COMPUTER FUNDAMENTALS

Detailed explanation-1: -In symmetric key encryption, the same key used to encrypt the data is used to decrypt the data. 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-2: -In asymmetric, or public key, encryption, there are two keys: one key is used for encryption, and a different key is used for decryption.

Detailed explanation-3: -Symmetric key algorithm, is a type of encryption where only one key (a secret key) is used to both encrypt and decrypt electronic information. The entities communicating via symmetric encryption must exchange the key so that it can be used in the decryption process.

Detailed explanation-4: -Pre-Shared Key Encryption (symmetric) uses algorithms like Twofish, AES, or Blowfish, to create keys-AES currently being the most popular. All of these encryption algorithms fall into two types: stream ciphers and block ciphers.

Detailed explanation-5: -Asymmetric cryptography is often used to exchange the secret key to prepare for using symmetric cryptography to encrypt data. In the case of a key exchange, one party creates the secret key and encrypts it with the public key of the recipient.