Transparent Token is Cryptographic Key
A transparent token the size of a postage stamp and costing just a penny to make can be used to generate an immensely powerful cryptographic key...The team created tokens containing hundreds of glass beads, each a few hundred micrometres in diameter, set in a block of epoxy one centimetre square and 2.5 mm thick. These are "read" by shining a laser beam of a particular wavelength through the token....One future use of the tokens could see them being embedded into credit cards. :: This New Scientist report is submitted for your mark of the beast (Rev 13: 16-18) files.