[Cryptography] Almost lame cipher
Tom Mitchell
mitch at niftyegg.com
Tue Jan 5 23:15:39 EST 2016
A transposition Scytale like cipher on a modern machine
with constant width fonts and variable width screens.
Type your alphabet across the first line of a text window.
Insert a blank line.
Type the same or another alphabet N times on a single
line. Lines like variations of "the quick brown fox...." will do.
Slide the edge of the window smaller stopping at
a character (I) of the top alphabet. Countdown "D" copy the characters
from the left edge under a normal alphabet for a simple
transposition table.
Four modest secrets:
The top line of characters.
The index (I) of the top line to set the right edge to.
The repeated alphabet.
A count of characters (D) to toss so the first is not always first.
Changing the width of the screen is a lot like changing the
diameter of the rod with a bit of complication tossed in.
Good for a word or two...
--
T o m M i t c h e l l
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