The system might use a smart identity card, or a digital credential linked to a specific computer and would authenticate users at a range of online services.
该系统可能使用智能身份证或连接到特定计算机的数字证书，并在一系列在线服务中认证用户。
The digital credential would be a "voluntary trusted identity" system that would be the high-tech equivalentof a physical key, a fingerprint and a photo ID card.
该数字证书可以成为一个“自愿受信身份”系统，从而成为物理密钥、指纹以及身份证的高科技等价物。
The model not only realizes key management, encrypted communication, digital signature and identity authentication, but also is fit for network system with real time and large data transfer.
本模型不仅适用于实时的、大数据传输的网络系统，而且实现了密钥管理、加密管理、数字签名以及身份认证等功能。
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