SPIRE is a production-ready implementation of the SPIFFE APIs that performs node and workload attestation in order to securely issue SVIDs to workloads, and verify the SVIDs of other workloads, based on a predefined set of conditions.
An overview of SPIRE's architecture and fundamentals
How does SPIRE compare to other tools?
Understand SPIRE by comparing and contrasting it to related systems
You may also be interested to try out SPIRE by following some step-by step tutorials, or reviewing the SPIRE documentation for a detailed guide on how to install and configure SPIRE for different environments and use-cases.