QuantumGate is a peer-to-peer (P2P) communications protocol, library and API written in C++.

Getting errors like below

Severity	Code	Description	Project	File	Line	Suppression State
Error	LNK2019	unresolved external symbol _inflateInit_@12 referenced in function "public: static bool const __cdecl QuantumGate::Implementation::Compression::ZlibStreams::Decompress(enum std::byte *,unsigned int &,class QuantumGate::Implementation::Memory::BufferView const &)" (?Decompress@ZlibStreams@Compression@Implementation@QuantumGate@@SA?B_NPAW4byte@std@@AAIABVBufferView@Memory@34@@Z)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _inflateEnd@4 referenced in function "public: void __thiscall <lambda_15208b9786da0bdb63571e938c20c530>::operator()(void)const " (??R<lambda_15208b9786da0bdb63571e938c20c530>@@QBEXXZ)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _inflate@8 referenced in function "public: static bool const __cdecl QuantumGate::Implementation::Compression::ZlibStreams::Decompress(enum std::byte *,unsigned int &,class QuantumGate::Implementation::Memory::BufferView const &)" (?Decompress@ZlibStreams@Compression@Implementation@QuantumGate@@SA?B_NPAW4byte@std@@AAIABVBufferView@Memory@34@@Z)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _deflateInit_@16 referenced in function "public: static bool const __cdecl QuantumGate::Implementation::Compression::ZlibStreams::Compress(enum std::byte *,unsigned int &,class QuantumGate::Implementation::Memory::BufferView const &)" (?Compress@ZlibStreams@Compression@Implementation@QuantumGate@@SA?B_NPAW4byte@std@@AAIABVBufferView@Memory@34@@Z)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _deflateEnd@4 referenced in function "public: void __thiscall <lambda_d0a06043170a546814590c54b4a9b3c6>::operator()(void)const " (??R<lambda_d0a06043170a546814590c54b4a9b3c6>@@QBEXXZ)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _deflate@8 referenced in function "public: static bool const __cdecl QuantumGate::Implementation::Compression::ZlibStreams::Compress(enum std::byte *,unsigned int &,class QuantumGate::Implementation::Memory::BufferView const &)" (?Compress@ZlibStreams@Compression@Implementation@QuantumGate@@SA?B_NPAW4byte@std@@AAIABVBufferView@Memory@34@@Z)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK2019	unresolved external symbol _compressBound@4 referenced in function "bool const __cdecl QuantumGate::Implementation::Compression::Compress(class QuantumGate::Implementation::Memory::BufferView const &,class QuantumGate::Implementation::Memory::BufferImpl<class QuantumGate::Implementation::Memory::PoolAllocator<enum std::byte> > &,enum QuantumGate::Algorithm::Compression)" (?Compress@Compression@Implementation@QuantumGate@@YA?B_NABVBufferView@Memory@23@AAV?$BufferImpl@V?$PoolAllocator@W4byte@std@@@Memory@Implementation@QuantumGate@@@523@W41Algorithm@3@@Z)	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Examples\QuantumGateConsole\QuantumGate32D.lib(Compression.obj)	1	
Error	LNK1120	7 unresolved externals	QuantumGateConsole	F:\Project\ProjectNet\QuantumGate\Build\Win32\Debug\QuantumGateConsoleExample.exe	1	

This error is coming when trying to run CmdMess or QuantumGateConsole error,

similar error was throwing while building QuantumGateLib project by changing output type to lib from different options and adding zlibwapi.dll and zlibwapi.lib files solved it , but the lib produced in turn throwing same error.

Seems it has to do with zlibwapi i.e ZLIB_WINAPI macro as I read in some posts.

Please help fixing this issue.

Hello, for the last two afternoons I've been trying to get QuantumGate up and running but had no luck. I get these errors and can't make much sense of them, my only idea is that openssl nowadays has split its libraries into libcrypto and libssl. These errors all seem to mean that the SSL part of openssl isn't found in the library but I have no clue how to fix this. I am using the most current version of OpenSSL, downloaded and compiled (with Configure: VC-WIN64A no-asm no-shared no-idea, for some reason it would not compile without these settings) today.

Hello,

I have recently come across your QuantumGate project and it looks extremely interesting for possible use in some work that I am trying to get off the ground.

With that in mind, I am wondering if it has been tested for large scaling and, if so, then I was also wondering what the latency was at those scales?

My project involves many thousands (perhaps more) of concurrent P2P nodes across the Internet and I am looking for a base P2P framework that might be a good starting place to build for extremely huge number of connections.

Any thoughts?

While experimenting with QuantumGate, i have run into a road block with the examples. I am unable to establish an over internet connection. with any example projects including TestApp. I am able to use for intranet.

Listenermanager startup successful Extendermanager starting... Extendermanager startup successful QuantumGate startup successful [13/02/2019 04:29:13] Connecting to peer [ipv6 or ipv4 address]:9090 [13/02/2019 04:29:13] Socket error for peer 0.0.0.0:0 (LUID xxxxxxxxxxxxxxxxxx) (system : 10051 : A socket operation was attempted to an unreachable network.) [13/02/2019 04:29:13] Disconnecting from endpoint 0.0.0.0:0 (LUID xxxxxxxxxxxxxxxxxxxxxxxxxxxx) [13/02/2019 04:29:13] Could not connect to peer LUID xxxxxxxxxxxxxxxxxxxxxx (system : 10051 : A socket operation was attempted to an unreachable network.

Here's the setup: I have two Machines, each computer is in a different location, one with an IPv6 address and the other with IPv4 address from the ISP's and the respective LAN addresses for each.

Please advise

When I run the CMDMess on 2 different machines I am able to connect the two machines. But when I do send UUID_of_remote "hello" it throws exception Exception thrown at 0x528E175F (ucrtbased.dll) in CmdMess.exe: 0xC0000005: Access violation reading location 0x00000001.

Is it due to auto m_Extender = std::make_shared<TestExtender::Extender>(nullptr); being nullptr

I have all the libraries working well. This is we try to run in Debug/Release 32 mode and I have changed UUID at line params.UUID.Set of one machine so that two of them dont have same UUID

Hello,

I was reading the Overview documentation and it says:

.
.

...developers will be able to create extenders that can run on top of QuantumGate, which will provide various services on the network. In 2017 the decision was made to also allow developers in the short term to integrate QuantumGate directly into their own applications (instead of it running separately) and make it available as a library and API.
.
.
.

Is the design still the same in that QuantumGate is now a library that is compiled independently into each "extender" application?

It seems that the original idea was to have the QuantumGate P2P network and then have the extender applications compile to run on top of the P2P network. This would have actually been a great idea if QG was set up a VPN points using WireGuard or other such that the user would start up their P2P VPN node and then it would connect into the QuantumGate mesh network.

Then the users could easily build other extender applications (chat, email, etc.) that could just be started on the user nodes and communicate via the P2P VPN.

Now it seems that each application will effectively have its own QuantumGate P2P mesh that is independent from other QuantumGate P2P meshes that are running on a particular node.

Is this about correct? Cheers,

Hi,

I'm working on https://github.com/SentryPeer/SentryPeer and wondered if you've been working on any WAN discovery or bootstrapping techniques?

Some chat here - https://github.com/zeromq/zyre/issues/701

Thanks, Gavin.

CryptGenRandom is deprecated, see details at the top of article: https://docs.microsoft.com/en-us/windows/win32/api/wincrypt/nf-wincrypt-cryptgenrandom

Recomendation use bcrypt methods instead.

This easy should be rewritten...

bool HandshakeExtender::GetRandomBytes(std::byte* buffer, const std::size_t buffer_len)
{
  auto success = false;

  HCRYPTPROV ctx{ 0 };
  if (CryptAcquireContext(&ctx, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
  {
    if (CryptGenRandom(ctx, static_cast<DWORD>(buffer_len), reinterpret_cast<BYTE*>(buffer)))
    {
      success = true;
    }

    CryptReleaseContext(ctx, 0);
  }

  return success;
}

...like this:

#include <windows.h>
#include <bcrypt.h>
bool HandshakeExtender::GetRandomBytes(std::byte* buffer, const std::size_t buffer_size)
{
   NTSTATUS status = BCryptGenRandom(
        NULL,                           // Alg Handle pointer; NUll is passed as BCRYPT_USE_SYSTEM_PREFERRED_RNG flag is used
        buffer,                         // Address of the buffer that recieves the random number(s)
        buffer_size,                     // Size of the buffer in bytes
        BCRYPT_USE_SYSTEM_PREFERRED_RNG // Flags
    );

  return status < 0;
}

pcg_random library in QuantumGateLib\Common\Random.h - unreferenced dependency. Should add it into readme in dependency list.

monocypher library in Examples/QuantumGateExtenderHandshake/HandshakeExtender.cpp - unreferenced dependency. I see that is only example, but this is still should be noted in readme in dependency list section.

While reading code I decide that this:

  using BufferView = BufferSpanImpl<true>;
  using BufferSpan = BufferSpanImpl<false>;

is similar to this:

using BufferView = const Buffer&;
using BufferSpan = Buffer&;

If I not mistaken then I think Span and View is redundant and should be replaced as I noticed.

When I see the code, I already see that it is implementation of something. Namespace "Implementation" gives nothing to me. So I think this is redundant and should be removed.

Let's open the class view pane in MVSC and look into QuantumGateLib: there 3 namespaces in global scope: Algorithm, API and Implementation.

So if the algorithms are separate, then what kind of implementation then inside of Implementation namespace.

But even if you put the algorithms inside, then why. After all, it is already clear that inside the algorithms there is an implementation of algorithms. Why a separate implementation namespace is not clear

Hello,

I was reading over the QuantumGate documents and it mentioned an extender called QuantumGateDFS.

Do you have this somewhere or a version of it, even Alpha, so that I can look into filesharing across the QuantunGate?

Thanks

Hello,

I am working out the designs for a type of online gaming system for many users and will be using QuantumGate as the core network system.

To this end, the idea is to have QG Extenders integrated into the game servers. In this regard, there might, for example, be 5 servers in a cluster for Game-A and another cluster of machines, say 3 for example, for Game-B, and so on.

I am wondering if there would be any type of advantage to have all of the machines for Game-A, or Game-B and so one for that matter, clustered into their own QuantumGate network as extenders where a multicast message could be easily sent and received by just to machines on that QG network instance?

Or, is it better to work towards having specific but different extenders for the machine in each cluster group. For example, Game-A would all have similar extenders so that the Game-B machine does not get those messages, etc. for the Game-B and Game-C machines.

I think that my basic question is if it is better to have a single QuantumGate network with each cluster of machines having specific related extenders, or is it better to think about how to set up a QuantumGate network instance for tach cluster type (i.e. QG-A, QG-B, QG-C, etc.)

What would be more efficient?

Also, there "could" come a time when a machine on the Game-A cluster, might need to send a message to Game-B, or Game-C servers, and vice versa.

Mostly just playing with ideas to see what may, or may not, be efficient in working with Quantum Gate. Thanks

Hello and I hope that your day is going well.

I have just downloaded the QG Binaries in the Release section

https://github.com/kareldonk/QuantumGate/releases

In that file there is:

CmdMess.exe QuantumGateConsoleExample.exe QuantumGateExtenderExample.exe QuantumGateExtenderHandShakeExample.exe QuantumGateStartupExample.exe TestApp64.exe

(plus some libraries).

After downloading, and not finding any available documentation for what each one does, I started up the "QuantumGateStartupExample" which seems to be the actual QG Mesh Network and then also started "CmdMess" which seems to be an interactive messaging system.

Please correct me if I am wrong about those 2 above.

What I am wondering is, if there is any documentation to show what is needed to be started for the QG core network and what runs on top of it.

Maybe some documentation or information on what each one does and how to use them would be very useful.

What I am doing now, is to evaluate QG since I think that it might be useful for a new project that I am working on which is strikingly different than the previous project that I was considering QG for use in that work.

Any clarification on these example projects and the core app needed to start up QG across multiple nodes would be greatly helpful.

Thanks in advance