Question

What is cryptography ? Explain types of cryptography.

Answer 1

Cryptography is associated with the process of converting ordinary plain text into unintelligible text and vice-versa. Symmetric-key Cryptography: Both the sender and receiver share a single key. The sender uses this key to encrypt plaintext and send the cipher text to the receiver

Answer 2

Cryptography and Explaination for types of cryptography:

Cryptography is an art of hiding Messages by converting the plain text into the ciphertext which is in an unintelligible text.

The two types of Cryptography are:

        Single Key or Symmetric Key  Algorithm

         Private Key or Asymmetric Encryption Algorithm

• In symmetric-key cryptography the same key is used for both encryption and decryption.

• In Asymmetric key Cryptography different key is used for encryption and decryption.

• It is used to secure information from unauthorised persons.

• In the present time, everyone is online and to prevent intruders from getting any personal information about anyone else.

• Some mechanism is required to Encrypt the information.

• This hiding of Information is known as the Cryptography.

• Cryptography mostly depends on Mathematical Algorithms which are difficult for a normal person to Solve because of large Computation and time is required to do so.

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