Qbasic/QuickBasic Programming

This zipped suite of Windows programs consists of three executables with source code and 3 PDFs. A user can create and print any type of modified Vigenère Polygraphic Square Table by entering a sequential string of UPPPERCASE letters/numbers/characters in the Reciprocal Table Generator.exe [with the Consolas TrueType Font]. The user can encrypt/decrypt a message using any of the tables [one-step-at-a-time] with the Reciprocal Table Solver.exe instead of only using paper and pencil. The user can encrypt/decrypt a message using any of the tables [in-just-one-step] using the Reciprocal Table Auto-Key Solver.exe, but ONLY IF the encryption/decryption is using the Auto-Key method. The Reciprocal Table Auto-Key Solver.pdf explains in detail how to use the Auto-Key method in which a single initializing character starts the encryption/decryption process and then the password is the length of the message and comes from the message itself. The Reciprocal Tables.pdf are 3 different examples of tables created with the Reciprocal Table Generator.exe. The Reciprocal Table Worksheets.pdf are used as paper and pencil aids for encryption/decryption.

Source included - QB64 - 1.4 MB - 364 downloads

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