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Maithilee Joshi

MS Computer Science, May 2018

Maithilee Joshi worked on the Oblivious Cloud – Secure Cloud Storage and Access project.

She successfully defended her Master’s thesis in May 2018.

Thesis Title: Attribute-Based Schemes for Secure Access To Cloud-based EHR Systems
Thesis Abstract: Medical organizations find it challenging to adopt cloud-based electronic medical records services, due to the risk of data breaches and the resulting compromise of patient data. Existing authorization models follow a patient-centric approach for EHR management where the responsibility of authorizing data access is handled at the patients’ end. This, however, creates a significant overhead for the patient who has to authorize every access of their health record. This is not practical given the multiple personnel involved in providing care and that at times the patient may not be in a state to provide this authorization. Hence there is a need of developing a proper authorization delegation mechanism for safe, secure and easy cloud-based EHR management.
This thesis presents a novel, centralized, attribute-based authorization mechanism that uses Attribute-Based Encryption (ABE) and allows for delegated secure access of patient records. This mechanism transfers the service management overhead from the patient to the medical organization and allows easy delegation of cloud-based EHR’s access authority to the care providers.

She is currently working at Amazon.