refactor: encrypt bls key to json string

crypto/bls/attestation.go

@@ -186,6 +186,24 @@ func GenRandomBlsKeys() (*KeyPair, error) {
 
 // SaveToFile saves the private key in an encrypted keystore file
 func (k *KeyPair) SaveToFile(path string, password string) error {
+	data,err := k.EncryptedString(path, password)
+	if err != nil {
+		return err
+	}
+
+	dir := filepath.Dir(path)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		fmt.Println("Error creating directories:", err)
+		return err
+	}
+	err = os.WriteFile(path, data, 0644)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (k *KeyPair) EncryptedString(path string, password string) ([]byte,error) {
 	sk32Bytes := k.PrivKey.Bytes()
 	skBytes := make([]byte, 32)
 	for i := 0; i < 32; i++ {
@@ -199,7 +217,7 @@ func (k *KeyPair) SaveToFile(path string, password string) error {
 		keystore.StandardScryptP,
 	)
 	if err != nil {
-		return err
+		return nil,err
 	}
 
 	encryptedBLSStruct := encryptedBLSKeyJSONV3{
@@ -208,20 +226,10 @@ func (k *KeyPair) SaveToFile(path string, password string) error {
 	}
 	data, err := json.Marshal(encryptedBLSStruct)
 	if err != nil {
-		return err
+		return nil,err
 	}
-
-	dir := filepath.Dir(path)
-	if err := os.MkdirAll(dir, 0755); err != nil {
-		fmt.Println("Error creating directories:", err)
-		return err
-	}
-	err = os.WriteFile(path, data, 0644)
-	if err != nil {
-		return err
-	}
-	return nil
-}
+	return data,nil
+ }
 
 func ReadPrivateKeyFromFile(path string, password string) (*KeyPair, error) {
 	keyStoreContents, err := os.ReadFile(path)

go.mod

@@ -8,7 +8,8 @@ require (
 	github.com/ethereum/go-ethereum v1.14.0
 	github.com/google/uuid v1.6.0
 	github.com/lmittmann/tint v1.0.4
-	github.com/prometheus/client_golang v1.19.0
+	github.com/prometheus/client_golang v1.19.1
+	github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466
 	github.com/stretchr/testify v1.9.0
 	github.com/testcontainers/testcontainers-go v0.30.0
 	github.com/urfave/cli/v2 v2.27.1
@@ -32,8 +33,9 @@ require (
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/moby/sys/user v0.1.0 // indirect
-	github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
 	go.opentelemetry.io/otel v1.24.0 // indirect
 	go.opentelemetry.io/otel/metric v1.24.0 // indirect
@@ -54,7 +56,7 @@ require (
 	github.com/bits-and-blooms/bitset v1.10.0 // indirect
 	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/consensys/bavard v0.1.13 // indirect
 	github.com/containerd/containerd v1.7.12 // indirect
 	github.com/containerd/log v0.1.0 // indirect
@@ -63,7 +65,7 @@ require (
 	github.com/crate-crypto/go-kzg-4844 v1.0.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set/v2 v2.1.0 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
 	github.com/docker/docker v25.0.5+incompatible // indirect
 	github.com/docker/go-connections v0.5.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
@@ -73,9 +75,9 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt v3.2.2+incompatible
 	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/holiman/uint256 v1.2.4 // indirect
-	github.com/klauspost/compress v1.16.0 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mmcloughlin/addchain v0.4.0 // indirect
@@ -88,9 +90,9 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
-	github.com/prometheus/client_model v0.5.0 // indirect
-	github.com/prometheus/common v0.48.0 // indirect
-	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.55.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible // indirect
 	github.com/shirou/gopsutil/v3 v3.23.12 // indirect
@@ -102,14 +104,14 @@ require (
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.22.0 // indirect
-	golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa // indirect
-	golang.org/x/mod v0.17.0 // indirect
+	golang.org/x/crypto v0.25.0 // indirect
+	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
+	golang.org/x/mod v0.19.0 // indirect
 	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.19.0 // indirect
-	golang.org/x/tools v0.20.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/tools v0.23.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
 	google.golang.org/grpc v1.58.3 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 	rsc.io/tmplfunc v0.0.3 // indirect
 )