Question

In symmetric encryption it is common practice to

Group of answer choices

publish the key and secure the encryption algorithm

publish the encryption algorithm and secure the key

secure both

publish both

Answer 1

Ans: Publish the encryption algorithm and secure the key,

Symmetric encryption 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.

By using symmetric encryption algorithms, data is converted to a form that cannot be understood by anyone who does not possess the secret key to decrypt it. Once the intended recipient who possesses the key has the message, the algorithm reverses its action so that the message is returned to its original and understandable form.

So, if algorithm is published it cannot be decrypted by anyone who does not posses the key. Therefore securing the key is must while you can publish the algorithm.