Why need Cryptography?
But Is internet secure?
→ This message can be corrupted by intruders.
To provide the security and protect the valuable information, we can use cryptography.
What is Cryptography?
Bob wants to send a message to Alice.
His message can be sent securely by transforming the whole content into a new form others can't understand.
(Hello Alice! .........> 6EB6957008E03CE4)
The art of protecting information by transforming it into an unreadable format, is called CRYPTOGRAPHY.
Encryption and Decryption
Encryption
Transforming information from readable format to unreadable format.
Decryption
Transforming information from unreadable format to readable format.
Key
A string of bits used by a cryptographic algorithm transform plain text into cipher text or vice versa.
Key remains private and secures communication.
But Is internet secure?
→ This message can be corrupted by intruders.
To provide the security and protect the valuable information, we can use cryptography.
What is Cryptography?
His message can be sent securely by transforming the whole content into a new form others can't understand.
(Hello Alice! .........> 6EB6957008E03CE4)
The art of protecting information by transforming it into an unreadable format, is called CRYPTOGRAPHY.
Encryption and Decryption
Encryption
Transforming information from readable format to unreadable format.
Decryption
Transforming information from unreadable format to readable format.
Key
A string of bits used by a cryptographic algorithm transform plain text into cipher text or vice versa.
Key remains private and secures communication.
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