a while ago an ad hoc group of computer scientists and cryptographers contributed to a paper that recommended a key of at least90bits for symmetric algorithms used in commercial security.
不久前,计算机科学家和密码学家专门小组发表了一篇论文,建议用于商业安全的对称算法至少要用90位的钥匙。
the authority should be set up under the auspices of the un or of an ad hoc group (the united states, canada, the european union and brazil, for example).
该临时机构应该在联合国或一个特别小组(如美国、加拿大、欧盟和巴西)的支持下建立。
the food handout in jiangyou, a small city 115km (70 miles) east of the epicentre, was being carried out by volunteers from an ad hoc group of private catering companies from another province.
江由是距离这次震中区域东部115km的一个小城市,志愿者们正在这里发放食品,这些食品都是由一家来自另一省份的私有/民营食品公司提供的。