Quantum eMotion Unit SKV Wins USPTO Notice of Allowance for SecureKey Patent

Crypto exchange Coinbase revealed by September 22 that it is developing a crypto custody system capable of supporting any post-quantum signature scheme blockchains may adopt in the future, in preparation for the risk of quantum computers cracking encryption. Yehuda Lindell, the company's head of cryptography, explained this in a video interview with the Mara Foundation. The company is upgrading its current custody infrastructure, which uses multi-party computation, so that it can withstand attacks by quantum computers, and is also considering an alternative approach using specialized devices called hardware security modules in case a signature scheme is adopted that multi-party computation cannot handle. According to the Mara Foundation, the company protects roughly 250 billion dollars' worth of digital assets centered on this system. On July 23, Coinbase explained on its official blog that its current key management system, CoreKMS, protects about 99.9 percent of its custodied assets, and that it is also developing a quantum-resistant version, PQ-CoreKMS, with plans to build an automated infrastructure within one year that can securely sign while distributing keys across multiple locations. Over the following two to three years, it aims to develop multi-party computation that does not require generating a complete private key even for quantum-resistant signatures.

Aviatrix announced Harvest and Decrypt Protection, which it calls the first post-quantum protection that encrypts data and simultaneously governs what a compromised workload can reach, delivering crypto-agile encryption and Communication Governance as one policy in software on the network enterprises already run. The offering arrives a month before federal civilian agencies must file post-quantum migration plans on October 22, and ahead of the 2029 full quantum-readiness roadmaps published by Google and Microsoft; Amazon Web Services publishes no equivalent target. Harvest Protection comes with five free policies to start, with no trial clock and no purchase required, and is free to start for existing Aviatrix customers, with the first five policies and five nodes free with no license and no time limit. Aviatrix said its patented High-Performance Encryption engine removes the throughput trade-off that causes most enterprises to leave cloud transit unprotected, citing one Fortune 5 customer running 400 gigabits per second fully encrypted in production at line rate, and that key establishment on the control plane uses the ML-KEM standard today, with hybrid ML-KEM on the data plane a fast-follow release. The company is working with global systems integrators and security services providers and collaborating with Microsoft on the Quantum Safe program as the network traffic and Harvest Now, Decrypt Later containment solution. Aviatrix also cited deadlines including Executive Order 14412, which sets December 31, 2030, for post-quantum key establishment and December 31, 2031, for digital signatures on high-value assets, and said enterprises can begin with a free Containment Assessment that returns a provisional Blast Radius and harvest exposure read in about five minutes.

CUbIQ Technologies and Coherent Corp. announced a successful proof-of-concept quantum key distribution demonstrator that puts a CV-QKD transceiver in a standard QSFP-28 pluggable form factor running alongside Coherent 200G FR4 OSFP56 optics. The link was tested over an NVIDIA DGX Spark host system via its ConnectX-7 interface with no changes to the existing network, and the companies say the pluggable approach cuts power consumption, cost and footprint by a factor of 100 compared with conventional rack-based QKD systems. CUbIQ said the module derives keys from the quantum properties of the optical signal itself, so an interception attempt leaves a measurable fingerprint and compromised keys are detected and discarded before use. CUbIQ CEO Aaron Albores Mejia said the work with Coherent proves quantum-safe networking can be demonstrated on the AI infrastructure operators are already deploying. The demonstrator is being shown at ECOC 2026 in Málaga, Spain, from 21 to 23 September 2026 at Booth 1051 in the Dutch Pavilion, and the two companies said they are also working toward a next generation of secure, high-capacity optical pluggable transceivers.