June 2024 nightly update

Replaces #571.

crypto/frost/README.md

@@ -10,7 +10,7 @@ integrating with existing systems.
 
 This library offers ciphersuites compatible with the
 [IETF draft](https://github.com/cfrg/draft-irtf-cfrg-frost). Currently, version
-11 is supported.
+15 is supported.
 
 This library was
 [audited by Cypher Stack in March 2023](https://github.com/serai-dex/serai/raw/e1bb2c191b7123fd260d008e31656d090d559d21/audits/Cypher%20Stack%20crypto%20March%202023/Audit.pdf),

crypto/frost/src/sign.rs

@@ -362,9 +362,7 @@ impl<C: Curve, A: Algorithm<C>> SignMachine<A::Signature> for AlgorithmSignMachi
       rho_transcript.append_message(b"message", C::hash_msg(msg));
       rho_transcript.append_message(
         b"preprocesses",
-        &C::hash_commitments(
-          self.params.algorithm.transcript().challenge(b"preprocesses").as_ref(),
-        ),
+        C::hash_commitments(self.params.algorithm.transcript().challenge(b"preprocesses").as_ref()),
       );
 
       // Generate the per-signer binding factors