Cryptographic Treatment of CryptDB's Adjustable Join
In this document, we provide a cryptographic treatment of the adjustable join protocol from CryptDB. We also discuss how our scheme could be used outside of CryptDB because it provides a simple functionality that may be needed in other settings. Intuitively, it is a pseudorandom permutation where an...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Language: | en-US |
| Published: |
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/69859 |
| Summary: | In this document, we provide a cryptographic treatment of the adjustable join protocol from CryptDB. We also discuss how our scheme could be used outside of CryptDB because it provides a simple functionality that may be needed in other settings. Intuitively, it is a pseudorandom permutation where an external party not knowing the secret key can nonetheless adjust a ciphertext under one key to a ciphertext under a different key, given an adjustment token from a party that knows the secret key. |
|---|