VeilPay - CVCT Protocol

CVCT (Confidential Value Confidential Transfer) is a privacy-first token protocol on Solana using Fully Homomorphic Encryption (FHE).

What is CVCT?

CVCT enables:

• Fully encrypted token balances - Balances are never visible on-chain, even to validators
• Confidential transfers - Transfer amounts remain encrypted throughout the transaction
• Programmable privacy - Build privacy-preserving DeFi applications with encrypted state
• On-chain verification - Verify correctness without revealing sensitive data

Example: VeilPay Payroll

VeilPay Payroll demonstrates CVCT's capabilities by implementing a privacy-preserving payroll system where:

• Salaries remain confidential
• Headcount is not exposed
• Compensation structures are private
• Payments are auditable through selective disclosure

Technology Stack

• Solana - High-performance blockchain
• Inco Network - FHE coprocessor for encrypted computation
• Anchor - Solana program framework
• Next.js 14 - Modern web framework
• TypeScript - Type-safe development

Getting Started

First, run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev

Open http://localhost:3000 with your browser to see the result.

Architecture

CVCT Core Components

1. CVCT Mint - Token mint with encrypted supply tracking
2. CVCT Account - User account with encrypted balance
3. CVCT Vault - Backing token storage for 1:1 redemption
4. FHE Operations - Encrypted arithmetic via Inco Network

Payroll Example (Reference Implementation)

Built on top of CVCT primitives:

• Organization - On-chain entity management
• Payroll - Payment schedule configuration
• Members - Recipients with encrypted payment rates
• Treasury - Organization's CVCT token pool

Documentation

• Quick Start Guide - Get running in 5 minutes
• Testing Guide - Complete testing walkthrough

Use Cases

CVCT can power various privacy-preserving applications:

Use Case	Description	Status
Payroll	Private compensation management	Reference Implementation
DeFi	Confidential trading and lending	Coming Soon
Voting	Private on-chain governance	Coming Soon
Auctions	Sealed-bid auctions	Coming Soon
Gaming	Hidden in-game economies	Coming Soon

Key Addresses

Component	Address
Program ID	Sd92uPUtbHdnoRFmi6xCEsLVh4Yg3KYcNbGXeSJVL5R
Inco Lightning	5sjEbPiqgZrYwR31ahR6Uk9wf5awoX61YGg7jExQSwaj

Learn More

• Solana Documentation
• Inco Network
• Next.js Documentation

Contributing

This project is under active development as part of the Solana Privacy Hackathon.

License

MIT