diff --git a/disperser/cmd/controller/config.go b/disperser/cmd/controller/config.go
index 6c9cbe3bc..b07b6d60e 100644
--- a/disperser/cmd/controller/config.go
+++ b/disperser/cmd/controller/config.go
@@ -25,13 +25,14 @@ type Config struct {
 
 	DynamoDBTableName string
 
-	EthClientConfig   geth.EthClientConfig
-	AwsClientConfig   aws.ClientConfig
-	DisperserKMSKeyID string
-	LoggerConfig      common.LoggerConfig
-	IndexerConfig     indexer.Config
-	ChainStateConfig  thegraph.Config
-	UseGraph          bool
+	EthClientConfig                     geth.EthClientConfig
+	AwsClientConfig                     aws.ClientConfig
+	DisperserStoreChunksSigningDisabled bool
+	DisperserKMSKeyID                   string
+	LoggerConfig                        common.LoggerConfig
+	IndexerConfig                       indexer.Config
+	ChainStateConfig                    thegraph.Config
+	UseGraph                            bool
 
 	BLSOperatorStateRetrieverAddr string
 	EigenDAServiceManagerAddr     string
@@ -61,11 +62,12 @@ func NewConfig(ctx *cli.Context) (Config, error) {
 		relays[i] = corev2.RelayKey(relay)
 	}
 	config := Config{
-		DynamoDBTableName: ctx.GlobalString(flags.DynamoDBTableNameFlag.Name),
-		EthClientConfig:   ethClientConfig,
-		AwsClientConfig:   aws.ReadClientConfig(ctx, flags.FlagPrefix),
-		DisperserKMSKeyID: ctx.GlobalString(flags.DisperserKMSKeyIDFlag.Name),
-		LoggerConfig:      *loggerConfig,
+		DynamoDBTableName:                   ctx.GlobalString(flags.DynamoDBTableNameFlag.Name),
+		EthClientConfig:                     ethClientConfig,
+		AwsClientConfig:                     aws.ReadClientConfig(ctx, flags.FlagPrefix),
+		DisperserStoreChunksSigningDisabled: ctx.GlobalBool(flags.DisperserStoreChunksSigningDisabledFlag.Name),
+		DisperserKMSKeyID:                   ctx.GlobalString(flags.DisperserKMSKeyIDFlag.Name),
+		LoggerConfig:                        *loggerConfig,
 		EncodingManagerConfig: controller.EncodingManagerConfig{
 			PullInterval:                ctx.GlobalDuration(flags.EncodingPullIntervalFlag.Name),
 			EncodingRequestTimeout:      ctx.GlobalDuration(flags.EncodingRequestTimeoutFlag.Name),
diff --git a/disperser/cmd/controller/flags/flags.go b/disperser/cmd/controller/flags/flags.go
index 45d5ffac3..96c7edc8b 100644
--- a/disperser/cmd/controller/flags/flags.go
+++ b/disperser/cmd/controller/flags/flags.go
@@ -178,10 +178,16 @@ var (
 		EnvVar:   common.PrefixEnvVar(envVarPrefix, "METRICS_PORT"),
 		Value:    9101,
 	}
+	DisperserStoreChunksSigningDisabledFlag = cli.BoolFlag{
+		Name:     common.PrefixFlag(FlagPrefix, "disperser-store-chunks-signing-disabled"),
+		Usage:    "Whether to disable signing of store chunks requests",
+		Required: false,
+		EnvVar:   common.PrefixEnvVar(envVarPrefix, "DISPERSER_STORE_CHUNKS_SIGNING_DISABLED"),
+	}
 	DisperserKMSKeyIDFlag = cli.StringFlag{
 		Name:     common.PrefixFlag(FlagPrefix, "disperser-kms-key-id"),
 		Usage:    "Name of the key used to sign disperser requests (key must be stored in AWS KMS under this name)",
-		Required: true,
+		Required: false,
 		EnvVar:   common.PrefixEnvVar(envVarPrefix, "DISPERSER_KMS_KEY_ID"),
 	}
 )
@@ -198,7 +204,6 @@ var requiredFlags = []cli.Flag{
 	DispatcherPullIntervalFlag,
 	NodeRequestTimeoutFlag,
 	NumConnectionsToNodesFlag,
-	DisperserKMSKeyIDFlag,
 }
 
 var optionalFlags = []cli.Flag{
@@ -217,6 +222,8 @@ var optionalFlags = []cli.Flag{
 	NodeClientCacheNumEntriesFlag,
 	MaxBatchSizeFlag,
 	MetricsPortFlag,
+	DisperserStoreChunksSigningDisabledFlag,
+	DisperserKMSKeyIDFlag,
 }
 
 var Flags []cli.Flag
diff --git a/disperser/cmd/controller/main.go b/disperser/cmd/controller/main.go
index 1d792091a..9ba3aed83 100644
--- a/disperser/cmd/controller/main.go
+++ b/disperser/cmd/controller/main.go
@@ -151,7 +151,7 @@ func RunController(ctx *cli.Context) error {
 	}
 
 	var requestSigner clients.RequestSigner
-	if config.DisperserKMSKeyID != "" {
+	if !config.DisperserStoreChunksSigningDisabled {
 		requestSigner, err = clients.NewRequestSigner(
 			context.Background(),
 			config.AwsClientConfig.Region,
diff --git a/inabox/deploy/config.go b/inabox/deploy/config.go
index 2e5654a1c..1943ca5ab 100644
--- a/inabox/deploy/config.go
+++ b/inabox/deploy/config.go
@@ -323,27 +323,27 @@ func (env *Config) generateEncoderV2Vars(ind int, grpcPort string) EncoderVars {
 
 func (env *Config) generateControllerVars(ind int, graphUrl string) ControllerVars {
 	v := ControllerVars{
-		CONTROLLER_DYNAMODB_TABLE_NAME:         "test-BlobMetadata-v2",
-		CONTROLLER_BLS_OPERATOR_STATE_RETRIVER: env.EigenDA.OperatorStateRetreiver,
-		CONTROLLER_EIGENDA_SERVICE_MANAGER:     env.EigenDA.ServiceManager,
-		CONTROLLER_USE_GRAPH:                   "true",
-		CONTROLLER_GRAPH_URL:                   graphUrl,
-		CONTROLLER_ENCODING_PULL_INTERVAL:      "1s",
-		CONTROLLER_AVAILABLE_RELAYS:            "0,1,2,3",
-		CONTROLLER_DISPATCHER_PULL_INTERVAL:    "3s",
-		CONTROLLER_NODE_REQUEST_TIMEOUT:        "5s",
-		CONTROLLER_NUM_CONNECTIONS_TO_NODES:    "10",
-		CONTROLLER_CHAIN_RPC:                   "",
-		CONTROLLER_PRIVATE_KEY:                 "123",
-		CONTROLLER_NUM_CONFIRMATIONS:           "0",
-		CONTROLLER_INDEXER_PULL_INTERVAL:       "1s",
-		CONTROLLER_AWS_REGION:                  "",
-		CONTROLLER_AWS_ACCESS_KEY_ID:           "",
-		CONTROLLER_AWS_SECRET_ACCESS_KEY:       "",
-		CONTROLLER_AWS_ENDPOINT_URL:            "",
-		CONTROLLER_ENCODER_ADDRESS:             "0.0.0.0:34001",
-		CONTROLLER_FINALIZATION_BLOCK_DELAY:    "0",
-		CONTROLLER_DISPERSER_KMS_KEY_ID:        "",
+		CONTROLLER_DYNAMODB_TABLE_NAME:                     "test-BlobMetadata-v2",
+		CONTROLLER_BLS_OPERATOR_STATE_RETRIVER:             env.EigenDA.OperatorStateRetreiver,
+		CONTROLLER_EIGENDA_SERVICE_MANAGER:                 env.EigenDA.ServiceManager,
+		CONTROLLER_USE_GRAPH:                               "true",
+		CONTROLLER_GRAPH_URL:                               graphUrl,
+		CONTROLLER_ENCODING_PULL_INTERVAL:                  "1s",
+		CONTROLLER_AVAILABLE_RELAYS:                        "0,1,2,3",
+		CONTROLLER_DISPATCHER_PULL_INTERVAL:                "3s",
+		CONTROLLER_NODE_REQUEST_TIMEOUT:                    "5s",
+		CONTROLLER_NUM_CONNECTIONS_TO_NODES:                "10",
+		CONTROLLER_CHAIN_RPC:                               "",
+		CONTROLLER_PRIVATE_KEY:                             "123",
+		CONTROLLER_NUM_CONFIRMATIONS:                       "0",
+		CONTROLLER_INDEXER_PULL_INTERVAL:                   "1s",
+		CONTROLLER_AWS_REGION:                              "",
+		CONTROLLER_AWS_ACCESS_KEY_ID:                       "",
+		CONTROLLER_AWS_SECRET_ACCESS_KEY:                   "",
+		CONTROLLER_AWS_ENDPOINT_URL:                        "",
+		CONTROLLER_ENCODER_ADDRESS:                         "0.0.0.0:34001",
+		CONTROLLER_FINALIZATION_BLOCK_DELAY:                "0",
+		CONTROLLER_DISPERSER_STORE_CHUNKS_SIGNING_DISABLED: "true",
 	}
 	env.applyDefaults(&v, "CONTROLLER", "controller", ind)
 
diff --git a/inabox/deploy/env_vars.go b/inabox/deploy/env_vars.go
index 9e6de5171..19ee4b9df 100644
--- a/inabox/deploy/env_vars.go
+++ b/inabox/deploy/env_vars.go
@@ -625,8 +625,6 @@ type ControllerVars struct {
 
 	CONTROLLER_NUM_CONNECTIONS_TO_NODES string
 
-	CONTROLLER_DISPERSER_KMS_KEY_ID string
-
 	CONTROLLER_INDEXER_DATA_DIR string
 
 	CONTROLLER_ENCODING_REQUEST_TIMEOUT string
@@ -655,6 +653,10 @@ type ControllerVars struct {
 
 	CONTROLLER_METRICS_PORT string
 
+	CONTROLLER_DISPERSER_STORE_CHUNKS_SIGNING_DISABLED string
+
+	CONTROLLER_DISPERSER_KMS_KEY_ID string
+
 	CONTROLLER_CHAIN_RPC string
 
 	CONTROLLER_CHAIN_RPC_FALLBACK string