The rise of Web3 brings two core challenges for users: the complexity of managing private keys—often discouraging participation due to fears of loss or theft—and the inefficiency of repetitive cross-platform identity verification. Addressing these issues, Conflux, China’s first compliant public blockchain project, has introduced the BSIM card as a practical solution.
According to Jiang Xiaohui, Deputy General Manager of the R&D Center at Dongxing Peace Technology, the BSIM is an innovative on-chain SIM card. By embedding an encrypted wallet directly into the SIM through chip-level integration, it combines mobile communication with digital asset management. This dual functionality helps build a bridge between the centralized Web2 and the decentralized Web3 ecosystems.
Hardware and Software Enhancements
Jiang Xiaohui emphasized that the BSIM ensures private keys never leave the card. All processes—key generation, storage, and transaction signing—occur within the SIM’s secure environment, significantly reducing the risk of hacking or theft.
Conflux supports dual-algorithm signatures, making it compatible with major blockchains like Bitcoin, Ethereum, and Conflux Tree-Graph. Users can perform cross-chain operations seamlessly without needing to switch devices.
For Android users, Conflux offers native system integration. iOS users can interact via a Bluetooth connection without needing to jailbreak their devices, making the technology widely accessible with existing smartphones.
Unified Identity Across Platforms and Institutions
One of the core strengths of the BSIM is its ability to act as a universal identity module. By mapping real-world identity onto the blockchain, it enables a seamless and trustworthy authentication system across various platforms and organizations. This reduces the administrative burden and cost associated with traditional verification methods.
Other notable applications include:
- Stablecoin Management and Payments: Users can securely manage and conduct transactions with stablecoins directly from their mobile devices.
- Real-World Asset Tokenization: Physical assets such as cultural artifacts, real estate, and artworks can be represented and traded on the blockchain.
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Financial Inclusion Through Blockchain Wallets
The BSIM card also functions as a micro blockchain wallet, merging communication and financial services. This is especially impactful for unbanked populations, offering them access to digital payment tools without requiring a traditional bank account.
A major long-term goal for the technology is facilitating cross-border trade. The BSIM can support on-chain settlement for various use cases including tourism, e-commerce, labor export, and trade activities under initiatives like the Belt and Road.
Frequently Asked Questions
What is a BSIM card?
A BSIM card is a hybrid SIM that integrates blockchain wallet functionality with standard mobile communication. It stores cryptographic keys securely and supports a range of digital asset operations.
How does the BSIM enhance security?
It ensures that private keys are generated, stored, and used for signing within the card’s secure chip. This design prevents key exposure to external systems or potential hackers.
Can BSIM be used with any mobile phone?
Yes. It is natively supported on Android, while iPhone users can access its features via Bluetooth without modifying their device’s operating system.
What kinds of blockchain does BSIM support?
It is compatible with several major networks, including Bitcoin, Ethereum, and Conflux, allowing users to manage assets across different chains.
Who can benefit from using a BSIM card?
Besides regular crypto users, it is particularly useful for individuals without bank accounts and businesses involved in international trade seeking efficient settlement options.
Is special software required to use BSIM?
While some platforms may require companion applications, the card is designed to work with standard mobile communication frameworks and widely-used blockchain protocols.