Obfuscation of .NET exe/dll [duplicate] - c#

This question already has answers here:
Closed 12 years ago.
Possible Duplicate:
.NET obfuscation of a DLL: how can I protect my code?
Hi all,
I'm using .net framework 4.0 and making any program. When i finished it, i publish it and get my programs exe.
But any 3rd party softwares decompiles my exe and anybody views my codes.
For example :
How do i save my code?
Thanks all...

You could use an obfuscation tool, like Dotfuscator or Eazfuscator.NET.
Eazfuscator.NET is free, Dotfuscator has a limited Community Edition, but is lacking many of the features available for free in the other product.
UPDATE
Eazfuscator.NET is now commercial. This link provides a download link for the last free version and lists some alternatives (as of September 2012)

Related

how using GPU from c# code to compress bitmap [duplicate]

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I am trying to get more processing power out of my grid.
I am using all cpus/cores, is it possible to utilize the GPU with C#.
Anyone know any libraries or got any sample code?
[Edit OCT 2017 as even this answer gets quite old]
Most of these answers are quite old, so I thought I'd give an updated summary of where I think each project is:
GPU.Net (TidePowerd) - I tried this 6 months ago or so, and did get it working though it took a little bit of work. Converts C# kernel code to cuda at compile time. Unfortunately their website has been down and their github hasn't been updated for a couple of years, which might indicate the project is dead....
Cudafy - Open source and very easy to use. Converts C# kernel code to cuda at runtime (with ability to serialize and cache). Can easily run the same kernel code on the CPU (mostly for debugging). Supports multiple GPUs. More examples available than others here. The boilerplate code referred to by other answers is minimal, and in my case at least helped with my understanding of how the code works. Cuda/Nvidia only though. Unfortunately, it seems that they didn't update their solutions for a couple of years too (latest commit in 2015 -- support of cuda 7.0).
Hybridizer. Commercial solution compiling C# to CUDA. Provides a free community edition on visual studio marketplace and samples on github.
AleaGPU Commercial solution with a free community edition for consumer GPUS. See Daniel's comments for details.
Brahma - runs LINQ expressions via OpenCL (so supports AMD too). Not much documentation / examples. Last update in 2011.
C$ - last development was over 10 years ago...
Microsoft Accelerator - similarly doesn't look like it is being actively developed any longer.
some others (C++ AMP, OpenTK -- dead/Cloo) - many of these are just bindings - ie enable you to call the GPU from C#, but your kernel code (code which is actually run on the GPU) needs to be written in C or OpenCL, meaning you must use (and learn) another language.
As I said, I would recommend Cudafy over all the others - if it could run on OpenCL as well as Cuda it would be perfect.
EDIT SEP 2013
Cudafy now allows you to compile for both CUDA and OpenCL, so will run the same C# code on on all GPUs. This sounds fantastic, though I haven't tested the OpenCL compiling yet.
Microsoft Research Accelerator was a .NET GP GPU library.
I found Brahma... It also has a GPGPU provider that allows methods to run on the GPU... Thanks for the question... Learnt something new today. :)
Here's another one: CUDAfy. It sounds like GPU.Net, in that something as simple as a method-attribute can cause the entire method to run on the GPU. But unlike GPU.Net, CUDAfy is free and open-source.
GPU.Net appears to require no boilerplate code, though (According to their docs, it's "injected automatically by the build-tool"), while CUDAfy does.
Here is an example of building an application with CUDAfy.
Could I recommend XNA Game Studio as a possible avenue for exploration? It is obviously geared up for writing games, but gives you managed access to your graphics card and much better access to capability enumeration functions and shader development than was previously available in, say, Managed DirectX. There are also ways of combining WinForms and XNA into hybrid applications:
http://www.ziggyware.com/news.php?readmore=866
You'll have to put some effort into learning shader programming (XNA supports HLSL), but this may be a simpler approach than learning a vendor-specific solution such as nVidia's CUDA. The advantage is that you can program in a 100% managed environment. Here are some HLSL links:
http://www.ziggyware.com/weblinks.php?cat_id=9
The GPGPU site is also a recommended destination for general purpose GPU programming:
http://gpgpu.org/
Best of luck!
How about http://www.tidepowerd.com/ GPU.NET ?
Well this is a pretty old question, and since it's been asked things have changed a lot.
Another option for using .Net to write GPU code, which no one has mentioned in answers in Alea GPU. It covers C#, F# and VB.
Professional GPU software development environment for .NET and Mono.
Truly cross-platform
In F# official site, Alea is the first option for using F# in GPGPU programming.
To get to know this framework I suggest take a look at its comprehensive list of examples.
In addition to Brahma, take a look at C$ (pronounced "C Bucks"). From their CodePlex site:
The aim of [C$] is creating a unified language and system for seamless parallel programming on modern GPU's and CPU's.
It's based on C#, evaluated lazily, and targets multiple accelerator models:
Currently the list of
intended architectures includes GPU,
Multi-core CPU, Multi-GPU (SLI,
CrossFire), and Multi-GPU + Multi-CPU
Hybrid Architecture.
There's a new Microsoft solution in town - C++ AMP (intro here).
Use from C# would be via P/Invoke, as demoed here for desktop apps, and here for (don't-call-it) Metro apps.
Edit: I should note that C++ AMP has an open specification, which means it's not necessarily just for the MS compiler, or just for Windows.
Edit: Apparently, the technology is now in "maintenance mode," meaning they're fixing bugs, but not actively developing.
If your GPUs are all the same brand, you might be able to get GPGPU support from the vendor, either through Nvidia's CUDA or ATI's Stream. AFAIK, they provide DLLs, which you could use through P/Invoke.
CenterSpace Software has GPU-powered computation in their NMath libraries you can add to C# project. It's a commercial product.
Managed DirectX somehow, might work
WPF also uses the GPU and you can add custom shaders using HLSL.
A Series on GPU-based Effects for WPF (Greg Schechter's Blog)

Debug an executable without pdb outside visual studio [duplicate]

This question already has answers here:
How to Debug .net applications without Visual Studio
(3 answers)
Closed 7 years ago.
At a remote computer I need to debug an executable which is built in release mode.
There is no Visual studio installed but the .Net framework is.
I read about windbg and remote debugging and other solutions fellow programmers suggested but the subject is vague and I don't have a complete overview of the subject and the options available for my condition.
There is a possibility i can get the .pdb file.
Edit: I know this post was marked as a duplicate. The difference with the other post is that i can not download or send large files like the Windows SDK and the computer does not have internet connectivity. As i said .net framework is installed. Where can i find mdgb??
dotPeek by JetBrains can generate PDB files for you (and act as a Symbol Server). https://confluence.jetbrains.com/display/NETCOM/Introducing+JetBrains+dotPeek#IntroducingJetBrainsdotPeek-GeneratingPDBfiles

Free WPF obfuscator / protect from reverse engineering? [duplicate]

This question already has answers here:
Closed 12 years ago.
Possible Duplicate:
Obfuscator which supports WPF properly
I am looking for a free WPF obfuscator to protect the code inside my application, which includes my API key.
I have seen Dotfuscator but as I understand the free version does not include obfuscating WPF applications.
How should I go about protecting my application from reverse engineering?
Thanks
The question has been asked around here several times before.
Have a look: https://stackoverflow.com/questions/805549/free-obfuscation-tools-for-net
Anyhow, seems Eazfuscator : http://www.gapotchenko.com/eazfuscator.net is a really good choice.
Update: Eazfuscator.NET will not obfuscate WPF XAML, to my knowledge, however I don't know a free tool that does. A paid version can though; see this http://www.preemptive.com/products/dotfuscator/compare-editions
A quick search of Google makes it look like it is not possible to entirely obfuscate a WPF application. You can obfuscate the code behind, but not the XAML.
http://windowsclient.net/blogs/rob_relyea/archive/2009/10/27/obfuscation-of-wpf-applications-status-update.aspx

Utilizing the GPU with c# [closed]

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We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations.
Closed 5 years ago.
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Original close reason(s) were not resolved
Improve this question
I am trying to get more processing power out of my grid.
I am using all cpus/cores, is it possible to utilize the GPU with C#.
Anyone know any libraries or got any sample code?
[Edit OCT 2017 as even this answer gets quite old]
Most of these answers are quite old, so I thought I'd give an updated summary of where I think each project is:
GPU.Net (TidePowerd) - I tried this 6 months ago or so, and did get it working though it took a little bit of work. Converts C# kernel code to cuda at compile time. Unfortunately their website has been down and their github hasn't been updated for a couple of years, which might indicate the project is dead....
Cudafy - Open source and very easy to use. Converts C# kernel code to cuda at runtime (with ability to serialize and cache). Can easily run the same kernel code on the CPU (mostly for debugging). Supports multiple GPUs. More examples available than others here. The boilerplate code referred to by other answers is minimal, and in my case at least helped with my understanding of how the code works. Cuda/Nvidia only though. Unfortunately, it seems that they didn't update their solutions for a couple of years too (latest commit in 2015 -- support of cuda 7.0).
Hybridizer. Commercial solution compiling C# to CUDA. Provides a free community edition on visual studio marketplace and samples on github.
AleaGPU Commercial solution with a free community edition for consumer GPUS. See Daniel's comments for details.
Brahma - runs LINQ expressions via OpenCL (so supports AMD too). Not much documentation / examples. Last update in 2011.
C$ - last development was over 10 years ago...
Microsoft Accelerator - similarly doesn't look like it is being actively developed any longer.
some others (C++ AMP, OpenTK -- dead/Cloo) - many of these are just bindings - ie enable you to call the GPU from C#, but your kernel code (code which is actually run on the GPU) needs to be written in C or OpenCL, meaning you must use (and learn) another language.
As I said, I would recommend Cudafy over all the others - if it could run on OpenCL as well as Cuda it would be perfect.
EDIT SEP 2013
Cudafy now allows you to compile for both CUDA and OpenCL, so will run the same C# code on on all GPUs. This sounds fantastic, though I haven't tested the OpenCL compiling yet.
Microsoft Research Accelerator was a .NET GP GPU library.
I found Brahma... It also has a GPGPU provider that allows methods to run on the GPU... Thanks for the question... Learnt something new today. :)
Here's another one: CUDAfy. It sounds like GPU.Net, in that something as simple as a method-attribute can cause the entire method to run on the GPU. But unlike GPU.Net, CUDAfy is free and open-source.
GPU.Net appears to require no boilerplate code, though (According to their docs, it's "injected automatically by the build-tool"), while CUDAfy does.
Here is an example of building an application with CUDAfy.
Could I recommend XNA Game Studio as a possible avenue for exploration? It is obviously geared up for writing games, but gives you managed access to your graphics card and much better access to capability enumeration functions and shader development than was previously available in, say, Managed DirectX. There are also ways of combining WinForms and XNA into hybrid applications:
http://www.ziggyware.com/news.php?readmore=866
You'll have to put some effort into learning shader programming (XNA supports HLSL), but this may be a simpler approach than learning a vendor-specific solution such as nVidia's CUDA. The advantage is that you can program in a 100% managed environment. Here are some HLSL links:
http://www.ziggyware.com/weblinks.php?cat_id=9
The GPGPU site is also a recommended destination for general purpose GPU programming:
http://gpgpu.org/
Best of luck!
How about http://www.tidepowerd.com/ GPU.NET ?
Well this is a pretty old question, and since it's been asked things have changed a lot.
Another option for using .Net to write GPU code, which no one has mentioned in answers in Alea GPU. It covers C#, F# and VB.
Professional GPU software development environment for .NET and Mono.
Truly cross-platform
In F# official site, Alea is the first option for using F# in GPGPU programming.
To get to know this framework I suggest take a look at its comprehensive list of examples.
In addition to Brahma, take a look at C$ (pronounced "C Bucks"). From their CodePlex site:
The aim of [C$] is creating a unified language and system for seamless parallel programming on modern GPU's and CPU's.
It's based on C#, evaluated lazily, and targets multiple accelerator models:
Currently the list of
intended architectures includes GPU,
Multi-core CPU, Multi-GPU (SLI,
CrossFire), and Multi-GPU + Multi-CPU
Hybrid Architecture.
There's a new Microsoft solution in town - C++ AMP (intro here).
Use from C# would be via P/Invoke, as demoed here for desktop apps, and here for (don't-call-it) Metro apps.
Edit: I should note that C++ AMP has an open specification, which means it's not necessarily just for the MS compiler, or just for Windows.
Edit: Apparently, the technology is now in "maintenance mode," meaning they're fixing bugs, but not actively developing.
If your GPUs are all the same brand, you might be able to get GPGPU support from the vendor, either through Nvidia's CUDA or ATI's Stream. AFAIK, they provide DLLs, which you could use through P/Invoke.
CenterSpace Software has GPU-powered computation in their NMath libraries you can add to C# project. It's a commercial product.
Managed DirectX somehow, might work
WPF also uses the GPU and you can add custom shaders using HLSL.
A Series on GPU-based Effects for WPF (Greg Schechter's Blog)

Looking for up-to-date eclipse plugin for C# [closed]

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We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations.
Closed 8 years ago.
Improve this question
I used to work with eclipse for nearly all the languages I need. I'm asked to work on a tool developed in C# and so, I would like to stay in the same familiar environment.
I've found the improve's plugin but its last release is from 2004 and .NET 1.1 which is quite old. Is there a newer plugin to program in C# within eclipse or am I forced to take a look at VS?
Emonic integrates mono into the eclipse framework, that may be of use.
I fear, that there is no good eclipse plug in. Try http://www.monodevelop.com/Main_Page or http://www.icsharpcode.net/OpenSource/SD/. And the free visual 2008 express editions are worth a look.
I have found below 2 articles helpful in trying to get C# Formatting in Eclipse:
C# Like format.xml
Article explaning how to change your formatting
MonoDevelop just released a Windows Beta, and it's looking very good. It's a cross platform C# IDE. It may be of use.
Emonic is worth a look as Jasper suggested. I've installed it in the past myself, but over a year ago. Checking the change logs on the site, it does not appear that they have had any new releases since then. The worst thing about it is that it does not supply a debugger or any refactoring tools. I've found that if you're going to work with Microsoft products it's best to eat the whole hog.
You will have a learning curve getting into visual studion from eclipse, but it will probably save you some time working out the nuiances with a product trying to build .NET code.
Visual Studio is a very nice environment to work in, the express editions are free so my suggestion would be to take the opportunity and have a look at the VS dev environment.

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