feat: Add KMS signer backend

CHANGELOG.md

@@ -15,8 +15,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Strict raft state. [#3167](https://github.com/evstack/ev-node/pull/3167)
 - Retry fetching the timestamp on error in da-client [#3166](https://github.com/evstack/ev-node/pull/3166)
 
-### Changes
+### Added
 
+- Add AWS & GCP KMS signer backend [#3171](https://github.com/evstack/ev-node/pull/3171)
 - Subscribe to forced inclusion namespace events [#3146](https://github.com/evstack/ev-node/pull/3146)
 - Display block source in sync log [#3193](https://github.com/evstack/ev-node/pull/3193)
 

apps/evm/cmd/init.go

@@ -58,7 +58,7 @@ func InitCmd() *cobra.Command {
 				}
 			}
 
-			proposerAddress, err := rollcmd.CreateSigner(&cfg, homePath, passphrase)
+			proposerAddress, err := rollcmd.CreateSigner(cmd.Context(), &cfg, homePath, passphrase)
 			if err != nil {
 				return err
 			}

apps/evm/go.mod

@@ -19,6 +19,13 @@ require (
 )
 
 require (
+	cloud.google.com/go v0.123.0 // indirect
+	cloud.google.com/go/auth v0.18.2 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
+	cloud.google.com/go/compute/metadata v0.9.0 // indirect
+	cloud.google.com/go/iam v1.5.3 // indirect
+	cloud.google.com/go/kms v1.26.0 // indirect
+	cloud.google.com/go/longrunning v0.8.0 // indirect
 	connectrpc.com/connect v1.19.1 // indirect
 	connectrpc.com/grpcreflect v1.3.0 // indirect
 	filippo.io/bigmod v0.1.1-0.20260103110540-f8a47775ebe5 // indirect
@@ -27,6 +34,21 @@ require (
 	github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6 // indirect
 	github.com/StackExchange/wmi v1.2.1 // indirect
 	github.com/armon/go-metrics v0.4.1 // indirect
+	github.com/aws/aws-sdk-go-v2 v1.41.4 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.32.12 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.12 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.20 // indirect
+	github.com/aws/aws-sdk-go-v2/service/kms v1.50.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.8 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.17 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.41.9 // indirect
+	github.com/aws/smithy-go v1.24.2 // indirect
 	github.com/benbjohnson/clock v1.3.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.20.0 // indirect
@@ -51,6 +73,7 @@ require (
 	github.com/emicklei/dot v1.6.2 // indirect
 	github.com/ethereum/c-kzg-4844/v2 v2.1.6 // indirect
 	github.com/fatih/color v1.18.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/ferranbt/fastssz v0.1.4 // indirect
 	github.com/filecoin-project/go-clock v0.1.0 // indirect
 	github.com/filecoin-project/go-jsonrpc v0.10.1 // indirect
@@ -70,7 +93,10 @@ require (
 	github.com/google/flatbuffers v25.1.24+incompatible // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/gopacket v1.1.19 // indirect
+	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.14 // indirect
+	github.com/googleapis/gax-go/v2 v2.18.0 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
 	github.com/hashicorp/go-hclog v1.6.3 // indirect
@@ -175,6 +201,8 @@ require (
 	github.com/wlynxg/anet v0.0.5 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 // indirect
 	go.opentelemetry.io/otel v1.42.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0 // indirect
@@ -193,16 +221,19 @@ require (
 	golang.org/x/exp v0.0.0-20260312153236-7ab1446f8b90 // indirect
 	golang.org/x/mod v0.34.0 // indirect
 	golang.org/x/net v0.52.0 // indirect
+	golang.org/x/oauth2 v0.36.0 // indirect
 	golang.org/x/sync v0.20.0 // indirect
 	golang.org/x/sys v0.42.0 // indirect
 	golang.org/x/telemetry v0.0.0-20260311193753-579e4da9a98c // indirect
 	golang.org/x/text v0.35.0 // indirect
-	golang.org/x/time v0.12.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
 	golang.org/x/tools v0.43.0 // indirect
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
 	gonum.org/v1/gonum v0.17.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260209200024-4cfbd4190f57 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260209200024-4cfbd4190f57 // indirect
+	google.golang.org/api v0.272.0 // indirect
+	google.golang.org/genproto v0.0.0-20260217215200-42d3e9bedb6d // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260217215200-42d3e9bedb6d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260311181403-84a4fc48630c // indirect
 	google.golang.org/grpc v1.79.3 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect