#PrivateNetworkSIM

HKCARD 5G SIM for German Campusnetze: Writable SUCI & pySim Support

 HKCARD is the leading OEM SIM Supplier for German Private 5G Campus Networks. Our Writable Programmable SIMs support SUCI_CALC_INFO, 5GS3GPPLOCI, and are compatible with pySim, Osmocom, and sysmoUSIM.

german-private-5g-sim-suci-pysim-osmocom

 HKCARD: OEM SIM Supplier for German Private 5G Campus Networks (Campusnetze)

As Germany’s Industrie 4.0 revolution accelerates, the deployment of private, secure, and flexible Private 5G Campus Networks has become paramount. Standard MNO SIMs lack the granular control required for this new paradigm. HKCARD ELECTRONICS CO.,LIMITED addresses this critical gap, providing advanced Writable Programmable SIM cards specifically engineered for the German and European R&D and enterprise markets.

We offer full compatibility with the Open Source SIM ecosystem (Osmocom, pySim, sysmoUSIM) and enable the direct programming of essential 5G Standalone (SA) parameters, including SUCI Calculation Information.

 Unlocking 5G SA Functionality: Writable SUCI & UAC Parameters

For 5G network architects and security researchers, access to the low-level file system (EF) of a SIM is non-negotiable. HKCARD’s Writable Programmable SIM cards provide unprecedented access, allowing engineers to write, modify, and test critical 5G parameters directly. This is essential for integrating with private 5G cores and validating network behavior.

Our SIM Programming Software and SIM Personalize Tools enable full control over the following 5G-specific Elementary Files:

5G Parameter (EF Name)HKCARD Writable SIM Capability & Use Case
SUCI_CALC_INFO✅ Fully Writable. Program the home network public key, protection scheme, and routing indicator. Essential for testing SUPI concealment, 5G security, and validating the Unified Data Management (UDM) function.
UAC_AIC✅ Fully Writable. Configure Access Identity Control and Access Categories. Allows for testing network slicing, priority access, and Unified Access Control (UAC) behavior under different load conditions.
SUPI_NAI✅ Fully Writable. Define the Subscriber Permanent Identifier as a Network Access Identifier. Crucial for testing non-3GPP access (e.g., Wi-Fi integration) and roaming scenarios.
5GS3GPPLOCI✅ Fully Writable. Program the last known 5GS location information for 3GPP access. Allows engineers to simulate mobility events and test network registration efficiency without physical movement.
5GSN3GPPLOCI✅ Fully Writable. Program the last known 5GS location information for non-3GPP access, vital for validating access network selection and mobility policies.

This level of granular control is essential for security research, validating 5G core network functions, and ensuring seamless integration within a German Campusnetz environment.

Seamless Integration with pySim, Osmocom & European R&D Tools

The European and German R&D communities thrive on open standards and powerful open-source tools. HKCARD engineers its SIMs to be a trusted component within this ecosystem.

  • HKCARD Open Source SIM cards compatible with Osmocom, pySim, and sysmoUSIM: Our hardware is tested and validated to work out-of-the-box with the entire Osmocom toolchain.
  • Full pySim and pySim-prog Support: Use your favorite Python-based tools to read, write, and manage our SIMs. You can directly script the programming of SUCI_CALC_INFO or UAC_AIC parameters, enabling automated testing and validation workflows.
  • Ideal for Lab & Research: This compatibility makes HKCARD the top choice for universities, research institutes, and corporate labs building testbeds for 5G, 6G, and IoT security.

Your Toolkit for Customization: SIM Personalize Tools & Software

To harness the full power of our Writable Programmable SIM hardware, we provide a complete software toolkit.

  • SIM Programming Software: An intuitive GUI-based application that provides direct access to the 5G Elementary Files. Engineers can easily view and modify fields like SUCI_CALC_INFO without needing to memorize complex APDU commands.
  • SIM Personalize Tools for Batch Operations: For deploying hundreds or thousands of SIMs in a Campusnetz, our batch personalization tools are indispensable. Create a master profile (including all custom 5G parameters) and flash it onto cards at high speed using a multi-slot SIM Card Programmer.

10 FAQ for German 5G Campus Network Engineers

1. Can I truly write the SUCI_CALC_INFO file on your SIMs?
Yes, absolutely. Our Writable Programmable SIMs provide full read/write access to EF_SUCICALCINFO, allowing you to define the home network public key and protection scheme for SUPI concealment testing.

2. Are these SIMs compatible with pySim-prog for scripting?
Yes. Our cards are fully compatible. You can use standard pySim-prog commands to write all 5G-specific files, making them perfect for automated test environments.

3. Are these cards suitable for a German “Campusnetz”?
Yes, this is their primary use case. They provide the flexibility needed to integrate with private 5G cores from vendors like Nokia, Ericsson, or open-source solutions like Open5GS.

4. Do you support both 5G SA and 4G/LTE fallback?
Yes. Our cards are fully provisionable for 5G SA (with files like UAC_AIC) and also support standard 4G/LTE authentication (Milenage/TUAK) for fallback and roaming scenarios.

5. What hardware do I need to program these cards?
A standard PC/SC compliant SIM Card Reader Writer is sufficient for single-card programming with our software or pySim. For batch operations, we recommend our multi-slot SIM Card Programmer.

6. Can I define a custom SUPI using the SUPI_NAI format?
Yes. The EF_SUPINAI is fully writable, allowing you to test scenarios involving non-3GPP access and custom subscriber identification schemes.

7. Do you provide technical support for German customers?
Yes, we have a dedicated technical support team experienced in the specific requirements of the European and German markets, including Private 5G deployments.

8. Are these SIMs part of your Writable SIM Card OEM program?
Yes. We can supply these advanced 5G SIMs as white-label products for integrators and solution providers to brand as their own.

9. How do your SIM Personalize Tools handle batch programming?
You create a template profile with all desired parameters (IMSI, Ki, OPc, SUCI info, etc.) and our tool applies this profile to multiple SIMs simultaneously, drastically reducing provisioning time.

10. Why should I choose HKCARD over other SIM suppliers?
Because we specialize in providing open, programmable, and technically advanced SIMs specifically for the R&D and private network market, with proven compatibility with the tools you already use (pySim, Osmocom).

 

  1. : HKCARD Writable 5G SIM for German Private Networks showing the SUCI_CALC_INFO and UAC_AIC parameters in the SIM Programming Software interface.
  2. An engineer using pySim-prog on a laptop to program a HKCARD Open Source SIM card connected via a SIM Card Reader Writer.

 

  1. The Engineer’s Guide to Writable 5G SIMs for German Campusnetze
  2. HKCARD: The OEM SIM Supplier for SUCI, UAC, and pySim Integration
  3. Unlocking Private 5G: How to Program SUCI_CALC_INFO on a Writable SIM
  4. Osmocom & pySim Compatible 5G SIMs for the European R&D Market
  5. HKCARD: Your Partner for Advanced SIM Solutions in Industrie 4.0

 

#Private5G #Campusnetz #Industrie40 #5GSA #SUCI #pySim #Osmocom #WritableSIM #SIMProgramming #HKCARD

Contact HKCARD ELECTRONICS CO.,LIMITED today to get the advanced SIM hardware your German Private 5G Campus Network requires. Move beyond limitations and innovate with full contro

 

HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com

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