Transfer of digital currency encryption keys through the process of issuance, validation and devaluation of physical medium with multi-factor authorization, and the physical medium of encryption keys for digital currency to conduct this transfer technology

Abstract

A method of a transfer of the digital currency encryption keys through the process of issuance, validation and devaluation of physical medium with multi-factor authorization is disclosed. The medium is distributed on the market as blank and to which belongs a second authorization factor safely stored with the manufacturer or integrated into the medium in form of a tamper-evident box, is loaded by an issuer using a SW application for the medium issuance and based on a first authorization factor generated by the issuer, an identifier of the medium and other data an address is derived and passed to the issuer to which he sends the balance of the digital currency in an amount equivalent to the denomination of the medium. A physical medium of encryption keys for the digital currency is also disclosed.

1 . A physical medium of encryption keys for the digital currency to conduct the transfer of encryption keys through the process of issuance, validation and devaluation of the physical medium, such that the medium is made of a flat plane base body of any shape and compact materials and with one of its major plane surfaces identified with a unique alphanumeric identifier ( 1 ) and containing applications of protective features against counterfeiting, with one or both major plane surfaces having a box ( 2 ) for receiving the first authorization factor ( 2 A) physically encoded and a box ( 3 ) for adding the digital signature ( 3 A) physically encoded. 
     
     
         2 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the base body in the form of a flat plane object has the shape of a square, rectangle or circle. 
     
     
         3 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein said medium is shaped like standard credit cards, coins or banknotes. 
     
     
         4 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein said medium bears on either side information ( 4 ) about the denomination and currency unit. 
     
     
         5 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the applications of protective features against counterfeiting in case of a paper embodiment are security paper with watermarks or metallic strips, optically variable elements, very fine graphic elements called guilloches, iris colour gradations, colours with UV or IR luminescence, chemically reagent colours. 
     
     
         6 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the applications of protective features against counterfeiting in case of embodiment in plastic cards are mainly holograms. 
     
     
         7 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the applications of the protective features against counterfeiting in case of embodiment in metal coins are diffractive security elements (kinegrams) or electronic RFID chips. 
     
     
         8 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the unique alphanumeric identifier ( 1 ) is turned into a secured element, i.e. recoated with iridescent varnish, punched, or as an optically variable element. 
     
     
         9 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein the box ( 2 ) for receiving the first authorization factor ( 2 A) and the box ( 3 ) for adding the digital signature ( 3 A) form in fact one shared box. 
     
     
         10 . The physical medium of encryption keys for digital currency according to  claim 1 , wherein either of the major plane surfaces bears another box ( 5 ) for the second authorization factor ( 5 A) in a tamper-evident mode.