crypto-protocol-diagram

Extract cryptographic protocol message flows into Mermaid sequence diagrams.

47|5|Updated Apr 25, 2026

Search Tags:#security #mermaid #protocol #formal verification #cryptography #sequence diagram

Ready to run

npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill crypto-protocol-diagram

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: crypto-protocol-diagram
Source: https://github.com/RedHatProductSecurity/prodsec-skills/tree/main/module/skills/crypto-protocol-diagram
Command: npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill crypto-protocol-diagram

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enables security and development teams to generate clear, visual representations of cryptographic protocol message flows, aiding understanding and security reviews.

Core Features & Use Cases

Protocol Extraction: Parses source code, RFCs, or formal models to identify parties, messages, and cryptographic operations.
Diagram Generation: Creates Mermaid sequenceDiagrams illustrating message exchanges, cryptographic steps, and phases.
Use Example: Visualize a TLS handshake or Signal protocol to verify message authenticity and key exchange sequences.

Quick Start

Load your protocol source or spec document into the Skill and specify the input to generate detailed security diagrams efficiently.

Frequently Asked Questions about crypto-protocol-diagram

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

FAQPage Schema

How do I visualize cryptographic protocol message flows from source code?▼

To visualize cryptographic protocol message flows, you can load your source code or specification into a tool that parses the logic and generates Mermaid sequenceDiagrams. This extracts the involved parties, message exchanges, and cryptographic operations automatically.

What is the best way to generate sequence diagrams from RFCs for security analysis?▼

Generating sequence diagrams from RFCs involves extracting the defined message exchanges and cryptographic steps. You can input the RFC document to automatically parse the protocol phases and produce a precise visual representation for security validation.

Can I use formal verification models to create protocol sequence diagrams?▼

Yes, formal models can be used to create protocol sequence diagrams. The process parses the formal verification definitions to identify cryptographic operations and parties, outputting a detailed visual map of the message flows for review.

Does this protocol visualization approach work with any programming language?▼

Yes, this protocol visualization approach works with various programming languages. It parses the source code to identify parties and cryptographic operations regardless of the language, generating a standardized Mermaid sequenceDiagram for security analysis.

Why do I need to visualize a TLS handshake or Signal protocol implementation?▼

Visualizing a TLS handshake or Signal protocol implementation is needed to verify message authenticity and key exchange sequences. It translates complex source code into clear diagrams, facilitating deeper security analysis and protocol validation.

What are the limitations of automated cryptographic protocol extraction?▼

Automated cryptographic protocol extraction relies on the clarity of the input source code, RFCs, or formal models. If the input lacks explicit message flow definitions or obscures cryptographic operations, the generated Mermaid sequenceDiagram may be incomplete for security analysis.