Answer the following statements true (T) or false (F)
1. It is important in a direct digital signature to perform an outer confidentiality function first and then the signature function.
2. Message authentication protects two parties who exchange messages from any third party, however, it does not protect the two parties against each other.
3. The digital signature function does not include the authentication function.
4. The DSS approach makes use of a hash function.
5. It must be relatively difficult to recognize and verify the digital signature.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. FALSE
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The ____ element is used to store inline frames, which are windows into the content of another Web page or Internet resource.
A. irate B. iframe C. frame D. rate
(Enhancing Class Rectangle) Create a more sophisticated Rectangle class than the one you created in Exercise 9.20. This class stores only the Cartesian coordinates of the four corners of the rectangle. The constructor calls a set function that accepts four sets of coordinates and verifies that each of these is in the first quadrant with no single x- or y-coordinate larger than 20.0. The set
func- tion also verifies that the supplied coordinates do, in fact, specify a rectangle. Provide member func- tions that calculate the length, width, perimeter and area. The length is the larger of the two dimensions. Include a predicate function square that determines whether the rectangle is a square. What will be an ideal response?
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Indicate whether the statement is true or false
?In addition to direct evaluations, systems developers must identify and document indirect expenses that contribute to the _____.
A. ?business process modeling notation (BPMN) B. ?total cost of ownership (TCO) C. ?functional decomposition diagrams (FDD) D. ?Rapid Economic Justification (REJ)