DPW Portability Security
Overview
DPW Portability Security establishes an unbreachable migration framework for Digital Paper Wallet mnemonics, enabling cross-vault and cross-Space transfers while maintaining absolute zero-knowledge guarantees throughout the entire portability lifecycle. Through authentication-bound encryption, opaque ciphertext migration, and distributed trust architectures, this security model ensures that mnemonics remain cryptographically protected during transit, storage, and reconstruction—even when crossing organizational boundaries. Available in Sovereign and HighRisk tiers, DPW Portability delivers unprecedented flexibility without compromising the fundamental sovereignty principles that define UnoLock's security architecture.
How It Works
- Transit Encryption Envelope: Mnemonics wrapped in multiple encryption layers during migration—base AES-256-GCM encryption, authentication-bound WebAuthn layer, and ephemeral transit keys—ensuring zero plaintext exposure across vault boundaries.
- Opaque Ciphertext Migration: Encrypted halves transfer as indistinguishable binary blobs with no metadata revealing content type, source vault, or destination purpose—servers process only encrypted payloads without correlation capability.
- Atomic Transfer Protocol: Migration operations execute as atomic transactions with automatic rollback on failure, preventing partial transfers that could compromise security or create orphaned key fragments.
- Multi-Vault Isolation: Each vault maintains independent encryption contexts with unique key derivation paths, ensuring compromise of one vault cannot decrypt mnemonics migrated to another vault.
Security Implications
- Cross-Boundary Protection: Mnemonics remain encrypted throughout inter-vault transfers, with re-encryption at destination using new vault-specific keys, preventing transit interception or replay attacks.
- Consent-Enforced Migration: Every portability operation requires explicit FIDO2/WebAuthn ceremonies at both source and destination, preventing silent or automated key transfers even with compromised sessions.
- Distributed Custody Security: Split-storage across multiple vaults enables trustless multi-party arrangements where no single entity can reconstruct complete mnemonics without coordinated authentication.
Use Cases
- Organizational Key Distribution: Sovereign tier enterprises distribute corporate wallet mnemonics across department vaults with role-based permissions, ensuring business continuity without centralized key exposure.
- Inheritance Planning Architecture: HighRisk tier users replicate DPWs into LegacyLink vaults for estate planning, maintaining encryption throughout the inheritance chain without requiring technical expertise from beneficiaries.
- Multi-Jurisdiction Redundancy: International organizations maintain DPW copies across geographically distributed vaults, ensuring regulatory compliance while preventing single-jurisdiction seizure risks.
Why It Matters
DPW Portability Security solves the critical challenge of key management flexibility in adversarial environments, enabling secure mnemonic distribution across trust boundaries without violating zero-knowledge principles. By maintaining encryption throughout migration, enforcing authentication at every step, and supporting distributed custody models, it provides the operational flexibility required for real-world asset management while preserving the uncompromising security standards demanded by high-value cryptocurrency holdings.
FAQs
Can UnoLock track mnemonics across different vaults?
No, each vault operates with independent encryption contexts and zero correlation capability. Servers cannot determine that identical mnemonics exist in multiple locations or track migration patterns.
What prevents unauthorized vault-to-vault transfers?
Multi-factor authentication requirements at both endpoints, combined with cryptographic proof of vault ownership, ensure only authorized parties can initiate or receive mnemonic transfers.
How does portability maintain security during network transmission?
Triple-layer encryption (base encryption, authentication binding, transit envelope) ensures that even complete network compromise cannot expose mnemonic content during migration.
Compliance & Privacy Regulations
- Data Portability Compliance: Satisfies GDPR Article 20 requirements while maintaining encryption, enabling compliant data transfers without exposing sensitive cryptographic material.
- Cross-Border Privacy: Encrypted migration ensures compliance with data localization requirements while preventing governmental access to plaintext mnemonics during international transfers.
Integration with Other Features
- SeedSafe Architecture: Inherits split-entry and authenticated retrieval mechanisms, ensuring consistent security model across all mnemonic operations regardless of vault location.
- LegacyLink: Seamless integration enables secure inheritance planning with mnemonics pre-positioned in successor vaults without premature key exposure.
- Threat Detection: Runtime monitoring validates migration endpoints, detecting and blocking attempts to transfer mnemonics to compromised or suspicious destinations.
