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Download Developer Edition of CryptoSys PQC

Developer's Licence. Allows full incorporation into your applications for distribution to third parties world wide. The Developer Edition works on all modern Windows platforms and replaces the Trial Edition.

File Details | How to Install | x64 Build | Support

Enter your details below and click on the Download button to receive your licensed copy of CryptoSys PQC

Your Licence Code is in the Your license code for CryptoSys PQC email you should have received when you registered with us. It consists of 14 characters of the form:

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Your licence Code is PQxxxxxxxxxxxx
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Not registered? Go to Register for CryptoSys PQC and register to receive a License Code (it's free).

Download conditions

You agree to the terms of the Developer Licence Agreement.

File Details

The zip file to be downloaded is 597 kB . The latest core DLL file version is 1.0.x.0, dated 23 May 2025.

There are separate core DLLs for Win32 and X64 platforms, which will be installed in the correct directories on your developer machine by the install program. The CrSysPQC Reference Files folder contains copies diCrPQC.dll.win32.copy and diCrPQC.dll.X64.copy.

The .NET library is compiled for both Win32 and X64 platforms and targets .NET 4.0 and above; that is, VS2010+.

How to Install

Save the file to your hard drive, unzip it, and double-click on install.exe (and perhaps read the instructions in readme.txt :-). On setup, the latest version of the Developer Edition of the DLL will be installed on your system and will overwrite any existing version. You need to have administrator rights when installing on your own developer machine. There are instructions included on how to distribute to your users (see the file distrib.txt). Do not distribute this install file or your Licence ID to your end users.

Can't download?

If you cannot download the file, please contact us and quote your Licence Code or registered email address.

x64 Build

The install program includes an alternative core DLL compiled for 64-bit machines. It should install both the 32-bit and 64-bit core DLLs in the correct Windows system folders. Windows will automatically select the correct DLL for the platform of the application you are running. For more information see using on a 64-bit system.

Support

For support, please send us a message. Tell us what programming language you are using, the exact error message you get and, if necessary, a short snippet of code where the error occurs.

We will gladly respond to "quick" technical support questions via email. You can usually expect a reply within 48 hours. We reserve the right to charge for our time for more detailed programming issues or for problems not caused by our software.

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This page last updated 25 May 2025

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