Abstract
This publication discloses a customer-facing API key aliasing system (A19) and a companion third-party data payload protection system (A19B). A19 provides alias indirection for API credentials across web, mobile, CI/CD, AI agent, and third-party integration environments — with policy-bound alias issuance, zero-downtime dual-alias rotation, device attestation binding for mobile (Apple DeviceCheck, Google Play Integrity), selective alias revocation, anomaly monitoring, and closed-loop revocation. A19B adds three layers of application-layer security above TLS: multi-identity outbound payload signing binding five identity dimensions (application, user, browser, device, alias) into a single HMAC-SHA256 attestation; selective AES-256-GCM field-level encryption with automatic PII detection and field-path AAD binding to prevent field-swapping attacks; and inbound response verification combining schema drift detection, injection scanning, EWMA-based latency and volume anomaly detection, and a per-endpoint circuit breaker. Both systems are implemented in DevFortress SDK v4.8.0 and validated across 7 production applications with 703/703 assertions passed.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Ndungu, Duncan Ndegwa, "Customer-Facing API Key Aliasing System with Policy-Bound Lifecycle, Zero-Downtime Rotation, Third-Party Data Payload Protection, and Closed-Loop Revocation for Web, Mobile, and Agent Credential and Data Security", Technical Disclosure Commons, (April 24, 2026)
https://www.tdcommons.org/dpubs_series/9907