An Efficient Data Shharing Attribute Based Encryryption and Time Access Conntrol Scheme in Cloud Compuputing

Abstract

The personal health h information managed by the third party cloouud servers is shared across distributed health ccare providers for medical consultation which couuld possibly be leaked and misused. The secrececy and time efficiency present in cloud is of aa questionable state in current scenario, evenen when it’s customized by providing faceleess user Id. Personal health records are sensitivi ve information which the user might not wish  t to dismiss to anyone unless they are trustworthy.y. The problem possesses a serious stage that these e insecure data records could be used in illegal insusurance claims and organ trade. In addition to hannddling all these issues, there is a need to deal wiw tith sharing of medical records as well in emergenency situations for personal consulting. Cipher te xext-policy with Attribute Based Encryption (ABE) aauthentication scheme with time based Authoriz ezed Accessi