For the protocol in section 17.3, what is a reasonable lifetime to use for the keys K/a? Why? What bad things could happen if the lifetime is longer? What bad things could happen if the lifetime is shorter?

Which of the following had the greatest influence on opening the internet to the generly public

Idon’t understand the double8 coding problem. it is java

What is the biggest difference between section breaks and regular page breaks? section breaks are more difficult to add than page breaks. section breaks make it easier for you to view the document as an outline. section breaks allow you to have areas of the document with different formatting. section breaks are smaller than regular page breaks.