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 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.
在此模式中，使用代理作为连接的esb之间的中介。
In this pattern a broker is employed to mediate between connected ESBs.
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