US 12,380,251 B2
Authentication of medical device computing systems by using metadata signature
Norbert Leinfellner, Livermore, CA (US); Joseph Edwin Inase Manakkil, San Ramon, CA (US); and Paolo Pochendorfer, Pleasanton, CA (US)
Assigned to Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed by Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed on Apr. 24, 2024, as Appl. No. 18/644,509.
Application 18/644,509 is a continuation of application No. 18/344,003, filed on Jun. 29, 2023, granted, now 11,995,221.
Application 18/344,003 is a continuation of application No. 17/399,209, filed on Aug. 11, 2021, granted, now 11,727,155, issued on Aug. 15, 2023.
Application 17/399,209 is a continuation of application No. 16/560,534, filed on Sep. 4, 2019, granted, now 11,126,752, issued on Sep. 21, 2021.
Prior Publication US 2024/0346185 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/73 (2013.01); G06F 21/70 (2013.01); G06F 21/71 (2013.01); G06F 21/76 (2013.01); H04L 9/08 (2006.01); H04L 9/14 (2006.01); G06F 21/30 (2013.01); G06F 21/57 (2013.01); H04L 9/40 (2022.01)
CPC G06F 21/73 (2013.01) [G06F 21/70 (2013.01); G06F 21/71 (2013.01); G06F 21/76 (2013.01); H04L 9/0819 (2013.01); H04L 9/0861 (2013.01); H04L 9/0894 (2013.01); H04L 9/14 (2013.01); G06F 21/30 (2013.01); G06F 21/57 (2013.01); H04L 9/0866 (2013.01); H04L 63/0876 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a security authentication engine (SAE) of a computing system, the method comprising:
receiving a metadata signature from an electronic component of the computing system;
generating first encrypted metadata based on the metadata signature received from the electronic component; and
in response to determining that the first encrypted metadata is substantially different from a first key that is associated with the electronic component and is stored in the SAE,
blocking operation of the electronic component from which the metadata signature was received; and
storing, in a permanent memory, authentication failure information and error source information associated with the electronic component.