A summary is provided here.
A summary is provided here.
A summary is provided here.
Radio modules and modems for communications devices have standardized on the AT command set for the past ~40 years. The AT command set and related APIs require a processor and a radio module to be awake and communicate via a data bus, which requires both the processor and the radio module to be in active states and consequently consume power. This patent application of ~125 pages and ~20 figures provides a shared nonvolatile memory interface to allow completely independent sleep states for a processor and a radio module. This architecture supports a common industry goal for IoT applications to support a 5-10 year battery life .
The "Smart Secure Platform" depends on the secure delivery of firmware from a server to the Primary Platform. The associated Global Platform standard for Open Firmware Loader depends on ECC certificates remaining secure for significantly longer than the coming decade. Quantum computers can feasibly break existing cryptography within several years, creating significant security risks for the SSP. This patent application solves the problem of authenticated and secure firmware transfer to a primary platform without requiring traditional X.509 certificates. Thus, security is provided against quantum computers, while leveraging existing ECC algorithms.
This patent application solves the significant problem for a “Smart Secure Platform” (SSP) to securely determine certificate revocation for firmware download. Global Platform's standard for the Open Firmware Loader v 1.3 was silent regarding determining certificate revocation. Current certificate chain validity checks are not straightforward for a SSP because a tamper resistant element (TRE) is relatively isolated and normally cannot independently and securely keep track of date/time. But, current date/time is required to properly verify certificates and keep the system secured.
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