Anheng Information obtains patents related to anonymous query technology. Anonymous queries can prevent information leakage and reduce resource and communication overhead.

March 26 News: According to the State Intellectual Property Office, Hangzhou Anheng Information Technology Co., Ltd. has applied for a patent titled “Homomorphic Encryption-Based Privacy-Preserving Query Method, Device, and Computer Equipment,” with authorization announcement number CN116346310B, granted on March 24, 2026. The application publication number is CN116346310A, application number CN202310403585.0, published on March 24, 2026. The application was filed on April 10, 2023. Inventors are Hu Yifeng and Wu Zhuoqun. The patent agency is Hangzhou Huajin Lianzhe Intellectual Property Agency Co., Ltd., patent agent He Xiaochun. Classification codes include H04L9/00, H04L9/08, G06F16/2453, H04L9/40.

Patent Abstract: This application relates to a homomorphic encryption-based privacy-preserving query method, device, and computer equipment. The method includes: selecting at least two feature fields from the feature set on the server side to generate a query set, where one feature field is the target query feature; generating a public-private key pair based on a homomorphic encryption algorithm; encrypting the query set and generating a ciphertext vector using the public key; sending the public key, query set, and ciphertext vector to the server; receiving the server’s encrypted result, which is determined by the query set and ciphertext vector; decrypting the result with the private key to obtain the plaintext message corresponding to the target feature field. This method allows query and decryption to be performed without perceiving or leaking information, using a pair of public-private keys for all data, reducing resource consumption and communication overhead.

Anheng Information was established on May 15, 2007, and listed on the Shanghai Stock Exchange on November 5, 2019. Its registered and office location is in Hangzhou, Zhejiang Province. It is a leading enterprise in China’s cybersecurity field, with core business covering network security products and services, possessing strong technological barriers.

Main business includes R&D, manufacturing, and sales of network security products, as well as providing professional cybersecurity services. Its industry classification is “Computer - Software Development - General Software,” with concept sectors including integrated machine concepts, Huawei Kunpeng, and information security.

In 2025, Anheng’s revenue was 2.151 billion yuan, ranking second among three industry companies, below Kingsoft Office’s 5.929 billion yuan. The industry average was 2.843 billion yuan, with a median of 2.151 billion yuan. The main business composition includes network security services accounting for 37.96% (817 million yuan), security platform for 35.70% (768 million yuan), etc. Net profit was -58.0096 million yuan, ranking second in the industry, with Kingsoft Office leading at 1.822 billion yuan. The industry average net profit was 50.6 million yuan, and the median was -58 million yuan.

Recent patent applications by Hangzhou Anheng Information Technology Co., Ltd.:

Disclaimer: Market risks exist; please invest cautiously. This article is automatically published by an AI large model based on third-party databases and does not represent Sina Finance’s views. All information herein is for reference only and does not constitute personal investment advice. Please refer to official announcements for accuracy. For questions, contact biz@staff.sina.com.cn.