Smash Ciphersuite definitions into their own crates

Uses dalek-ff-group for Ed25519 and Ristretto. Uses minimal-ed448 for Ed448.
Adds ciphersuite-kp256 for Secp256k1 and P-256.

tests/coordinator/Cargo.toml

@@ -24,7 +24,9 @@ zeroize = { version = "1", default-features = false }
 rand_core = { version = "0.6", default-features = false }
 
 blake2 = "0.10"
-ciphersuite = { path = "../../crypto/ciphersuite", default-features = false, features = ["ristretto", "secp256k1"] }
+dalek-ff-group = { path = "../../crypto/dalek-ff-group", default-features = false }
+ciphersuite = { path = "../../crypto/ciphersuite", default-features = false }
+ciphersuite-kp256 = { path = "../../crypto/ciphersuite/kp256", default-features = false }
 schnorrkel = "0.11"
 dkg = { path = "../../crypto/dkg", default-features = false }
 

tests/coordinator/src/lib.rs

@@ -14,9 +14,10 @@ use rand_core::{RngCore, OsRng};
 
 use zeroize::Zeroizing;
 
+use dalek_ff_group::Ristretto;
 use ciphersuite::{
   group::{ff::PrimeField, GroupEncoding},
-  Ciphersuite, Ristretto,
+  Ciphersuite,
 };
 
 use serai_client::primitives::ExternalNetworkId;

tests/coordinator/src/tests/batch.rs

@@ -10,7 +10,10 @@ use blake2::{
   digest::{consts::U32, Digest},
   Blake2b,
 };
-use ciphersuite::{group::GroupEncoding, Ciphersuite, Ristretto, Secp256k1};
+
+use dalek_ff_group::Ristretto;
+use ciphersuite::{group::GroupEncoding, Ciphersuite};
+use ciphersuite_kp256::Secp256k1;
 use dkg::Participant;
 
 use scale::Encode;

tests/coordinator/src/tests/key_gen.rs

@@ -6,10 +6,12 @@ use std::{
 use zeroize::Zeroizing;
 use rand_core::OsRng;
 
+use dalek_ff_group::Ristretto;
 use ciphersuite::{
   group::{ff::Field, GroupEncoding},
-  Ciphersuite, Ristretto, Secp256k1,
+  Ciphersuite,
 };
+use ciphersuite_kp256::Secp256k1;
 use dkg::ThresholdParams;
 
 use serai_client::{

tests/coordinator/src/tests/rotation.rs

@@ -1,6 +1,6 @@
 use tokio::time::{sleep, Duration};
 
-use ciphersuite::Secp256k1;
+use ciphersuite_kp256::Secp256k1;
 
 use serai_client::{
   primitives::{insecure_pair_from_name, NetworkId},

tests/coordinator/src/tests/sign.rs

@@ -5,7 +5,7 @@ use std::{
 
 use rand_core::{RngCore, OsRng};
 
-use ciphersuite::Secp256k1;
+use ciphersuite_kp256::Secp256k1;
 
 use dkg::Participant;