Department of Computer Science and Engineering

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Cryptographic Approach to Patient Records Privacy Protection in Emergency Situations
(2004-06) Kapis, Kosmas; Van Der Lubbe, Jan C.; Cartrysse, Kathy
This paper presents cryptographic mechanisms for securing electronic medical patient records, EPRs in emergency situations. The mechanism maintains the EPR confidentiality during an emergency when a patient is unconscious and located outside any health provider, HP. In such situations any authorized health care practitioner, HCP can access all relevant medical records when needed. However, after such an emergency, it is impossible for anyone to access the patient’s EPR without the patient’s consent. This can be achieved by using a modified forward-secure signature and encryption algorithm used in two directions. After an emergency treatment, the patient’s consent is restored.
Security Scheme for Electronic Patient’s Records Incorporating Full Privacy
(2010) Kapis, Kosmas; Van Der Lubbe, Jan C.; Cartrysse, Kathy; Gedrojc, Bartek
This paper presents an electronic patient record (EPR) security scheme that covers the privacy of patients and health care practitioners (HCPs). The scheme is designed such that it provides HCP’s privacy towards another HCP but revealable in disputes. Forward signature and encryption schemes are used to provide EPR integrity and confidentiality respectively. Furthermore, forward group signatures are used to provide privacy between HCPs.