feat(core): implement signeddata

Cargo.toml

@@ -89,6 +89,8 @@ testcontainers = "0.26"
 test-case = "3.3"
 tree_hash = "0.12"
 tree_hash_derive = "0.12"
+ssz = { package = "ethereum_ssz", version = "0.10.1" }
+typenum = "1"
 wiremock = "0.6"
 
 # Crates in the workspace

crates/core/Cargo.toml

@@ -13,20 +13,29 @@ crossbeam.workspace = true
 hex.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+serde_with.workspace = true
+base64.workspace = true
 thiserror.workspace = true
 tokio.workspace = true
 libp2p.workspace = true
 regex.workspace = true
 prost.workspace = true
 prost-types.workspace = true
+pluto-eth2api.workspace = true
+pluto-eth2util.workspace = true
+tree_hash.workspace = true
 
 [dev-dependencies]
+alloy.workspace = true
 rand.workspace = true
 libp2p.workspace = true
 prost.workspace = true
 prost-types.workspace = true
 hex.workspace = true
 chrono.workspace = true
+ssz.workspace = true
+typenum.workspace = true
+test-case.workspace = true
 
 [build-dependencies]
 pluto-build-proto.workspace = true

crates/core/src/lib.rs

@@ -8,6 +8,9 @@ pub mod qbft;
 /// Types for the Charon core.
 pub mod types;
 
+/// Signed data wrappers and helpers.
+pub mod signeddata;
+
 /// Consensus-related functionality.
 pub mod consensus;