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arXiv 1004.0772cs.CRcs.NI
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开放对等网络中的安全属性

Security properties in an open peer-to-peer network

Jean-Francois Lalande, David Rodriguez, Christian Toinard

摘要:

本文提出了解决新的需求的机密性,完整性和可用性属性适合对等域的资源。在一个开放的对等网络中的安全属性的实施仍然是一个开放的问题,因为文献主要提出了资源的可用性和用户的匿名性的贡献。该论文提出了一种新的架构,简化了对等网络的管理。它认为安全的点对点客户端网络是一个社区客户端软件,由所有参与者共享,以应对与不同安全要求相关的各种资源的共享。然而,我们的建议处理可能的恶意同行,试图妥协所要求的安全属性。尽管开放式对等网络的安全性无法得到正式保证,但由于最终用户对目标主机具有特权,因此我们的解决方案提供了几种高级安全实施。首先,它允许正式定义各种共享资源的所请求的安全属性。其次,它通过发送挑战来评估请求对等体的信任和声誉,这些挑战测试其对等安全策略的公平性。此外,它还提出了一种先进的强制访问控制,通过将所请求的属性自动投影到SELinux策略上来强制执行所需的对等安全属性。因此,请求对等体的SELinux系统相对于所需的对等安全属性被自动配置。

英文摘要:

This paper proposes to address new requirements of confidentiality, integrity and availability properties fitting to peer-to-peer domains of resources. The enforcement of security properties in an open peer-topeer network remains an open problem as the literature have mainly proposed contribution on availability of resources and anonymity of users. That paper proposes a novel architecture that eases the administration of a peer-to-peer network. It considers a network of safe peer-to-peer clients in the sense that it is a commune client software that is shared by all the participants to cope with the sharing of various resources associated with different security requirements. However, our proposal deals with possible malicious peers that attempt to compromise the requested security properties. Despite the safety of an open peer-to-peer network cannot be formally guaranteed, since a end user has privileges on the target host, our solution provides several advanced security enforcement. First, it enables to formally define the requested security properties of the various shared resources. Second, it evaluates the trust and the reputation of the requesting peer by sending challenges that test the fairness of its peer-to-peer security policy. Moreover, it proposes an advanced Mandatory Access Control that enforces the required peer-to-peer security properties through an automatic projection of the requested properties onto SELinux policies. Thus, the SELinux system of the requesting peer is automatically configured with respect to the required peer-to-peer security properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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