From a7cd0bc0fe44e49bd24b50b820f8f7e06b132495 Mon Sep 17 00:00:00 2001
From: Aaron3S <chenyang@fit2cloud.com>
Date: Mon, 26 Sep 2022 12:02:28 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E5=AF=86=E7=A0=81?=
 =?UTF-8?q?=E5=90=8E=E7=A9=BA=E6=A0=BC=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 apps/common/utils/crypto.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/common/utils/crypto.py b/apps/common/utils/crypto.py
index da921b947..994c0f087 100644
--- a/apps/common/utils/crypto.py
+++ b/apps/common/utils/crypto.py
@@ -82,7 +82,8 @@ class PiicoSM4EcbCrypto(BaseCrypto):
         return self.cipher.encrypt(self.to_16(data))
 
     def _decrypt(self, data: bytes) -> bytes:
-        return self.cipher.decrypt(data)
+        bs = self.cipher.decrypt(data)
+        return bs[:bs.index(0)]
 
 
 class AESCrypto: