Caesar Cipher Decoder Ring Rounded by cymon

Fashion Rings

Caesar Cipher Decoder Ring Rounded

cymon

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Published on December 21, 2011

Description

Write secret messages to your friends and decode them with this ring. The Caesar Cipher is one of the simplest codes. Simply shift the alphabet by some amount and use that alphabet to write your message, or in this case twist the rings so that the letter line up in the right order.

I am now offering a slightly different version of this same idea on Shapeways if you want a higher resolution version or don't have a 3D printer: shapeways.com/shops/cymon

Instructions

This is actually 2 nested rings that print together and turn independently. It's big enough to fit on a finger tho it may be too big for regular wear.

Both ends of the message will need a ring. The first letter of the message should be the what A in the top ring alligns to in the bottom ring. When encoding use the bottom letters for the top when decoding use the top letters for the bottom and decode away!

H:FVB HYL H ZWF UVD

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henglu on December 20, 2012 said:

cool!

Linkreincarnate on January 17, 2012 said:

I printed it and it works. Sorry it took me so long to get around to it.

Linkreincarnate on December 23, 2011 said:

This is not a caesar cipher. This is a simple substitution cipher. The caesar cipher requires the message to be comprised of a perfect square and transcribing it in square where each row is the same length as each collumn. Then you write it out in the opposite way you started. So if you wrote the message from lest to right in the grid you would now transcribe things top to bottom.

cymon on December 23, 2011 said:

This is too a Caesar cipher, or rather the key to a caesar cipher. You're describing a columnar transposition, another cool way to encode messages tho there's little you could print to help encoding or decoding that.

On the other hand I suppose a scytale for encoding could be printed except (1) it's not as cool as a ring you could wear with movable pieces and (2) in the end it's just a tube of some predetermined diameter. I think this is a much cooler project.