docs: update VartimeRistrettoPrecomputation documentation (#667)

dalek-cryptography · Jan 12, 2025 · 485ffab · 485ffab
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commit 485ffab
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diff --git a/curve25519-dalek/src/ristretto.rs b/curve25519-dalek/src/ristretto.rs
@@ -1007,6 +1007,9 @@ impl VartimeMultiscalarMul for RistrettoPoint {
 }
 
 /// Precomputation for variable-time multiscalar multiplication with `RistrettoPoint`s.
+///
+/// Note that for large numbers of `RistrettoPoint`s, this functionality may be less
+/// efficient than the corresponding `VartimeMultiscalarMul` implementation.
 // This wraps the inner implementation in a facade type so that we can
 // decouple stability of the inner type from the stability of the
 // outer type.