diff --git a/cmd/tools/keygen/README.md b/cmd/tools/keygen/README.md
index 224ce03c..78474f30 100644
--- a/cmd/tools/keygen/README.md
+++ b/cmd/tools/keygen/README.md
@@ -4,5 +4,5 @@
 
 ```bash
 usage: 
-    ./main -size=[key-size]
+    go run .
 ```
diff --git a/cmd/tools/keygen/keygen_test.go b/cmd/tools/keygen/keygen_test.go
deleted file mode 100644
index 582fb214..00000000
--- a/cmd/tools/keygen/keygen_test.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package main
-
-import "testing"
-
-func TestNothing(_ *testing.T) {}
diff --git a/cmd/tools/pmanager/README.md b/cmd/tools/pmanager/README.md
index d1eb711b..68a99379 100644
--- a/cmd/tools/pmanager/README.md
+++ b/cmd/tools/pmanager/README.md
@@ -16,10 +16,10 @@ EOL - End of Line (Enter)
 ```bash
 $ go run . -salt="service-name" -work=24
 master-key
-EvCqIyPVq9ydjspox6GqN63ggT0xrUfNFnFgwAy1odQ0
+J64mESAVm2o-8q6nWaywsoQbQvn8pf7U74O-Vr9HwSDu
 ```
 
 ```bash
 $ echo "master-key" | go run . -salt="service-name" -work=24
-EvCqIyPVq9ydjspox6GqN63ggT0xrUfNFnFgwAy1odQ0
+J64mESAVm2o-8q6nWaywsoQbQvn8pf7U74O-Vr9HwSDu
 ```
diff --git a/cmd/tools/pmanager/pmanager_test.go b/cmd/tools/pmanager/pmanager_test.go
deleted file mode 100644
index 582fb214..00000000
--- a/cmd/tools/pmanager/pmanager_test.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package main
-
-import "testing"
-
-func TestNothing(_ *testing.T) {}
diff --git a/pkg/crypto/asymmetric/list_keychain.go b/pkg/crypto/asymmetric/list_keychain.go
index 963f8511..0029f79d 100644
--- a/pkg/crypto/asymmetric/list_keychain.go
+++ b/pkg/crypto/asymmetric/list_keychain.go
@@ -61,7 +61,5 @@ func (p *sListPubKeys) DelPubKey(pPubKey IPubKey) {
 }
 
 func hashkey(pSignPubKey ISignPubKey) string {
-	return hashing.NewHasher(
-		pSignPubKey.ToBytes(),
-	).ToString()
+	return hashing.NewHasher(pSignPubKey.ToBytes()).ToString()
 }