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一种大规模计算机安全网络的密钥管理规程——分群式密钥管理系统
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作者 杨列亮 聂涛 《华东交通大学学报》 1993年第1期17-24,共8页
任何一种用密钥控制的加密,都存在着密钥管理问题。在具有很强的密码算法的时候,保密系统的安全性主要取决于对密钥的管理。因此在计算机安全网中,设立一种好的密钥管理规程是至关重要的。本文讨论一种可能的密钥管理方式,可以支持大规... 任何一种用密钥控制的加密,都存在着密钥管理问题。在具有很强的密码算法的时候,保密系统的安全性主要取决于对密钥的管理。因此在计算机安全网中,设立一种好的密钥管理规程是至关重要的。本文讨论一种可能的密钥管理方式,可以支持大规模计算机安全网之间的通信。 展开更多
关键词 加密 解密 密钥管理 通信会期
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Architectural and Urban Communication in Social Identity: The Case Study of Agadir Morocco: From Colonial Preponderance to Renaissance Which Social Identity?
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作者 Amal Ben Attou 《Journal of Literature and Art Studies》 2017年第10期1383-1390,共8页
This paper proposes the architectural communication as a socio-spatial identification, and a channel for the politico-patrimonial dialogue in a determined territory which is in this case the south Moroccan city of Aga... This paper proposes the architectural communication as a socio-spatial identification, and a channel for the politico-patrimonial dialogue in a determined territory which is in this case the south Moroccan city of Agadir. By analyzing Agadir's urbanistic and architectural content thorough ages, we find ourselves involved in an enthralling and passionate debate concerning two important aspects. The first is the historical temporality of the city's architectural and urbanistic changes. In other words, it is the different architectural transformation related to the political transmutations that Agadir has witnessed since the Portugal settlement until the after earthquake of 1960. While the second is about the perception toward the architectural oeuvre deeply settled in the territory and the memory of the city's designers. This aspect is linked to the society's perception toward the architectural-urban transformations in their territory. In our paper, we are going to focus on two major architectural and urbanistic ages in the history of Agadir. The first period we are going to approach is the architectural and urbanistic features of Agadir during French settlement. The second period is Agadir's architectural renaissance after 1960s earthquakes. Since the core of our study is the architectural acts, it is definitely a matter of interpretation related to the philosophical, mental and ideological representation of the city's architecture and urbanism either by those who artistically invented Agadir during colonialism or those who reinvented Agadir after 1960s earthquakes. Do urbanism and architecture represent for Agadir, a power, a doctrine or a savoir-faire? Can we affirm that Agadir's architecture is truly reflecting the image of its society? Is this society in itself immersed sufficiently in its architecture? Several hypotheses are possible in this research. Nevertheless, the fact that in this paper we use communication as a vehicle to establish a dialogue between arts, politics and socio-ideologic and territorial governance makes us recognize the different bridging relationships between the architectural action, the political and urbanistic content represented in the architectural expression. It also helps us to discover and analyze the ideologies that lead the architects during their conception. Finally, is this architecture which normally must represent the society in tempo-spatial territory admitted by the local citizens? All these are lines of research we are going to shed light on in this paper. 展开更多
关键词 TERRITORY architecture URBANISM COMMUNICATION re-composition identity
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