Key Management (MPC / SSS)

Effective key management is the cornerstone of digital asset security for institutions and high-net-worth individuals. Nanar Consulting specializes in implementing robust custody solutions using cutting-edge cryptographic techniques like Multi-Party Computation (MPC) and Shamir Secret Sharing (SSS). We offer a holistic approach that combines in-depth training with expert-led architecture, design, and deployment of secure wallet infrastructures.

Our solutions are tailored to your specific operational needs and organizational structure, ensuring maximum security, control, and operational resilience for your digital asset holdings.

Understanding MPC and SSS

While both Multi-Party Computation (MPC) and Shamir Secret Sharing (SSS) enhance digital asset security by distributing control, they operate on distinct principles and offer different benefits:

• Multi-Party Computation (MPC): This technology allows multiple parties to jointly compute a function over their private inputs without revealing any of those inputs to each other. In key management, this means a private key is never fully formed or exposed in a single location, even during transaction signing. Each participant holds a "share," and transactions are cryptographically signed through a collaborative process without ever reconstructing the full key. MPC is ideal for active, online operations where real-time co-signing and policy enforcement are critical.
• Shamir Secret Sharing (SSS): SSS is an algorithm that breaks a secret (like a private key) into multiple unique "shares." A predefined minimum number of these shares (the threshold) is required to reconstruct the original secret. If fewer than the threshold number of shares are compromised, the secret remains secure. SSS is particularly useful for disaster recovery, key backup, and creating distributed offline cold storage solutions, where the full key is only reconstructed when absolutely necessary.

The choice between, or combination of, MPC and SSS depends heavily on an organization's specific threat model, operational workflows, and compliance requirements.

Tailored Solutions for Your Organization

Nanar Consulting architects, designs, and deploys custom MPC and SSS wallet infrastructures. We work closely with you to understand your unique needs and recommend the most suitable approach:

• For Financial Institutions: MPC can provide enhanced security for treasury management, enabling multiple internal signatories without a single point of failure and supporting complex approval hierarchies for transactions.
• For Decentralized Autonomous Organizations (DAOs): SSS can be used to secure governance funds or critical smart contract private keys, distributing control among key members and requiring a supermajority for access.
• For Family Offices & High-Net-Worth Individuals: A combination of MPC for active, operational funds and SSS for long-term cold storage or inheritance planning can provide a robust, multi-layered security strategy.
• For Startups & Ventures: Flexible MPC setups can allow for shared control among co-founders, evolving as the team and asset holdings grow, with SSS providing reliable backup.

Our deep expertise in mathematics and cryptography is invaluable in conducting rigorous security assessments, threat modeling, and cryptographic primitive selection. This ensures that the chosen key management solution is not only functionally sound but also resilient against the most sophisticated attacks.

Training & Ongoing Support

Beyond deployment, we provide comprehensive training on the operational aspects of MPC and SSS, ensuring your team is fully equipped to manage your new infrastructure securely and efficiently. This includes best practices for key share distribution, policy enforcement, disaster recovery, and ongoing security audits.

Secure your digital future with advanced key management strategies. Contact Nanar Consulting to architect a solution that aligns with your security needs and operational goals.