Table 1 Defines the used annotations
From: Ensuring user authentication and data integrity in multi-cloud environment
Annotation | Definition |
|---|---|
PU, PR | Public key, private key |
M, C | Original message, encrypted massage |
Ai,Aj (i,jϵ(1,n)) | User identity |
F() | Stands for encryption |
F′() | Stands for decryption |
Φ(n) | The totient of n |
PR(A) | A’s private key |
PU(A) | A’s public key |
PU(B) | B’s public key |
PR(B) | B’s private key |
p, q | Two different primes |