Keys

Keys (Public and Private) are numbers that are used to encrypt data. In our case, the data being encrypted is in effect, the secure transaction. Keys come in two types: Public and Private. The User holds the Private Key in secret. Public Keys are tied to a specific Private Keys, with the possibility of having many Public Keys for each Private Key. The Public Key is used by Service Providers to decrypt and verify transactions encrypted by a Private Key on an On-Board Unit.