This PPT really help to learn algorithms DES, AES and Hash function in diagrammatic way

1. Cryptography
By.,
Gowarthini B

2. Cryptography
• Cryptography is a method of protecting information and
communications through the use of codes.
• The pre-fix "crypt" means "hidden" or "vault" and the suffix
"graphy" stands for "writing.“
• In cryptography, encryption is the process of encoding a message
or information.
• In cryptography, Decryption is the process of decoding a message
or information.

3. Encryption Decryption
• It is the process of converting
plain text to cipher text.
• Decryption is generally the
reverse process of encryption
• It is the process of converting
cipher text to plain text.

5. Types of Encryption
• symmetric encryption: (also called “secret key”)
Use the same key for both encryption and decryption
• asymmetric encryption : (also called “public key”)
Use different keys for encryption and decryption
• Hash:
Used for convert fixed size bit.

6. Symmetric and Asymmetric encryption

10. Add a Slide Title - 2

11. Add a Slide Title - 3

12. AES (Advance Encryption Standard)

21. Thankyou