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Random Stream Cipher
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FILE INFORMATION
Ranked as 34939 on our all-time top downloads list with 1215 downloads.
Ranked as 2587 on our top downloads list for the past seven days with 6 downloads.
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cipher.zip
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Filename
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cipher.zip (Download)
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Title
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Random Stream Cipher
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Description
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This is, as you can tell by the directory it's in, an encryption tool written in BASIC. There are numerous ways to encrypt data, but this program exhibits what I believe is the most efficient and secure encryption method for the TI-83/84 Plus family. It takes data in the form of a string, then encrypts it using a stream cipher based on the random number generator built into the calculator. Better yet, it first preprograms a seed for the random number generator by asking for an encryption key, which can be any positive integer you want. Decrypts perfectly, with no errors ever found. Just in case someone stole your calculator as you were encrypting some data, the program automatically deletes each variable it uses as soon as it's done with it. When you're done using the data, you can even run the built-in Destroy function, which, as you may guess, deletes both the encrypted and decrypted forms of the data. Instructions and screenshots are included.
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Author
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Deep Toaster (deeptoaster@gmail.com)
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Category
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TI-83/84 Plus BASIC Misc. Programs (Encryption)
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File Size
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26,752 bytes
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File Date and Time
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Thu May 20 07:58:06 2010
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Documentation Included?
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Yes
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