Implement first signing stub

Author: jshufro

config.example.yaml

@@ -20,3 +20,7 @@ ssl:
     privkey: "/path/to/server.key"
 # Optional: root CA for verifying Dirk servers (omit to use system pool)
 root_ca: "/path/to/ca.crt"
+
+# Optional: network is either mainnet or hoodi
+# Default is mainnet
+network: "hoodi"

config/config.go

@@ -28,6 +28,9 @@ type Config struct {
 		RefreshThreshold time.Duration `mapstructure:"refresh_threshold"`
 		RefreshRetry     time.Duration `mapstructure:"refresh_retry"`
 	}
+
+	// Network is either mainnet or hoodi
+	Network string `mapstructure:"network"`
 }
 
 // Load reads configuration from file and environment into cfg.
@@ -41,6 +44,7 @@ func Load(cfgFile string) (*Config, error) {
 	// Defaults
 	v.SetDefault("listen_address", "0.0.0.0")
 	v.SetDefault("listen_port", 9090)
+	v.SetDefault("network", "mainnet")
 
 	if cfgFile != "" {
 		v.SetConfigFile(cfgFile)
@@ -54,5 +58,18 @@ func Load(cfgFile string) (*Config, error) {
 		return nil, fmt.Errorf("unmarshaling config: %w", err)
 	}
 
+	_ = cfg.GetGenesisForkVersion()
+
 	return &cfg, nil
 }
+
+func (c *Config) GetGenesisForkVersion() []byte {
+	switch c.Network {
+	case "mainnet":
+		return []byte{0x00, 0x00, 0x00, 0x00}
+	case "hoodi":
+		return []byte{0x10, 0x00, 0x09, 0x10}
+	default:
+		panic("invalid network")
+	}
+}

go.mod

@@ -3,69 +3,90 @@ module github.com/jshufro/remote-signer-dirk-interop
 go 1.25.1
 
 require (
+	github.com/OffchainLabs/prysm/v7 v7.1.2
+	github.com/attestantio/go-eth2-client v0.28.0
 	github.com/herumi/bls-eth-go-binary v1.36.1
 	github.com/oapi-codegen/runtime v1.2.0
+	github.com/rs/zerolog v1.33.0
 	github.com/spf13/viper v1.19.0
 	github.com/wealdtech/go-eth2-wallet-dirk v1.6.0
-	github.com/wealdtech/go-eth2-wallet-types v1.10.0
-	google.golang.org/grpc v1.67.1
+	github.com/wealdtech/go-eth2-wallet-types/v2 v2.12.0
+	google.golang.org/grpc v1.71.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/OffchainLabs/go-bitfield v0.0.0-20251031151322-f427d04d8506 // indirect
 	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bits-and-blooms/bitset v1.17.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/emicklei/dot v1.6.2 // indirect
+	github.com/consensys/bavard v0.1.22 // indirect
+	github.com/consensys/gnark-crypto v0.14.0 // indirect
+	github.com/crate-crypto/go-ipa v0.0.0-20240724233137-53bbb0ceb27a // indirect
+	github.com/crate-crypto/go-kzg-4844 v1.1.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
+	github.com/emicklei/dot v1.6.4 // indirect
+	github.com/ethereum/c-kzg-4844 v1.0.0 // indirect
+	github.com/ethereum/go-ethereum v1.15.9 // indirect
+	github.com/ethereum/go-verkle v0.2.2 // indirect
+	github.com/fatih/color v1.16.0 // indirect
 	github.com/ferranbt/fastssz v0.1.4 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/goccy/go-yaml v1.9.2 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/holiman/uint256 v1.3.2 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/minio/highwayhash v1.0.2 // indirect
 	github.com/minio/sha256-simd v1.0.1 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/mmcloughlin/addchain v0.4.0 // indirect
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
-	github.com/phoreproject/bls v0.0.0-20191211001008-9d5f85bf4a9b // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_golang v1.20.5 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.60.1 // indirect
+	github.com/prometheus/common v0.62.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/rogpeppe/go-internal v1.11.0 // indirect
-	github.com/rs/zerolog v1.33.0 // indirect
+	github.com/prysmaticlabs/fastssz v0.0.0-20251103153600-259302269bfc // indirect
+	github.com/prysmaticlabs/gohashtree v0.0.5-beta // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.11.0 // indirect
 	github.com/spf13/cast v1.6.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/supranational/blst v0.3.16-0.20250831170142-f48500c1fdbe // indirect
+	github.com/thomaso-mirodin/intmath v0.0.0-20160323211736-5dc6d854e46e // indirect
 	github.com/wealdtech/eth2-signer-api v1.7.2 // indirect
-	github.com/wealdtech/go-bytesutil v1.1.0 // indirect
-	github.com/wealdtech/go-eth2-types v1.0.0 // indirect
 	github.com/wealdtech/go-eth2-types/v2 v2.8.2 // indirect
-	github.com/wealdtech/go-eth2-wallet-types/v2 v2.12.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.56.0 // indirect
-	go.opentelemetry.io/otel v1.31.0 // indirect
-	go.opentelemetry.io/otel/metric v1.31.0 // indirect
-	go.opentelemetry.io/otel/trace v1.31.0 // indirect
-	go.uber.org/atomic v1.9.0 // indirect
-	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/net v0.30.0 // indirect
-	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.30.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20241021214115-324edc3d5d38 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241021214115-324edc3d5d38 // indirect
-	google.golang.org/protobuf v1.35.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 // indirect
+	go.opentelemetry.io/otel v1.35.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/trace v1.35.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.44.0 // indirect
+	golang.org/x/exp v0.0.0-20250128182459-e0ece0dbea4c // indirect
+	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
+	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250106144421-5f5ef82da422 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/protobuf v1.36.5 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
+	rsc.io/tmplfunc v0.0.3 // indirect
 )