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发明公开
CN103366110A 通过外接设备给电子装置加密解密的系统、电子装置及外接设备 无效 - 撤回

通过外接设备给电子装置加密解密的系统、电子装置及外接设备
摘要：
本发明提供一通过外接设备给电子装置加密解密的系统、电子装置、及外接设备，电子装置将用户设置好的密码写到外接设备里及将密码保存到嵌入式处理器的ROM中，只有电子装置连接有外接设备，与外接设备实现全双工通信，电子装置检查外接设备里的密码并确认密码正确后方可实现开机、唤醒、和解锁等与密码有关的功能，电子装置系统本身是无法直接访问到设置的密码的，从而用户不必去记开机密码，增强了密码的安全性，同时，确保了电子装置中信息的安全。
摘要（英）：

The invention provides a system for encrypting and decrypting an electronic device through an external device, the electronic device and the external device. The electronic device writes a password set by a user in the external device and saves the password in an ROM (read only memory) of an embedded processor, only the electronic device is connected with the external device and achieves full-duplex communication with the external device, functions related to the password, such as booting up, waking up and unlocking, can be achieved only after the electronic device checks the password in the external device and confirms that the password is correct, and the system of the electronic device personally cannot directly access the set password. Therefore, the user does not need to memorize the power-on password, and the safety of the password is enhanced; meanwhile, the safety of the information in the electronic device is guaranteed.

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