fixes from review #1

Author: agryaznov

Cargo.lock

@@ -10,7 +10,6 @@ repository = "https://github.com/paritytech/substrate"
 [dependencies]
 hex = { version = "0.4", optional = true }
 codec = { version = "3.0.0", package = "parity-scale-codec", default-features = false, features = ["derive"] }
-k256 = { version = "0.10.2", default-features = false, features = ["arithmetic"] }
 log = { version = "0.4.13", default-features = false }
 scale-info = { version = "2.0.1", default-features = false, features = ["derive"] }
 serde = { version = "1.0.136", optional = true }
@@ -43,7 +42,6 @@ std = [
     "frame-support/std",
     "frame-system/std",
     "hex",
-    "k256/std",
     "log/std",
     "pallet-beefy/std",
     "pallet-mmr-primitives/std",

frame/beefy-mmr/Cargo.toml

@@ -46,7 +46,6 @@ dyn-clonable = { version = "0.9.0", optional = true }
 thiserror = { version = "1.0.30", optional = true }
 bitflags = "1.3"
 k256 = { version = "0.10.2", default-features = false, features = ["ecdsa"] }
-sp-core-hashing = { version = "4.0.0", default-features = false, path = "./hashing" }
 
 # full crypto
 ed25519-dalek = { version = "1.0.1", default-features = false, features = ["u64_backend", "alloc"], optional = true }
@@ -60,6 +59,7 @@ libsecp256k1 = { version = "0.7", default-features = false, features = ["static-
 merlin = { version = "2.0", default-features = false, optional = true }
 secp256k1 = { version = "0.21.2", default-features = false, features = ["recovery", "alloc"], optional = true }
 ss58-registry = { version = "1.11.0", default-features = false }
+sp-core-hashing = { version = "4.0.0", path = "./hashing", default-features = false, optional = true }
 sp-runtime-interface = { version = "6.0.0", default-features = false, path = "../runtime-interface" }
 
 [dev-dependencies]
@@ -134,6 +134,7 @@ full_crypto = [
 	"hex",
 	"libsecp256k1",
 	"secp256k1",
+	"sp-core-hashing",
 	"sp-runtime-interface/disable_target_static_assertions",
 	"merlin",
 ]

primitives/core/Cargo.toml

@@ -59,6 +59,7 @@ pub const CRYPTO_ID: CryptoTypeId = CryptoTypeId(*b"ecds");
 type Seed = [u8; 32];
 
 /// The ECDSA compressed public key.
+#[cfg_attr(feature = "full_crypto", derive(Hash))]
 #[derive(
 	Clone,
 	Copy,
@@ -71,7 +72,6 @@ type Seed = [u8; 32];
 	PartialEq,
 	PartialOrd,
 	Ord,
-	Hash,
 )]
 pub struct Public(pub [u8; 33]);
 
@@ -103,16 +103,15 @@ impl Public {
 
 	/// Converts self into Ethereum address
 	pub fn to_eth_address(&self) -> Result<[u8; 20], ()> {
-		use crate::hashing::keccak_256;
-		use k256::{elliptic_curve::sec1::ToEncodedPoint, PublicKey};
+	    use k256::{elliptic_curve::sec1::ToEncodedPoint, PublicKey};
 
 		PublicKey::from_sec1_bytes(self.as_slice())
 			.map(|pub_key| {
 				// uncompress the key
 				let uncompressed = pub_key.to_encoded_point(false);
 				// convert to ETH address
 				let res: [u8; 20] =
-					keccak_256(&uncompressed.as_bytes()[1..])[12..].try_into().unwrap();
+					sp_io::hashing::keccak_256(&uncompressed.as_bytes()[1..])[12..].try_into().unwrap();
 				res
 			})
 			.map_err(|_| ())

primitives/core/src/ecdsa.rs

@@ -48,11 +48,11 @@ pub use sp_debug_derive::RuntimeDebug;
 #[cfg(feature = "std")]
 pub use impl_serde::serialize as bytes;
 
+#[cfg(feature = "full_crypto")]
 pub mod hashing;
-pub use hashing::keccak_256;
 
 #[cfg(feature = "full_crypto")]
-pub use hashing::{blake2_128, blake2_256, twox_128, twox_256, twox_64};
+pub use hashing::{blake2_128, blake2_256, keccak_256, twox_128, twox_256, twox_64};
 pub mod crypto;
 pub mod hexdisplay;