When working with a mobile device, if you touch an area of screen that requires text input, the OS will display this for your use.

In cloud computing, the user's device or devices connect to the cloud client and saves changes to the documents on that device

Indicate whether the statement is true or false

Barack often sends funny jokes to Hillary. He does not care about confidentiality of these messages but wants to get credit for the jokes and prevent Bill from claiming authorship of or modifying them. How can this be achieved using public-key cryptography?

What will be an ideal response?