Research Article
Chebyshev Polynomial-Based Authentication Scheme in Multiserver Environment
Table 3
Notations used in the scheme [
13].
| Notations | Description |
| Ui, S | ith user, medical centre | PWi, IDi, Bi | Password/identity/biometrics of Ui | p, q, | Two prime numbers, finite field | EP () | EC in : y2 = x3 + ax + b (a, b ∈ ) and δ = 4a3 + 27 b2 ≠ 0 | | Group of points in EP () | P | Base point of with prime order q | aP | Point multiplication P | x | Secret key of S (1024 bit) | | Multiplicative group | h (.) | Hash function {0, 1} ⟶ | H (.) | Biohashing | h1 (.) | Hash function × ⟶ | ⊕, ||, ENC/DEC | XOR, concatenation, encrypt/decrypt |
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