COMPUTER NETWORKING

Detailed explanation-1: -Encryption is the method by which information is converted into secret code that hides the information’s true meaning. The science of encrypting and decrypting information is called cryptography. In computing, unencrypted data is also known as plaintext, and encrypted data is called ciphertext.

Detailed explanation-2: -Data encryption converts data from a readable, plaintext format into an unreadable, encoded format: ciphertext. Users and processes can only read and process encrypted data after it is decrypted.

Detailed explanation-3: -Full Disk Encryption (FDE) or whole disk encryption protects the entire volume and all files on the drive against unauthorized access. In contrast to FDE, File-Level Encryption (FLE) is an encryption method, which takes place on the file system level, enabling the encryption of data in individual files and directories.

Detailed explanation-4: -In asymmetric key encryption, one key is used to only encrypt the data (the public key) and another key is used to decrypt (the private key).

Detailed explanation-5: -Information security refers to the protection of information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction in order to provide confidentiality, integrity, and availability.