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.

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。

youdao

Creates and defines the role, responsibilities, and authority of this new process group.

创建并定义该新的过程组的角色、职责，和权力。

youdao

This has worked so well that the president of the group has established considerable authority, enough to enable him to broker unrelated agreements among squabbling tribesmen.

该团体运行良好，以至其机构负责人树立了相当的权威，足以为那些争执中的人群代理达成与己无关的协议。

youdao

The group says the quality of medical care will drop if nurse practitioners are given more authority.

VOA: standard.2010.05.14

"They don't quite trust the Israeli political system or the police or all the structures of authority and so a very tiny group has declared a war on the entire Israeli mainstream,".

VOA: standard.2009.11.14

The local authority group says that councils are still uncertain about whether there will be further reviews of decisions about building projects.

BBC: ?260m 'wasted' in axing school building plans

Faced with the growing power and influence of Hamas, the main militant group, the Palestinian Authority's only hope of remaining relevant is successful negotiation with the Israelis.

ECONOMIST: Unsettling the settlers | The

Almost 6, 000 have signed a Stop the Rail Freight Exchange (STRiFE) group petition, asking the authority to keep Radlett Airfield in Park Street from developers HelioSlough.

BBC: Thousands sign St Albans rail freight terminal petition