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scans a given textual string in 146 pen on paper possible combinations
Application scans a given textual string in 146 pen on paper possible combinations- horizontal, vertical, diagonal, reverse, join top, join bottom, groups(2/3/4..), edges & in quadrant dimensions of your choice
...ProcessingTime(data) = O(data ^ 2);
USE IT ONLY TO PROTECT SMALL FILES (~ 100 Kb or a bit bigger).
You can use "PaperBack" to print your 100 Kb encrypted *.iK file to A4 paper and get strong encrypted digital letter.
https://sourceforge.net/projects/paperback
P.S. "inKey 6.0" encryption used in http://sourceforge.net/projects/absolutelysafechat/
This project aims at porting visual cryptography, which only works with transparent slides, to ordinary 80g/m^2 white paper. Please read the documentation before using the program.
This software implements the time stamp service. (mainly implements the Hierarchical Time-stamp Protocol. This protocol is proposed in a published paper which can be found in this package.)The code can help you to construct your time-stamp server.
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Libraries and tools written in .NET managed code (MS/mono) to interact with GRC's Perfect Paper Password system [https://www.grc.com/ppp.htm] Source moved to GitHub: http://github.com/ErebusBat/pppNET
A project to provide a GUI toolkit to facilitate (and where possible, automate) the breaking of classical (pen-and-paper) cryptosystems. Initial focus is on the cryptanalysis of monoalphabetic substitution ciphers.
Whisper is for keeping your private communications private. Whisper is designed to be easy to use (no PKI). Also Whispers can be written on paper if you have to. You don't need your correspondent to generate a key before you can Whisper.