e-Health requires the sharing of patient related data when and where necessary. Electronic health records promise to improve communication between health care providers, thus leading to better quality of patients' treatment and reduced costs. As highly sensitive patient information provides a promising goal (e.g., for attackers), there is an increasing social and political pressure to guarantee patients privacy. This paper presents the new system PIPE (Pseudonymization of Information for Privacy in e-Health), that differs from existing approaches in its ability to securely integrate primary and secondary usage of health data.
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