yodpay-core

YODPAY Core is an innovative offline-first payment protocol designed for the Gideon Mesh, utilizing both Rust and C++. This core implementation ensures payment functionality remains intact even without a network connection, making it an ideal solution for environments where connectivity is intermittent or unreliable.

Key Features

• Offline Spending Limits: Establish tiered risk profiles to manage spending effectively.
• Adaptive Local Consensus Modes: Operate in various network conditions with modes such as:
  • 3f+1 for normal conditions
  • 2f+1 for partitioned scenarios
  • 1f+1 for extreme isolation
• Local Finality: Ensure that transactions can be finalized without requiring online connectivity.
• Double-Spend Protection: Utilize sequential nonces to prevent fraud during offline transactions.
• Complete Transaction Lifecycle: Support transactions from PendingOffline through to ConfirmedLocal and Settled.

Structure and Status

The repository currently hosts a robust foundational protocol that implements essential offline payment logic, adaptive quorum systems, risk management features, and a transaction state machine.

Development Status:

• Implemented Features: The core offline payment system is operational, including adaptive quorum and double-spend protections.
• Planned Enhancements: Future development will focus on:
  1. Implementing database persistence
  2. Developing real mesh and local networking capabilities
  3. Integrating cryptographic signatures (ed25519)
  4. Facilitating human cryptographic approvals in extreme mode (1f+1).

Purpose

YODPAY addresses the limitations of traditional payment systems that depend on constant connections to centralized servers. In scenarios where network and power disruptions are frequent, YODPAY provides a reliable solution that allows devices to securely verify and record value transfers locally, reconciling transactions once connectivity is restored.