China Mobile Internet's Patent Application: Secure Call Encryption Using Blockchain Technology

China Mobile Internet's Patent Application: Secure Call Encryption Using Blockchain TechnologyOn March 29, 2025, the State Intellectual Property Office of China revealed that China Mobile Internet Co., Ltd

China Mobile Internet's Patent Application: Secure Call Encryption Using Blockchain Technology

On March 29, 2025, the State Intellectual Property Office of China revealed that China Mobile Internet Co., Ltd. filed a patent application for a "Call Data Encryption Method and Related Device," with publication number CN119696771A and an application date of November 2024. This marks a significant advancement in China Mobile's commitment to enhancing communication security. The innovation lies in its ingenious combination of blockchain and encryption technologies to provide a higher level of protection for user call data.

The patent abstract indicates that this technology falls within the field of communication technology and aims to provide a novel call data encryption method and related equipment to mitigate the risks of data leakage and misuse, thus improving call data security. Its core function is to leverage blockchain technology to establish a secure and reliable data storage and transmission mechanism, ensuring the integrity and confidentiality of call data.

Specifically, the patented call data encryption method comprises the following steps:

First, in response to a call request initiated by a first device, the system encrypts the first private key generated by the first device using a pre-stored target public key, resulting in a first encrypted private key. This step ensures that the first private key cannot be stolen or tampered with during transmission.

Next, the system stores the first encrypted private key and its corresponding first public key in the blockchain. The decentralized and tamper-proof nature of blockchain technology offers robust security for the stored keys. This storage process generates a storage transaction message containing crucial encryption information and transaction records.

Then, this storage transaction message is sent to the second device corresponding to the call request. Upon receiving the storage transaction message, the second device can use the information within to store the second encrypted private key and second public key in the blockchain. The second encrypted private key is similarly obtained by encrypting the second device's second private key with the target public key, guaranteeing key security.

Finally, the call data encryption process begins. The system uses the second public key stored in the blockchain to encrypt the call data from the first device, producing the first encrypted data. Only the device possessing the corresponding private key can decrypt the data, ensuring call data confidentiality. The entire encryption process relies on the reliability and security of blockchain technology, effectively avoiding potential single points of failure and security vulnerabilities inherent in traditional encryption methods.

The innovation lies in integrating blockchain technology into the call data encryption process. Traditional encryption methods typically rely on centralized servers or organizations to manage keys, making them more vulnerable to attacks. The decentralized nature of blockchain effectively eliminates single points of failure, enhancing system fault tolerance and security. Furthermore, blockchain's immutability ensures the integrity of keys and encrypted data, preventing malicious tampering or forgery.

This method effectively reduces the risk of call data leakage and misuse, enhancing call data security. This is crucial for protecting user privacy and maintaining information security. In today's increasingly security-conscious environment, this technology holds significant potential.

This patent application also highlights China Mobile Internet's technological innovation capabilities. Established in 2015 and based in Guangzhou, China Mobile Internet Co., Ltd. is a company primarily engaged in internet and related services. According to Tianyancha data, the company has a registered capital and paid-in capital of RMB 300,000 million. Furthermore, the company actively participates in market competition, with investments in one company, participation in 2699 bidding projects, 236 trademarks, 748 patents, and 8 administrative licenses. This data demonstrates China Mobile Internet's strong capabilities and innovative capacity within the communication technology sector.

China Mobile Internet's patent application for the "Call Data Encryption Method and Related Device" is not only an improvement on existing call encryption technologies but also a positive exploration of the future direction of communication security technology. It reflects the company's high regard for user data security and provides new technical approaches and solutions for the entire communication industry. The successful application of this technology will further drive the communication industry towards a more secure and reliable direction, providing users with safer and more convenient communication services. Future applications are expected to encompass various communication scenarios, including mobile calls, video conferences, and VoIP.

With the rapid development of 5G, AI, and other new technologies, information security issues are becoming increasingly prominent. China Mobile Internet's patented technology provides effective technical means to address this issue and serves as a reference for other communication companies. It is expected that this technology will be widely applied in the near future, creating a more secure and reliable communication environment for users and contributing to a safer digital society.

The success of this patent application also underscores China's continuous innovation and development in the field of communication technology. We can anticipate further breakthroughs in communication security from China, contributing Chinese wisdom and solutions to global communication security. China Mobile Internet's efforts set an example for improving China's communication security level and contribute to the development of global communication security.

In summary, China Mobile Internet Co., Ltd.'s patent application for the "Call Data Encryption Method and Related Device" represents a significant leap forward in communication security technology. This technology, through the clever combination of blockchain and encryption technologies, effectively enhances call data security, providing strong protection for user privacy and data security. Its innovative and practical nature warrants industry attention and study. With further technological maturity and application, this technology is bound to have a profound impact on the communication security field.