Ciphertext-policy attribute-based encryption with partially hidden access structure and its application to privacy-preserving electronic medical record system in cloud environment.
Lixian LiuJunzuo LaiRobert H. DengYingjiu LiPublished in: Secur. Commun. Networks (2016)
Keyphrases
- privacy preserving
- attribute based encryption
- access structure
- ciphertext
- multi attribute
- standard model
- range queries
- metric space
- encryption scheme
- secret sharing scheme
- secret key
- access methods
- temporal data
- privacy concerns
- utility function
- sensitive information
- public key
- compression scheme
- data model
- data sets
- structured data
- low cost
- data analysis
- feature selection