lean-security-formalization

Formalize security properties and information-flow proofs in Lean 4.

2|Updated May 26, 2026
One-click install
npx skills add https://github.com/r-irbe/proof-skills --skill lean-security-formalization
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: lean-security-formalization
Source: https://github.com/r-irbe/proof-skills/tree/main/skills/lean-security-formalization
Command: npx skills add https://github.com/r-irbe/proof-skills --skill lean-security-formalization

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Formalizes security properties, access control, information-flow reasoning, and privacy concerns in Lean 4 to enable rigorous verification and trustworthy formalizations.

Core Features & Use Cases

  • Structured routing and handoffs guide researchers from initial modeling to review and enforcement.
  • Provides a reference handbook and per-skill references to support long-term knowledge capture and governance.
  • Suitable for Lean-based security formalization projects, proofs of information-flow properties, and GDPR/LED compliance modeling within Lean ecosystems.

Quick Start

Use the lean-security-formalization handbook as a reference and begin encoding a simple information-flow property in Lean 4.

Frequently Asked Questions about lean-security-formalization

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I formalize information-flow security properties in Lean 4?

Information-flow properties in Lean 4 are formalized by encoding confidentiality and integrity policies using the provided reference handbook. It supports rigorous proof verification for access control and privacy models.

Can I model GDPR compliance and access control policies in Lean 4?

Yes, GDPR and LED compliance modeling is directly supported. You can encode privacy constraints and access-control logic in Lean 4, leveraging formalization techniques to ensure rigorous verification of regulatory requirements.

What is the best way to structure trust-model proofs in a Lean-based project?

Trust-model proofs in Lean are structured using handoffs that route researchers from initial modeling to review and enforcement. This skill provides routing to lean-proof-review and lean-enforcement to ensure comprehensive verification.

Do I need prior Lean 4 experience to start encoding security formalization proofs?

Yes, foundational Lean 4 knowledge is required. The skill provides a reference handbook and structured routing for formalization, but users need basic Lean syntax understanding to begin encoding information-flow properties.

How does information-flow formalization handle confidentiality versus integrity proofs?

Information-flow formalization distinguishes confidentiality and integrity by encoding them as distinct security properties within Lean 4. This allows researchers to rigorously verify data privacy and unauthorized modification constraints.

What are the limitations of formalizing privacy policies in Lean 4?

Limitations include the complexity of mapping legal privacy texts like GDPR into strict mathematical logic. Lean 4 provides rigorous verification, but the formalization process requires precise modeling and does not interpret ambiguous legal language automatically.