Secure Hash algorithms, such as SHA-1, send encrypted Hash. This Hash can be used to confirm that the data was not tampered with or to confirm the identity of the sender (such as in Digital Signatures). In order to use this Hash as a Digital Signature a. the encryption key used must be generated at both ends of communications independently without transmitting it ever. b. the encryption key must be the private key of the sender. c. only the sender and the receiver should know the encryption key. d. only the administrator should know the encryption key.

7.23 main lab 7 - online shopping cart background this main lab extends the earlier prep lab "online shopping cart part 1". (you should save this as a separate project from the earlier prep lab). you will create an on-line shopping cart like you might use for your on-line purchases. the goal is to become comfortable with setting up classes and using objects. requirements this lab can be done individually or as pair programming. expanded itemtopurchase class (15 points) extend the itemtopurchase class as follows. we will not do unit testing in this lab so we will not be giving you the names of the member functions. create good ones on your own. create a parameterized constructor to assign item name, item description, item price, and item quantity (default values of "none" for name and description, and 0 for price and quantity). additional public member functions set an item description get an item description print the cost of an item - outputs the item name followed by the quantity, price, and subtotal (see example) print the description of an item - outputs the item name and description (see example) additional private data members a string for the description of the item. example output of the function which prints the cost of an item: bottled water 10 @ $1.50 = $15.00 example output of the function which prints the item description:

According to your study unit, what is the main reason that improved human relations skills may improve your grades?

Does anyone have the problem where you try to watch a video to get your answer but it brings up a thing asking your gender to make ads relevant but it doesn't load? btw i won't be able to see the answer so use the comments .