他透露，假冒是客户的重要因素有伪造公司下的订单。
He disclosed that counterfeiting is an important factor for customers to have the orders under fake companies.
真的，正品的非伪造的，非假冒的；
该文认为该方案是全局可伪造的，群管理员可以对任何消息假冒任何成员生成有效的群签名。
This paper shows that Chen - Zhu's scheme is universally forgeable, that is, the group authority can forge a valid group signature on an arbitrary message, which stands in any group member.
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