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Use math for multiscalar docs

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Henry de Valence 2018-01-26 13:39:11 -08:00
parent 4b47087b40
commit 52904b5c3e
1 changed files with 11 additions and 7 deletions
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18
src/ristretto.rs
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@ -1045,8 +1045,11 @@ define_mul_variants!(LHS = RistrettoPoint, RHS = Scalar, Output = RistrettoPoint
define_mul_variants!(LHS = Scalar, RHS = RistrettoPoint, Output = RistrettoPoint);
/// Given a vector of (possibly secret) scalars and a vector of
/// (possibly secret) points, compute `c_1 P_1 + ... + c_n P_n`.
/// Given an iterator of (possibly secret) scalars and an iterator of
/// (possibly secret) points, compute
/// $$
/// Q = c\_1 P\_1 + \cdots + c\_n P\_n.
/// $$
///
/// This function has the same behaviour as
/// `vartime::multiscalar_mult` but is constant-time.
@ -1161,15 +1164,16 @@ pub mod vartime {
//! Variable-time operations on ristretto points, useful for non-secret data.
use super::*;
/// Given a vector of public scalars and a vector of (possibly secret)
/// Given an iterable of public scalars and an iterable of public
/// points, compute
///
/// c_1 P_1 + ... + c_n P_n.
/// $$
/// Q = c\_1 P\_1 + \cdots + c\_n P\_n.
/// $$
///
/// # Input
///
/// A vector of `Scalar`s and a vector of `RistrettoPoints`. It is an
/// error to call this function with two vectors of different lengths.
/// A iterable of `Scalar`s and a iterable of `RistrettoPoints`. It is an
/// error to call this function with two iterators of different lengths.
#[cfg(any(feature = "alloc", feature = "std"))]
pub fn multiscalar_mult<'a, 'b, I, J>(scalars: I, points: J) -> RistrettoPoint
where I: IntoIterator<Item = &'a Scalar>,