公开(公告)号：US20190116026A1

公开(公告)日：2019-04-18

申请号：US16089876

申请日：2016-09-09

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Steven J. SIMSKE ,  Malgorzata M. STURGILL ,  Cesare GRITTI ,  Shivaun ALBRIGHT

IPC: H04L9/06 ,  G06F21/60 ,  H04L29/06 ,  H04L9/08 ,  H04N1/32

Abstract: Examples associated with printer encryption are described. One example printer includes a data store to store a one-time pad. An encryption module may encrypt a message using the one-time pad. The encryption module also transmits the encrypted message to a trusted device that stores a copy of the one-time pad. A decryption module uses the one-time pad to decrypt a received message form the trusted device. The decryption module also controls the printer to perform an action based on the received message. A refresh module replaces the one-time pad during a service event.