diff --git a/internal/pkg/cmb/sign.go b/internal/pkg/cmb/sign.go
index e206c54..1e63c3d 100644
--- a/internal/pkg/cmb/sign.go
+++ b/internal/pkg/cmb/sign.go
@@ -13,8 +13,6 @@ import (
 	"voucher/internal/pkg/cmb/encrypt"
 )
 
-const messageSeparator = byte(0x7C)
-
 type Decrypts struct {
 	EncryptBody string
 	PrivateKey  string
@@ -34,6 +32,7 @@ func EncryptBody(encrypts *Encrypts) (string, error) {
 	if _, err := rand.Read(randomKey); err != nil {
 		return "", fmt.Errorf("生成randomKey失败:%v", err)
 	}
+
 	if _, err := rand.Read(randomIV); err != nil {
 		return "", fmt.Errorf("生成randomIV失败: %v", err)
 	}