Tech Specs Index
This folder contains implementation-focused technical specifications for the NFC wallet application. These sections are intended for developers building the frontend, backend, and card interfaces.
Sections
- Overview
- System Architecture
- Card Storage Model
- Cryptography
- Tamper Detection & Validation
- State Machine & Session Rules
- Write & Update Strategy
- Backend & Frontend Interfaces
- Risk & Financial Limits
- Implementation Notes
- Deployment & Maintenance
- Key Hierarchy & Session Grants
- Role-specific App Models
- Transaction Log Format
- Status Codes & Block Rules
- Infrastructure Stack
- Time, Validation & Assumptions
These specs are written as a development reference: clear behavior definitions, interface expectations, and implementation guidance for both the browser app and the backend service.