J Med Syst - A security and privacy preserving e-prescription system based on smart cards.

Tópicos

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Resumo

In 2002, Ateniese and Medeiros proposed an e-prescription system, in which the patient can store e-prescription and related information using smart card. Latter, Yang et al. proposed a novel smart-card based e-prescription system based on Ateniese and Medeiros's system in 2004. Yang et al. considered the privacy issues of prescription data and adopted the concept of a group signature to provide patient's privacy protection. To make the e-prescription system more realistic, they further applied a proxy signature to allow a patient to delegate his signing capability to other people. This paper proposed a novel security and privacy preserving e-prescription system model based on smart cards. A new role, chemist, is included in the system model for settling the medicine dispute. We further presented a concrete identity-based (ID-based) group signature scheme and an ID-based proxy signature scheme to realize the proposed model. Main property of an ID-based system is that public key is simple user's identity and can be verified without extra public key certificates. Our ID-based group signature scheme can allow doctors to sign e-prescription anonymously. In a case of a medical dispute, identities of the doctors can be identified. The proposed ID-based proxy signature scheme can improve signing delegation and allows a delegation chain. The proposed e-prescription system based on our proposed two cryptographic schemes is more practical and efficient than Yang et al.'s system in terms of security, communication overheads, computational costs, practical considerations.

Resumo Limpo

atenies medeiro propos eprescript system patient can store eprescript relat inform use smart card latter yang et al propos novel smartcard base eprescript system base atenies medeiross system yang et al consid privaci issu prescript data adopt concept group signatur provid patient privaci protect make eprescript system realist appli proxi signatur allow patient deleg sign capabl peopl paper propos novel secur privaci preserv eprescript system model base smart card new role chemist includ system model settl medicin disput present concret identitybas idbas group signatur scheme idbas proxi signatur scheme realiz propos model main properti idbas system public key simpl user ident can verifi without extra public key certif idbas group signatur scheme can allow doctor sign eprescript anonym case medic disput ident doctor can identifi propos idbas proxi signatur scheme can improv sign deleg allow deleg chain propos eprescript system base propos two cryptograph scheme practic effici yang et al system term secur communic overhead comput cost practic consider

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