Cybersecurity

Differential Loop PUF Circuit for Cryptographic Key Generation

The USPTO published patent application US20260100828A1 for a Differential Loop Physically Unclonable Function (PUF) circuit designed for cryptographic key generation. The invention by Sylvain Guilley and Florent Lozac'h includes two parallel loops with delay elements forming free-running oscillators, where applied challenges to each loop generate oscillation counts compared by a subtractor to produce cryptographic keys based on reliability conditions.

Dynamic Smart Contract Security and Verification System Using Capsule Networks, Autoencoders, and GANs

The USPTO published patent application US20260100856A1, filed July 17, 2025, covering a dynamic smart contract security and verification system using capsule networks, autoencoders, and generative adversarial networks (GANs). The system includes an autoencoder for preprocessing smart contract code, a capsule network for analyzing hierarchical code relationships and dependencies, and a GAN for generating routing coefficients to enhance analysis efficiency. The system continuously monitors smart contracts for anomalies during execution on a blockchain platform.

Dynamic UI Authentication Using Cryptographic Techniques

USPTO published patent application US20260099579A1 filed by Philip D. Mooney on November 26, 2025. The application covers systems and methods for dynamic user interfaces for authentication using random placement and cryptographic techniques. The interface generates a plurality of UI elements with random attribute values according to cryptographic parameters.

Biometric Verification for Message Sender Privacy Shield

Biometric Verification for Message Sender Privacy Shield

Wells Fargo Bank Patent on Blockchain Universal Resolver

Wells Fargo Bank, N.A. has filed patent application US20260100855A1 for a blockchain universal resolver system that generates universal unique identifiers for users across multiple blockchain registries. The system receives provider institution identifiers and user identifiers from two separate blockchain registries and determines a universal unique identifier recorded on a third distributed ledger.

Blockchain Read Receipt System Using Cryptographic Verification

USPTO published patent application US20260100844A1 for a blockchain-based read receipt system. The invention by Liuxuan Pan and Adina Wineman describes a computer-implemented method for requesting cryptographic read receipts for messages using blockchain transactions locked by cryptographic puzzles. The application was filed on September 4, 2023 under Application No. 19115136 and assigned CPC classifications in H04L cryptography categories.

Encrypted Certificates for EV Charging Authentication

USPTO published patent application US20260100852A1 on April 9, 2026 (filed September 19, 2025) covering encrypted certificate systems for electric vehicle charging authentication. The invention describes generating encryption/decryption key pairs and encrypted certificates containing test results for vehicle charging components. A charging component detects a connection, identifies a charging partner request, and transmits encrypted certificates with decryption keys to authenticate the charging session.

Rapidly Verifiable Aggregate Signatures in Cryptographic Systems

USPTO published patent application US20260100848A1 assigned to École Polytechnique Fédérale de Lausanne (EPFL) covering cryptographic methods for aggregating digital signatures. The method involves receiving data packages from signers, verifying payload signatures, bundling correctly signed payloads into batches, generating batch digests with proofs of inclusion, and aggregating batch digest signatures. The filing date is August 28, 2023.

Apache Airflow Critical Flaws, CVSS 9.1, Security Bypass

Apache Airflow Critical Flaws, CVSS 9.1, Security Bypass

OPNsense Firewall Vulnerability Allows Remote Information Disclosure (CVSS 8.2)

CERT-Bund has issued a security advisory (WID-SEC-2026-1044) regarding a vulnerability in OPNsense, an open-source firewall distribution based on FreeBSD. The vulnerability, with a CVSS Base Score of 8.2 (high), allows remote, anonymous attackers to disclose sensitive information. Affected versions include OPNsense prior to version 26.1.6. A mitigation measure is available as of April 10, 2026.