add a public key method

signer/bls/cerberus/cerberus.go

@@ -87,3 +87,7 @@ func (s Signer) GetOperatorId() (string, error) {
 	publicKey := pubkey.Deserialize(pkBytes)
 	return publicKey.GetOperatorID(), nil
 }
+
+func (s Signer) GetPublicKeyHex() string {
+	return s.pubKeyHex
+}

signer/bls/local/local.go

@@ -2,6 +2,7 @@ package local
 
 import (
 	"context"
+	"encoding/hex"
 
 	sdkBls "github.com/Layr-Labs/eigensdk-go/crypto/bls"
 	"github.com/Layr-Labs/eigensdk-go/signer/bls/types"
@@ -40,3 +41,7 @@ func (s Signer) Sign(ctx context.Context, msg []byte) ([]byte, error) {
 func (s Signer) GetOperatorId() (string, error) {
 	return s.key.PubKey.GetOperatorID(), nil
 }
+
+func (s Signer) GetPublicKeyHex() string {
+	return hex.EncodeToString(s.key.PubKey.Serialize())
+}

signer/bls/signer.go

@@ -15,6 +15,8 @@ type Signer interface {
 	// GetOperatorId returns the operator ID of the signer.
 	// This is hash of the G1 public key of the signer
 	GetOperatorId() (string, error)
+
+	GetPublicKeyHex() string
 }
 
 // NewSigner creates a new Signer instance based on the provided configuration.