New Perspectives on HTML5, CSS3, and JavaScript
6th Edition
ISBN: 9781305503922
Author: Patrick M. Carey
Publisher: Cengage Learning
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Chapter 9, Problem 1CP2
Program Plan Intro
To enter name and date in the comment section of bc_union_txt.html and bc_today_txt.js and save them as bc_union.html and bc_today.js respectively.
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Compare the security services provided by a digital signature (DS) with those of a message authentication code (MAC). Assume that Oscar can observe all messages sent between Rina and Naseem. Oscar has no knowledge of any keys but the public one, in the case of DS. State whether DS and MAC protect against each attack and, if they do, how. The value auth(x) is computed with a DS or a MAC algorithm. In each scenario, assume the message M = x#####auth(x).
(Message integrity) Rina has the textual data x = “Transfer $1000 to Mark” to send to Naseem. To ensure the integrity of the data, Rina generates auth(x), forms a message M, and then sends M in cleartext to Naseem. Oscar intercepts the message and replaces “Mark” with “Oscar.” Will Naseem detect this in the case of either DS or MAC? If yes, how will Naseem detect it? If not, why?
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Chapter 9 Solutions
New Perspectives on HTML5, CSS3, and JavaScript
Ch. 9.1 - Prob. 2QCCh. 9.1 - What is the difference between asynchronously...Ch. 9.1 - Provide the command to display an alert dialog box...Ch. 9.1 - Prob. 8QCCh. 9.2 - Prob. 6QCCh. 9 - Prob. 2RACh. 9 - Prob. 4RACh. 9 - Prob. 5RACh. 9 - Prob. 6RACh. 9 - Prob. 7RA
Ch. 9 - Prob. 8RACh. 9 - Prob. 9RACh. 9 - Prob. 10RACh. 9 - Prob. 11RACh. 9 - Prob. 1CP1Ch. 9 - Prob. 2CP1Ch. 9 - Prob. 3CP1Ch. 9 - Prob. 4CP1Ch. 9 - Prob. 5CP1Ch. 9 - Prob. 6CP1Ch. 9 - Prob. 7CP1Ch. 9 - Prob. 8CP1Ch. 9 - Prob. 9CP1Ch. 9 - Prob. 10CP1Ch. 9 - Prob. 11CP1Ch. 9 - Prob. 12CP1Ch. 9 - Prob. 13CP1Ch. 9 - Prob. 14CP1Ch. 9 - Prob. 15CP1Ch. 9 - Prob. 16CP1Ch. 9 - Prob. 1CP2Ch. 9 - Prob. 2CP2Ch. 9 - Prob. 3CP2Ch. 9 - Prob. 4CP2Ch. 9 - Prob. 5CP2Ch. 9 - Prob. 6CP2Ch. 9 - Prob. 7CP2Ch. 9 - Prob. 8CP2Ch. 9 - Prob. 9CP2Ch. 9 - Prob. 10CP2Ch. 9 - Prob. 11CP2Ch. 9 - Prob. 12CP2Ch. 9 - Prob. 13CP2Ch. 9 - Return to the bc_today.js file and change the...Ch. 9 - Prob. 15CP2Ch. 9 - Prob. 1CP3Ch. 9 - Prob. 2CP3Ch. 9 - Prob. 3CP3Ch. 9 - Prob. 4CP3Ch. 9 - Prob. 5CP3Ch. 9 - Above the randomlnt() function insert a command to...Ch. 9 - Prob. 7CP3Ch. 9 - Prob. 8CP3Ch. 9 - Prob. 9CP3Ch. 9 - Prob. 10CP3Ch. 9 - Prob. 2CP4Ch. 9 - Prob. 3CP4Ch. 9 - Prob. 4CP4Ch. 9 - Prob. 5CP4Ch. 9 - Prob. 6CP4Ch. 9 - Prob. 7CP4Ch. 9 - Prob. 8CP4Ch. 9 - Explore 9. Scroll back to the top of the file and,...Ch. 9 - Prob. 10CP4Ch. 9 - Prob. 13CP4
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