METHOD AND APPARATUS FOR PROTECTING THE TRANSFER OF DATA

According to one embodiment, a method for scrambling and descrambling program data comprises the receipt of a mating key generator message including a manufacturer identifier. The mating key generator message is transmitted to a first remote source identified by the manufacturer identifier. In respo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CANDELORE, Brant, L
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	According to one embodiment, a method for scrambling and descrambling program data comprises the receipt of a mating key generator message including a manufacturer identifier. The mating key generator message is transmitted to a first remote source identified by the manufacturer identifier. In response, a mating key is received from the first remote source. Then, the mating key is supplied to a second remote source, the mating key being subsequently used to encrypt a service key used for scrambling program data.