J. Med. Internet Res. - A data encryption solution for mobile health apps in cooperation environments.

Tópicos

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Resumo

CKGROUND: Mobile Health (mHealth) proposes health care delivering anytime and anywhere. It aims to answer several emerging problems in health services, including the increasing number of chronic diseases, high costs on national health services, and the need to provide direct access to health services, regardless of time and place. mHealth systems include the use of mobile devices and apps that interact with patients and caretakers. However, mobile devices present several constraints, such as processor, energy, and storage resource limitations. The constant mobility and often-required Internet connectivity also exposes and compromises the privacy and confidentiality of health information.OBJECTIVE: This paper presents a proposal, construction, performance evaluation, and validation of a data encryption solution for mobile health apps (DE4MHA), considering a novel and early-proposed cooperation strategy. The goal was to present a robust solution based on encryption algorithms that guarantee the best confidentiality, integrity, and authenticity of users health information. In this paper, we presented, explained, evaluated the performance, and discussed the cooperation mechanisms and the proposed encryption solution for mHealth apps.METHODS: First, we designed and deployed the DE4MHA. Then two studies were performed: (1) study and comparison of symmetric and asymmetric encryption/decryption algorithms in an mHealth app under a cooperation environment, and (2) performance evaluation of the DE4MHA. Its performance was evaluated through a prototype using an mHealth app for obesity prevention and cares, called SapoFit. We then conducted an evaluation study of the mHealth app with cooperation mechanisms and the DE4MHA using real users and a real cooperation scenario. In 5 days, 5 different groups of 7 students selected randomly agreed to use and experiment the SapoFit app using the 7 devices available for trials.RESULTS: There were 35 users of SapoFit that participated in this study. The performance evaluation of the app was done using 7 real mobile devices in 5 different days. The results showed that confidentiality and protection of the users' health information was guaranteed and SapoFit users were able to use the mHealth app with satisfactory quality. Results also showed that the app with the DE4MHA presented nearly the same results as the app without the DE4MHA. The performance evaluation results considered the probability that a request was successfully answered as a function of the number of uncooperative nodes in the network. The service delivery probability decreased with the increase of uncooperative mobile nodes. Using DE4MHA, it was observed that performance presented a slightly worse result. The service average was also slightly worse but practically insignificantly different than with DE4MHA, being considered negligible.CONCLUSIONS: This paper proposed a data encryption solution for mobile health apps, called DE4MHA. The data encryption algorithm DE4MHA with cooperation mechanisms in mobile health allow users to safely obtain health information with the data being carried securely. These security mechanisms did not deteriorate the overall network performance and the app, maintaining similar performance levels as without the encryption. More importantly, it offers a robust and reliable increase of privacy, confidentiality, integrity, and authenticity of their health information. Although it was experimented on a specific mHealth app, SapoFit, both DE4MHA and the cooperation strategy can be deployed in other mHealth apps.

Resumo Limpo

ckground mobil health mhealth propos health care deliv anytim anywher aim answer sever emerg problem health servic includ increas number chronic diseas high cost nation health servic need provid direct access health servic regardless time place mhealth system includ use mobil devic app interact patient caretak howev mobil devic present sever constraint processor energi storag resourc limit constant mobil oftenrequir internet connect also expos compromis privaci confidenti health informationobject paper present propos construct perform evalu valid data encrypt solut mobil health app demha consid novel earlypropos cooper strategi goal present robust solut base encrypt algorithm guarante best confidenti integr authent user health inform paper present explain evalu perform discuss cooper mechan propos encrypt solut mhealth appsmethod first design deploy demha two studi perform studi comparison symmetr asymmetr encryptiondecrypt algorithm mhealth app cooper environ perform evalu demha perform evalu prototyp use mhealth app obes prevent care call sapofit conduct evalu studi mhealth app cooper mechan demha use real user real cooper scenario day differ group student select random agre use experi sapofit app use devic avail trialsresult user sapofit particip studi perform evalu app done use real mobil devic differ day result show confidenti protect user health inform guarante sapofit user abl use mhealth app satisfactori qualiti result also show app demha present near result app without demha perform evalu result consid probabl request success answer function number uncoop node network servic deliveri probabl decreas increas uncoop mobil node use demha observ perform present slight wors result servic averag also slight wors practic insignific differ demha consid negligibleconclus paper propos data encrypt solut mobil health app call demha data encrypt algorithm demha cooper mechan mobil health allow user safe obtain health inform data carri secur secur mechan deterior overal network perform app maintain similar perform level without encrypt import offer robust reliabl increas privaci confidenti integr authent health inform although experi specif mhealth app sapofit demha cooper strategi can deploy mhealth app

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