US 12,463,831 B2
Device signing model
Arvind Mukund, San Diego, CA (US); Phalguni Bumhyavarapu, San Diego, CA (US); and Arun Menon, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 18, 2023, as Appl. No. 18/469,470.
Prior Publication US 2025/0097053 A1, Mar. 20, 2025
Int. Cl. H04L 9/32 (2006.01); G06F 21/10 (2013.01); G06F 21/44 (2013.01); G06F 21/73 (2013.01); H04L 9/30 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/3265 (2013.01) [G06F 21/10 (2013.01); H04L 9/30 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An apparatus for secure processing, comprising:
a memory system comprising instructions; and
a processor system coupled to the memory system, wherein the processor system is configured to:
generate a model signing key, wherein the apparatus is associated with a device model, and wherein the model signing key is shared by apparatuses of the device model;
obtain a certificate for a device-unique public key of the apparatus;
sign the device-unique public key based on the model signing key;
transmit the signed device-unique public key to a digital rights management service for authentication;
receive, in response to the transmitted signed device-unique public key, a certificate for authentication from the digital rights management service;
transmit the certificate for authentication to the digital rights management service; and
receive, from the digital rights management service, a digital rights management certificate for accessing content.