Different group members have different signing ability in the scheme, and no one can sign a message out of his purview. Meanwhile, the scheme satisfies ordinary security properties of group signature.

该方案中，群成员具有不等的签名权限，任何群成员均不能对一个超出自己签名权限的消息产生有效的签名，验证者可以通过公开的消息权限标志来验证签名。

youdao

Some people suggest using random passwords for ordinary user accounts is good security policy.

一些人认为对于普通用户账户使用随机密码是良好的安全策略。

youdao

That would vastly improve the overall computer-security situation: Ordinary people would feel secure and law enforcement and security specialists could focus on the biggest threats.

这样会极大地提高电脑的整体安全状况：普通人会感到安全，法律的实施和安全专家能够更加专注于更大的危害。

youdao

Admiral Mullen says additional troops would be used to provide more security for ordinary Afghans, in the hope they would turn against the insurgents.

VOA: standard.2009.11.04

Military officials say the strategy behind the operation in Kandahar is to establish security so that ordinary Afghans can live their lives without fear of the Taliban.

VOA: standard.2010.05.26

Reporter Richard Watson said that, in general terms, it was not out of the ordinary for the security service to approach people for information or even to act as covert sources.

BBC: Woolwich attack: MI5 'offered job to suspect'

He travelled back to Nairobi along with his officials, while ordinary passengers were banned for security reasons.

BBC: Kenyan capital Nairobi gets new train

Perhaps, but the mutual security of an ordinary employment contract disappears.

BBC: Zero hours contracts for NHS staff explained