Privacy-preserving wallet infrastructure for managing Logos blockchain accounts, signing shielded transactions, and interacting with the Logos ecosystem. The wallet prioritizes self-custody, user sovereignty, and simplified onboarding while maintaining strong privacy guarantees.
Ai generated
This entire document was generated by an LLM and has not yet been human-reviewed.
FURPS+
Functionality
- Generate and securely store private keys with industry-standard encryption (AES-256, hardware-backed when available)
- Create and sign shielded transactions with privacy-preserving zero-knowledge proofs
- Manage multiple accounts and stealth addresses for transaction unlinkability
- View shielded balances without revealing transaction history on-chain
- Support hardware wallet integration (Ledger, Trezor) for enhanced security
- Enable social recovery mechanisms for key restoration without seed phrase complexity
- Integrate with Logos Messaging for transaction notifications and address book functionality
- Provide backup and recovery options via Logos Storage (encrypted, user-controlled)
Usability
- Provide intuitive UI for non-technical users (addressing “wallet setup complexity” barrier identified in privacy community research)
- Offer guided onboarding flow with clear explanations of privacy features and trade-offs
- Support seamless integration with Logos App, browser extension, and mobile platforms
- Enable one-click connection to dApps via Logos JS SDK
- Provide clear transaction preview with privacy implications before signing
Reliability
- Ensure secure key storage with defence against common attack vectors (phishing, clipboard hijacking, screen capture)
- Implement automatic encrypted backups to user-controlled Logos Storage
- Support graceful degradation when Logos node unavailable (queue transactions for later broadcast)
- Provide transaction confirmation reliability with configurable finality thresholds
Performance
- Generate and sign shielded transactions in <2 seconds on standard hardware
- Support concurrent transaction creation across multiple accounts
- Optimise WASM-based ZK proof generation for browser environments
- Minimize battery drain on mobile devices through efficient proof batching
Supportability
- Support multiple wallet formats (browser extension, desktop, mobile, CLI) from shared codebase
- Enable seamless wallet migration across platforms (export/import with encryption)
- Provide hardware wallet integration API for third-party device support
- Maintain backward compatibility with wallet data formats across versions
+ (Privacy, Anonymity, Censorship-Resistance)
- Privacy: Shielded addresses and balances prevent public visibility of holdings and transaction amounts
- Anonymity: Stealth addresses and transaction unlinkability prevent linking user activities across transactions
- Privacy-Preserving Compliance: ZK proofs enable selective disclosure (prove solvency, jurisdiction, accreditation without revealing full wallet state)
- Metadata Protection: Integration with Tor/mixnets prevents IP address leakage during transaction broadcast
- Censorship-Resistance: Self-custody ensures no third party can freeze or confiscate funds
- Key Sovereignty: “Not your keys, not your coins” - users maintain full control of private keys without custodial intermediaries
Demand Validation
Potential Users: All Logos blockchain users (developers, DeFi participants, movement organizers, end users)
Use Cases:
- Newcomers: Install Logos Wallet to receive first shielded tokens and explore ecosystem with privacy by default
- DeFi Users: Manage shielded assets across multiple DeFi protocols (DEX, lending, staking) with unified interface
- Movement Organizers: Accept private donations, manage DAO treasury with multisig integration, pay contributors anonymously
- Developers: Test dApp integrations with wallet connection simulation and transaction signing
- Privacy Advocates: Use stealth addresses and transaction unlinkability to prevent surveillance and tracking
- Compliance-Conscious Users: Generate ZK proofs of solvency, jurisdiction, or accreditation without revealing full wallet state
Possible Implementation
Multi-Platform Architecture
Logos App Wallet (Desktop)
- Full-featured wallet integrated as Logos Core module
- Direct access to local Logos blockchain node
- Maximum privacy (no external RPC calls, local ZK proof generation)
- Automatic backup to Logos Storage
- Hardware wallet support via USB/Bluetooth
Browser Extension Wallet
- Lighter-weight wallet for web3 interactions
- WASM-based ZK proof generation in browser
- Connect to public Logos RPC endpoints or user-specified node
- MetaMask-style dApp connection flow
- Privacy trade-off: IP exposure to RPC endpoints (mitigated via Tor integration)
Mobile Wallet (iOS/Android)
- Native mobile app with simplified UX
- Mobile-optimized proof generation (batching, background processing)
- QR code scanning for address input and transaction signing
- Biometric authentication (Face ID, Touch ID, fingerprint)
- Push notifications via Logos Messaging integration
CLI Wallet (Advanced Users)
- Command-line interface for scripting and automation
- Headless operation for server-side wallet management
- Full node integration for maximum privacy
- Ideal for developers, power users, and infrastructure operators
Key Technical Components
Key Management
- Hierarchical Deterministic (HD) wallet (BIP32/BIP39 compatible where applicable)
- Multiple derivation paths for compartmentalized accounts
- Hardware wallet integration via standard interfaces (WebUSB, HID)
- Social recovery via threshold secret sharing (Shamir’s Secret Sharing)
Transaction Creation
- Shielded transaction builder with UTXO/account model support
- ZK proof generation (WASM for browser, native for desktop/mobile)
- Fee estimation with privacy considerations (no fee fingerprinting)
- Transaction serialization and broadcast via Logos blockchain RPC
Privacy Enhancements
- Stealth address generation and scanning
- Transaction decoy selection algorithms
- Tor/I2P integration for network-level privacy
- Address reuse prevention warnings
Technical Validation
Risks & Challenges:
- Balancing user-friendly onboarding with security best practices (seed phrase education)
- WASM proof generation performance on low-end devices and browsers
- Key management complexity for non-technical users (social recovery as mitigation)
- Hardware wallet vendor support and integration maintenance
- Privacy-usability trade-offs (stealth addresses add scanning overhead)
- Cross-platform UI/UX consistency across desktop, browser, mobile
- Secure encrypted backup without centralized cloud providers
Dependencies:
- Logos Blockchain RPC endpoints for transaction broadcast and chain state
- ZK proof libraries (e.g., libsnark, bellman, circom) for shielded transaction construction
- Logos Messaging for transaction notifications and address book (optional)
- Logos Storage for encrypted wallet backups (optional)
- Hardware wallet SDKs (Ledger, Trezor) for hardware integration
- Platform-specific secure storage APIs (Keychain on macOS/iOS, Keystore on Android, Windows Credential Manager)
Integration Points:
- Logos JS SDK for dApp wallet connection and transaction signing
- Logos Core as wallet module in Logos App
- Multisig for multi-signature wallet functionality
- Private DEX, Private Lending, and other DeFi protocols for asset management
- Hardware wallets (Ledger, Trezor, Keystone) via standardized integration APIs
- Development Journey for browser extension development
- Browser wallet extensions (potential interoperability layer)
Privacy Community Insights
Based on analysis of privacy-focused cryptocurrency communities (Monero, GrapheneOS, privacy advocates):
Key Pain Points Addressed:
- “Technical complexity of setting up wallets”: Simplified onboarding flow with guided setup and clear privacy explanations
- “Lack of user-friendly interfaces”: Intuitive UI prioritizing ease of use without sacrificing security
- “Steep learning curve for newcomers”: Progressive disclosure of advanced features, sensible defaults for privacy
- “Not your keys, not your coins”: Non-custodial architecture ensuring user sovereignty
Community Values Reflected:
- Self-custody: Private keys never leave user’s device (except for encrypted backups)
- Privacy by default: All transactions are shielded unless user explicitly opts out
- Open-source: Wallet codebase publicly auditable and community-contributed
- Decentralization: No reliance on centralized wallet providers or custodians
- Fungibility: Shielded transactions ensure all Logos tokens are indistinguishable
Deployment Models
Logos App Integration (Primary)
- Wallet as core module in Logos App
- Deepest integration with Logos Core infrastructure
- Maximum privacy (local node, no external dependencies)
- Target: Power users, privacy advocates, developers
Browser Extension (Onboarding)
- Lightweight wallet for web onboarding
- Lower friction than Launcher installation
- Privacy trade-offs clearly communicated
- Upgrade path to Logos App for full features
- Target: Newcomers, web3 users, casual users
Mobile App (Accessibility)
- Dedicated mobile wallet for iOS/Android
- Mobile-first UX optimizations
- Simplified feature set for on-the-go transactions
- Target: Mainstream users, mobile-first demographics
Standalone Desktop App (Alternative)
- Desktop wallet without full Logos App
- Lighter than Launcher but more private than browser extension
- Option for users who only need wallet functionality
- Target: Users wanting privacy without full Logos ecosystem adoption