In both stream and block ciphers, a single secret key () is required prior to encryption/decryption. This key is then expanded to generate sub-keys () which are used for the actual encryption/decryption. For both stream and block ciphers, discuss what determines the size of and the number of sub-keys () required.

Quincy would like to view the contents of a specific message in his inbox. a portion of his computer screen is shown. what should quincy do in order to complete this task? 1. click on the inbox in the navigation pane, and click on the specific message in the folder pane to display its contents. 2. click on the inbox in the outlook today window, and click on the specific message in the folder pane to display its contents. 3. double-click the message’s header in the outlook today window, and right-click on the specific message to display its contents. 4. double-click the mail option in the navigation pane, and right-click on the specific message to display its contents.

What do character formats do for your document's message? a.set the tone b.provide organization c.provide clarity d.set how texts align with documents

Complete the sentence based on your knowledge of the professional difficulties faced by music artists. digital technology allows audiences to see free live telecasts of music or dance performances through