Advances, Systems and Applications
Table 1 Notations in this paper
Symbol | Description |
|---|---|
\(\lambda\) | safe parameter |
PK | system public key |
MK | system master key |
SK | user private key |
W | keyword |
ck | symmetric key |
S | user attribute set |
U | system attribute set |
CT | key ciphertext |
\(CT_{1}\) | proxy encrypted ciphertext |
\(CT_{2}\) | proxy decrypted ciphertext |
\({SK}'\) | intermediate key |
P | access policy |
\(\Omega _{i}\) | hiding access policy |
FID | file identification |
HD | file storage address |
\(I_{w}\) | keyword index |
\(T_{w}\) | keyword trapdoor |
E(M) | encrypted file |