diff --git a/DProto/8018.xml b/DProto/8018.xml
index e9cf04e..12f757b 100644
--- a/DProto/8018.xml
+++ b/DProto/8018.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <packet extend="base">
 	<req>
-
     <command>
         <bin>8018</bin>
     </command>
@@ -11,7 +10,7 @@
             X509证书序号
         </DN>
 
-        <dataLen len="4"  :value="dataLength()" cn="数据长度">
+        <dataLen len="2"  :value="dataLength()" cn="数据长度">
             数据长度
         </dataLen>
 
@@ -20,14 +19,12 @@
         </infoData>
 
     </data>
-
-
-
 	</req>
-	<res>
 
+
+	<res>
     <command>
-        <bin>8006</bin>
+        <bin>8019</bin>
     </command>
     <data>
         <error len="2" cn="错误码" format="X" :catch="catchError('%s')">
@@ -71,7 +68,7 @@
             </options>
         </error>
 
-        <signatureLen len="2" cn="签名的字节长度">
+        <signatureLen len="2" format="X" cn="签名的字节长度">
             签名的字节长度
         </signatureLen>
 
@@ -80,14 +77,22 @@
         </signature>
 
     </data>
-
-
-
 	</res>
-	<script>function dataLength(){
-    return $packet.data.infoData.length;
-}
-function signatureLen() {
-    return Util.a2i( $final.getSection('data').getSection('signatureLen') )
-}	</script>
+
+
+	<script>
+        <![CDATA[
+        function dataLength() {
+            def len = $packet.data.infoData.length;
+            def data = new byte[2];
+            data[0] = (byte)(len >> 8 & 0xFF)
+            data[1] = (byte)(len & 0xFF)
+
+            return data;
+        }
+        ]]>
+        function signatureLen() {
+            return Util.b2i( $final.getSection('data').getSection('signatureLen') )
+        }
+    </script>
 </packet>
\ No newline at end of file
diff --git a/DProto/8019.xml b/DProto/8019.xml
index 2f01c74..a613619 100644
--- a/DProto/8019.xml
+++ b/DProto/8019.xml
@@ -1,23 +1,18 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <packet extend="base">
 	<req>
-
     <command>
         <bin>8019</bin>
     </command>
     <data extend="data">
 
-        <DN len="256" cn="证书 DN">
-            X509证书序号
-        </DN>
-
         <dataLen len="2"  :value="dataLength()" cn="数据长度">
             已签名数据长度
         </dataLen>
 
-        <infoData cn="已签名数据">
+        <signData cn="已签名数据">
             已签名数据
-        </infoData>
+        </signData>
 
         <flag len="2" cn="标记">
             <options>
@@ -31,14 +26,12 @@
         </flag>
 
     </data>
-
-
-
 	</req>
-	<res>
 
+
+	<res>
     <command>
-        <bin>8007</bin>
+        <bin>8020</bin>
     </command>
     <data>
         <error len="2" cn="错误码" format="X" :catch="catchError('%s')">
@@ -82,11 +75,11 @@
             </options>
         </error>
 
-        <infoLen len="2" cn="信息长度">
+        <infoLen len="2" format="X" :if="0 != $packet.data.flag$option" cn="信息长度">
             信息长度
         </infoLen>
 
-        <info :len="infoLen()" cn="信息">
+        <info :len="reInfoLen()" :if="0 != $packet.data.flag$option" cn="信息">
             若发送报文返回证书信息标志位为0，则返回已签名数据,
             若发送报文返回证书信息标志位为1，则返回CERT_INFO结构的证书数据
         </info>
@@ -94,12 +87,25 @@
     </data>
 
 
-
 	</res>
-	<script>function dataLength(){
-    return $packet.data.infoData.length;
-}
-function infoLen() {
-    return Util.a2i( $final.data.infoLen )
-}	</script>
+	<script>
+        <![CDATA[
+        function dataLength() {
+            def len = $packet.data.signData.length;
+            def data = new byte[2];
+            data[0] = (byte)(len >> 8 & 0xFF)
+            data[1] = (byte)(len & 0xFF)
+
+            return data;
+        }
+        ]]>
+
+        function reInfoLen() {
+            if (null == $final.data.infoLen){
+            return 0;
+            }
+
+            return Util.b2i( $final.getSection('data').getSection('infoLen') )
+        }
+    </script>
 </packet>
\ No newline at end of file
diff --git a/doc/java接口说明文档.docx b/doc/java接口说明文档.docx
index be1c127..307f873 100644
Binary files a/doc/java接口说明文档.docx and b/doc/java接口说明文档.docx differ
diff --git a/src/main/java/com/sunyard/inf/SydSVApi.java b/src/main/java/com/sunyard/inf/SydSVApi.java
index a74c5ec..ed87360 100644
--- a/src/main/java/com/sunyard/inf/SydSVApi.java
+++ b/src/main/java/com/sunyard/inf/SydSVApi.java
@@ -167,6 +167,28 @@ interface SydAttachedSVApi {
             byte[] orgData,
             String sign
     );
+
+    /**
+     * 带公钥证书与原始数据的数字签名（遵循 PKCS#7）
+     * 使用指定的证书 DN，从加密设备获取对应的私钥证书，对指定的原始数据编制带公钥证书的数字签名（遵循 PKCS#7）。
+     *
+     * @param orgData 待签名数据
+     * @param sCertDN 证书DN
+     * @return
+     * 符合PKCS7标准的签名结果
+     */
+    String attachedSign(byte[] orgData, String sCertDN);
+
+    /**
+     * 带公钥证书与原始数据的数字签名验签（遵循 PKCS#7）
+     * 对指定的原始数据核验其带公钥证书签名。如签名有效（含证书无效）且需返回签名者公钥证书信息时，同时返回签名者公钥证书信息。
+     *
+     * @param sign 已签名数据
+     * @return
+     * 若发送报文返回证书信息标志位为0，则返回已签名数据,
+     * 若发送报文返回证书信息标志位为1，则返回CERT_INFO结构的证书数据
+     */
+    X509 attachedVerify(String sign);
 }
 
 
diff --git a/src/main/java/racal/sunyard/main/SydApi4j.java b/src/main/java/racal/sunyard/main/SydApi4j.java
index e9d5924..ea3af6d 100644
--- a/src/main/java/racal/sunyard/main/SydApi4j.java
+++ b/src/main/java/racal/sunyard/main/SydApi4j.java
@@ -9668,6 +9668,121 @@ public class SydApi4j implements SydApi {
     }
 
 
+    /**
+     * 带公钥证书与原始数据的数字签名（遵循 PKCS#7）
+     * 使用指定的证书 DN，从加密设备获取对应的私钥证书，对指定的原始数据编制带公钥证书的数字签名（遵循 PKCS#7）。
+     *
+     * @param orgData 待签名数据
+     * @param sCertDN 证书DN
+     * @return
+     * 符合PKCS7标准的签名结果
+     */
+    @Override
+    public String attachedSign(byte[] orgData, String sCertDN) {
+        Proto8018 proto = new Proto8018();  //pset.getProtocolReqRender("75");
+        byte[] dn = new byte[256];
+        byte[] s = null;
+        try {
+            s = sCertDN.getBytes("GBK");
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+        }
+
+        System.arraycopy(s, 0, dn, 0, s.length);
+
+        // 填充数据
+        HashMap<String, Object> packet = new HashMap<String, Object>();
+        HashMap<String, Object> data = new HashMap<String, Object>();
+        packet.put("data", data);
+        PacketSN sn = PacketSN.gen();
+        packet.put("header", sn.getSn().array());
+        data.put("DN", dn);
+        data.put("infoData", orgData);
+
+        // 渲染发送
+        ByteBuffer bb = proto.rend(packet);
+
+        synchronized (this) {
+            // 响应解析
+            bb = syncRead(syncSend(bb));
+        }
+
+        Packet p = proto.parse(bb);
+        Map<String, Object> ret = p.toMap();
+
+        if (
+                !Arrays.equals(sn.getSn().array(), ((PacketSection) ret.get("header")).getBytes())
+        ) {
+            throw new SydApiException("包序号不匹配", -4);
+        }
+        ret = (Map<String, Object>) ret.get("data");
+        PacketSection error = (PacketSection) ret.get("error");
+        byte[] be = error.getBytes();
+        if ((0 != (be[0] ^ be[1]))) {
+
+            throw new SydApiException(error.getInfo(), error.autoInt());
+        }
+
+        return ((PacketSection) ret.get("signature")).getString();
+    }
+
+    /**
+     * 带公钥证书与原始数据的数字签名验签（遵循 PKCS#7）
+     * 对指定的原始数据核验其带公钥证书签名。如签名有效（含证书无效）且需返回签名者公钥证书信息时，同时返回签名者公钥证书信息。
+     *
+     * @param sign 已签名数据
+     * @return
+     * 返回CERT_INFO结构的证书数据
+     */
+    @Override
+    public X509 attachedVerify(String sign) {
+        Proto8019 proto = new Proto8019();  //pset.getProtocolReqRender("75");
+
+        // 填充数据
+        HashMap<String, Object> packet = new HashMap<String, Object>();
+        HashMap<String, Object> data = new HashMap<String, Object>();
+        packet.put("data", data);
+        PacketSN sn = PacketSN.gen();
+        packet.put("header", sn.getSn().array());
+
+        data.put("signData", sign.getBytes());
+        data.put("flag$option", 1);
+
+        // 渲染发送
+        ByteBuffer bb = proto.rend(packet);
+
+        synchronized (this) {
+            // 响应解析
+            bb = syncRead(syncSend(bb));
+        }
+
+        Packet p = proto.parse(bb, packet);
+        Map<String, Object> ret = p.toMap();
+
+        if (
+                !Arrays.equals(sn.getSn().array(), ((PacketSection) ret.get("header")).getBytes())
+        ) {
+            throw new SydApiException("包序号不匹配", -4);
+        }
+        ret = (Map<String, Object>) ret.get("data");
+        PacketSection error = (PacketSection) ret.get("error");
+        byte[] be = error.getBytes();
+        if ((0 != (be[0] ^ be[1]))) {
+            return null;
+        }
+
+        PacketSection info = (PacketSection) ret.get("info");
+        byte[] pCertInfo = info.getBytes();
+
+        String certInfo = new String(pCertInfo);
+        int index = certInfo.indexOf("-----BEGIN CERTIFICATE-----");
+        certInfo = certInfo.substring(index);
+//        System.out.println("证书信息: " + certInfo);
+        X509 x509 = GetX509CertInfo(certInfo);
+        return x509;
+    }
+
+
     // ------------------------中移指令接口--------------------------------
 
     /**
diff --git a/src/test/java/com/sunyard/sydapi/test/TestAllMethods.java b/src/test/java/com/sunyard/sydapi/test/TestAllMethods.java
index dc0b99b..64afa2f 100644
--- a/src/test/java/com/sunyard/sydapi/test/TestAllMethods.java
+++ b/src/test/java/com/sunyard/sydapi/test/TestAllMethods.java
@@ -30,7 +30,8 @@ public class TestAllMethods {
     public void before() {
         // 通过设置debug的属性开启debug，如果不设置则默认不打开
         System.setProperty("com.sunyard.sydapi4j.debug", "true");
-        api = (SydApi4j) new SydApi4j().connect("192.168.0.66", 8889, null, 1000);
+        api = (SydApi4j) new SydApi4j().connect("61.164.40.82", 8889, null, 1000);
+//        api = (SydApi4j) new SydApi4j().connect("192.168.0.66", 8889, null, 1000);
 //        api = (SydApi4j) new SydApi4j().connect("192.168.0.100", 8889, null, 1000);
 //        api = (SydApi4j) new SydApi4j().connect("192.168.0.99", 8889, null, 1000);
 //        api = (SydApi4j) new SydApi4j().connect("172.16.17.162", 8889, null, 1000);
@@ -2088,6 +2089,20 @@ public class TestAllMethods {
         System.out.println(s);
     }
 
+    // todo: 需要测试
+    // 8018
+    @Test
+    public void testAttachedSignAndVerify() {
+        String dn = "C=CN,O=Sunyard,OU=8001,CN=8001";
+        String orgData = "111111213323143243243";
+        String sign = api.attachedSign(orgData.getBytes(), dn);
+        System.out.println("签名结果: " + sign);
+
+//        String sign = "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";
+        X509 verify = api.attachedVerify(sign);
+        System.out.println("验签结果: " + Util.bytes2HexString(verify.getPubKey()));
+    }
+
     // 00883030303030303030
     // 3938
     // 30313232