Project Eleven Acquires Riva Labs to Build an Integrated Post‑Quantum Crypto and Blockchain Stack

Project Eleven, a firm focused on post‑quantum security for digital assets, has acquired Riva Labs, a developer of blockchain cryptography. The deal brings together engineering teams and intellectual property across several areas of post‑quantum cryptography and blockchain infrastructure.

Current blockchains rely heavily on public‑key schemes such as ECDSA and Schnorr. Those signature algorithms are vulnerable to Shor's algorithm running on future fault‑tolerant quantum computers. Rather than applying isolated signature‑level patches, Project Eleven and Riva Labs plan to integrate quantum‑resistant primitives directly across the full technology stack: keys, wallets, signing hardware, smart‑contract account models, and consensus rules.

The combined roadmap covers four engineering areas:

• Signatures and key authentication: implementation of hash‑based post‑quantum signature schemes intended to replace vulnerable ECDSA/Schnorr keys without breaking transaction throughput.
• Custody and key management: post‑quantum multi‑party computation (MPC) to distribute secret material in a way that avoids single points of failure.
• Account abstraction: evolution of account abstraction (e.g., ERC‑4337) to natively support post‑quantum key types and signing workflows.
• Cryptanalytic testing and crypto‑agility: automated testing and validation pipelines to accelerate vulnerability testing and enable rapid algorithm swaps as standards change.

Riva Labs contributed a research methodology that uses automated tools for cryptanalysis, algorithm validation, and code testing. The merged group intends to maintain a crypto‑agile software architecture that can adapt as NIST‑standardized lattice and hash‑based algorithms evolve. A stated priority is deploying low‑overhead post‑quantum signing routines that run on consumer‑grade hardware, preserving real‑time transaction performance across decentralized networks.

Hash‑based and other post‑quantum signatures often come with larger signature sizes and potential performance costs. The acquisition signals a deliberate attempt to balance post‑quantum security with operational requirements: low overhead on consumer hardware, compatibility with existing wallet and custody models, and throughput demands of Layer‑1 networks. How this fits the broader ecosystem This acquisition aligns with industry moves to prepare infrastructure and critical services for post‑quantum threats. Related activity in the space includes post‑quantum verification platforms, hardware TPM chips with post‑quantum support, and enterprise quantum strategies that include post‑quantum cybersecurity components. The Project Eleven–Riva Labs integration is positioned specifically to address migration risk for public ledgers rather than focusing solely on academic algorithm selection.

• Technical releases detailing the integrated stack, implementation specifics for hash‑based signatures, and performance benchmarks.
• How account abstraction upgrades will be proposed and adopted within major Layer‑1 ecosystems.
• Open‑source cryptanalytic results and tooling that demonstrate the claimed crypto‑agility and automated testing workflows.