LC4 & LS47 cipher printable tiles sheet (PDF & PNG)
Post date: May 15, 2018 2:23:05 PM, Update date: Mar 6, 2022 8:4921 AM
LC4 is another pen-and-paper symmetric cipher, using mutable s-box appliance tiles for cipher state and encryption key. LS47 is basically same, but with extended character set and different marker mode. Yet these can be applied as required.
Why? I did a quick search and didn't find anything else than 3D printable STL version. Duh, but I don't need that. Here's simple version which you can print with any printer, and then attach the tiles to your favorite background. What ever it is. Heavy plastic, cardboard, wood / lego blocks or so.
The set doesn't include the marker object / block / tile, because that's something you'll need to physically have. You can use any small suitable object.
The EFAIL attack / vulnerability, is perfect example why encryption on computer (and handling the plaintext) is potentially dangerous.
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