公开(公告)号：US20190037107A1

公开(公告)日：2019-01-31

申请号：US16073033

申请日：2016-05-27

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

Inventor： Honee L MESA ,  Marvin D NELSON ,  Paul JERAN ,  Chris R GUNNING ,  Erik D NESS

IPC: H04N1/44 ,  G06F21/60 ,  G06F21/44 ,  G06F21/76 ,  H04L9/08 ,  H04N1/00

CPC classification number: H04N1/4426 ,  G06F21/44 ,  G06F21/57 ,  G06F21/608 ,  G06F21/76 ,  H04L9/0897 ,  H04N1/0097 ,  H04N1/4433

Abstract: Examples associated with printer firmware encryption are described. One example printer includes a base firmware module. The base firmware module controls a base function of the printer. The printer also includes a first encrypted firmware module that modifies a first function of the printer. The first encrypted module is inactive until decrypted. A firmware decryption module decrypts the first encrypted module upon receiving a first encryption key.