From 38a6da35d9466c82cd8fecf302affe9505a0d08d Mon Sep 17 00:00:00 2001
From: "junj2.liang" <junj2.liang@sunyard.com>
Date: Thu, 1 Sep 2022 14:28:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0init/update/digest/finish?=
 =?UTF-8?q?=E9=95=BF=E6=95=B0=E6=8D=AE=E6=93=8D=E4=BD=9C?=
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---
 src/main/java/com/sunyard/sge/database/SydApiSM4.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/sunyard/sge/database/SydApiSM4.java b/src/main/java/com/sunyard/sge/database/SydApiSM4.java
index 893f60d..20a453c 100644
--- a/src/main/java/com/sunyard/sge/database/SydApiSM4.java
+++ b/src/main/java/com/sunyard/sge/database/SydApiSM4.java
@@ -98,7 +98,7 @@ public class SydApiSM4 {
         }
         else {
             if (0 == sourceWrap.array().length) {
-                if (plength<16){
+                if (plength<16||plength/16<2){
                     api.SYD_SM4_LongData(iKeyIndex, new byte[0], iPkgNum, iFlag);
                     ByteBuffer bufferResult = ByteBuffer.allocate(sourceWrap.array().length + plength);
                     bufferResult.put(sourceWrap);
@@ -125,7 +125,7 @@ public class SydApiSM4 {
                 return api.SYD_SM4_LongData(iKeyIndex, pcdataResult, iPkgNum, iFlag);
 
             } else {
-                if (16 > pcData.length + sourceWrap.array().length) {
+                if (16 > pcData.length + sourceWrap.array().length||(pcData.length + sourceWrap.array().length)/16<2) {
                     ByteBuffer bufferResult = ByteBuffer.allocate(sourceWrap.array().length + plength);
                     bufferResult.put(sourceWrap.array());
                     bufferResult.put(pcData);