From 6be936ff96b44e728c4bf4553c85797001066853 Mon Sep 17 00:00:00 2001
From: zhangzengfei <zhangzengfei@iotlink.com>
Date: 星期五, 22 十一月 2019 17:06:15 +0800
Subject: [PATCH] fix: PKCS5 unPadding bug
---
aes.go | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/aes.go b/aes.go
index 5821bb9..0d39765 100644
--- a/aes.go
+++ b/aes.go
@@ -71,6 +71,10 @@
}
func PKCS5Trimming(encrypt []byte) []byte {
- padding := encrypt[len(encrypt)-1]
- return encrypt[:len(encrypt)-int(padding)]
+ length := len(encrypt)
+ number := int(encrypt[length-1])
+ if number >= length {
+ return nil
+ }
+ return encrypt[:length-number]
}
--
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