// What is it?
Vultisig is a multi-chain, multi-factor wallet infrastructure created by the founders of THORChain, the largest multi-chain DEX powered by Threshold Signature Schemes (TSS). The platform leverages the DKLS23 protocol developed by Silence Laboratories to provide a seedless, self-custodial wallet solution that supports both ECDSA and EdDSA signature types across major blockchain networks.
The core innovation lies in its implementation of Threshold Signature Scheme (TSS) technology, which eliminates the need for traditional private keys and seed phrases. Instead of storing a single private key that could be compromised, Vultisig splits control across multiple devices using vault shares. These shares never store actual funds and require a minimum threshold of devices to authorize transactions, providing enhanced security without sacrificing usability.
Target users include:
1) Individual crypto users seeking enhanced security without hardware wallets
2) Teams requiring multi-device authorization for treasury management
3) Developers building applications that need multi-chain support
4) AI agents and automated systems requiring secure key management
5) Institutions needing flexible multi-factor security setups
The technical architecture combines two TSS protocols: GG20 and the newer DKLS23. The DKLS23 implementation reduces communication rounds from 6 to 3 compared to GG20, delivering 5-10x faster signing times. The system supports flexible vault configurations including 2-of-2, 2-of-3, and 3-of-4 setups, with no on-chain registration of signing keys required.
Vultisig currently supports over 30 chains including Bitcoin, Ethereum, Solana, Arbitrum, Avalanche, BSC, Base, Bitcoin Cash, Cardano, Cosmos, Cronos, Dogecoin, dYdX, Kujira, Litecoin, Maya Protocol, Noble, Optimism, Osmosis, Polkadot, Polygon, Ripple, Sui, THORChain, Terra, TON, TRON, ZKSync and ZCASH. The platform maintains compatibility with any chains supported by Trust Wallet Core.
The platform has undergone security audits by multiple firms. Kudelski Security completed an audit of the mobile-tss-lib with all findings addressed. The $VULT token contract was audited by Code4rena, and the staking contract was audited by Zenith. The DKLS23 protocol itself was audited by Trail of Bits in February 2024.
Vultisig's ecosystem includes multiple components:
1) Mobile wallet apps for iOS and Android
2) Desktop applications for Windows and Linux
3) Browser extension for Chrome
4) Web application for viewing and airdrops
5) Marketplace for plugins and AI agents
6) SDK for developers
The platform is designed for the AI agent era, providing infrastructure that enables automated systems to securely manage digital assets. This represents a significant evolution from traditional wallets, positioning Vultisig as infrastructure for both human users and AI-powered applications.
// Why it matters
[x] Created by THORChain founders, bringing proven experience in building multi-chain infrastructure
[x] Live and operational across iOS, Android, Windows, Linux platforms with Chrome extension support
[x] Audited by multiple firms: Kudelski Security (mobile-tss-lib), Code4rena ($VULT token), Zenith (staking), Trail of Bits (DKLS23 protocol)
[x] Supports 30+ chains including major networks like Bitcoin, Ethereum, Solana
[x] Advanced TSS implementation eliminates seed phrases while maintaining self-custody
[x] DKLS23 protocol delivers 5-10x faster signing times compared to previous solutions
[x] No on-chain registration of signing keys required, enhancing privacy
[x] Flexible security configurations (2-of-2, 2-of-3, 3-of-4) for different use cases
[x] Open source development with published security audits
[x] Built for AI agent integration, positioning for next generation of crypto applications
// The Stack
-> TSS Protocols: DKLS23 and GG20 implementations for threshold signatures
-> Mobile Apps: Native iOS and Android applications
-> Desktop Apps: Windows and Linux support
-> Browser Extension: Chrome extension for web3 integration
-> SDK: Developer tools for integration
// The Numbers
=== CONTRACT INFO ===
-> Contract Address: 0xb788144DF611029C60b859DF47e79B7726C4DEBa
-> Status: Token just launched (whitelist wallets only), will be going live to public 28th Oct 2025.
-> Market Cap: $43.8m
-> Holders: 1242
=== SUPPORTED CHAINS ===
-> Total Chains: 30+
-> Major Networks: Bitcoin, Ethereum, Solana, Arbitrum, Avalanche, etc.
=== SECURITY ===
-> Audits: 4 (Kudelski, Code4rena, Zenith, Trail of Bits)
-> TSS Speed: 5-10x faster with DKLS23 vs GG20
-> Communication Rounds: Reduced from 6 to 3
// How It Works
Users begin by downloading the Vultisig app on their preferred platform (iOS, Android, Windows, or Linux) and creating a vault. During vault creation, users select their security configuration - either Fast Vaults (single device) or Secure Vaults (2-of-2, 2-of-3, or 3-of-4 setups). For multi-device setups, users scan QR codes to connect additional devices, with each device generating and storing its own vault share locally in the device's secure enclave.
The technical process leverages the DKLS23 protocol's three-round architecture for signing transactions. When initiating a transaction, the first round involves a commitment phase where participating devices generate and exchange commitments to their secret values. The second round performs secure two-party multiplication using oblivious transfer, replacing the more computationally intensive Multiplicative-to-Additive conversion used in older protocols. The final round computes and combines signature components to create a valid signature indistinguishable from standard ECDSA signatures.
Behind the scenes, Vultisig employs distributed key generation through a commit-release-and-complain procedure. Each device generates random values and commits to them, followed by commitment verification and a complaint phase to address any inconsistencies. Importantly, the private key never exists in its complete form - vault shares are combined using Zero-Knowledge Proofs to create signatures without reconstructing the full key. The system supports both ECDSA and EdDSA signature types, enabling compatibility across UTXO, EVM, BFT, and EdDSA chains.
Integration with blockchain networks is handled through Trust Wallet Core, enabling support for 30+ chains including Bitcoin, Ethereum, Solana, and more. The Chrome extension facilitates web3 interactions through a standardized interface, supporting methods like eth_requestAccounts, eth_signTransaction, and chain-specific signing operations. For Cosmos-based chains, the platform implements Amino and Protobuf transaction signing.
Security is maintained through multiple layers. Vault shares are stored in device secure enclaves with biometric locking. The DKLS23 protocol provides information-theoretic UC-security against malicious adversaries with dishonest majority. The system has been audited by multiple firms: Kudelski Security (mobile-tss-lib), Code4rena ($VULT token), Zenith (staking contracts), and Trail of Bits (DKLS23 protocol). All critical findings from these audits have been addressed through documented fixes.
Edge cases and limitations are handled through specific protocols. If a device is lost, the vault configuration can be modified through a resharing process without compromising security. For 2-of-3 or 3-of-4 setups, losing a minority of devices doesn't impact fund access. However, losing enough devices to break the threshold (e.g., both devices in a 2-of-2 setup) results in permanent loss of access. The system enforces strict backup requirements and provides emergency recovery tools that can reconstruct private keys for supported assets as a last resort.
Compared to traditional multi-sig solutions, Vultisig's TSS approach offers several technical advantages. There's no on-chain registration of signing keys, reducing gas costs and improving privacy. The signature output is indistinguishable from single-sig transactions, ensuring broad compatibility. The DKLS23 protocol's three-round design delivers 5-10x faster signing times than GG20's six-round approach, while eliminating the need for complex Paillier encryption operations.
// What's Coming
-> Additional chain integrations through Trust Wallet Core expansion, enabling support for new networks as they're added to the core library
-> AI agent marketplace development for automated transaction management and portfolio operations
-> Enhanced plugin ecosystem allowing third-party developers to extend wallet functionality
-> Web application improvements including expanded viewing capabilities and airdrop features
-> SDK enhancements for easier developer integration and expanded functionality
-> Cross-platform backup solutions for improved vault share management
-> Integration with additional DeFi protocols and web3 platforms
-> Advanced treasury management features for institutional users
// The Play
1. Download Vultisig on your primary device (iOS/Android for mobile, Windows/Linux for desktop)
2. Create a vault with appropriate security configuration based on your needs (2-of-3 recommended for optimal security/recovery balance)
3. Add secondary devices and generate vault shares, storing backups securely and separately
4. Install the Chrome extension for web3 interaction capabilities
5. Test small transactions across different chains to verify setup
6. Monitor platform updates and new chain additions through official channels
7. Consider staking $VULT tokens once staking contracts are live
// DegenHub Take
The THORChain founders' involvement here is significant - they've already built the largest multi-chain DEX using TSS technology and understand the complexities of cross-chain infrastructure. The shift from GG20 to DKLS23 protocol is technically impressive, but the real innovation is making institutional-grade security accessible to regular users and AI agents. The elimination of seed phrases while maintaining true self-custody could be a game-changer for mainstream adoption.The risk that most aren't considering: while the TSS technology is solid, the user experience around vault share backup and recovery needs to be bulletproof. One UX mistake here could lead to permanent fund loss. Watch how they handle this as they scale.
// Links
-> Website: https://vultisig.com
-> Discord: https://discord.com/invite/9wrAfNSRpS
-> Documentation: https://docs.vultisig.com
-> GitHub: https://github.com/vultisig
-> DexScreener: https://dexscreener.com/ethereum/0xb788144DF611029C60b859DF47e79B7726C4DEBa
Not financial advice. DYOR.
