Ascom Hasler Mailing Systems, Inc.

Lorenz Frey

George M Brookner

Roman Kresina

In a postage meter system (FIG.), a user enters information,indicative of a batch of mail pieces to be franked (). The mail pieces are franked(), and when the batch is completed, data relating to the batch are made the subject of a cryptographic engine(). The data digitally signed, or a message authentication code (MAC) is derived, all in a postal security device (PSD)(). The data are communicated(), preferably by means of public-key cryptography(). These data are then made available to the postal authority in a secure way.()

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Zuchwill, Switzerland

Lorenz Frey