Selected work.

Two issued US patents in format-preserving cryptography, both assigned to Micro Focus LLC and filed during prior commercial FPE platform work.

• US 10,686,588 · Tweak-based string encryption · granted 2020-06-16 (with Minner, Spies)
• US 12,368,572 · Method and apparatus for protecting numbers and strings using format-preserving encryption with automatic precision · granted 2025-07-22 (with Smith, Minner, Wu)

Cyphera — product site at cyphera.io, code at github.com/cyphera-labs. 40+ public repos covering FPE SDKs across 10 languages, KMIP clients, keychain key providers, and platform integrations:

• open-kmip-server · open-source KMIP 1.4 key management server — mTLS, REST API, audit logging, embedded dashboard
• open-pki-server · internal certificate authority and certificate lifecycle server
• cyphera-conformance · cross-language NIST-vector + behavior conformance suite

HDE repositories — experimental systems, tooling, and prototypes at github.com/Horizon-Digital-Engineering:

• fpe-demo-mcp · demo MCP server showing FF3 FPE for secure LLM data handling (writeup on Medium)
• policymcp · small MCP server for querying policy documents
• fpe-arena · clean-room FF3 reference implementations (educational / withdrawn NIST FPE)

Cyphera — Applied cryptography and data protection. FPE SDKs, KMIP, key-management integrations, and developer-facing security libraries. Pre-launch.

Cyphera Kernel — Memory-safe Linux-compatible kernel in Rust. In development.

AI Infrastructure — MCP servers, agent memory, local-first tooling (see repositories above).

Applied R&D — Research and prototype development for security, cryptography, memory-safe systems, and dual-use infrastructure.

PhotonForge — Developer-tools SaaS. Status Page in production today; captcha, scrape firewall, and CMP in flight. photonforge.io

LunaRosa — Privacy-first health app used as a testbed for local-first data protection and user-controlled privacy patterns. lunarosa.app

HDE Games — Cross-platform game-development side project; experimental Roblox titles. horizondigital.games