In practice, it is sometimes desirable that both communication parties influence the selection of the session key. For instance, this prevents the other party fromchoosing a key which is a weak key for a symmetric algorithm. Many block ciphers such as DES and IDEA have weak keys. Messages encrypted with weak keys can be recovered relatively easily from the ciphertext. Develop a protocol similar to the one above in which both parties influence the key. Assume that both Alice and Bob have a pair of public/private keys for the RSA cryptosystem. Please note that there are several valid approaches to this problem. Show just one.In practice, it is sometimes desirable that both communication parties influence the selection of the session key. For instance, this prevents the other party from choosing a key which is a weak key