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-rw-r--r--eth/backend.go13
1 files changed, 10 insertions, 3 deletions
diff --git a/eth/backend.go b/eth/backend.go
index f5ebc9033..e8555061d 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -1,6 +1,7 @@
package eth
import (
+ "crypto/ecdsa"
"fmt"
"strings"
"sync"
@@ -37,6 +38,10 @@ type Config struct {
// discovery node URLs.
BootNodes string
+ // This key is used to identify the node on the network.
+ // If nil, an ephemeral key is used.
+ NodeKey *ecdsa.PrivateKey
+
Shh bool
Dial bool
@@ -150,9 +155,11 @@ func New(config *Config) (*Ethereum, error) {
if err != nil {
return nil, err
}
- netprv, err := crypto.GenerateKey()
- if err != nil {
- return nil, fmt.Errorf("could not generate server key: %v", err)
+ netprv := config.NodeKey
+ if netprv == nil {
+ if netprv, err = crypto.GenerateKey(); err != nil {
+ return nil, fmt.Errorf("could not generate server key: %v", err)
+ }
}
eth.net = &p2p.Server{
PrivateKey: netprv,