// Trust
Signed reports from Sensor Monitoring, sealed photos from Photo Protection: both carry a certificate from the PKI of H&M Software-Netzwerktechnik-GmbH. This page holds the root certificate and its fingerprint — so you can compare before importing.
Placeholder
This page is deliberately provisional. The PKI is a project of its own with its own team; what the final page looks like is theirs to decide. It is here already because hmsoftware.com promises the fingerprint can also be read on mlcgo.eu — and that second source has to exist before the first certificate ships, not after.
The root key is only used on a machine without an internet connection. Each purpose has its own intermediate, so a problem never affects everything.
For anyone who wants to verify signatures outside our programs without a notice. Compare the fingerprint before importing — it is shown identically on hmsoftware.com.
SHA-256 fingerprint
not issued yet
The root certificate will be published here after the key ceremony. Until then there is nothing to do.
MLC Photo Protection
Seals photos using the open C2PA standard. With the certificate, the seal shows a verified account as the author rather than “someone”. Any later change to the image shows up.
Go to Photo Protection →MLC Sensor Monitoring
Temperature and audit reports are signed automatically — with your company’s name, with a timestamp from an independent service. The report stays verifiable even once the certificate has expired years later.
Go to Sensor Monitoring →Why we issue our own certificates, what a certificate is and what it is not, what “issuer unknown” in Acrobat means, and what we say openly about it — all of that is on the site of H&M Software-Netzwerktechnik-GmbH.
Certificates explained →