Skeleton

crypto/kzg/src/kzg_commitment.rs

@@ -0,0 +1,36 @@
+use derivative::Derivative;
+use serde_big_array::BigArray;
+use serde_derive::{Deserialize, Serialize};
+use ssz_derive::{Decode, Encode};
+use std::fmt;
+use std::fmt::{Display, Formatter};
+use tree_hash::{PackedEncoding, TreeHash};
+
+#[derive(Derivative, Debug, Clone, Encode, Decode, Serialize, Deserialize)]
+#[derivative(PartialEq, Eq, Hash)]
+#[ssz(struct_behaviour = "transparent")]
+pub struct KzgCommitment(#[serde(with = "BigArray")] pub [u8; 48]);
+
+impl Display for KzgCommitment {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", eth2_serde_utils::hex::encode(self.0))
+    }
+}
+
+impl TreeHash for KzgCommitment {
+    fn tree_hash_type() -> tree_hash::TreeHashType {
+        <[u8; 48] as TreeHash>::tree_hash_type()
+    }
+
+    fn tree_hash_packed_encoding(&self) -> PackedEncoding {
+        self.0.tree_hash_packed_encoding()
+    }
+
+    fn tree_hash_packing_factor() -> usize {
+        <[u8; 48] as TreeHash>::tree_hash_packing_factor()
+    }
+
+    fn tree_hash_root(&self) -> tree_hash::Hash256 {
+        self.0.tree_hash_root()
+    }
+}