Data confidentiality - prevent the cloud from seeing the plaintext data.
Access Privacy - prevent the cloud from inferring information about data from the queries made.
Data confidentiality research:
- The challenge is to allow query processing while keeping the data and query oblivious
- Researchers have mainly taken two approaches
- Encrypted database and encrypted query processing
- Trusted computing - keep the sensitive content in a trusted container
- Projects: TrustedDB, CipherBase
Access Privacy research:
- The challenge is to support minimal leakage of query access pattern while keeping the computational cost to reasonably low so that the approach is practical.
- There are two main paths that researchers have taken to solve this problem:
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