If you have built software and want to protect it from unauthorized copying, cracking, or use without payment — DoCrack’s engineering team can design and implement a professional licensing and copy-protection system tailored to your application.
With over 20 years of hands-on reverse engineering experience, we know exactly what methods attackers use to bypass software protection — and we apply that same knowledge to build systems that are genuinely resistant to them.
💬 Want to discuss protecting your software? → Message us on Telegram — free initial assessment, no commitment required
Why Software Protection Matters
Unprotected software is trivially copied, redistributed, or cracked. For developers and software companies, this means direct revenue loss, reduced product value, and damage to brand reputation. A well-designed licensing system needs to achieve several goals simultaneously:
- Prevent unauthorized use without a valid license
- Control how many users or machines can run the software concurrently
- Support trial versions with time-based or feature-based limitations
- Accommodate different business models: perpetual, subscription, or volume licensing
- Resist the most common reverse engineering and cracking techniques
The critical advantage DoCrack brings to this work is perspective: our team spends as much time breaking protection systems as building them. We know which approaches fail under real attack conditions and which ones hold up — and we design accordingly.
Software Protection Methods
The right approach depends on your software type, business model, and required security level. Our team has practical implementation experience across all of the following:
| Method | Description | Best suited for |
|---|---|---|
| Serial License Key | Unique keys generated by a cryptographic algorithm that the software validates locally at runtime | Simple to mid-complexity desktop applications |
| Online Activation | Software contacts your server during activation and ties the license to a specific machine or user account | Commercial software with internet-connected users |
| License File | A digitally signed file containing the user’s entitlements, validated by the software without requiring an internet connection | Enterprise and industrial software operating offline |
| Hardware Fingerprinting | License is cryptographically bound to specific hardware identifiers (CPU ID, MAC address, HDD serial) making it non-transferable | High-security single-seat applications |
| Hardware Dongle | A dedicated USB device that must be connected at runtime — the highest level of physical security protection | High-value industrial, medical, and engineering software |
| Trial / Time Limits | Software stops functioning after a defined period (e.g., 30 days) or a set number of launches | Trial versions and freemium models |
| Feature Gating | Sections of the software are locked and only unlock upon license purchase, enabling freemium or tiered pricing | SaaS-style desktop apps and freemium products |
| Code Obfuscation | Source or binary obfuscation to make reverse engineering significantly harder — typically layered on top of other methods | All software types as an additional security layer |
💬 Not sure which protection method fits your software? → Ask us on Telegram — consultation is free
Licensing SDKs We Work With
Rather than building a licensing system from scratch, industry-standard SDKs provide battle-tested security foundations. Our team has direct implementation experience with the following:
- LexActivator (Cryptlex): One of the most widely used modern licensing SDKs, supporting online activation, offline activation, and floating licenses across Windows, macOS, and Linux
- Sentinel RMS / LDK (Thales): Enterprise-grade licensing system with support for HASP dongles, network licensing, and large-scale deployment
- Protection PLUS 5 (Applied Concepts): Licensing SDK with advanced fingerprinting capabilities and strong cryptographic validation
- CodeMeter (WIBU-Systems): High-security combined hardware dongle and software licensing platform, widely used in industrial automation and CAD/CAM software
- Custom licensing system: Full design and implementation of a bespoke licensing architecture tailored to your specific technical and business requirements
What DoCrack Delivers
We provide a complete range of software protection services:
- Consulting and method selection: Analysis of your software, business model, and target audience to recommend the optimal protection approach or combination of methods
- Licensing system implementation: Integration of a chosen SDK into your existing codebase, or full design and build of a custom system from the ground up
- Key generation algorithm design: Building cryptographically robust serial key generation and validation algorithms resistant to keygen development
- License management panel: Design of an admin dashboard for issuing, revoking, and monitoring active licenses across your customer base
- Obfuscation and anti-debug: Application of code obfuscation and anti-reverse-engineering techniques targeting tools like x64dbg, dnSpy, Ghidra, and IDA Pro
- Penetration testing of your protection: Attacking your licensing system with the same tools and mindset a real cracker would use, to identify and fix weaknesses before release
- Upgrading existing protection: Analysing and replacing a weak or already-cracked licensing system in your current software with a more robust solution
How the Process Works
- Free initial assessment: Share your software details — programming language, platform, business model, and target security level. We review the options and propose a suitable approach.
- Technical proposal and pricing: We provide a detailed technical plan covering the proposed architecture, chosen SDK or custom approach, implementation timeline, and exact pricing — before any work begins.
- Implementation: Our engineering team implements the licensing system. If source code access is required, we work under NDA with secure file transfer protocols.
- Penetration testing and delivery: The completed system is tested against real reverse engineering tools to verify its resistance. Final code and full documentation are then delivered.
- Post-delivery support: If a new cracking method emerges or you need to update the protection system for a new software version, we provide ongoing support.
Pricing
Pricing varies per project based on the following factors:
- Programming language and platform: .NET, Java, and Python applications require different approaches compared to native C++ or Delphi applications
- Chosen SDK or approach: Commercial SDKs carry their own licensing costs in addition to our implementation fee
- System complexity: A simple serial key validator versus a full system with license management panel, floating license support, and usage reporting
- Obfuscation scope: Code obfuscation can be added as a separate service layer on top of the core licensing implementation
To get an exact price, describe your project and we will respond with a clear proposal. The initial consultation is completely free.
💬 Get an exact quote for your project → Message us on Telegram — no upfront payment, no commitment
Frequently Asked Questions
Is any software protection system truly uncrackable?
No — given enough time and resources, any protection system can eventually be broken. The realistic goal is to raise the cost of cracking high enough that it is not economically worthwhile. We are transparent about the resistance level each proposed solution provides and the trade-offs involved. We will never oversell a system’s security.
Do I need to pay separately for commercial SDK licenses?
Yes — SDKs like LexActivator or Sentinel LDK carry their own licensing fees independent of our implementation cost. During the initial consultation we compare both free and commercial options so you can make an informed decision based on your budget and requirements.
Do you need access to my full source code?
In most cases, yes. However, we can work under a formal NDA and use encrypted file transfer. In some scenarios — such as binary-level obfuscation — source code access is not required at all. We will clarify what is needed during the initial assessment.
My current protection has already been cracked. Can you fix it?
Yes — this is one of the most common requests we receive. We first analyze the weakness in the existing system, then design and implement a replacement or supplementary protection layer. We can also advise on whether a patch is sufficient or a full redesign is warranted.
What programming languages do you support?
Our team has direct experience with .NET (C#, VB.NET), C++, Delphi, Java, Python, and several other languages. If your application uses a less common stack, contact us — the chances of us being able to help are still high.
Related Services
- Software Crack & Keygen Service — removing license restrictions from commercial software
- Hardware Dongle Emulation — for software protected by a physical USB dongle
- License Restriction Removal — bypassing feature or time-based limitations
- Software Modification & Patching — changing software behavior or adding custom features
Software Licensing & DRM Design — Free Consultation
Pricing depends on your language, platform, and required protection level.
Describe your project and we will respond with a clear technical proposal.
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20+ years experience
Specialists who both crack and protect software
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Penetration testing included
We attack your system before handing it over
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Full confidentiality
Your source code is handled with strict security protocols
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✈ Request a consultation on Telegram
Usually reply within a few hours — free consultation, no upfront payment