Table 2 Symbols.
From: Quantum key-based medical privacy protection and sharing scheme on blockchain
Symbols | Meaning |
|---|---|
\({H_1}\), \({H_2}\), \({H_3}\) | Safe hash function |
\({T_n}(x)\) | Chebyshev mapping \(n \in [2, + \infty )\) |
x | Chebyshev polynomial seed |
\(\oplus\) | Xor operation |
sk | TA’s private key |
|| | Cascade operation |
\({\mathbb {G}_1}\), \(\mathbb {G}_{2}\) | Cyclic addition group and cyclic multiplication group |
P | A generator of the group \({\mathbb {G}_1}\) |
\(I{D_i}\) | ID of user i |
\(Prove(*,*)/verity(*,*)\) | The proof generation and verification functions of the Groth16 protocol |
\({E_{key}}(*)/{D_{key}}(*)\) | Symmetric Encryption/Decryption algorithm |
