Secret key and public key

Question

Explain how the secret key is different from the public key?

Answer 1

In secret key, same key is used by both the parties. The sender utilizes this key and an encryption algorithm for encryption of the data; the receiver uses the same key and the corresponding decryption algorithm in order to decrypt the data.

In public key, there exist two keys:

a) A private key and

b) A public key.

The private key is generally kept by the receiver whereas the public key is announced to the public.