This is a Presentation On use of AES Algorithm To Encrypt Or Decrypt a Text File. This Algorithm is the latest and better than DES. It is a Networking Presentation. Thank You.

1. Encryption And Decryption
Using AES
By Ankita Singh
Prachi Sangli
Asmita Shinde

2. What is Encryption And Decryption ?
Encryption is the process of
translating plain text data (plaintext)
into something that appears to be
random and meaningless (ciphertext).
Decryption is the process of
converting ciphertext back to
plaintext.

3. Why Use Encryption ?
Encryption is important because it allows you to
securely protect data that you don't want anyone else to
have access to.
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4. What is AES (Advanced Encryption Standard) ?
◈ It is a symmetric block cipher chosen by the U.S.
government to protect classified information and is
implemented in software and hardware throughout the
world to encrypt sensitive data.
◈ It was intended to be easy to implement in hardware and
software, as well as in restricted environments

5. Design Of AES
◈ AES comprises three block ciphers: AES-128,
AES-192 and AES-256.
◈ Each cipher encrypts and decrypts data in
blocks of 128 bits using cryptographic keys of
128-, 192- and 256-bits, respectively.
◈ Symmetric ciphers use the same key for
encrypting and decrypting, so the sender
and the receiver must both know and use
the same secret key.

6. Design Of AES
◈ All key lengths are deemed
sufficient to protect classified
information up to the "Secret"
level with "Top Secret" information
requiring either 192- or 256-bit
key lengths.

7. Encryption
The Code In Our Project,
Converts A Text File Into An
Encrypted File Using Java Code
And AES Algorithm
Using AES For Encrypting And Decrypting Text
Decryption
Later, That Encrypted File Can be
Taken To Any Receiving System
And Decrypted To View The
Original Intended Text Using The
Java Code.

8. Proposed System

9. ScreenShot
Original text.txt File Encrypted File After Code Execution

10. ScreenShot
Decrypted File After Code Execution

11. What Does It Do ?
◈ It Makes The Communication Between Two Individuals
Or Parties Very Secure.
◈ Due To Which the Enemy Or The Middle Person Cannot
Understand What Message Is Sent.

12. “
Cryptography is the ultimate form
of non-violent direct action.
- Julian Assange

13. Thanks!
Any questions?