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Cryptosystem ME6
by Hermetic Systems
A program for the encryption and decryption of single or multiple files for secure storage or transmission. It uses a symmetric key encryption method with a 500-bit key for security, and has numerous safeguards against possible user error.
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Hermetic Stego
by Hermetic Systems
A program to hide a message file of any size within one or more BMP image files. Uses a stego key for encryption and randomization of bit-insertion. Allows use of a default stego key for transmission of a message to others.
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Prime Number Spiral
by Hermetic Systems
The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.
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Chinese Calendrics
by Hermetic Systems
A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year.
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Lunar Calendars and Eclipse Finder
by Hermetic Systems
A program to search for eclipses (lunar, solar, total, annual and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in various lunar calendars.
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Easy Graphics File Converter
by Hermetic Systems
A program for converting between BMP, GIF, JPG and PNG graphics files. Allows single or multiple (batch) file conversion.
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Data Destroyer
by Hermetic Systems
A program for secure file deletion which destroys (by overwriting) data in multiple files and multiple folders on floppy, ZIP or hard disk so that the data cannot be recovered. Single-file or batch-mode operation. User-specifiable purge type.
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Factorizer
by Hermetic Systems
A program to find all factors of any positive integer less than 2^31 - 2, to decompose numbers into their prime constituents, to find prime numbers and pairs of primes, and to plot Erdos-Kac and Palmen Color histograms.
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Easy Date Converter
by Hermetic Systems
Does date arithmetic (adds a number of days to a date and calculates the number of days between two dates) and converts among Gregorian dates, Julian dates, Annus Novus dates, Julian day numbers and day-in-year dates of the form yyyyddd.
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Five Cellular Automata
by Hermetic Systems
Ssoftware for exploring five cellular automata: q-state Life, the Belousov-Zhabotinsky Reaction, Togetherness, Viral Replication and Diffusion-Limited Aggregation
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