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3rd International Conference on Information Technologies in Management

Warsaw, Poland, 26 January 2018

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Wersja polska

Secure data collection in Virtual Organizations

Tomasz Klasa



Monitoring information system of a virtual organization should, despite frequent changes in its organization and operation, allow analysis in a given period of time (i.e. during past year). This requires gathering huge amount of data from multiple, often geographically distributed locations. Because the subject of monitoring forms a set of sensitive data (information system components’ state of security reports), it is important to provide confidentiality and integrity of communication and all sets of such data. Only if the source of acquired data (e.g. agent) is trusted and the data itself reach repository in untouched form, with no third-party influence, data can be trusted and saved.

A common way to provide confidentiality and integrity (including protection against denial of origin) is application of asymmetric cryptography of PKI in the form of digital signature and encryption. Unfortunately, the downside of PKI is long path of signature verification, troublesome especially in the case of sending numerous reports of small size, e.g. through mobile connections. One of possible alternative approaches is to rely on certificateless cryptography CL-PKC by Al-Riyami and Patterson, as it gets rid of multilayer certificate verification path. A simple identity verification protocol by Pejaś and Klasa was designed to solve a similar problem, assuming that a reasonable man is on one side of verification and the other side is any kind of service and communication scheme. The protocol, however, did not include any kind of role verification, which means that it is not possible to say, whether adversary is authorized to receive certain sort of data. To solve this problem, the original protocol was adapted. It still provides sufficient security and simple verification of each message, but was supplemented with additional verification of adversary role in the system. Security of the model was verified formally.


Information security, virtual organizations, security monitoring

Full text


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