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Instructions:
cis22B c++ project Questions Study Paper Objective: Design of the abstract-class program. To finish with the same group as the last laboratory.
Assignment: In encoding encryption, a message or information is encoded in a manner that can only be accessed by authorized people. In this laboratory you will create a software to decipher the encrypted communication.
Specifications for details: define three classes. Each should be in a different file. You can opt to specify the class and its functions in a header file, or you can choose to have a.h and.cpp file per class.
Abstract Basic Class with the following: an encrypted message variable. This variable should be a string initialized in the builder.
A status variable that tells if the message was successfully loaded.
A builder which gets one parameter: a string variable with a file name and downloads its contents to the string variable to be stored.
A pure virtual function known as decode. This function is defined in classes derived.
A function to print the message in a screen A derived class, using a decode version with the following algorithm: the input character: abcdefghijklmnopqrstuvwxyz decoded: iztohndbeqrkglmacsvwfuypjx, meaning that every ‘a’ in the input text should be replaced with I each ‘b’ with ‘z’ and so on.
A second class derived from which a decode version known as a “rotational cypher” is implemented. A key is added to each letter of the original text in this encryption process. For example: Cleartext: a P P L E Key: 4 4 4 4 4 Ciphertext: ET T P I You must remove 4 for decoding.
I’m going to offer a program to test your classes.
The output should be displayed on the screen. At the end of your source code, attach the output of your program as a comment.
Encrypted.h, CypherA.h and CypherB.h are turned on (corresponding .cpp files optional). Only one member in the group must participate in the group task. Your test screenshot.
ALL files should have group # and group members’ names.
Requisites: 1
RUBRIC |
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Excellent Quality 95-100%
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Introduction
45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Literature Support 91-84 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met. |
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Average Score 50-85% |
40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. |
83-76 points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration. |
52-49 points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met. |
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Poor Quality 0-45% |
37-1 points The background and/or significance are missing. No search history information is provided. |
75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration. |
48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met |
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