The Limits of Static Codes
QR and barcodes are very suitable for identification, logistics and universal access. By themselves, however, they do not prove that the code is still affixed to the original product.
Combining multiple security layers
VeriSeal can merge visible features, NTAG 424 DNA, tamper loop, scan history and server-side rules into one decision.
Die Prüfung kann kryptografische Labeldaten mit einer Sperre oder einem dokumentierten Lebenszyklusstatus verbinden. Unplausible Wiederholungen und ein passend konstruiertes Manipulationssignal ergänzen die Bewertung. Sichtbare Produktmerkmale helfen bei der Zuordnung, ersetzen aber keine technische oder fachliche Untersuchung bei einem Verdacht.
Good security must be understandable
The public display clearly separates a real cryptographic check from a mere registration. It is thus avoided that a simply read static NFC link is erroneously displayed as a complete proof of authenticity.
The need for protection determines the label
Not every product needs the same level of security. NTAG 213 may be sufficient for information and simple server allocation. For robust authentication and tamper scenarios, a profile such as NTAG 424 DNA TT is required.