ROT13 Decoder Keychain Geocoin
ROT13 is the language of Geocaching. It is used in Geocaching.com in encrypting geocache hints. It is also used in various mystery caches. So why not keep a decoder always with you in the form of this keychain geocoin! It also functions as a trackable with its own trackable page at Geocaching.com.
ROT13 is a simple letter substitution cipher that replaces a letter with the 13th letter after it. It's a special case of the Caesar cipher, developed in ancient Rome. Read more about ROT 13 in Wikipedia. Because of the cipher's association with Julius Caesar, the famous quote "Veni Vidi Vici" is printed on the coin aswell.
- Diameter: 4.5 cm