Efficient and Privacy-Preserving Categorization for Encrypted EMR

Electronic Health Records (EHRs) must be encrypted for patient privacy; however, an EHR is a challenge the administrator to categorize. In addition, EHRs are predictable and possible guessed, although they in encryption style. this work, we propose secure scheme support categorization of EHRs, according some keywords. regard predictability focused on guessing attacks from not only storage server but also group administrator. The experiment result shows that our efficient practical.