Strongpoint Partners with Quantus to Enhance Post-Quantum Custody Solutions

Project Eleven made an announcement on Thursday stating that Quantus has officially joined as a development partner for Strongpoint, which is the company’s institutional custody platform specifically engineered to navigate the transition toward post-quantum cryptography.

Architectural Separation

The prevailing model of traditional crypto custody operates on the assumption that the cryptography currently protecting private keys will remain the same cryptography that protects assets in the future. Project Eleven is actively building for the distinct possibility that this fundamental assumption will eventually fail to hold. Should quantum-resistant blockchain systems emerge, it is highly unlikely that they will all switch to one single new cryptographic standard at the exact same moment.

Different networks are likely to adopt varying signature schemes, move according to different timelines, and require entirely different procedures for the migration of keys and the authorization of transactions. This divergence creates a significant operational challenge for banks and professional custodians. An institution cannot realistically rebuild its entire security and governance stack every single time an underlying blockchain modifies the way its signatures function.

Strongpoint is specifically designed to separate these two distinct layers. Institutional controls—including authentication, transaction approval policies, key management, governance, and audit trails—reside within a common control system. Beneath that specific layer, the cryptographic implementation can be changed depending on the requirements of the network. Project Eleven describes this specific architectural approach as “crypto-agility.”

The overarching goal is to ensure that the business logic of custody remains stable and consistent even as the mathematical foundations of the underlying networks continue to evolve. This design philosophy represents a move away from the traditional assumption of static cryptographic standards. By decoupling these two layers, the platform intends to reduce the friction and risk associated with migrating to new security standards.

Multi-Network Testing

Quantus will assist in shaping how this architecture functions when interacting with a network designed around post-quantum security. The two companies plan to integrate the Quantus Network into Strongpoint, with support targeted for the first quarter of 2027. This integration is not yet live. There is currently no immediate quantum threat that is forcing institutions to migrate their assets tomorrow.

This partnership follows the earlier launch of Strongpoint by Project Eleven, which featured the Zcash Foundation as an initial development partner. The addition of Quantus as a second partner indicates that the platform is being tested against networks that possess very different requirements. It is not being built around the constraints of a single chain.

This approach to multi-network testing allows Project Eleven to refine the “crypto-agility” model within environments that have distinct post-quantum security parameters. Quantus provides Strongpoint with another environment in which to build and stress-test these workflows. The platform is currently undergoing testing to ensure it can handle the varying timelines and the different signature schemes of various post-quantum networks.

Operational Readiness

Quantum computing remains a long-term risk rather than a present-day break of Bitcoin or other major blockchain cryptography. There is currently no known machine capable of simply extracting current private keys at scale. The concern arises if sufficiently powerful quantum systems arrive while trillions of dollars of digital assets are still protected by cryptographic assumptions that can no longer be trusted.

For retail holders, a network upgrade might eventually involve moving funds to a new address type. For institutions, however, the migration is far more complicated. Policies, hardware, compliance procedures, signers, approvals, and audit systems may all depend on the existing key architecture. This inherent complexity is why custody providers are beginning to treat quantum readiness as an operational problem before it transforms into an emergency.

Rebuilding custody infrastructure after the cryptography becomes urgent would be the worst possible time to start such a process. The work is happening now to ensure that workflows are established well in advance. The next step is the technical integration of the Quantus Network, with the targeted support window set for the first quarter of 2027.