Analysis of the Latest Technology and Development of the Conflux BSIM Card (a Quantum-Secure and Blockchain-Integrated SIM Card)
I. Core Technical Background of the BSIM Card
The BSIM (Blockchain SIM) card is an innovative blockchain product jointly developed by the China Telecom Research Institute and the Shanghai Tree-Graph Blockchain Research Institute, and was first unveiled in Shanghai on May 16, 2023.
Although the card looks identical to an ordinary SIM card, its storage capacity is 10 to 20 times larger and its computing power is dozens of times greater.
“Private keys are generated inside the chip, signatures are made inside the chip, and private keys never leave the card” is the core design of the BSIM card—through hardware security protection technology, the user’s public and private keys are generated and stored inside the card, and digital signatures are performed while keeping the private keys inside the card, significantly reducing the risk of attacks by mobile Trojans, viruses, and other malware.
II. Integration of Quantum-Security Technology
“Quantum-secure chips” and “quantum keys” are important security upgrades for the BSIM card. Technological development has introduced quantum encryption technology: Companies such as Eastcompeace have integrated quantum encryption technology with BSIM cards, extending the time required to crack the keys to more than 100 million years and enabling them to withstand quantum-computing threats.
This end-to-end encryption capability of “one conversation, one key” greatly enhances the level of communications security.
III. Application Scenarios and Deployment Progress
At the time of the 2023 launch, Li Anmin, deputy dean of the China Telecom Research Institute, stated that BSIM cards would be promoted for deployment in Hunan, Hong Kong, and other regions, with applications developed for scenarios including metaverse digital assets, digital identity authentication, and data collection from Internet of Things devices.
Application Scenario
Specific Description
Digital identity authentication
Digital identities can be linked to real identities through real-name verification of mobile phone numbers, providing compliant real-name verification for Web3.0/blockchain accounts
Digital asset management
An integrated crypto wallet securely stores digital assets while balancing real-name requirements and privacy protection
Cross-border payments and stablecoins
Supports Hong Kong dollar stablecoin storage and real-time settlement; SIM card wallets have already been piloted with Postal Savings Bank of China and Bank of Communications in six cities
IoT terminals
Provides digital identity authentication and security management for drones and IoT devices
In Hong Kong, BSIM cards have passed compliance certification under the Stablecoins Ordinance, becoming the hardware carrier for the offshore renminbi stablecoin AXCNH.
IV. Significance as an Industry Model
The “first large-scale deployment case in the insurance brokerage sector” is of major significance. As a hardware security gateway to Web3.0, the BSIM card can provide industries with strong trust requirements, such as insurance brokerage, with an integrated solution for trusted data transfer, identity authentication, and privacy protection, meeting the full-process closed-loop requirements of a digital trust system: “trusted identity, trusted rules, trusted processes, and trusted outcomes.”
V. In Conclusion
This “digital card,” which integrates blockchain-based BSIM technology with a quantum-secure chip, is an in-depth evolution of the BSIM technology roadmap.
Its core advantages include:
Hardware-level security
Private keys never leave the card + quantum encryption, providing a dual hardware-security foundation
Balancing compliance and privacy
Achieves regulatory compliance through real-name verification of mobile phone numbers while protecting user privacy
Fully compatible and easy to promote
No need to replace the phone; applications can be handled through one-stop service at a China Telecom business outlet
The deployment by Hunan Telecom marks a crucial step in the transition of BSIM technology from prototype validation to large-scale commercial application.
Sources: official media and online news. The content is for reference, study, and exchange purposes only. Please strictly comply with the laws and regulations of your jurisdiction. This article does not constitute investment advice.
