Module curve25519_dalek::constants [−] [src]

This module contains various constants (such as curve parameters and useful field elements like sqrt(-1)), as well as lookup tables of pre-computed points.

Constants

A	In Montgomery form y² = x³+Ax²+x, Curve25519 has A=486662.
BASE_CMPRSSD	Basepoint has y = 4/5.
HALF_Q_MINUS_1_BYTES	HALF_Q_MINUS_1_BYTES is (2^255-20)/2 expressed in little endian form.
SQRT_M1
SQRT_MINUS_A	SQRT_MINUS_A is sqrt(-486662)
SQRT_MINUS_HALF	SQRT_MINUS_HALF is sqrt(-1/2)
base	Table containing precomputed multiples of the basepoint `B = (x,4/5)`.
bi
d
d2
l	`l` is the order of base point, i.e. 2²⁵² + 27742317777372353535851937790883648493, in little-endian form
lminus1	`lminus1` is the order of base point minus one, i.e. 2²⁵² + 27742317777372353535851937790883648493 - 1, in little-endian form