COMPUTER FUNDAMENTALS

Detailed explanation-1: -Symmetric cryptography, known also as secret key cryptography, is the use of a single shared secret to share encrypted data between parties. Ciphers in this category are called symmetric because you use the same key to encrypt and to decrypt the data.

Detailed explanation-2: -Both encryption methods use keys to encrypt and decrypt data. The main difference is that symmetric encryption uses the same key to encrypt and decrypt data. In contrast, asymmetric encryption uses a pair of keys – a public key to encrypt data and a private key to decrypt information.

Detailed explanation-3: -In this type of cryptography both the parties (sender and receiver) use same key to encrypt and decrypt the message. A popular symmetric key algorithm is Data Encryption Standard (DES), there are also its modern variants such as Triple DES.

Detailed explanation-4: -Symmetric, or secret key encryption, uses a single key for both encryption and decryption. Symmetric key encryption is used for encrypting large amounts of data efficiently. 256-bit AES keys are symmetric keys.

Detailed explanation-5: -Symmetric encryption uses a single key to encrypt and decrypt. If you encrypt a zip file, then decrypt with the same key, you are using symmetric encryption. Symmetric encryption is also called “secret key” encryption because the key must be kept secret from third parties.