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zk-nullifier

Official

Prevent double spending on Solana

Software Engineering#privacy#pda#zk#solana#nullifier#double spending
AuthorLightprotocol
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill addresses the challenge of preventing double spending in custom Zero-Knowledge (ZK) Solana programs by implementing rent-free nullifier PDAs, crucial for privacy-preserving applications.

Core Features & Use Cases

  • Nullifier Implementation: Provides patterns for creating PDAs that act as unique identifiers for actions, ensuring they are performed only once.
  • Cost Efficiency: Compares the cost of using standard PDAs versus Compressed PDAs for nullifiers, highlighting significant savings.
  • ZK Integration: Guides on integrating nullifiers within ZK Solana programs, including proof verification and state management.
  • Use Case: A decentralized exchange (DEX) using ZK proofs can leverage nullifiers to ensure that a user cannot spend the same asset twice in a transaction.

Quick Start

Use the zk-nullifier skill to implement rent-free nullifier PDAs for double-spend prevention in your ZK Solana programs.

Dependency Matrix

Required Modules

None required

Components

referencesscripts

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: zk-nullifier
Download link: https://github.com/Lightprotocol/skills/archive/main.zip#zk-nullifier

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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