A kernel key is a software key that allows the kernel to create data protection classes, regardless of the number of hardware keys available.

内核键是一种软件键，它允许内核创建数据保护类，而无需考虑可用的硬件键的数目。

youdao

A new model for electronic software distribution and copyright protection based on an asymmetric public-key traitor tracing scheme is designed.

基于一种非对称公钥叛逆者追踪方案给出了新的电子软件销售和产权保护模型，适用于一类需要安装运行的软件。

youdao

This system is a kind of computer security protection software based on the USB key.

本文首先阐述了桌面保护系统的应用背景及重要实践意义；

youdao

Norton, which offers similar features with its own social media tracking software, believe this education aspect of online protection is key if parental measures are to be successfully implemented.

BBC: Child safety measures to protect against internet threats