SM3 性能优化

README.md

@@ -1,3 +1,24 @@
 # sydapi4j
 
 加密机 java 接口，基于 jna。
+
+
+
+## 启动 Slave
+在作为负载机的 Slave 机器上进行配置，主要有两种方式：
+
+方法一：配置 jmeter.properties 文件
+编辑 $JMETER_HOME/bin/jmeter.properties 文件，确认或取消注释以下配置：
+```
+server.rmi.ssl.disable=true        # 禁用SSL，简化内网配置
+server.rmi.localport=1099          # 固定RMI端口，方便防火墙放行
+java.rmi.server.hostname=Slave_IP  # 绑定本机网卡IP，避免多网卡问题
+```
+
+配置完成后，在 Slave 的 bin 目录下启动服务：
+
+Windows: 双击 jmeter-server.bat
+Linux/Mac: 运行 ./jmeter-server
+
+./jmeter-server -Djava.rmi.server.hostname=172.1.41.24 -Dserver.rmi.localport=1099
+

src/main/java/com/sunyard/SydApiException.java

@@ -45,6 +45,9 @@ public class SydApiException extends RuntimeException{
             case 4:
                 msg = "DER 编码格式错误(公钥) ";
                 break;
+            case 31:
+                msg = "缓冲区索引错误";
+                break;
             case 0xd:
                 msg = "公钥加密错误";
                 break;

src/main/java/com/sunyard/entity/TimeStats.java

@@ -0,0 +1,103 @@
+package com.sunyard.entity;
+
+/**
+ * SM2加密解密时间统计类
+ * 用于记录发送、计算、接收三个阶段的耗时
+ */
+public class TimeStats {
+    // 发送阶段总耗时（毫秒）- 循环发送数据块的时间
+    private long sendTime;
+    // 计算阶段耗时（毫秒）- 执行加密/解密计算的时间
+    private long computeTime;
+    // 接收阶段总耗时（毫秒）- 循环接收数据块的时间
+    private long receiveTime;
+    // 发送次数
+    private int sendCount;
+    // 接收次数
+    private int receiveCount;
+
+    public TimeStats() {
+        this.sendTime = 0;
+        this.computeTime = 0;
+        this.receiveTime = 0;
+        this.sendCount = 0;
+        this.receiveCount = 0;
+    }
+
+    public long getSendTime() {
+        return sendTime;
+    }
+
+    public void setSendTime(long sendTime) {
+        this.sendTime = sendTime;
+    }
+
+    public long getComputeTime() {
+        return computeTime;
+    }
+
+    public void setComputeTime(long computeTime) {
+        this.computeTime = computeTime;
+    }
+
+    public long getReceiveTime() {
+        return receiveTime;
+    }
+
+    public void setReceiveTime(long receiveTime) {
+        this.receiveTime = receiveTime;
+    }
+
+    public int getSendCount() {
+        return sendCount;
+    }
+
+    public void setSendCount(int sendCount) {
+        this.sendCount = sendCount;
+    }
+
+    public int getReceiveCount() {
+        return receiveCount;
+    }
+
+    public void setReceiveCount(int receiveCount) {
+        this.receiveCount = receiveCount;
+    }
+
+    /**
+     * 获取总耗时
+     */
+    public long getTotalTime() {
+        return sendTime + computeTime + receiveTime;
+    }
+
+    /**
+     * 获取各阶段耗时占比
+     */
+    public double getSendPercentage() {
+        long total = getTotalTime();
+        return total == 0 ? 0 : (double) sendTime / total * 100;
+    }
+
+    public double getComputePercentage() {
+        long total = getTotalTime();
+        return total == 0 ? 0 : (double) computeTime / total * 100;
+    }
+
+    public double getReceivePercentage() {
+        long total = getTotalTime();
+        return total == 0 ? 0 : (double) receiveTime / total * 100;
+    }
+
+    @Override
+    public String toString() {
+        return String.format(
+            "TimeStats{sendTime=%dms(%.1f%%), computeTime=%dms(%.1f%%), receiveTime=%dms(%.1f%%), total=%dms, sendCount=%d, receiveCount=%d}",
+            sendTime, getSendPercentage(),
+            computeTime, getComputePercentage(),
+            receiveTime, getReceivePercentage(),
+            getTotalTime(),
+            sendCount, receiveCount
+        );
+    }
+}

src/main/java/com/sunyard/util/BytesUtil.java

@@ -0,0 +1,174 @@
+package com.sunyard.util;
+
+import java.nio.ByteOrder;
+
+/**
+ * 字节数组转换工具类，提供常见的基本类型与字节数组之间的互转功能。
+ * 默认采用大端字节序（高位在前），也支持通过参数指定字节序。
+ *
+ * @author YourName
+ */
+public final class BytesUtil {
+
+    private BytesUtil() {
+        // 私有构造方法，防止实例化
+    }
+
+    // ==================== 无符号 short 转字节数组 ====================
+
+    /**
+     * 将无符号 short 值（以 int 形式传入，范围 0 ~ 65535）转换为大端字节序的字节数组（2字节）。
+     *
+     * @param value 无符号 short 值（0 到 65535）
+     * @return 长度为 2 的字节数组，高位在前
+     * @throws IllegalArgumentException 如果 value 超出 0~65535 范围
+     */
+    public static byte[] unsignedShortToBytes(int value) {
+        if (value < 0 || value > 0xFFFF) {
+            throw new IllegalArgumentException("Value out of range for unsigned short: " + value);
+        }
+        return new byte[]{
+                (byte) ((value >> 8) & 0xFF),
+                (byte) (value & 0xFF)
+        };
+    }
+
+    /**
+     * 将无符号 short 值（以 short 类型传入，自动按无符号处理）转换为大端字节序的字节数组（2字节）。
+     * 例如，传入 (short) 0x8001 会得到 { (byte)0x80, (byte)0x01 }。
+     *
+     * @param value short 类型，将按其二进制补码表示直接作为无符号值处理
+     * @return 长度为 2 的字节数组，高位在前
+     */
+    public static byte[] unsignedShortToBytes(short value) {
+        // 将 short 转为无符号 int
+        int unsignedValue = value & 0xFFFF;
+        return unsignedShortToBytes(unsignedValue);
+    }
+
+    /**
+     * 将无符号 short 值（int 类型）转换为指定字节序的字节数组（2字节）。
+     *
+     * @param value     无符号 short 值（0 到 65535）
+     * @param byteOrder 字节序，ByteOrder.BIG_ENDIAN 或 ByteOrder.LITTLE_ENDIAN
+     * @return 长度为 2 的字节数组
+     * @throws IllegalArgumentException 如果 value 超出范围或 byteOrder 为 null
+     */
+    public static byte[] unsignedShortToBytes(int value, ByteOrder byteOrder) {
+        if (byteOrder == null) {
+            throw new IllegalArgumentException("ByteOrder must not be null");
+        }
+        byte[] bytes = unsignedShortToBytes(value);
+        if (byteOrder == ByteOrder.LITTLE_ENDIAN) {
+            // 交换高低位
+            byte tmp = bytes[0];
+            bytes[0] = bytes[1];
+            bytes[1] = tmp;
+        }
+        return bytes;
+    }
+
+    /**
+     * 将无符号 short 值（short 类型）转换为指定字节序的字节数组（2字节）。
+     *
+     * @param value     short 类型，按无符号处理
+     * @param byteOrder 字节序
+     * @return 长度为 2 的字节数组
+     */
+    public static byte[] unsignedShortToBytes(short value, ByteOrder byteOrder) {
+        return unsignedShortToBytes(value & 0xFFFF, byteOrder);
+    }
+
+    // ==================== 字节数组转无符号 short ====================
+
+    /**
+     * 从字节数组的起始位置读取 2 字节，按大端序转换为无符号 short 值（返回 int 类型）。
+     *
+     * @param bytes  字节数组
+     * @param offset 起始偏移量
+     * @return 无符号 short 值（0 ~ 65535）
+     * @throws IllegalArgumentException 如果 bytes 为 null 或长度不足
+     */
+    public static int bytesToUnsignedShort(byte[] bytes, int offset) {
+        if (bytes == null || offset + 2 > bytes.length) {
+            throw new IllegalArgumentException("Invalid byte array or offset");
+        }
+        return ((bytes[offset] & 0xFF) << 8) | (bytes[offset + 1] & 0xFF);
+    }
+
+    /**
+     * 从字节数组的起始位置读取 2 字节，按指定字节序转换为无符号 short 值。
+     *
+     * @param bytes     字节数组
+     * @param offset    起始偏移量
+     * @param byteOrder 字节序
+     * @return 无符号 short 值
+     */
+    public static int bytesToUnsignedShort(byte[] bytes, int offset, ByteOrder byteOrder) {
+        if (byteOrder == ByteOrder.LITTLE_ENDIAN) {
+            return ((bytes[offset + 1] & 0xFF) << 8) | (bytes[offset] & 0xFF);
+        } else {
+            return bytesToUnsignedShort(bytes, offset);
+        }
+    }
+
+    // ==================== 其他常见转换（扩展） ====================
+
+    /**
+     * 将 int 值转换为大端序的 4 字节数组。
+     */
+    public static byte[] intToBytes(int value) {
+        return new byte[]{
+                (byte) ((value >> 24) & 0xFF),
+                (byte) ((value >> 16) & 0xFF),
+                (byte) ((value >> 8) & 0xFF),
+                (byte) (value & 0xFF)
+        };
+    }
+
+    /**
+     * 将大端序的 4 字节数组转换为 int 值。
+     */
+    public static int bytesToInt(byte[] bytes, int offset) {
+        if (bytes == null || offset + 4 > bytes.length) {
+            throw new IllegalArgumentException("Invalid byte array or offset");
+        }
+        return ((bytes[offset] & 0xFF) << 24)
+                | ((bytes[offset + 1] & 0xFF) << 16)
+                | ((bytes[offset + 2] & 0xFF) << 8)
+                | (bytes[offset + 3] & 0xFF);
+    }
+
+    /**
+     * 将 long 值转换为大端序的 8 字节数组。
+     */
+    public static byte[] longToBytes(long value) {
+        return new byte[]{
+                (byte) ((value >> 56) & 0xFF),
+                (byte) ((value >> 48) & 0xFF),
+                (byte) ((value >> 40) & 0xFF),
+                (byte) ((value >> 32) & 0xFF),
+                (byte) ((value >> 24) & 0xFF),
+                (byte) ((value >> 16) & 0xFF),
+                (byte) ((value >> 8) & 0xFF),
+                (byte) (value & 0xFF)
+        };
+    }
+
+    /**
+     * 将大端序的 8 字节数组转换为 long 值。
+     */
+    public static long bytesToLong(byte[] bytes, int offset) {
+        if (bytes == null || offset + 8 > bytes.length) {
+            throw new IllegalArgumentException("Invalid byte array or offset");
+        }
+        return ((long) (bytes[offset] & 0xFF) << 56)
+                | ((long) (bytes[offset + 1] & 0xFF) << 48)
+                | ((long) (bytes[offset + 2] & 0xFF) << 40)
+                | ((long) (bytes[offset + 3] & 0xFF) << 32)
+                | ((long) (bytes[offset + 4] & 0xFF) << 24)
+                | ((long) (bytes[offset + 5] & 0xFF) << 16)
+                | ((long) (bytes[offset + 6] & 0xFF) << 8)
+                | ((long) (bytes[offset + 7] & 0xFF));
+    }
+}

src/main/java/racal/sunyard/main/SydApi4j.java

@@ -16,6 +16,7 @@ import com.sunyard.constant.CertUsage;
 import com.sunyard.entity.ImportResult;
 import com.sunyard.entity.MutiReturn7;
 import com.sunyard.entity.Struct;
+import com.sunyard.entity.TimeStats;
 import com.sunyard.log.ILogFactory;
 import com.sunyard.log.ILogger;
 import com.sunyard.proto.Packet;
@@ -46,10 +47,7 @@ import racal.sunyard.main.proto.*;
 
 import javax.security.auth.x500.X500Principal;
 import java.io.*;
-import java.net.InetSocketAddress;
-import java.net.Socket;
-import java.net.SocketAddress;
-import java.net.SocketTimeoutException;
+import java.net.*;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.charset.Charset;
@@ -334,6 +332,10 @@ public class SydApi4j implements SydApi {
             byte[] publicKey,
             byte[] orgData) {
 
+        if (SydApi.DATA_HASH == nOrgDataType) {
+            orgData = SM3Hash(Util.bytes2HexString(publicKey), orgData);
+        }
+
         Proto74 proto = new Proto74();
 
         // 填充数据
@@ -6857,19 +6859,19 @@ public class SydApi4j implements SydApi {
         ParamChecker.checkNotNull(publicKey, "publicKey");
         ParamChecker.checkNotNull(pOrgData, "pOrgData");
 
-        final int CHUNK_SIZE = 63 * 1024; // 64 KB
+        final int CHUNK_SIZE = 62 * 1024; // 62 KB
         int dataLen = pOrgData.length;
         int offset = 0;
 
         while (offset < dataLen) {
             int len = Math.min(CHUNK_SIZE, dataLen - offset);
             // 调用底层支持偏移量的加密方法
-            SYD_SM2Encrypt(1, publicKey, ByteBuffer.wrap(pOrgData, offset, len), offset);
+            SYD_SM2Encrypt(1, publicKey, ByteBuffer.wrap(pOrgData, offset, len), offset, len, dataLen);
             offset += len;
         }
 
         // 计算
-        SYD_SM2Encrypt(2, publicKey, null, 0);
+        SYD_SM2Encrypt(2, publicKey, null, 0, 0, dataLen);
 
         // 取回
         int idx = 0;
@@ -6878,7 +6880,7 @@ public class SydApi4j implements SydApi {
         int isLast = 0;
 
         while (isLast != 1) {
-            MutiReturn7 ret = SYD_SM2Encrypt(3, null, null, idx);
+            MutiReturn7 ret = SYD_SM2Encrypt(3, null, null, idx, 0, 0);
             ByteBuffer bb = ret.getData();
             isLast = ret.getIsLast();
 
@@ -6905,7 +6907,7 @@ public class SydApi4j implements SydApi {
 
     //    @Override
     //  支持大包加解密
-    private MutiReturn7 SYD_SM2Encrypt(int dataType, byte[] publicKey, ByteBuffer pOrgData, int idx) {
+    private MutiReturn7 SYD_SM2Encrypt(int dataType, byte[] publicKey, ByteBuffer pOrgData, int idx, int inLen, int totalLen) {
         // 参数检查
         ParamChecker.checkInRange(dataType, "dataType", 1, 3);
 
@@ -6928,13 +6930,13 @@ public class SydApi4j implements SydApi {
             bb.put(publicKey);
         }
         if ( 1 == dataType ) { // 数据
-            bb.put(ByteUtil.shortToBytes((short) pOrgData.limit(), ByteOrder.BIG_ENDIAN));
+            bb.put(com.sunyard.util.BytesUtil.unsignedShortToBytes(inLen, ByteOrder.BIG_ENDIAN));
             bb.put(pOrgData);
-            bb.put(ByteUtil.intToBytes(idx));
+            bb.put(ByteUtil.intToBytes(idx, ByteOrder.BIG_ENDIAN));
         }
 
         if ( 3 == dataType) { // 仅数据长度
-            bb.put( ByteUtil.shortToBytes((short) (63*1024), ByteOrder.BIG_ENDIAN) );
+            bb.put( ByteUtil.shortToBytes((short) (62*1024), ByteOrder.BIG_ENDIAN) );
             bb.put( ByteUtil.intToBytes(idx, ByteOrder.BIG_ENDIAN));
         }
 
@@ -6947,8 +6949,41 @@ public class SydApi4j implements SydApi {
 
         // 通信
         synchronized (this) {
-            // 响应解析
-            bb = syncRead(syncSend(bb));
+            int originalTimeout = -1;
+            boolean timeoutModified = false;
+
+            try {
+                // 仅当 dataType == 2 时才执行超时时间调整逻辑
+                if (false && dataType == 2) {
+                    // 获取当前 Socket 超时时间（毫秒），可能为 -1（无限等待）或 0（立即超时）
+                    originalTimeout = this.socket.getSoTimeout();
+
+                    // 计算 totalLen 是 1MB 的多少倍（整数倍，如 2M→2，3M→3，4M→4）
+                    int rate = totalLen / (1024 * 1024);
+
+                    // 仅当倍数 >1 且原超时时间为正数时，才按比例放大超时时间
+                    if (rate > 1 && originalTimeout > 0) {
+                        int newTimeout = originalTimeout * rate;
+                        this.socket.setSoTimeout(newTimeout);
+                        timeoutModified = true;   // 标记已修改，以便 finally 中恢复
+                    }
+                }
+
+                // 响应解析（无论是否调整超时，都正常执行）
+                bb = syncRead(syncSend(bb));
+
+            } catch (SocketException e) {
+                throw new SydApiException("socket 状态错误", -5, e);
+            } finally {
+                // 仅当超时时间被实际修改过时才恢复原值
+                if (timeoutModified) {
+                    try {
+                        this.socket.setSoTimeout(originalTimeout);
+                    } catch (SocketException e) {
+                        // 恢复失败时可根据需要记录日志，此处忽略
+                    }
+                }
+            }
         }
 
         bb.flip();
@@ -6966,9 +7001,10 @@ public class SydApi4j implements SydApi {
             int isLast = bb.get();
             byte[] dataLenArr = new byte[2];
             bb.get(dataLenArr);
-            int dataLen = ByteUtil.bytesToInt(dataLenArr, ByteOrder.BIG_ENDIAN);
+            int dataLen = Short.toUnsignedInt(ByteUtil.bytesToShort(dataLenArr, ByteOrder.BIG_ENDIAN));
 //            byte[] data = new byte[dataLen];
 //            bb.get(data);
+            // 从返回数据中创建密文切片，此时不拷贝数据。
             ByteBuffer slice = ByteBufferUtil.sliceAndConsume(bb, dataLen);
             return new MutiReturn7(retCode, isLast, slice);
         } else {
@@ -6989,19 +7025,19 @@ public class SydApi4j implements SydApi {
         ParamChecker.checkNotNull(privateKey, "privateKey");
         ParamChecker.checkNotNull(pCipherData, "pCipherData");
 
-        final int CHUNK_SIZE = 63 * 1024; // 63 KB，与加密保持一致
+        final int CHUNK_SIZE = 62 * 1024; // 62 KB，与加密保持一致
         int dataLen = pCipherData.length;
         int offset = 0;
 
         // 1. 分块传入密文
         while (offset < dataLen) {
             int len = Math.min(CHUNK_SIZE, dataLen - offset);
-            SYD_SM2Decrypt(1, privateKey, ByteBuffer.wrap(pCipherData, offset, len), offset);
+            SYD_SM2Decrypt(1, privateKey, ByteBuffer.wrap(pCipherData, offset, len), offset, len, 0);
             offset += len;
         }
 
         // 2. 传入私钥，触发解密处理
-        SYD_SM2Decrypt(2, privateKey, null, 0);
+        SYD_SM2Decrypt(2, privateKey, null, 0, 0, dataLen);
 
         // 3. 分块取回明文
         int idx = 0;
@@ -7010,7 +7046,7 @@ public class SydApi4j implements SydApi {
         int isLast = 0;
 
         while (isLast != 1) {
-            MutiReturn7 ret = SYD_SM2Decrypt(3, null, null, idx);
+            MutiReturn7 ret = SYD_SM2Decrypt(3, null, null, idx, 0, 0);
             ByteBuffer bb = ret.getData();
             isLast = ret.getIsLast();
 
@@ -7042,7 +7078,7 @@ public class SydApi4j implements SydApi {
      * @param idx 偏移量索引
      * @return MutiReturn7 包含返回码、isLast标志及数据片
      */
-    private MutiReturn7 SYD_SM2Decrypt(int dataType, byte[] privateKey, ByteBuffer pCipherData, int idx) {
+    private MutiReturn7 SYD_SM2Decrypt(int dataType, byte[] privateKey, ByteBuffer pCipherData, int idx, int inLen, int totalLen) {
         ParamChecker.checkInRange(dataType, "dataType", 1, 3);
 
         // 估算缓存大小
@@ -7059,16 +7095,17 @@ public class SydApi4j implements SydApi {
         bb.put((byte) dataType);
 
         if (dataType == 2) {                 // 私钥
+            bb.put("999999999999999999999999999".getBytes());
             bb.put(ByteUtil.shortToBytes((short) privateKey.length, ByteOrder.BIG_ENDIAN));
             bb.put(privateKey);
         }
         if (dataType == 1) {                 // 密文块
-            bb.put(ByteUtil.shortToBytes((short) pCipherData.limit(), ByteOrder.BIG_ENDIAN));
+            bb.put( com.sunyard.util.BytesUtil.unsignedShortToBytes(inLen, ByteOrder.BIG_ENDIAN) );
             bb.put(pCipherData);
             bb.put(ByteUtil.intToBytes(idx, ByteOrder.BIG_ENDIAN));
         }
         if (dataType == 3) {                 // 请求明文块
-            bb.put(ByteUtil.shortToBytes((short) (63 * 1024), ByteOrder.BIG_ENDIAN));
+            bb.put(ByteUtil.shortToBytes((short) (62 * 1024), ByteOrder.BIG_ENDIAN));
             bb.put(ByteUtil.intToBytes(idx, ByteOrder.BIG_ENDIAN));
         }
 
@@ -7079,7 +7116,41 @@ public class SydApi4j implements SydApi {
 
         // 通信
         synchronized (this) {
-            bb = syncRead(syncSend(bb));
+            int originalTimeout = -1;
+            boolean timeoutModified = false;
+
+            try {
+                // 仅当 dataType == 2 时才执行超时时间调整逻辑
+                if (false && dataType == 2) {
+                    // 获取当前 Socket 超时时间（毫秒），可能为 -1（无限等待）或 0（立即超时）
+                    originalTimeout = this.socket.getSoTimeout();
+
+                    // 计算 totalLen 是 1MB 的多少倍（整数倍，如 2M→2，3M→3，4M→4）
+                    int rate = totalLen / (1024 * 1024);
+
+                    // 仅当倍数 >1 且原超时时间为正数时，才按比例放大超时时间
+                    if (rate > 1 && originalTimeout > 0) {
+                        int newTimeout = originalTimeout * rate;
+                        this.socket.setSoTimeout(newTimeout);
+                        timeoutModified = true;   // 标记已修改，以便 finally 中恢复
+                    }
+                }
+
+                // 响应解析（无论是否调整超时，都正常执行）
+                bb = syncRead(syncSend(bb));
+
+            } catch (SocketException e) {
+                throw new SydApiException("socket 状态错误", -5, e);
+            } finally {
+                // 仅当超时时间被实际修改过时才恢复原值
+                if (timeoutModified) {
+                    try {
+                        this.socket.setSoTimeout(originalTimeout);
+                    } catch (SocketException e) {
+                        // 恢复失败时可根据需要记录日志，此处忽略
+                    }
+                }
+            }
         }
 
         bb.flip();
@@ -7096,7 +7167,7 @@ public class SydApi4j implements SydApi {
             int isLast = bb.get();
             byte[] dataLenArr = new byte[2];
             bb.get(dataLenArr);
-            int dataLen = ByteUtil.bytesToInt(dataLenArr, ByteOrder.BIG_ENDIAN);
+            int dataLen = Short.toUnsignedInt(ByteUtil.bytesToShort(dataLenArr, ByteOrder.BIG_ENDIAN));
             ByteBuffer slice = ByteBufferUtil.sliceAndConsume(bb, dataLen);
             return new MutiReturn7(retCode, isLast, slice);
         } else {
@@ -7104,6 +7175,149 @@ public class SydApi4j implements SydApi {
         }
     }
 
+    /**
+     * SM2 加密（支持大包分段）- 带时间统计
+     * @param publicKey 公钥字节数组
+     * @param pOrgData 明文数据
+     * @param timeStats 时间统计对象（输出参数）
+     * @return 加密后的密文
+     */
+    public byte[] SYD_SM2Encrypt(byte[] publicKey, byte[] pOrgData, TimeStats timeStats){
+        ParamChecker.checkNotNull(publicKey, "publicKey");
+        ParamChecker.checkNotNull(pOrgData, "pOrgData");
+
+        final int CHUNK_SIZE = 62 * 1024; // 62 KB
+        int dataLen = pOrgData.length;
+        int offset = 0;
+        long sendStartTime = System.currentTimeMillis();
+        int sendCount = 0;
+
+        while (offset < dataLen) {
+            int len = Math.min(CHUNK_SIZE, dataLen - offset);
+            SYD_SM2Encrypt(1, publicKey, ByteBuffer.wrap(pOrgData, offset, len), offset, len, dataLen);
+            offset += len;
+            sendCount++;
+        }
+        long sendEndTime = System.currentTimeMillis();
+
+        long computeStartTime = System.currentTimeMillis();
+        SYD_SM2Encrypt(2, publicKey, null, 0, 0, dataLen);
+        long computeEndTime = System.currentTimeMillis();
+
+        long receiveStartTime = System.currentTimeMillis();
+        int idx = 0;
+        List<ByteBuffer> chunks = new ArrayList<>();
+        int totalLen = 0;
+        int isLast = 0;
+        int receiveCount = 0;
+
+        while (isLast != 1) {
+            MutiReturn7 ret = SYD_SM2Encrypt(3, null, null, idx, 0, 0);
+            ByteBuffer bb = ret.getData();
+            isLast = ret.getIsLast();
+
+            if (bb != null && bb.remaining() > 0) {
+                int remaining = bb.remaining();
+                chunks.add(bb);
+                totalLen += remaining;
+                idx += remaining;
+                receiveCount++;
+            } else if (isLast != 1) {
+                throw new RuntimeException("Empty chunk with isLast=0");
+            }
+        }
+        long receiveEndTime = System.currentTimeMillis();
+
+        byte[] result = new byte[totalLen];
+        int offset2 = 0;
+        for (ByteBuffer chunk : chunks) {
+            int len = chunk.remaining();
+            chunk.get(result, offset2, len);
+            offset2 += len;
+        }
+
+        if (timeStats != null) {
+            timeStats.setSendTime(sendEndTime - sendStartTime);
+            timeStats.setComputeTime(computeEndTime - computeStartTime);
+            timeStats.setReceiveTime(receiveEndTime - receiveStartTime);
+            timeStats.setSendCount(sendCount);
+            timeStats.setReceiveCount(receiveCount);
+        }
+
+        return result;
+    }
+
+    /**
+     * SM2 解密（支持大包分段）- 带时间统计
+     * @param privateKey 私钥字节数组
+     * @param pCipherData 密文数据
+     * @param timeStats 时间统计对象（输出参数）
+     * @return 解密后的明文
+     */
+    public byte[] SYD_SM2Decrypt(byte[] privateKey, byte[] pCipherData, TimeStats timeStats) {
+        ParamChecker.checkNotNull(privateKey, "privateKey");
+        ParamChecker.checkNotNull(pCipherData, "pCipherData");
+
+        final int CHUNK_SIZE = 62 * 1024; // 62 KB，与加密保持一致
+        int dataLen = pCipherData.length;
+        int offset = 0;
+        long sendStartTime = System.currentTimeMillis();
+        int sendCount = 0;
+
+        while (offset < dataLen) {
+            int len = Math.min(CHUNK_SIZE, dataLen - offset);
+            SYD_SM2Decrypt(1, privateKey, ByteBuffer.wrap(pCipherData, offset, len), offset, len, 0);
+            offset += len;
+            sendCount++;
+        }
+        long sendEndTime = System.currentTimeMillis();
+
+        long computeStartTime = System.currentTimeMillis();
+        SYD_SM2Decrypt(2, privateKey, null, 0, 0, dataLen);
+        long computeEndTime = System.currentTimeMillis();
+
+        long receiveStartTime = System.currentTimeMillis();
+        int idx = 0;
+        List<ByteBuffer> chunks = new ArrayList<>();
+        int totalLen = 0;
+        int isLast = 0;
+        int receiveCount = 0;
+
+        while (isLast != 1) {
+            MutiReturn7 ret = SYD_SM2Decrypt(3, null, null, idx, 0, 0);
+            ByteBuffer bb = ret.getData();
+            isLast = ret.getIsLast();
+
+            if (bb != null && bb.remaining() > 0) {
+                chunks.add(bb);
+                totalLen += bb.remaining();
+                idx += bb.remaining();
+                receiveCount++;
+            } else if (isLast != 1) {
+                throw new RuntimeException("Empty plain chunk with isLast=0");
+            }
+        }
+        long receiveEndTime = System.currentTimeMillis();
+
+        byte[] result = new byte[totalLen];
+        int offset2 = 0;
+        for (ByteBuffer chunk : chunks) {
+            int len = chunk.remaining();
+            chunk.get(result, offset2, len);
+            offset2 += len;
+        }
+
+        if (timeStats != null) {
+            timeStats.setSendTime(sendEndTime - sendStartTime);
+            timeStats.setComputeTime(computeEndTime - computeStartTime);
+            timeStats.setReceiveTime(receiveEndTime - receiveStartTime);
+            timeStats.setSendCount(sendCount);
+            timeStats.setReceiveCount(receiveCount);
+        }
+
+        return result;
+    }
+
 
     @Override
     public String SM2Encrypt(byte[] publicKey, byte[] pOrgData) {
@@ -7531,7 +7745,7 @@ public class SydApi4j implements SydApi {
 
         // 填充数据
         PacketSN sn = PacketSN.gen();
-        final int packLen = 4064; // 2048
+        final int packLen = 8192; //4064  // 2048
         int loop = msg.length / packLen;
         if (msg.length % packLen > 0) {
             loop++;
@@ -7587,7 +7801,7 @@ public class SydApi4j implements SydApi {
             }
 
 
-            ByteBuffer bb = ByteBuffer.allocate(4 * 1024 + 128);
+            ByteBuffer bb = ByteBuffer.allocate(10 * 1024 );
 
             byte[] ret = new byte[2];
             bb.put(ret);

src/test/java/cmbpoc/FunctionTest.java

@@ -16,7 +16,10 @@ public class FunctionTest {
     private byte[] publicKey4Sign;
     private byte[] privateKey4Ende;
     private byte[] publicKey4Ende;
-    private byte[] orgData = new byte[15];
+    private byte[] orgData = new byte[1024];
+    private byte[] orgData2K = new byte[ 2 * 1024 ];
+    private byte[] orgData2M = new byte[ 2 * 1024 * 1024 ];
+    private byte[] orgData10M = new byte[ 10 * 1024 * 1024 ];
     private String sign;
 
     @Before
@@ -26,7 +29,7 @@ public class FunctionTest {
         System.setProperty("com.sunyard.sydapi4j.debug", "true");
 
         // 建立链接（单台）
-        this.api = (SydApi4j) new SydApi4j().connect("192.168.100.145", 8889, null, 5000);
+        this.api = (SydApi4j) new SydApi4j().connect("192.168.100.145", 8889, null, 30000);
 
 //        RetWrap keypair = this.getPrivateKeyAndPublickKey(keypairIndex4Sign);
 //        this.publicKey4Sign = Util.hexString2Bytes( keypair.get("pk").toString() );
@@ -36,7 +39,9 @@ public class FunctionTest {
 //        this.publicKey4Ende = Util.hexString2Bytes( keypair4Ende.get("pk").toString() );
 //        this.privateKey4Ende = Util.hexString2Bytes( keypair4Ende.get("sk").toString() );
 
-
+        // 使用预置密钥对
+        this.publicKey4Sign = Util.hexString2Bytes( "034200046508BC4FE965BEB1D57715C180135FC861FDC6527E82E7FD7A6CA25E7CE9CE75101181D7E2CDD16C1974652B38A045465C7FFBAC700E49F949AE5F4C57AEBEAA" );
+        this.privateKey4Sign = Util.hexString2Bytes( "00010000CF945DAFF49B9F3AB67A23E1E1BA700FF1F78F5DFFCBB518FD1303A51DABA6FC0000000000000000000000000000000000000000000000000000000000000000" );
         this.publicKey4Ende = Util.hexString2Bytes("03420004AF3D4E55D26564C6C937E6EA9232691C01AC5E7916AD2136F788CE7C1E4D0AE8C4754DEC2F7F6A78962D51A171A6F5B4F11823390AEC8B5B0246CD2CCF8052B7");
         this.privateKey4Ende = Util.hexString2Bytes("00010000963F7C3A98B7810F52D2861A060E18A9D4D59796CF33967DD61EEDA091E1AD9B0000000000000000000000000000000000000000000000000000000000000000");
     }
@@ -90,8 +95,23 @@ public class FunctionTest {
 
     @Test
     public void SYD_SM2_Sign(){
-        String sign = this.api.SYD_SM2_Sign_HA(1, privateKey4Sign, publicKey4Sign, orgData);
-        this.api.SYD_SM2_Verify_HA(1, publicKey4Sign, orgData, sign);
+        String sign = this.api.SYD_SM2_Sign_HA( SydApi.DATA_HASH, privateKey4Sign, publicKey4Sign,  orgData);
+        this.api.SYD_SM2_Verify_HA(SydApi.DATA_HASH, publicKey4Sign, orgData, sign);
+    }
+
+
+    @Test
+    public void SYD_SM2_Sign_2M(){
+        String sign = this.api.SYD_SM2_Sign_HA( SydApi.DATA_HASH, privateKey4Sign, publicKey4Sign,  orgData2M);
+        this.api.SYD_SM2_Verify_HA(SydApi.DATA_HASH, publicKey4Sign, orgData2M, sign);
+    }
+
+
+
+    @Test
+    public void SYD_SM2_Sign_10M(){
+        String sign = this.api.SYD_SM2_Sign_HA( SydApi.DATA_HASH, privateKey4Sign, publicKey4Sign,  orgData10M);
+        this.api.SYD_SM2_Verify_HA(SydApi.DATA_HASH, publicKey4Sign, orgData10M, sign);
     }
 
 
@@ -99,8 +119,36 @@ public class FunctionTest {
     @Test
     public void SYD_SM2_Encrypt(){
         byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData);
-//        byte[] deData = this.api.SYD_SM2Decrypt(publicKey4Ende, enData);
-//        Assert.assertArrayEquals(enData, deData);
+        System.out.println("密文=" + Util.bytes2HexString(enData));
+        byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+        Assert.assertArrayEquals(orgData, deData);
+    }
+
+
+    @Test
+    public void SYD_SM2_Encrypt_2K(){
+        byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2K);
+        System.out.println("密文=" + Util.bytes2HexString(enData));
+        byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+        Assert.assertArrayEquals(orgData2K, deData);
+    }
+
+
+    @Test
+    public void SYD_SM2_Encrypt_2M(){
+        byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2M);
+        System.out.println("密文长度=" + enData.length);
+        byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+        Assert.assertArrayEquals(orgData2M, deData);
+    }
+
+
+    @Test
+    public void SYD_SM2_Encrypt_10M(){
+        byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData10M);
+        System.out.println("密文=" + Util.bytes2HexString(enData));
+        byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+        Assert.assertArrayEquals(orgData10M, deData);
     }
 }
 

src/test/java/cmbpoc/JmeterTest.java

@@ -1,35 +1,105 @@
 package cmbpoc;
 
 
+import com.sunyard.SydApi;
+import com.sunyard.proto.Util;
 import org.apache.jmeter.config.Arguments;
 import org.apache.jmeter.protocol.java.sampler.AbstractJavaSamplerClient;
 import org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
 import org.apache.jmeter.samplers.SampleResult;
+import racal.sunyard.main.SydApi4j;
+
+import java.util.Random;
 
 
 public class JmeterTest extends AbstractJavaSamplerClient {
 
     private byte[] publicKey;
     private byte[] plainData;
+    private byte[] encryptedData;
+    private String sign;
     private int sleep = 1;
 
+    private byte[] privateKey4Sign;
+    private byte[] publicKey4Sign;
+    private byte[] privateKey4Ende;
+    private byte[] publicKey4Ende;
+
+    private String ip ;
+    private int port;
+    private int timeout;
+    private String ip2 ;
+
+    private ThreadLocal<SydApi4j> api;
+
     @Override
     public Arguments getDefaultParameters() {
         Arguments params = new Arguments();
         params.addArgument("function", "sleep");
         params.addArgument("sleep", "1");
+        params.addArgument("plainDataLen", "1024");
+        params.addArgument("publicKey4Ende", "", "加密用的公钥");
+        params.addArgument("privateKey4Ende", "", "解密用的公钥");
+        params.addArgument("publicKey4Sign", "", "验签用的公钥");
+        params.addArgument("privateKey4Sign", "", "签名用的公钥");
+        params.addArgument("ip", "192.168.100.145");
+        params.addArgument("ip2", "172.1.41.96");
+        params.addArgument("port", "8889");
+        params.addArgument("timeout", "3000");
         return params;
     }
 
     @Override
     public void setupTest(JavaSamplerContext context) {
+        // 签名密钥对
+        String publicKey4Sign = context.getParameter("publicKey4Sign");
+        if ( null != publicKey4Sign && !publicKey4Sign.isEmpty()) {
+            this.publicKey4Sign = Util.hexString2Bytes(publicKey4Sign);
+        }
+        String privateKey4Sign = context.getParameter("privateKey4Sign");
+        if ( null != privateKey4Sign && !privateKey4Sign.isEmpty()) {
+            this.privateKey4Sign = Util.hexString2Bytes(privateKey4Sign);
+        }
+
+        // 加密密钥对
+        String publicKey4Ende = context.getParameter("publicKey4Ende");
+        if ( null != publicKey4Ende && !publicKey4Ende.isEmpty()) {
+            this.publicKey4Ende = Util.hexString2Bytes(publicKey4Ende);
+        }
+        String privateKey4Ende = context.getParameter("privateKey4Ende");
+        if ( null != privateKey4Ende && !privateKey4Ende.isEmpty()) {
+            this.privateKey4Ende = Util.hexString2Bytes(privateKey4Ende);
+        }
+
+        // 原始数据
+        int plainDataLen = context.getIntParameter("plainDataLen");
+        plainData = new byte[plainDataLen];
+        new Random().nextBytes(plainData);
+        System.out.println("原始数据长度:" + plainDataLen);
+
         // 校准测试
         sleep = context.getIntParameter("sleep", 1);
 
+        // api
+        ip = context.getParameter("ip");
+        ip2 = context.getParameter("ip2");
+        port = context.getIntParameter("port");
+        timeout = context.getIntParameter("timeout");
+        api = new ThreadLocal<SydApi4j>() {
+            @Override
+            public SydApi4j initialValue() {
+                return (SydApi4j) new SydApi4j().connect(ip, port, null, timeout);
+            }
+        };
+
         // 线程开始时准备解密、验签数据
         String function = context.getParameter("function");
         switch (function) {
-            case "SYD_SM2_Sign":
+            case "SYD_SM2_Decrypt":
+                this.encryptedData = this.api.get().SYD_SM2Encrypt(this.publicKey4Ende, this.plainData);
+                break;
+            case "SYD_SM2_Verify":
+                this.sign = this.api.get().SYD_SM2_Sign_HA(SydApi.DATA_HASH, this.privateKey4Sign,  this.publicKey4Sign, this.plainData);
                 break;
             default:
                 break;
@@ -46,7 +116,17 @@ public class JmeterTest extends AbstractJavaSamplerClient {
         result.sampleStart();  // 开始计时
         try {
             switch (function) {
+                case "SYD_SM2_Encrypt":
+                    this.api.get().SYD_SM2Encrypt(publicKey4Ende, this.plainData);
+                    break;
+                case "SYD_SM2_Decrypt":
+                    this.api.get().SYD_SM2Decrypt(privateKey4Ende, this.encryptedData);
+                    break;
                 case "SYD_SM2_Sign":
+                    this.api.get().SYD_SM2_Sign_HA(SydApi.DATA_HASH, privateKey4Sign, publicKey4Sign, this.plainData);
+                    break;
+                case "SYD_SM2_Verify":
+                    this.api.get().SYD_SM2_Verify_HA(SydApi.DATA_HASH, publicKey4Sign, this.plainData, this.sign);
                     break;
                 case "sleep":
                     Thread.sleep( this.sleep );

src/test/java/cmbpoc/JmeterTestTest.java

@@ -0,0 +1,51 @@
+package cmbpoc;
+
+import org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
+
+
+import org.apache.jmeter.config.Arguments;
+import org.apache.jmeter.protocol.java.sampler.JavaSamplerContext;
+import org.apache.jmeter.samplers.SampleResult;
+
+public class JmeterTestTest {
+
+    public static void main(String[] args) {
+        // 1. 创建 JMeter 参数集，并填入您提供的所有参数
+        Arguments jmeterArgs = new Arguments();
+        jmeterArgs.addArgument("function", "SYD_SM2_Encrypt");
+        jmeterArgs.addArgument("sleep", "1");
+        jmeterArgs.addArgument("plainDataLen", "2048");
+        jmeterArgs.addArgument("publicKey4Ende", "03420004AF3D4E55D26564C6C937E6EA9232691C01AC5E7916AD2136F788CE7C1E4D0AE8C4754DEC2F7F6A78962D51A171A6F5B4F11823390AEC8B5B0246CD2CCF8052B7");
+        jmeterArgs.addArgument("privateKey4Ende", "00010000963F7C3A98B7810F52D2861A060E18A9D4D59796CF33967DD61EEDA091E1AD9B0000000000000000000000000000000000000000000000000000000000000000");
+        jmeterArgs.addArgument("ip", "192.168.100.145");
+        jmeterArgs.addArgument("ip2", "172.1.41.96");
+        jmeterArgs.addArgument("port", "8889");
+        jmeterArgs.addArgument("timeout", "3000");
+
+        // 2. 基于参数集创建 JMeter 上下文对象
+        JavaSamplerContext context = new JavaSamplerContext(jmeterArgs);
+
+        // 3. 创建您的测试类实例
+        JmeterTest jmeterTest = new JmeterTest();
+
+        try {
+            // 4. 模拟 JMeter 执行周期：setup -> run -> teardown
+            jmeterTest.setupTest(context);
+
+            SampleResult result = jmeterTest.runTest(context);
+            if (result != null) {
+                System.out.println("SampleResult 状态: " + result.getResponseCode());
+                System.out.println("响应数据: " + result.getResponseDataAsString());
+                System.out.println("是否成功: " + result.isSuccessful());
+            } else {
+                System.out.println("runTest 返回 null，请检查实现逻辑");
+            }
+
+            jmeterTest.teardownTest(context);
+
+        } catch (Exception e) {
+            System.err.println("执行测试时发生异常:");
+            e.printStackTrace();
+        }
+    }
+}

src/test/java/cmbpoc/PerformanceTest.java

@@ -0,0 +1,186 @@
+package cmbpoc;
+
+import com.sunyard.RetWrap;
+import com.sunyard.SydApi;
+import com.sunyard.entity.TimeStats;
+import com.sunyard.proto.Util;
+import org.junit.*;
+import racal.sunyard.main.SydApi4j;
+
+public class PerformanceTest {
+
+    private SydApi4j api;
+    private byte[] privateKey4Ende;
+    private byte[] publicKey4Ende;
+    private byte[] orgData2K = new byte[2 * 1024];
+    private byte[] orgData2M = new byte[2 * 1024 * 1024];
+    private byte[] orgData10M = new byte[10 * 1024 * 1024];
+    private static final int TEST_ROUNDS = 10;
+
+    @Before
+    public void start() {
+        System.setProperty("com.sunyard.sydapi4j.debug", "false");
+        String ip = System.getProperty("ip", "192.168.100.145");
+        System.out.println("ip=" + ip);
+        this.api = (SydApi4j) new SydApi4j().connect(ip, 8889, null, 30000);
+        this.publicKey4Ende = Util.hexString2Bytes("03420004AF3D4E55D26564C6C937E6EA9232691C01AC5E7916AD2136F788CE7C1E4D0AE8C4754DEC2F7F6A78962D51A171A6F5B4F11823390AEC8B5B0246CD2CCF8052B7");
+        this.privateKey4Ende = Util.hexString2Bytes("00010000963F7C3A98B7810F52D2861A060E18A9D4D59796CF33967DD61EEDA091E1AD9B0000000000000000000000000000000000000000000000000000000000000000");
+    }
+
+    @After
+    public void stop() {
+        if (null != api) {
+            this.api.disconnect();
+            this.api = null;
+        }
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_2K() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 2K Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2K);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData2K, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (2.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (2.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 2KB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_2M() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 2M Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2M);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData2M, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (2048.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (2048.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 2MB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_10M() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 10M Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData10M);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData10M, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (10240.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (10240.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 10MB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_TimeStats_2M() {
+        System.out.println("=== SYD_SM2_Encrypt Time Statistics Test - 2M Data ===");
+        
+        // 预热
+        for (int i = 0; i < 2; i++) {
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2M);
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+        }
+        
+        // 正式测试
+        TimeStats encryptStats = new TimeStats();
+        TimeStats decryptStats = new TimeStats();
+        
+        byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2M, encryptStats);
+        byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData, decryptStats);
+        
+        Assert.assertArrayEquals(orgData2M, deData);
+        
+        System.out.println("\n--- 加密阶段时间统计 ---");
+        System.out.printf("发送阶段: %d ms (%.1f%%), 发送次数: %d%n", 
+            encryptStats.getSendTime(), encryptStats.getSendPercentage(), encryptStats.getSendCount());
+        System.out.printf("计算阶段: %d ms (%.1f%%)%n", 
+            encryptStats.getComputeTime(), encryptStats.getComputePercentage());
+        System.out.printf("接收阶段: %d ms (%.1f%%), 接收次数: %d%n", 
+            encryptStats.getReceiveTime(), encryptStats.getReceivePercentage(), encryptStats.getReceiveCount());
+        System.out.printf("加密总耗时: %d ms%n", encryptStats.getTotalTime());
+        
+        System.out.println("\n--- 解密阶段时间统计 ---");
+        System.out.printf("发送阶段: %d ms (%.1f%%), 发送次数: %d%n", 
+            decryptStats.getSendTime(), decryptStats.getSendPercentage(), decryptStats.getSendCount());
+        System.out.printf("计算阶段: %d ms (%.1f%%)%n", 
+            decryptStats.getComputeTime(), decryptStats.getComputePercentage());
+        System.out.printf("接收阶段: %d ms (%.1f%%), 接收次数: %d%n", 
+            decryptStats.getReceiveTime(), decryptStats.getReceivePercentage(), decryptStats.getReceiveCount());
+        System.out.printf("解密总耗时: %d ms%n", decryptStats.getTotalTime());
+        
+        System.out.println("\n--- 汇总 ---");
+        long totalTime = encryptStats.getTotalTime() + decryptStats.getTotalTime();
+        System.out.printf("加密解密总耗时: %d ms%n", totalTime);
+        System.out.printf("加密吞吐量: %.2f KB/s%n", (2048.0 / encryptStats.getTotalTime()) * 1000);
+        System.out.printf("解密吞吐量: %.2f KB/s%n", (2048.0 / decryptStats.getTotalTime()) * 1000);
+    }
+}