期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2015
卷号：3
期号：3
DOI：10.15680/ijircce.2015.0303089
出版社：S&S Publications
摘要：Modern healthcare sectors need to create an environment which reduces time consuming efforts andother costly operations to obtain a patient's complete medical record and uniformly integrates this heterogeneouscollection of medical data to deliver it to the healthcare authorities. Electronic health records (EHRs) have been widelyadopted to enable healthcare providers and patients to create, manage and access healthcare information from anyplace, and at any time. Cloud services provide the necessary infrastructure at lower cost and better quality. Cloudcomputing when used in Healthcare sector reduces the cost of storing, processing and updating with improvedefficiency and quality. But the security of data in the cloud is not satisfactory today. The electronic health recordconsists of images of the patient‟s record which is highly confidential. The EHRs in the healthcare includes the scanimages, DNA reports, X-rays etc., which are considered as the patients private data. Providing security for a hugevolume of data with high efficiency is required. This paper introduces a new mechanism in which the EHR images canbe secured efficiently and the private data are preserved for later use. Since most of the confidential data are in the formof images, additional care must be taken to secure these images. This is done by reducing the images into pixels andthen encrypting those pixels. After the encryption, the single encrypted file is divided into n files and they are stored inthe cloud. The original data is obtained by merging the n divided files from the cloud and then decrypting that mergedfile using the private key. This key is made visible only to the authorised persons as required by the hospital.
关键词：Cloud; Security; Healthcare Data; Encryption; Decryption; EHR
