misc: Add gosec to check security issues (#424)

* Add gosec to tools

* Run security check to ci

* Fix secrity issues

1 files changed, 8 insertions, 1 deletions

diff --git a/common/utils.go b/common/utils.go
index 7e89c05..63d25a3 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -2,13 +2,20 @@ package common
 
 import (
 	"math/rand"
+	"time"
 )
 
+var random *rand.Rand
+
+func init() {
+	random = rand.New(rand.NewSource(time.Now().Unix()))
+}
+
 // NewRandomHash returns a random Hash-like value.
 func NewRandomHash() Hash {
 	x := Hash{}
 	for i := 0; i < HashLength; i++ {
-		x[i] = byte(rand.Int() % 256)
+		x[i] = byte(random.Int() % 256)
 	}
 	return x
 }