii ------>
Ascii after increament to character ------>
Character of acsii ------>
H e l l o C + +
72 101 108 108 111 32 67 43 43
2+5
0
2+5
0
2+5
0
2+5
0
2+5
0
2+5
0
2+5
0
2+5
0
2+5
0
(72+50+2
)
124
(101+50+
2)
153
(108+50+
2)
160
(108+50+
2)
160
)111+50+
2)
163
(32+50+2
)
84
(67+50+2
)
119
(43+50+2
)
95
(43+50+2
)
95
| Ö á á ú T w _ _

7.  Why you need it?
• Data cannot be hacked.
• Protects our data.
• Protects our physical assets.
• Everyone cannot read it easily.

8. Screenshots

9. Screenshots

10. Screenshots

11. Screenshots

12. Screenshots

13. Screenshots

14. Thank You…