diff --git a/Cargo.lock b/Cargo.lock
index 88513718b0dd1..8b96a7367967c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -462,12 +462,6 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
-[[package]]
-name = "base64ct"
-version = "1.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "874f8444adcb4952a8bc51305c8be95c8ec8237bb0d2e78d2e039f771f8828a0"
-
 [[package]]
 name = "beef"
 version = "0.5.1"
@@ -5665,7 +5659,6 @@ dependencies = [
  "frame-system",
  "hex",
  "hex-literal",
- "k256",
  "log 0.4.14",
  "pallet-beefy",
  "pallet-mmr",
@@ -7073,17 +7066,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
-[[package]]
-name = "pkcs8"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cabda3fb821068a9a4fab19a683eac3af12edf0f34b94a8be53c4972b8149d0"
-dependencies = [
- "der",
- "spki",
- "zeroize",
-]
-
 [[package]]
 name = "pkg-config"
 version = "0.3.19"
@@ -9263,7 +9245,6 @@ checksum = "08da66b8b0965a5555b6bd6639e68ccba85e1e2506f5fbb089e93f8a04e1a2d1"
 dependencies = [
  "der",
  "generic-array 0.14.4",
- "pkcs8",
  "subtle",
  "zeroize",
 ]
@@ -10476,16 +10457,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
-[[package]]
-name = "spki"
-version = "0.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d01ac02a6ccf3e07db148d2be087da624fea0221a16152ed01f0496a6b0a27"
-dependencies = [
- "base64ct",
- "der",
-]
-
 [[package]]
 name = "ss58-registry"
 version = "1.11.0"
diff --git a/frame/beefy-mmr/Cargo.toml b/frame/beefy-mmr/Cargo.toml
index 19703fa79863a..bf72e295c478f 100644
--- a/frame/beefy-mmr/Cargo.toml
+++ b/frame/beefy-mmr/Cargo.toml
@@ -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",
diff --git a/primitives/core/Cargo.toml b/primitives/core/Cargo.toml
index c213e5cc16813..129d6406cb595 100644
--- a/primitives/core/Cargo.toml
+++ b/primitives/core/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",
 ]
diff --git a/primitives/core/src/ecdsa.rs b/primitives/core/src/ecdsa.rs
index 717246f5a2aae..3832ea21738f3 100644
--- a/primitives/core/src/ecdsa.rs
+++ b/primitives/core/src/ecdsa.rs
@@ -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]);
 
@@ -103,8 +103,7 @@ 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| {
@@ -112,7 +111,7 @@ impl Public {
 				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(|_| ())
diff --git a/primitives/core/src/lib.rs b/primitives/core/src/lib.rs
index 36eca35d7fdfb..b7c8b69e8a0ab 100644
--- a/primitives/core/src/lib.rs
+++ b/primitives/core/src/lib.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;