Oliver Gugger Using Macaroons with #bitcoin #LightningNetwork

## WCN Episode Summary: Oliver Gugger on Macaroons and Lightning Network (2019-07-08)

This episode of WCN featured a presentation by Oliver Gugger on "macaroons," a security mechanism he describes as "cookies on steroids," and their application within the Lightning Network. Gugger, alongside Alex Axel Rodd (who initially implemented macaroons for Lightning Development - L&D), detailed how these nested, chained H Mac signatures enhance security and restrict access to Lightning Network services.

Main Topics:

• Macaroon Functionality: Explanation of how macaroons work, including caveats (restrictions) like time limits and IP address restrictions.
• Access Control: Demonstrating how to restrict access to Lightning Network services using macaroons.
• L&D Enhancements: Gugger's ongoing work to improve macaroon functionality within L&D, including custom permissions, request-specific caveats, and a new "accounts" system.
• "McRoonies" Tool: Introduction to a new tool for managing allowances and enabling micro-transactions within web applications.
• Future Development: Discussion of granular RPC call restrictions, third-party caveats, and integration with wallets like Zap and Shango.

Key Quotes:

• "Cookies on steroids" (describing macaroons)
• “We’re implementing features requested by Alex” (referring to Alex Axel Rodd)
• Discussion of allowing users "limited spending power (e.g., 50,000 Satoshis daily)"

People Mentioned:

• Oliver Gugger
• Alex Axel Rodd

Bitcoin Price: Not mentioned.

The episode highlighted the potential for macaroons to improve Lightning Network security and enable innovative features like controlled spending and micro-transactions through tools like "McRoonies."