What?? Store any secret information in binary code right on your finger? This is not a ring from a Lord Of The Ring movie.You should check out this Encoder Ring. This unique ring can hold up to 64 characters, so you can get at least a fairly decent sized message. The user would choose a secret message 64 characters long, have the message translated into binary code and finally have a ring produced using rapid-prototyping. I think this is good if you want to hide your secret information. Anyway, It’s still a concept right now.
Source : Bextim