add db

internal/modules/password/password.go

@@ -0,0 +1,15 @@
+package password
+
+import "math/rand"
+
+var (
+	letters = []rune("abcdefghijklmnopqrstuvwxyz123456789")
+)
+
+func GenPass(n int) string {
+	b := make([]rune, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(len(letters))]
+	}
+	return string(b)
+}