Quantum-Resistant Dataset Comparison Using Mixing and Hashing
Summary
USPTO published patent application US20260111610A1 on April 23, 2026, filed by inventor Bruno Sangle-Ferriere (application no. 18927656, filed October 25, 2024). The application describes a cryptographic method for comparing datasets using mixing and hashing techniques that is resistant to attacks by quantum computers. The method enables verification of whether two datasets are identical without requiring both datasets to be present simultaneously in the same apparatus.
“A method, performed in an environment where data transmission is vulnerable to quantum computers, for comparing a first dataset and a second dataset, in particular with a view for determining whether these two datasets are identical.”
About this source
USPTO classification H04L covers transmission of digital information: network protocols, modulation schemes, wireless signal processing, coding, encryption in transit, and multiplexing. With 5G, 6G, and satellite internet driving new filings, H04L is one of the largest active patent classes. Every newly published application in H04L lands in this feed, around 215 a month. Applications publish 18 months after filing, so this feed reveals what MediaTek, Qualcomm, Ericsson, Samsung, Huawei, and dozens of smaller companies were working on in the prior year and a half. Watch this if you compete in networking hardware, advise telecoms on IP strategy, or scout acquisition targets in wireless infrastructure.
What changed
USPTO published patent application US20260111610A1 titled 'Quantum-Resistant Dataset Comparison Using Mixing and Hashing' on April 23, 2026. The application discloses a method for comparing datasets using mixing and hashing that protects against quantum computer attacks. The method involves mixing a mixer number with a first dataset using a mixing function, hashing the mixed data with a hash function where the mixer number length exceeds the hash length, and comparing the resulting hash with a third dataset representing the hash of the second dataset mixed with the same parameters.
Affected parties include organizations developing cryptographic systems, secure data comparison tools, or systems requiring protection against quantum computing threats. The patent has CPC classifications in H04L 9/0643 and H04L 9/3239, indicating relevance to cryptographic communications and digital signature schemes. Companies in secure computing, cryptography, or quantum-resistant security should monitor this application for competitive landscape and potential licensing considerations.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
CRYPTOGRAPHIC METHOD FOR VERIFYING DATA
Application US20260111610A1 Kind: A1 Apr 23, 2026
Inventors
Bruno Sangle-Ferriere
Abstract
A method, performed in an environment where data transmission is vulnerable to quantum computers, for comparing a first dataset and a second dataset, in particular with a view for determining whether these two datasets are identical. The method not requiring the presence of these two datasets in the apparatus, and including the following steps of: a) mixing a number, called the mixer number, with the first dataset, using a mixing function, in order to obtain mixed data, b) hashing the mixed data using a hash function, wherein the a length of the mixer number is longer than a length of the hash and c) comparing the hash thus obtained in step b) with a third dataset assumed to be the hash of the second dataset mixed with the same mixer number as that used in step a) and with the same mixing function.
CPC Classifications
G06F 21/64 H04L 9/0643 H04L 9/3239
Filing Date
2024-10-25
Application No.
18927656
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