From: Identity-based remote data checking with a designated verifier
Symbols | Definitions |
---|---|
DO | Data Owner |
CSP | Cloud Service Provider |
RDPC | Remote Data Possession Checking |
DV | Designated Verifier |
PDP | Provable Data Possession |
PoR | Proof of Retrievability |
PKI | Public Key Infrastructure |
CA | Certificate Authority |
CDH | Computational Diffie-Hellman |
WDH | Weil Diffie-Hellman |
KGC | Key-Generation Center |
IBS | Identity-Based Signature |
\(\mathbb G, \mathbb G_{1}, \mathbb G_{2}\) | cyclic groups |
q | the order of \(\mathbb G_{1}\) and \(\mathbb G_{2}\) |
\(\mathbb Z_{q}\) | {0,1⋯,q−1} |
g | the generator of \(\mathbb G_{1}\) |
e | bilinear map from \(\mathbb G_{1}\times \mathbb G_{1}\) to \(\mathbb G_{2}\) |
H,H_{1},H_{2} | hash functions |
params | system parameter |
msk | master secret key |
trd | trapdoor of DV |
F | original data file |
Fid | filename of F |
n | number of blocks for F |
T | authenticated data file |
T_{Fid} | generated IBS |
chal | the challenge message |
Γ | the returned proof |