Vigenere Cipher --A Case Selected for Properly Designing a Software before Realizing It

Date Completed: December 2005

Introduction to the project:
The Vigenere cipher is a cipher based on using successively shifted alphabets, a different shifted alphabet for each of the 26 English letters.
The carried out task:
Writing a program in Java that ciphers and deciphers messages. The system will take a text file, a keyword, and the desired operation (ciphering or deciphering) as inputs from its user.
The output of the system consists of the creation and display of original and ciphered/deciphered files.

Here is the Report , the Presentation and the Project Files .

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