Reference no: EM133440764

Question

Suppose that Bob has begun working on a risky business plan, and decided to regularly send electronic versions of it to his partner Alice (who is out of town on business) for review, but he knows that his notorious (evil?) business competitor Malice maintains an office near enough to Bob's office to monitor Bob's computer network

Bob first needs to use cryptography to securely establish a new key with Alice for communication (even though Malice is monitoring), without meeting physically with her. List a cryptographic technique to achieve this

Apart from the communication key, Bob also must protect the confidentiality of the business plan he sends to Alice without using the communication key. Briefly explain how he can do the cryptographically.