License your software and stay in control
qPapel Auth brings encrypted license validation, hardware locking, remote settings and real-time control together in one system.
- Key exchange
- X25519
- Server signature
- Ed25519
- Encryption
- ChaCha20-Poly1305
- SDK
- C++ for Windows x64
For software developers
Selling software is only complete when it is used by the people who paid for it. qPapel Auth is a licensing and authentication system you can integrate into your software in minutes. Every connection is encrypted with modern cryptography, every license runs on the rules you choose, and you manage every user from your dashboard in real time.
DemoApp.exe
Starting
LicensePAPEL-7F3K-91XA
HWID9F2C·A41E·07BD
Sessionopening…
X25519 · ChaCha20-Poly1305
Ed25519-signed response
qPapel Auth
server
- Server signature verified
- License active
- Bound to this HWID
Remote settings
sent after validation
- max_threads8
- update_channel"stable"
- welcome_text"Licensed to Calista"
Tamper detection
per case
- Debugger attachedAllowClose appBan
- Inline hookAllowClose appBan
- Virtual machineAllowClose appBan
Features
Licensing and control in one system. Encryption, license rules, hardware locks and remote settings.
End-to-end encrypted communication
Every message between your software and the server is protected with X25519 key exchange, Ed25519 server signatures and ChaCha20-Poly1305 encryption. The server signature stops fake servers and man-in-the-middle attacks.
Flexible license types
Time-based licenses by the day or the hour, starting at first use; single-use and multi-use keys; licenses that only run at set hours of the day; and demo keys. Generate key formats randomly, from the username or from your own template.
Hardware locking (HWID)
Bind a license to the computer it is first used on, so shared keys don't work. Reset the hardware lock from the dashboard or the API when needed.
Instant control
Freeze licenses, ban them with a reason, add time and run bulk actions. All of it works from the dashboard, the API and the Discord and Telegram bots.
Remote settings, strings and files
Keep your software's settings, sensitive strings and files on the server. Your software receives them at runtime, and only with a valid license. Change its behaviour without shipping a new version.
Machine tracking
See the computers using each license, with their change history. Ban a specific computer entirely.
Tamper detection
Code integrity changes, debuggers, inline hooks, virtual machine indicators and blocked processes are detected. For each case, choose to allow it, close the application or ban.
Ready-made SDK
Integrate in minutes with the C++ SDK for Windows x64: a header, a static library and a DLL.
Fully integrated with your store
Every product sold from your PapelShip store automatically creates a real qPapel license. The license on a refunded order can be banned automatically.
How it works
Three steps to get started.
- 01
Create your product
Define a product for your software in the dashboard and download the SDK.
- 02
Integrate
Add the SDK to your software and start validating licenses.
- 03
Sell and manage
Licenses are created from your store, by resellers or from the dashboard. Manage your users in real time.
Keep exploring
Products, docs and guides. Where to next.
- ProductqPapel AuthSoftware licensing and anti-tamper protection.
- ProductqPAnalyzerDetection of reverse-engineering tools on users' machines.
- DocsqPapel Auth SDKInstall the SDK and validate your first license.
- DocsqPapel API referenceManage licenses from your own systems.
- GuideHow to sell software licenses online: store, checkout, automatic key delivery and HWID activationSell software licenses online end to end: choose a license model, set up a store and checkout, deliver keys automatically and activate them with HWID locking.
- GuideWhat is HWID locking? Hardware-bound licenses for C++ and C# softwareHWID locking ties a license key to one machine. How hardware fingerprints work, why the check must happen on the server, and how to handle resets fairly.
- GuideC++ authentication for licensed software: how a secure licensing flow worksHow secure C++ authentication works: key exchange, encrypted and signed traffic, server-side license and HWID checks, integrity checks and server-side data.
