Table 1 Acronyms used in this paper
From: Server-aided immediate and robust user revocation mechanism for SM9
Acronym | Description | Acronym | Description |
|---|---|---|---|
MPK | master public key | MSK | master secret key |
IDi | the i-th user’s identity | \(\phantom {\dot {i}\!}{\sf SK}_{{\sf ID}_{i}}\) | the i-th user’s secret key |
ctr | the time counter | SSKctr | the server secret key related to ctr |
\(\mathbb {L}\) | the user revocation list | m | message to be encrypted |
K | the derived symmetric key | \(\phantom {\dot {i}\!}{\sf CT}_{{\sf ID}_{i}}\) | ciphertext that sent to the i-th user |
\(\phantom {\dot {i}\!}{\sf CT}_{{\sf ID}_{i}, {\sf ctr}}\) | ciphertext that sent to i-th user related to ctr | \(\phantom {\dot {i}\!}{\sf TCT}_{{\sf ID}_{i}}\) | transformed ciphertext that sent to i-th user |