Table 1 Acronyms used in this paper
From: Rainbow: reliable personally identifiable information retrieval across multi-cloud
Acronym | Description | Acronym | Description |
|---|---|---|---|
TA | Trusted authority | CSP | cloud service provider |
PO | PII owner | PU | PII user |
MCS | Master cloud server | HCS | helping cloud server |
\(\texttt{pk}\) | Public key | \(\texttt{msk}\) | master secret key |
\(\texttt{cpk}\) | Cloud-side public key | \({\texttt{csk}}_{i}\) | the ith cloud-side secret key |
\(\texttt{upk}\) | User public key | \(\texttt{usk}\) | user secret key |
\(\texttt{dk}\) | Delegated key | \({\mathcal{L}}\) | delegated key list |
\({\texttt{ds}}_{j,i}\) | The decryption share generated by the jth server for the ith server | \({\pi }_{j,i}\) | the proof of \(\texttt{ds}_{j,i}\) |
\(\texttt{ct}\) | Ciphertext | \(\texttt{dct}\) | partially decrypted ciphertext |
\(\texttt{csv}\) | Combined secret value | Â | Â |