DNS-Based Key Distribution for Trusted AI Data Streams

The patent extracts the complex PKI certificate management functionality from the resource-constrained devices and consolidates it into a centralized Key Distribution Service. Devices no longer need to store, manage, or process certificates locally - instead, they authenticate through simplified token-based mechanisms while the KDS handles all certificate validation and key management operations centrally, eliminating the burden of PKI complexity from edge devices.

The patent introduces a Key Distribution Service as an intermediary between devices and the certificate authority infrastructure. This mediator handles all complex PKI operations including certificate validation, key distribution, and authentication token generation, allowing devices to interact with a simplified interface while maintaining security through the intermediary's backend PKI system.

The patent extracts private key storage and management from resource-constrained devices entirely. Instead of generating and storing asymmetric keypairs on devices with limited secure storage, the system uses a centralized Key Distribution Service to generate and manage all cryptographic materials, distributing only ephemeral authentication tokens to devices for each session.

The patent performs all cryptographic key generation and validation operations in advance through the Key Distribution Service before devices need to authenticate. The KDS pre-validates device identities, pre-generates authentication tokens, and pre-establishes security associations, so devices receive ready-to-use credentials without needing to perform complex cryptographic operations or store sensitive key material.

The patent implements a self-service Key Distribution Service that operates as an internal certificate authority within the organization. Instead of repeatedly purchasing certificates from external commercial CAs, the system runs its own trusted CA infrastructure, allowing devices to obtain authentication credentials from an internal service that does not require external licensing or recurring fees.

The patent creates a universal Key Distribution Service that can issue authentication credentials to any number of devices within the organization without additional per-device licensing costs. The internal CA infrastructure serves multiple devices and applications simultaneously, replacing the need for individual commercial CA certificates for each device with a single internal PKI system that scales without recurring costs.

The patent extracts the computationally intensive certificate chain verification operations from resource-constrained devices and relocates them to the centralized Key Distribution Service. The KDS performs all certificate validation, chain verification, and cryptographic operations centrally, then returns simplified authentication tokens to devices that require minimal processing power to validate.

The patent performs all authentication verification operations in advance through the Key Distribution Service before devices need to authenticate. The KDS pre- validates device identities, pre-generates authentication tokens with embedded verification data, and pre-establishes security associations, so devices receive ready-to-use credentials that can be validated with simple local checks rather than full certificate chain verification.

The patent introduces a Key Distribution Service as an intermediary that manages all symmetric key generation, distribution, rotation, and revocation operations. Instead of devices manually managing their own keys or coordinating key exchanges, the KDS automatically generates session keys, distributes them to authorized devices, and handles key renewal and rotation transparently, eliminating the complexity of peer-to-peer key management.

The patent implements automated key lifecycle management through the Key Distribution Service that operates autonomously without requiring manual intervention. The system automatically generates cryptographic keys, distributes them to devices based on group memberships and access policies, rotates keys on schedule, and revokes access when needed, allowing the key management infrastructure to service itself without operator involvement.