How can public-key encryption be used to distribute a secret key?

If you encrypt the secret key with someone else's public key, then only that person can decrypt it with his private key. The encrypted content can be freely shared with anyone, however only the intended recipient can retrieve the secret key since he is the only one with the proper private key.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability