Verfahren zur gesicherten Abfrage von Lieferscheinen für Gegenstände

摘要

The method involves decrypting data generated from digital image of a receipt (30) in a portable terminal (16) with a unique key, at the level of a personal computer (14), to obtain signature associated to the image. Data generated from the unique key in the portable terminal is decrypted at the level of a data processing center (10), with a private key of the center.