简介
大多数开发人员需要确保代码的安全性。本文将讨论MQL5软件的几种不同保护方法。本文中的所有示例都涉及EA事务,但同样的规则也适用于脚本和度量。本文将从简单的密码保护开始,然后讨论解密密钥生成器、授予给定代理帐户的权限以及时间限制保护。然后将引入远程许可服务器概念。在我上一篇关于MQL5-RPC框架的文章中,我讨论了从MetaTrader5到任何XML-RPC服务器的“远程过程调用”。
我将使用此解决方案作为远程许可证的示例。我还将讨论如何使用base64编码来增强解决方案,并提供PGP支持建议,以实现对MQL5 EA事务和指标的超安全保护。我知道MetaQuotes软件公司提供了一些选项,可以通过mql5.com市场直接授予代码许可证。这对所有开发人员都非常有益,并且不会与本文中描述的概念冲突。这两种解决方案的结合只会使保护功能更强大,更安全地抵御软件盗版。
1。密码保护
让我们从一些简单的事情开始。计算机软件保护最常见的解决方案是密码或许可证密钥保护。在安装后的第一次运行期间,将出现一个对话框,要求用户插入与软件捆绑的代码(类似于Microsoft Windows或Microsoft Office序列号),如果密码匹配,则允许用户使用单独注册的软件副本。我们可以使用输入变量或直接文本框来输入代码。下面是存根代码的一个例子。
以下代码初始化用于插入密码的ChartObjectEdit字段。有一个预定义的允许密码数组,与用户将插入的密码相匹配。在接收到chartevent_object_endedit事件后,在onchartevent()方法中检查密码。
//+------------------------------------------------------------------+ //| PasswordProtectedEA.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" #include <ChartObjects/ChartObjectsTxtControls.mqh> CChartObjectEdit password_edit; const string allowed_passwords[] = { "863H-6738725-JG76364", "145G-8927523-JG76364", "263H-7663233-JG76364" }; int password_status = -1; string password_message[] = { "WRONG PASSWORD. Trading not allowed.", "EA PASSWORD verified." }; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- password_edit.Create(0, "password_edit", 0, 10, 10, 260, 25); password_edit.BackColor(White); password_edit.BorderColor(Black); password_edit.SetInteger(OBJPROP_SELECTED, 0, true); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- password_edit.Delete(); } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if (password_status>0) { // password correct } } //+------------------------------------------------------------------+ //| ChartEvent function | //+------------------------------------------------------------------+ void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) { //--- if (id == CHARTEVENT_OBJECT_ENDEDIT && sparam == "password_edit" ) { password_status = -1; for (int i=0; i<ArraySize(allowed_passwords); i++) if (password_edit.GetString(OBJPROP_TEXT) == allowed_passwords[i]) { password_status = i; break; } if (password_status == -1) password_edit.SetString(OBJPROP_TEXT, 0, password_message[0]); else password_edit.SetString(OBJPROP_TEXT, 0, password_message[1]); } } //+------------------------------------------------------------------+
这种方法很简单,但一旦有人在互联网上发布破解的序列号,就会失去保护能力。EA作者只能发布新版本的EA事务和黑名单被盗密码。
2。密钥生成器
密钥生成器是一种机制,允许使用基于预定义规则的一系列密码。我将为下面的密钥生成器提供一个存根,让您大致了解这一点。在下面的示例中,键必须由三个由两个连字符分隔的数字组成。因此,密码允许的格式是XXXX-XXXX-XXXX。
第一个数必须能被三除,第二个数能被四除,第三个数能被五除。因此,允许的密码可能是3-4-5、18000-20000-20000或更复杂的3708-102792-2844770。
//+------------------------------------------------------------------+ //| KeyGeneratorProtectedEA.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" #include <ChartObjects/ChartObjectsTxtControls.mqh> #include <Strings/String.mqh> CChartObjectEdit password_edit; CString user_pass; const double divisor_sequence[] = { 3.0, 4.0, 5.0 }; int password_status = -1; string password_message[] = { "WRONG PASSWORD. Trading not allowed.", "EA PASSWORD verified." }; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- password_edit.Create(0, "password_edit", 0, 10, 10, 260, 25); password_edit.BackColor(White); password_edit.BorderColor(Black); password_edit.SetInteger(OBJPROP_SELECTED, 0, true); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- password_edit.Delete(); } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if (password_status==3) { // password correct } } //+------------------------------------------------------------------+ //| ChartEvent function | //+------------------------------------------------------------------+ void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) { //--- if (id == CHARTEVENT_OBJECT_ENDEDIT && sparam == "password_edit" ) { password_status = 0; user_pass.Assign(password_edit.GetString(OBJPROP_TEXT)); int hyphen_1 = user_pass.Find(0, "-"); int hyphen_2 = user_pass.FindRev("-"); if (hyphen_1 == -1 || hyphen_2 == -1 || hyphen_1 == hyphen_2) { password_edit.SetString(OBJPROP_TEXT, 0, password_message[0]); return; } ; long pass_1 = StringToInteger(user_pass.Mid(0, hyphen_1)); long pass_2 = StringToInteger(user_pass.Mid(hyphen_1 + 1, hyphen_2)); long pass_3 = StringToInteger(user_pass.Mid(hyphen_2 + 1, StringLen(user_pass.Str()))); // PrintFormat("%d : %d : %d", pass_1, pass_2, pass_3); if (MathIsValidNumber(pass_1) && MathMod((double)pass_1, divisor_sequence[0]) == 0.0) password_status++; if (MathIsValidNumber(pass_2) && MathMod((double)pass_2, divisor_sequence[1]) == 0.0) password_status++; if (MathIsValidNumber(pass_3) && MathMod((double)pass_3, divisor_sequence[2]) == 0.0) password_status++; if (password_status != 3) password_edit.SetString(OBJPROP_TEXT, 0, password_message[0]); else password_edit.SetString(OBJPROP_TEXT, 0, password_message[1]); } } //+------------------------------------------------------------------+
当然,一个数字中的位数可以设置为给定的值,计算也可以更复杂。也可以在计算中添加硬盘序列号或CPU ID,以添加仅对给定硬件有效的变量。在这种情况下,运行EA的人员必须运行由基本硬件计算的另一个生成器。
输出是密钥生成器的输入,生成的密码仅对给定硬件有效。如果有人更改计算机硬件或使用虚拟专用服务器运行EA,这种方法也会有局限性,但可以通过放弃两个或三个有效密码来解决。MQL5的细分市场就是这样。
三。单一账户许可证
由于任何给定的经纪终端的帐号都是唯一的,因此这可以用于允许在一个或一组帐号上使用EA。在这种情况下,只需使用account infostring(account_company)和account infointeger(account_login)方法获取帐户数据,并将其与预先编译的允许值进行比较即可:
//+------------------------------------------------------------------+ //| AccountProtectedEA.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" const string allowed_broker = "MetaQuotes Software Corp."; const long allowed_accounts[] = { 979890, 436290, 646490, 225690, 279260 }; int password_status = -1; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- string broker = AccountInfoString(ACCOUNT_COMPANY); long account = AccountInfoInteger(ACCOUNT_LOGIN); printf("The name of the broker = %s", broker); printf("Account number = %d", account); if (broker == allowed_broker) for (int i=0; i<ArraySize(allowed_accounts); i++) if (account == allowed_accounts[i]) { password_status = 1; Print("EA account verified"); break; } if (password_status == -1) Print("EA is not allowed to run on this account."); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if (password_status == 1) { // password correct } }
这是一种简单但功能强大的保护方法。缺点是有必要为添加到帐户数据库中的每个新帐号重新编译EA。
4。时限保护
如果许可证是临时授予的,则使用时限保护。例如,使用软件的试用版,或者每月或每年授予许可证。因此,很明显,这种保护可以应用于EA事务和指标。
第一种想法是检查服务器时间,在此基础上,让用户在给定的时间段内使用度量或EA事务。许可证到期后,许可方可以部分或全部禁用其许可功能。
//+------------------------------------------------------------------+ //| TimeLimitProtectedEA.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" datetime allowed_until = D'2012.02.11 00:00'; int password_status = -1; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- printf("This EA is valid until %s", TimeToString(allowed_until, TIME_DATE|TIME_MINUTES)); datetime now = TimeCurrent(); if (now < allowed_until) Print("EA time limit verified, EA init time : " + TimeToString(now, TIME_DATE|TIME_MINUTES)); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if (TimeCurrent() < allowed_until) { } else Print("EA expired."); }
此解决方案的唯一缺点是必须为每个被许可方分别编译它。
5。远程许可证
如果每个用户都能完全控制是禁用许可证还是延长试用期,这不是很好吗?这可以通过使用mql5-rpc调用来完成。它发送一个带有帐户名的查询,并接收一个以试用模式运行脚本或禁用该脚本的值。
为示例实现以下代码:
from SimpleXMLRPCServer import SimpleXMLRPCServer from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler class RequestHandler( SimpleXMLRPCRequestHandler ): rpc_path = ( '/RPC2', ) class RemoteLicenseExample(SimpleXMLRPCServer): def __init__(self): SimpleXMLRPCServer.__init__( self, ("192.168.2.103", 9099), requestHandler=RequestHandler, logRequests = False) self.register_introspection_functions() self.register_function( self.xmlrpc_isValid, "isValid" ) self.licenses = {} def addLicense(self, ea_name, broker_name, account_number): if ea_name in self.licenses: self.licenses[ea_name].append({ 'broker_name': broker_name, 'account_number' : account_number }) else: self.licenses[ea_name] = [ { 'broker_name': broker_name, 'account_number' : account_number } ] def listLicenses(self): print self.licenses def xmlrpc_isValid(self, ea_name, broker_name, account_number): isValidLicense = False ea_name = str(ea_name) broker_name = str(broker_name) print "Request for license", ea_name, broker_name, account_number try: account_number = int(account_number) except ValueError as error: return isValidLicense if ea_name in self.licenses: for license in self.licenses[ea_name]: if license['broker_name'] == broker_name and license['account_number'] == account_number: isValidLicense = True break print "License valid:", isValidLicense return isValidLicense if __name__ == '__main__': server = RemoteLicenseExample() server.addLicense("RemoteProtectedEA", "MetaQuotes Software Corp.", 1024221) server.addLicense("RemoteProtectedEA", "MetaQuotes Software Corp.", 1024223) server.listLicenses() server.serve_forever()
这是一个在Python中实现的简单XML-RPC服务器,具有两个预定义的MetaTrader 5许可证。这些许可证专门为运行在默认metaquotes演示服务器(access.metatrader5.com:443)上的“远程保护EA”EA事务设计,帐户分别为1024221和1024223。行业解决方案可能会利用PostgreSQL或任何其他数据库中的许可证数据库,但是上面的示例对于本文来说已经足够了,因为它可以很好地处理远程许可证。
如果您需要有关如何安装python的简要说明,请阅读mql5-rpc,从mql5:web services access中调用远程过程以获取乐趣和利润,以及XML-rpc自动事务锦标赛分析程序。
使用远程许可证的EA只需要准备对is valid()方法的远程MQL5-RPC调用,并根据许可证是否有效返回true或false布尔值。基于帐户保护的示例EA示例如下所示。
//+------------------------------------------------------------------+ //| RemoteProtectedEA.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" #include <MQL5-RPC.mqh> #include <Arrays/ArrayObj.mqh> #include <Arrays/ArrayInt.mqh> #include <Arrays/ArrayString.mqh> #include <Arrays/ArrayBool.mqh> bool license_status=false; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- /* License proxy server */ CXMLRPCServerProxy s("192.168.2.103:9099"); if(s.isConnected()==true) { CXMLRPCResult *result; /* Get account data */ string broker= AccountInfoString(ACCOUNT_COMPANY); long account = AccountInfoInteger(ACCOUNT_LOGIN); printf("The name of the broker = %s",broker); printf("Account number = %d",account); /* Get remote license status */ CArrayObj* params= new CArrayObj; CArrayString* ea = new CArrayString; CArrayString* br = new CArrayString; CArrayInt *ac=new CArrayInt; ea.Add("RemoteProtectedEA"); br.Add(broker); ac.Add((int)account); params.Add(ea); params.Add(br); params.Add(ac); CXMLRPCQuery query("isValid",params); result=s.execute(query); CArrayObj *resultArray=result.getResults(); if(resultArray!=NULL && resultArray.At(0).Type()==TYPE_BOOL) { CArrayBool *stats=resultArray.At(0); license_status=stats.At(0); } else license_status=false; if(license_status==true) printf("License valid."); else printf("License invalid."); delete params; delete result; } else Print("License server not connected."); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if(license_status==true) { // license valid } } //+------------------------------------------------------------------+
如果执行两个脚本,则可以为帐号添加远程许可证。此远程许可证还可以用作时间限制或密码许可证,用于在试用期到期后远程删除激活。例如,如果您允许某人访问EA进行为期10天的试用,如果他们对产品不满意,您可以删除许可证的激活状态;如果他们满意,您可以在任何给定的时间段内激活许可证。
6。安全许可证加密
上一段描述的思想是使用远程过程调用在许可证服务器和客户机之间交换信息。这可以通过在注册的EA副本上使用包嗅探器来破解。通过使用嗅探器程序,黑客可以捕获两台机器之间发送的所有TCP数据包。我们使用base64编码发送帐户数据来解决这个问题,并接收加密信息。
对于有经验的人,也可以使用pgp和/或将所有代码放入dll以进一步增强保护。我想到这个信息实际上会成为另一个RPC信息(比如俄罗斯嵌套的dolls),它将进一步转换为MQL5数据。
第一步是添加对MQL5-RPC的base64编码和解码支持。幸运的是,这是由Renat在metatrader 4 https://www.mql5.com/zh/code/8098上完成的,所以我只需要将其转换为mql5。
//+------------------------------------------------------------------+ //| Base64.mq4 | //| Copyright © 2006, MetaQuotes Software Corp. | //| MT5 version © 2012, Investeo.pl | //| https://www.metaquotes.net | //+------------------------------------------------------------------+ #property copyright "Copyright © 2006, MetaQuotes Software Corp." #property link "https://www.metaquotes.net" static uchar ExtBase64Encode[64]={ 'A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z', 'a','b','c','d','e','f','g','h','i','j','k','l','m', 'n','o','p','q','r','s','t','u','v','w','x','y','z', '0','1','2','3','4','5','6','7','8','9','+','/' }; static uchar ExtBase64Decode[256]={ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -2, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; void Base64Encode(string in,string &out) { int i=0,pad=0,len=StringLen(in); while(i<len) { int b3,b2,b1=StringGetCharacter(in,i); i++; if(i>=len) { b2=0; b3=0; pad=2; } else { b2=StringGetCharacter(in,i); i++; if(i>=len) { b3=0; pad=1; } else { b3=StringGetCharacter(in,i); i++; } } //---- int c1=(b1 >> 2); int c2=(((b1 & 0x3) << 4) | (b2 >> 4)); int c3=(((b2 & 0xf) << 2) | (b3 >> 6)); int c4=(b3 & 0x3f); out=out+CharToString(ExtBase64Encode[c1]); out=out+CharToString(ExtBase64Encode[c2]); switch(pad) { case 0: out=out+CharToString(ExtBase64Encode[c3]); out=out+CharToString(ExtBase64Encode[c4]); break; case 1: out=out+CharToString(ExtBase64Encode[c3]); out=out+"="; break; case 2: out=out+"=="; break; } } //---- } void Base64Decode(string in,string &out) { int i=0,len=StringLen(in); int shift=0,accum=0; while(i<len) { int value=ExtBase64Decode[StringGetCharacter(in,i)]; if(value<0 || value>63) break; accum<<=6; shift+=6; accum|=value; if(shift>=8) { shift-=8; value=accum >> shift; out=out+CharToString((uchar)(value & 0xFF)); } i++; } //---- } //+------------------------------------------------------------------+
有关base64编码描述的更多详细信息,请访问维基百科文章。
以下是对mql5 base64编码和解码脚本的示例测试:
//+------------------------------------------------------------------+ //| Base64Test.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" #include <Base64.mqh> //+------------------------------------------------------------------+ //| Script program start function | //+------------------------------------------------------------------+ void OnStart() { //--- string to_encode = "<test>Abrakadabra</test>"; string encoded; string decoded; Base64Encode(to_encode, encoded); Print(encoded); Base64Decode(encoded, decoded); Print(decoded); } //+------------------------------------------------------------------+
脚本生成以下结果。
DK 0 Base64Test (EURUSD,H1) 16:21:13 Original string: <test>Abrakadabra</test> PO 0 Base64Test (EURUSD,H1) 16:21:13 Base64 encoded string: PHRlc3Q+QWJyYWthZGFicmE8L3Rlc3Q+ FM 0 Base64Test (EURUSD,H1) 16:21:13 Base64 decoded string: <test>Abrakadabra</test>
编码的有效性可以在四行python代码中找到:
import base64 encoded = 'PHRlc3Q+QWJyYWthZGFicmE8L3Rlc3Q+' decoded = base64.b64decode(encoded) print decoded <test>Abrakadabra</test>
第二步是使用base64(也称为嵌套doll技术)加密xmlrpc结果:
import base64 from SimpleXMLRPCServer import SimpleXMLRPCServer from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler class RequestHandler( SimpleXMLRPCRequestHandler ): rpc_path = ( '/RPC2', ) class RemoteLicenseExampleBase64(SimpleXMLRPCServer): def __init__(self): SimpleXMLRPCServer.__init__( self, ("192.168.2.103", 9099), requestHandler=RequestHandler, logRequests = False) self.register_introspection_functions() self.register_function( self.xmlrpc_isValid, "isValid" ) self.licenses = {} def addLicense(self, ea_name, broker_name, account_number): if ea_name in self.licenses: self.licenses[ea_name].append({ 'broker_name': broker_name, 'account_number' : account_number }) else: self.licenses[ea_name] = [ { 'broker_name': broker_name, 'account_number' : account_number } ] def listLicenses(self): print self.licenses def xmlrpc_isValid(self, ea_name, broker_name, account_number): isValidLicense = False ea_name = str(ea_name) broker_name = str(broker_name) print "Request for license", ea_name, broker_name, account_number try: account_number = int(account_number) except ValueError as error: return isValidLicense if ea_name in self.licenses: for license in self.licenses[ea_name]: if license['broker_name'] == broker_name and license['account_number'] == account_number: isValidLicense = True break print "License valid:", isValidLicense # additional xml encoded with base64 xml_response = "<?xml version='1.0'?><methodResponse><params><param><value><boolean>%d</boolean></value></param></params></methodResponse>" retval = xml_response % int(isValidLicense) return base64.b64encode(retval) if __name__ == '__main__': server = RemoteLicenseExampleBase64() server.addLicense("RemoteProtectedEA", "MetaQuotes Software Corp.", 1024221) server.addLicense("RemoteProtectedEA", "MetaQuotes Software Corp.", 1024223) server.listLicenses() server.serve_forever()
权限加密后,我们可以使用mql5-rpc方法将解密后的信息转换回mql5数据:
//+------------------------------------------------------------------+ //| RemoteProtectedEABase64.mq5 | //| Copyright 2012, Investeo.pl | //| https://www.investeo.pl | //+------------------------------------------------------------------+ #property copyright "Copyright 2012, Investeo.pl" #property link "https://www.investeo.pl" #property version "1.00" #include <MQL5-RPC.mqh> #include <Arrays/ArrayObj.mqh> #include <Arrays/ArrayInt.mqh> #include <Arrays/ArrayString.mqh> #include <Arrays/ArrayBool.mqh> #include <Base64.mqh> bool license_status=false; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- /* License proxy server */ CXMLRPCServerProxy s("192.168.2.103:9099"); if(s.isConnected()==true) { CXMLRPCResult *result; /* Get account data */ string broker= AccountInfoString(ACCOUNT_COMPANY); long account = AccountInfoInteger(ACCOUNT_LOGIN); printf("The name of the broker = %s",broker); printf("Account number = %d",account); /* Get remote license status */ CArrayObj* params= new CArrayObj; CArrayString* ea = new CArrayString; CArrayString* br = new CArrayString; CArrayInt *ac=new CArrayInt; ea.Add("RemoteProtectedEA"); br.Add(broker); ac.Add((int)account); params.Add(ea); params.Add(br); params.Add(ac); CXMLRPCQuery query("isValid",params); result=s.execute(query); CArrayObj *resultArray=result.getResults(); if(resultArray!=NULL && resultArray.At(0).Type()==TYPE_STRING) { CArrayString *stats=resultArray.At(0); string license_encoded=stats.At(0); printf("encoded license: %s",license_encoded); string license_decoded; Base64Decode(license_encoded,license_decoded); printf("decoded license: %s",license_decoded); CXMLRPCResult license(license_decoded); resultArray=license.getResults(); CArrayBool *bstats=resultArray.At(0); license_status=bstats.At(0); } else license_status=false; if(license_status==true) printf("License valid."); else printf("License invalid."); delete params; delete result; } else Print("License server not connected."); //--- return(0); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- if(license_status==true) { // license valid } } //+------------------------------------------------------------------+
在运行RemoteLicense ExampleBase64服务器的前提下,脚本运行如下:
KI 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 The name of the broker = MetaQuotes Software Corp. GP 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 Account number = 1024223 EM 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 <?xml version='1.0'?><methodResponse><params><param><value><string>PD94bWwgdmVyc2lvbj0nMS4wJz8+PG1ldGhvZFJlc3BvbnNlPjxwYXJhbXM+PHBhcmFtPjx2YWx1ZT48Ym9vbGVhbj4xPC9ib29sZWFuPjwvdmFsdWU+PC9wYXJhbT48L3BhcmFtcz48L21ldGhvZFJlc3BvbnNlPg==</string></value></param></params></methodResponse> DG 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 encoded license: PD94bWwgdmVyc2lvbj0nMS4wJz8+PG1ldGhvZFJlc3BvbnNlPjxwYXJhbXM+PHBhcmFtPjx2YWx1ZT48Ym9vbGVhbj4xPC9ib29sZWFuPjwvdmFsdWU+PC9wYXJhbT48L3BhcmFtcz48L21ldGhvZFJlc3BvbnNlPg== FL 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 decoded license: <?xml version='1.0'?><methodResponse><params><param><value><boolean>1</boolean></value></param></params></methodResponse> QL 0 RemoteProtectedEABase64 (EURUSD,H1) 19:47:57 License valid.
如您所见,XML-RPC的有效负载包含一组XML-RPC信息,这些信息实际上是由base64加密的。这个base64编码的信息被解码成一个XML字符串,然后被解码成MQL5数据。
7。高级反编译指南
只要对MQL5代码进行反编译,即使是最强大的保护也很容易在经验丰富的逆向工程师面前被破解。在一些在线搜索之后,我发现了一个提供MQL5反编译程序的网站,但我怀疑它是一个伪造品,只是想从那些愿意窃取他人代码的天真的人那里骗取一些钱。但我没有尝试,所以可能我错了。即使该解决方案确实存在,您也需要能够通过发送加密的EA/度量输入参数或对象指数传输来实现更强的保护。
对于黑客来说,很难获得正确的受保护EA的输入参数,或者查看正确的受保护EA的输入参数(这反过来又使其无效)。如果帐户ID匹配,也可以发送正确的参数;如果帐户ID无效,也可以发送未加密的假参数。对于这个解决方案,可能有人想要使用PGP(良好的隐私)。即使代码被解压,数据也将被加密,并使用一个专用的PPG密钥发送。此外,只有帐户ID与PGP密钥匹配时,才能解密EA参数。
总结
在本文中,我讨论了保护MQL5代码的几种方法。我还通过mql5-rpc调用引入了远程许可的概念,并添加了base64编码支持。我希望本文将作为深入了解如何确保MQL5代码安全性的基础。本文包含所有源代码。
由MetaQuotes Software Corp.从英文翻译为
原文。https://www.mql5.com/en/articles/359
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