The document proposes a cloud-assisted mobile health system that allows patients to securely store and search health records in the cloud while preserving privacy. It discusses existing privacy issues with electronic health systems and proposes a system using private cloud services, searchable symmetric encryption, identity-based encryption and attribute-based encryption to ensure data confidentiality, anonymity, unlinkability, and auditability of data access. The system is designed to store encrypted health records on the cloud and allow authorized users like doctors to securely search and access records when needed, including in emergency situations.