Encryption key generation in embedded devices

摘要: An encryption key is generated in an embedded device that provides functionality to a printer. The receives request for the from host computer via network, wherein includes first source of entropy information accumulated computer. In response receiving request, determines whether requested present device. If it determined not present, generates utilizing and second stored within seed generating process. then storage medium may be internal printer or external device, public/private keypair process also perform integrity check on generate result value