Used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private. a. Public Key Encryptionb. Private Key Encryptionc. Block Cipher Encryptiond. Double-blind Encryption

A- Public Key Encryption

Explanation: The Public key Encryption is used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.

.a. Public Key Encryption

Explanation:

Based on Encryption; we have two types namely: the Symmetric and the asymmetric encrytion. Symmetric has just one key but Asymmetric has two key (public and private key).

Public key Encryption is the key where the encryption is done using a user's public key and the user can decrypt using his/her private key.