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Need piracy protection expert for .net project
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IT & Programming > Software Application

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The client has made the following changes to the job.

Description
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Job canceled.

Jun 14, 2012
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Job Description

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  • Posted: Tue, Jun 05, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:
    Anywhere

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    The client prefers freelancers from
    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: $1,000 - $5,000
  • Fixed Price Job
  • Elance Escrow Protection
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I have an app created in .net (desktop app) that has been cracked many times. I need someone to secure it. We have a monthly charge for the software, and username/password validation happens server side currently but we are flexible on everything.

Currently the way it's being cracked is that the server side validation is simply being bypassed when the desktop app loads.

The best solution that we have to this problem is the following:

Create a C++ loader that downloads an encrypted package after user authentication from our website - then dynamically compiles it on the fly and injects it into the exe.

If cracker doesn't know the keys to decrypt the chunked package to save it statically on the machine + change the routine to load it locally they will have no chance of cracking it.

If you have other suggestions please put them forward before bidding so we can discuss them. But trust me, we've tried MANY things and they've all been cracked, so the solution above seems to be the be...

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Desired Skills
.NET Framework
Job ID: 31025553
 
Proposals
Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

 Ukraine
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1
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 0.0   |  Private   |  0 Jobs
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Proposal SEALED

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INVITED
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 0.0   |  $0 Earnings   |  0 Jobs
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Proposal SEALED

Robert Johnson      
Robert Johnson's identity has been verified.  Learn More
 United States  |  
I have been working as a professional software developer since 1996. During that time I have worked on dozens of projects using many languages and...
2
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 0.0   |  $0 Earnings   |  0 Jobs   |  3 verified credential(s)
Bid ID: 31055408  |  Submitted: Jun 6, 2012 16:55 ET 
Proposal SEALED

 Georgia  |  
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8
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Proposal SEALED

Classic Informatics Private L...      
One or more team members at  are verified.  Learn More
 India  |  
Classic Informatics Private Limited is a global web and mobile agency providing development and consultancy solutions to SMEs, enterprises and...
10
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 4.7   |  $286,529 Earnings   |  88 Jobs   |  5 verified credential(s)
Bid ID: 31049906  |  Submitted: Jun 6, 2012 13:16 ET 
Proposal SEALED

 China
EZ Software is one of the leading IT development company situated at Changchun, Jilin China, and has developed numerous large scale software such...
6
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 0.0   |  Private   |  0 Jobs
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Proposal SEALED

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1
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Bid ID: 31036712  |  Submitted: Jun 6, 2012 02:53 ET 
Proposal SEALED

Tianbo Zheng      
Tianbo Zheng's identity has been verified.  Learn More
 China  |  
.Net/Win32/WinRT/Window Phone 8.X Assembly/C++/C#/SQL/JavaScript HTML/ASP.NET/MVC Communications/MIS(General)/OS/Trading(Stock/Forex)
6
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 5.0   |  Private   |  13 Jobs
Bid ID: 31033409  |  Submitted: Jun 5, 2012 23:45 ET 
Proposal SEALED

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4
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 5.0   |  Private   |  4 Jobs
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Proposal SEALED

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7
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 5.0   |  Private   |  1 Jobs
Bid ID: 31028428  |  Submitted: Jun 5, 2012 17:28 ET 
Proposal SEALED

 Pakistan  |  
INVITED
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11
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 5.0   |  Private   |  32 Jobs
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Proposal SEALED

 Serbia  |  
INVITED
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12
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 4.9   |  Private   |  45 Jobs   |  1 verified credential(s)
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Proposal SEALED
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