Struct PointFn 

pub struct PointFn<const N: usize, const LAMBDA: usize, G>
where
    G: Group<LAMBDA>,
{
    pub alpha: [u8; N],
    pub beta: G,
}

Point function. Despite the name, it only ships an element of the domain and an element of the range. The actual meaning of the 2 elements is determined by the context.

• N is the byte size of the domain.
• LAMBDA here is used as the byte size of the range, unlike the one in the paper.

Fields

alpha: [u8; N]

$\alpha$, or say x in y = f(x)

beta: G

$\beta$, or say y in y = f(x)