Basic Information
Project Name: AirGap
Project Track: infra-security
Team Name: Papers AG
Team Members: 20
Social Info
Telegram: @ash_eth1
X (Twitter): @AirGap_it
Discord: AirGap
Website: https://airgap.it
Project Overview
AirGap is a self-custody open-source cold wallet that transforms any spare smartphone into an air-gapped cold wallet, providing maximum security without the need for dedicated hardware wallets. It consists of two applications:
- AirGap Vault (offline) – Stores private keys completely offline and signs transactions securely via QR codes, preventing any exposure to online threats.
- AirGap Wallet (online) – Manages balances, initiates transactions, and interacts with dApps, ensuring a seamless user experience.
But Why us?
- Totally Air-gapped Security – AirGap Vault operates without Bluetooth, USB cables, Wi-Fi, or NFC, making it 100% offline, eliminating any potential attack vector from connected devices.
- Fully open source & free to use: Anyone can audit, contribute to, or fork AirGap - ensuring transparency, trust, and no vendor lock-in.
- Globally accessible: No shipping, customs, or availability issues anyone with a spare smartphone, anywhere in the world, can set up a secure cold wallet instantly.
- True Randomness for Seed Generation – Unlike traditional wallets that rely on a device’s RNG (which can be manipulated), AirGap uses device sensors (gyro,touch,mic,camera) and supports manual methods like dice roll and coin flip entropy to generate seed phrases, ensuring verifiable, human-generated randomness for maximum security.
- Advanced Security features - AirGap includes BIP-39 passphrase protection, BIP-85 deterministic seed derivation, and social recovery, allowing users to add extra layers of security and flexibility to their wallets.
Project Goal
The goal is to enable fully air-gapped, QR-based transaction signing on TRON blockchain for unmatched security without the need for hardware wallets.
Unique Value Proposition:
Let’s explore the key problem statements and how AirGap addresses them.
1. Hardware Wallet Accessibility
Problem:Devices like Ledger or Trezor are hard to source in many regions, and prone to supply chain risks.
AirGap’s Solution:Converts any spare smartphone into a secure cold wallet — no proprietary hardware or shipment required.
2. Online Wallet Vulnerabilities
Problem:Hot wallets (extensions, mobile apps) expose private keys to malware and phishing on connected devices.
AirGap’s Solution:Uses a two-device model — Vault (offline) securely holds keys; Wallet (online) manages transactions. Keys never touch the internet.
3. Weak Entropy & PRNG Attacks
Problem:Most wallets rely on system-generated entropy that may be predictable.
AirGap’s Solution:Adds real-world randomness through camera, mic, gyroscope, touch — plus dice roll and coin flip options — to protect against PRNG vulnerabilities.
4. Closed-Source Hardware Limitations
Problem:Many hardware wallets are closed-source, limiting auditability and trust.
AirGap’s Solution:Fully open-source and reproducible — users can audit the code and build from source.
5. Poor Key Management Flexibility
Problem:Limited support for advanced key derivation and backup options.
AirGap’s Solution:Supports BIP-39 Passphrase, BIP-85 seed derivations
6. Lack of Multi-Account Arrangement
Problem:Most wallets are not optimized for users managing multiple accounts across chains.
AirGap’s Solution:Allows users to create and manage multiple accounts with ease, offering structured organization and control in one secure interface.
Project Demo: https://www.youtube.com/watch?v=OaYiXsD2sQ8
Expected Completion Date: Project is already LIVE.
Current Progress (%): AirGap is already live and has established itself as a highly secure solution for self-custody. Building on this strong security foundation, we now aim to expand the wallet-side experience by introducing new features that significantly enhance usability and overall UX.
Download Links
AirGap Wallet
iOS — App Store
Android — Google Play (GitHub APK)
AirGap Vault
iOS — App Store
Android — Google Play (GitHub APK)
Technical & Governance Details
Project Test Instructions: How to setup AirGap | AirGap Support
Technical Details
Core functionality
airgap-coin-lib— foundational open-source library: A modular, multi-protocol JS library that handles:
- Transaction building: Construct raw transactions, inputs, outputs, memos, fees.
- Cryptographic signing logic: Abstracted across multiple blockchains.
- Broadcasting: Push signed transactions to blockchain nodes via RPC or HTTP.
Any chain integration begins here, making it portable, reusable, and audit-friendly.
Two-app modular architecture for true air-gapping -
AirGap Vault: Runs on an entirely offline device. Stores private keys, generates secure wallets, and signs transactions using only QR codes — no Bluetooth, USB, or NFC.
AirGap Wallet: Runs on an internet-connected device. Used to create transactions, scan signatures from Vault, broadcast transactions, and interact with dApps.
Together, they ensure private keys never touch an online device, achieving a fully air-gapped flow.
How is the Project Governed?
AirGap is an open-source project, allowing anyone to review, contribute, and improve the codebase. It is currently maintained by Papers GmbH, ensuring consistent development and high security standards. The project is self-sustaining and relies on ecosystem grants to support new integrations and feature expansion. Over time, it has benefited from contributions by a wide range of developers.
Funding & Business Model
Revenue Model: AirGap is a lean, self-sustaining project with funding secured through previous grants from leading ecosystems such as Polkadot, ICP, Optimism,Rootstock, Tezos, Cosmos, and Stellar. In addition to grant support, AirGap receives community donations and generates revenue through the AirGap Shop, which offers security-focused products like metal backup plates.
Interested in TRON Having a Stake?: No
Preferred Collaboration Method: We propose starting with a basic TRON integration into the AirGap solution to ensure secure and seamless support. Following this, we are open to collaborating with TRON DAO and ecosystem partners to explore and implement additional features on the AirGap wallet that enhance user experience and ecosystem utility.
Ecosystem Impact
Partnerships: AirGap has received grants from leading ecosystems such as Polkadot, ICP, Optimism, Cosmos, Coreum, Stellar, Aeternity, Tezos, Rootstock, Kusama, Moonbeam, Moonriver, Astar, and Groestlecoin.
Time on TRON: Yet to launch on TRON
Project Milestones
Milestone 1: TRON airgap-coinlib Integration ($10,000)
airGap-coin-lib is the core open-source library that powers the entire AirGap ecosystem.
It acts as the engine that handles transaction creation, signing, and broadcasting for different blockchains. Whenever a new chain is integrated into CoinLib, it automatically becomes compatible with both AirGap Vault (offline cold wallet) and AirGap Wallet (online app).
Because it’s fully open source, third parties can also use coin-lib to build their own wallets or tools for specific chains — without starting from scratch.
Timeline: Weeks 1–3 runtime
Description:
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Integrate TRON into AirGap’s open-source airgap-coin-lib, which handles transaction construction, signing logic, and broadcasting.
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Testing of the airgap-coin-lib integration
Milestone 2: Vault Integration ($5,000)
Timeline: Weeks 3–4 runtime
Description:
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Enable TRON key storage and offline signing via AirGap Vault
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Ensure reproducible builds and compatibility with QR-based workflows
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Testing of the AirGap Vault integration
Success Metrics:
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Offline signing of TRON transactions via Vault
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Private keys never exposed to internet-connected device.
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Documentation of cold storage setup for TRON
Milestone 3: Wallet Integration & Token Support ($10,000)
Timeline: Weeks 4–6 runtime
Description:
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Add support for TRON in AirGap Wallet
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Add top 10 TRON tokens by market cap for portfolio view
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Integrate Reown (formerly known as WalletConnect) support
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Testing of the Airgap Wallet integration
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Full integration tests of airgap-coin-lib, Airgap Wallet and vault
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Deployment and Publishing in both app stores
Total Budget Requested - $25,000
Note: AirGap will provide full post-integration support for two years, including maintenance, community engagement, and prompt bug fixes to ensure the integration remains robust and up to date.
Project in 5 Years: Our long-term vision is for AirGap to evolve into a fully self-sustaining, open-source cold wallet solution maintained and continuously improved by a global community of contributors.