Encryption is the process of converting a readable plaintext message into an unreadable cipher text message. Decryption is the reverse process of converting cipher text back into a readable plaintext format. The encryption process uses a public key at the sender's end to encrypt the message into unreadable cipher text. Decryption uses a private key at the receiver's end to decode the cipher text back into the original readable plaintext message. Encryption and decryption ensure secure transmission and storage of sensitive data that can only be accessed by authorized parties with the proper keys.

2. WHAT IS ENCRYPTION?
Encryption is the process by
which a readable message is
converted to an unreadable
form to prevent unauthorized
parties from reading it.

3. WHAT IS DECRYPTION?
• Decryption is also the process of
converting an encrypted message
back to its original
format(readable).
• The original message is called the
plaintext message.

4. • 1. PLAIN TEXT: Plain text is readable unencrypted message.
• 2.CIPHER TEXT: Cipher text is unreadable encrypted
message.
• 3.PRIVATE KEY: Private key is used to decode the encrypted
data at receiver’s end.
• 4.PUBLIC KEY: Public key is used to encrypt the message at
sender’s end.

5. ENCRYPTION: IT IS THE
PROCESS OF CONVERTING
PLAIN TEXT INTO CIPHER TEXT
DECRYPTION: IT IS THE
PROCESS OF CONVERTING CIPHER
TEXT INTO PLAIN TEXT.
PROCESS OF ENCRYPTION AND
DECRYPTION

6. FACTS ENCRYPTION
Where it takes place At the sender’s end
Key used Secret key or Public key is used to encrypt the message
Participants After Encryption the sender delivers data to the recipient
Encrypted text Non-readable and appears as a long string of random numbers
and letters
Why Encryption is used For secure transmission and storage of sensitive data

7. FACTS DECRYPTION
Where it takes place At the receiver’s end
Key used Secret key or private key is used to decrypt the message
Participants The recipient after receiving the encrypted message sent by
sender, decodes it using private key
Decrypted text readable
Why decryption is used Only authorized persons can access the sensitive data by using
private key or password

9. THANK YOU.
KARNIKA B
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