The digital car key is available on smart devices now. People no longer have to bring the key fob to unlock and start the engine. The existing schemes have some problems, such as poor device compatibility and poor user experience. In this paper, we proposed an unperceived digital car key scheme based on Bluetooth Low Energy (BLE) SIM card. After owner paring, the vehicle automatically locks/unlocks when the terminal device with the BLE SIM card approaches/leaves it. The data of the digital car key is stored in the secure element of the Bluetooth SIM card. The digital credentials are exchanged and mutually authenticated through a Bluetooth connection between the vehicle and the BLE SIM card. Compared to the existing schemes, our scheme has better device compatibility and a better user experience.
At present, fingerprint authentication is one of the main authentication methods on terminals, but its security level is not enough. SIM-based authentication services have high security level and are being used more and more widely. However, SIM card authentication requires users to input PIN code, which affects user experience to some extent. In this paper, the fingerprint authentication technology, SIM card and SIM with fingerprint technologies are studied, and this paper proposes an authentication framework which combines SIM card and fingerprint authentication technology, this framework greatly enhance the user experience of SIM card authentication, at the same time it also increased the level of security for fingerprint authentication, which can be applied in all kinds of application scenarios with high level security requirements.
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