Paprika Backend

A simple EVM bytecode analysis tool that provides various capabilities through a RESTful API. This is the backend of Paprika.

Features

• Bytecode Analysis

  • Disassemble EVM bytecode
  • Generate Control Flow Graphs (CFG)
  • Compare contract similarities
  • Guess function signatures

• Smart Contract Interaction

  • ABI generation from bytecode
  • Function signature lookup
  • Call data generation
  • Transaction simulation

• EVM Multi-Chain Support

Cache Strategy

• In-memory LRU cache with size limit of 100 items
• SQLite persistence for runtime code and signatures
• Auto cleanup of expired data every 30 minutes (configurable)

Design

See more details in paper/*

Quick Start

1. Make sure we have installed Foundry

2. Copy .env.example to .env and fill out all values

3. Run make start

4. You can make calls through the examples in example/api.md.