Device signing model
AssigneeQUALCOMM Incorporated
InventorsArvind Mukund, Phalguni Bumhyavarapu, Arun Menon
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Abstract
Systems and techniques are provided for secure processing. For instance, a process can include generating a model signing key, wherein the device is associated with a device model, and wherein the model signing key is shared by apparatuses of the device model; obtaining a certificate for a device-unique public key of the apparatus; signing the device-unique public key based on the model signing key; and transmitting the signed device-unique public key for authentication.
Claims27
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.
A method for secure processing by a device, comprising:
- generating a model signing key, wherein the device is associated with a device model, and wherein the model signing key is shared by apparatuses of the device model;
- obtaining a certificate for a device-unique public key of the device;
- signing the device-unique public key based on the model signing key;
- transmitting the signed device-unique public key to a digital rights management service for authentication;
- receiving, in response to the transmitted signed device-unique public key, a certificate for authentication from the digital rights management service;
- transmitting the certificate for authentication to the digital rights management service;
- and
- receiving, from the digital rights management service, a digital rights management certificate for accessing content.
A non-transitory computer-readable medium having stored thereon instructions that, when executed by a processor system of a device, cause the processor system to:
- generate a model signing key, wherein the device 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 device;
- 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.
Dependencies are inferred from the claim text.