The Eight Immutable Design Principles
Kest is governed by eight immutable, non-negotiable design principles. They are the constitution of the framework — every API, every data structure, and every e
Kest Conceptual Architecture
Architecture
8Architecture Overview: Why Kest?
Modern distributed systems are secured at the perimeter — firewalls, API gateways, and static API keys form the first and often the only line of defense. Once a
Solving the Secret Zero Problem
The **Secret Zero problem** is the Achilles' heel of traditional distributed security: to access a secret manager, a workload needs a secret — but where does th
Merkle DAG: Cryptographic Execution Lineage
An action is not trusted merely because the immediate caller is authenticated. Trust requires a **cryptographically verified chain of custody** covering the ent
KestEntry: The Non-Fungible Audit Schema
Every `KestEntry` is a self-contained, cryptographically signed audit record. Unlike traditional log lines — which are mutable text that can be silently altered
Four-Tier ABAC Policy Architecture
Kest implements a **four-tier policy hierarchy** where every execution must pass through multiple layers of authorization before the protected operation runs. P
Fail-Secure Edge Case Handling
Kest's fourth principle (P4) mandates that **any failure mode must result in denial**, not a degraded-but-allowed path. This article documents every edge case t
Kest v0.3.0 — Requirements & Specification
> **Status**: Normative
Infrastructure
4Platform Identity & Context Resolution
Kest v0.3.0 introduced a modular identity system designed to solve the **Secret Zero** problem across a variety of runtime environments.
SPIFFE/SPIRE Integration
Kest relies heavily on robust cryptographic identities to provide non-repudiation guarantees. While SPIFFE/SPIRE is the recommended, production-grade identity c
Local Policy Sidecars (OPA & Cedar)
Kest evaluates policies locally using a sidecar architecture. Rather than relying on a centralized policy service that introduces latency and a single point of
OpenTelemetry Audit Aggregation
Kest generates a non-fungible audit trail in the form of OpenTelemetry (OTel) spans. Each time an execution hop completes, Kest produces a span containing the c
Assurance
2Zero Trust Compliance Framework Mapping
Kest's architecture maps directly to the foundational requirements of modern security and compliance frameworks.
Cryptographic Audit Trails
In conventional architectures, application logs are typically forwarded to a centralized logging server (e.g., Elasticsearch, Splunk) as flat text or JSON objec