diff --git a/crates/sui-bridge/src/sui_transaction_builder.rs b/crates/sui-bridge/src/sui_transaction_builder.rs
index 932e749f9fd58..b86837bc9e639 100644
--- a/crates/sui-bridge/src/sui_transaction_builder.rs
+++ b/crates/sui-bridge/src/sui_transaction_builder.rs
@@ -1,7 +1,7 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
-use fastcrypto::traits::{KeyPair, ToFromBytes};
+use fastcrypto::traits::ToFromBytes;
 use move_core_types::ident_str;
 use std::{collections::HashMap, str::FromStr};
 use sui_types::bridge::{
@@ -17,7 +17,6 @@ use sui_types::{
 };
 use sui_types::{Identifier, BRIDGE_PACKAGE_ID};
 
-use crate::crypto::BridgeAuthorityKeyPair;
 use crate::{
     error::{BridgeError, BridgeResult},
     types::{BridgeAction, VerifiedCertifiedBridgeAction},
@@ -551,16 +550,17 @@ pub fn build_committee_register_transaction(
     validator_address: SuiAddress,
     gas_object_ref: &ObjectRef,
     bridge_object_arg: ObjectArg,
-    bridge_key: BridgeAuthorityKeyPair,
+    bridge_authority_pub_key_bytes: Vec<u8>,
     bridge_url: &str,
     ref_gas_price: u64,
 ) -> BridgeResult<TransactionData> {
     let mut builder = ProgrammableTransactionBuilder::new();
     let system_state = builder.obj(ObjectArg::SUI_SYSTEM_MUT).unwrap();
     let bridge = builder.obj(bridge_object_arg).unwrap();
-    let pub_key = bridge_key.public().as_bytes().to_vec();
     let bridge_pubkey = builder
-        .input(CallArg::Pure(bcs::to_bytes(&pub_key).unwrap()))
+        .input(CallArg::Pure(
+            bcs::to_bytes(&bridge_authority_pub_key_bytes).unwrap(),
+        ))
         .unwrap();
     let url = builder
         .input(CallArg::Pure(bcs::to_bytes(bridge_url.as_bytes()).unwrap()))
diff --git a/crates/sui/src/sui_commands.rs b/crates/sui/src/sui_commands.rs
index ecab38eb69006..a2b9355cdcb96 100644
--- a/crates/sui/src/sui_commands.rs
+++ b/crates/sui/src/sui_commands.rs
@@ -40,7 +40,7 @@ use sui_swarm_config::network_config::NetworkConfig;
 use sui_swarm_config::network_config_builder::ConfigBuilder;
 use sui_swarm_config::node_config_builder::FullnodeConfigBuilder;
 use sui_types::base_types::SuiAddress;
-use sui_types::crypto::{SignatureScheme, SuiKeyPair};
+use sui_types::crypto::{SignatureScheme, SuiKeyPair, ToFromBytes};
 use tracing::info;
 
 #[allow(clippy::large_enum_variant)]
@@ -404,7 +404,7 @@ impl SuiCommand {
                         sui_address,
                         &gas_obj_ref,
                         bridge_arg,
-                        kp,
+                        kp.public().as_bytes().to_vec(),
                         &format!("http://127.0.0.1:{port}"),
                         rgp,
                     )
diff --git a/crates/sui/src/validator_commands.rs b/crates/sui/src/validator_commands.rs
index d9d42ac7c5890..d5a77adee7864 100644
--- a/crates/sui/src/validator_commands.rs
+++ b/crates/sui/src/validator_commands.rs
@@ -34,10 +34,8 @@ use fastcrypto::{
 };
 use serde::Serialize;
 use shared_crypto::intent::{Intent, IntentMessage, IntentScope};
-use sui_bridge::config::BridgeNodeConfig;
 use sui_bridge::sui_client::SuiClient as SuiBridgeClient;
 use sui_bridge::sui_transaction_builder::build_committee_register_transaction;
-use sui_config::Config;
 use sui_json_rpc_types::{
     SuiObjectDataOptions, SuiTransactionBlockResponse, SuiTransactionBlockResponseOptions,
 };
@@ -169,9 +167,9 @@ pub enum SuiValidatorCommand {
     },
     /// Sui native bridge committee member registration
     BridgeCommitteeRegistration {
-        /// Path to bridge node config
+        /// Path to Bridge Authority Key file
         #[clap(long)]
-        bridge_node_config_path: PathBuf,
+        bridge_authority_key_path: PathBuf,
         /// Bridge authority URL which clients collects action signatures from
         #[clap(long)]
         bridge_authority_url: String,
@@ -469,24 +467,19 @@ impl SuiValidatorCommand {
                 }
             }
             SuiValidatorCommand::BridgeCommitteeRegistration {
-                bridge_node_config_path,
+                bridge_authority_key_path,
                 bridge_authority_url,
             } => {
-                let bridge_config = match BridgeNodeConfig::load(bridge_node_config_path) {
-                    Ok(config) => config,
-                    Err(e) => panic!("Couldn't load BridgeNodeConfig, caused by: {e}"),
-                };
                 // Read bridge keypair
-                let ecdsa_keypair = match read_key(&bridge_config.bridge_authority_key_path, true)?
-                {
+                let ecdsa_keypair = match read_key(&bridge_authority_key_path, true)? {
                     SuiKeyPair::Secp256k1(key) => key,
                     _ => unreachable!("we required secp256k1 key in `read_key`"),
                 };
 
                 let address = context.active_address()?;
                 println!("Starting bridge committee registration for Sui validator: {address}, with bridge public key: {}", ecdsa_keypair.public);
-
-                let bridge_client = SuiBridgeClient::new(&bridge_config.sui.sui_rpc_url).await?;
+                let sui_rpc_url = &context.config.get_active_env().unwrap().rpc;
+                let bridge_client = SuiBridgeClient::new(sui_rpc_url).await?;
                 let bridge = bridge_client
                     .get_mutable_bridge_object_arg_must_succeed()
                     .await;
@@ -501,7 +494,7 @@ impl SuiValidatorCommand {
                     address,
                     &gas,
                     bridge,
-                    ecdsa_keypair,
+                    ecdsa_keypair.public().as_bytes().to_vec(),
                     &bridge_authority_url,
                     gas_price,
                 )
diff --git a/crates/test-cluster/src/lib.rs b/crates/test-cluster/src/lib.rs
index ed427b31fb117..40045563fd6c6 100644
--- a/crates/test-cluster/src/lib.rs
+++ b/crates/test-cluster/src/lib.rs
@@ -57,8 +57,8 @@ use sui_types::bridge::{get_bridge, TOKEN_ID_BTC, TOKEN_ID_ETH, TOKEN_ID_USDC, T
 use sui_types::bridge::{get_bridge_obj_initial_shared_version, BridgeSummary, BridgeTrait};
 use sui_types::committee::CommitteeTrait;
 use sui_types::committee::{Committee, EpochId};
-use sui_types::crypto::KeypairTraits;
 use sui_types::crypto::SuiKeyPair;
+use sui_types::crypto::{KeypairTraits, ToFromBytes};
 use sui_types::effects::{TransactionEffects, TransactionEvents};
 use sui_types::error::SuiResult;
 use sui_types::governance::MIN_VALIDATOR_JOINING_STAKE_MIST;
@@ -1263,7 +1263,7 @@ impl TestClusterBuilder {
                 validator_address,
                 &gas,
                 bridge_arg,
-                kp.copy(),
+                kp.public().as_bytes().to_vec(),
                 &server_url,
                 ref_gas_price,
             )