Dynamically shifting control word
View Patent ↗A method for generating a plurality of control words, each control word controlling access to an object. The method includes providing a control word packet (CWP), generating a first control word (CW) from the CWP, providing a second CW generation input and producing a second CW based, at least in part, on both of the following the first CW and the second CW generation input. Control word generating apparatus for generating a plurality of control words is also disclosed.
1. A method for providing a multiple-question game, the method comprising:
providing a first scrambled question;
providing a first control word (CW) including descrambling information for descrambling the first question;
receiving, from a user, a first answer to the first question; and
producing a second CW using a control word processor, the control word processor being implemented at least partly in hardware, the second CW being based, at least in part, on both of the following:
the first CW and the first answer,
the second CW including descrambling information for descrambling a second question.
2. The method according to claim 1 and wherein at least one of the first question and the second question comprises a plurality of questions.
3. Game apparatus for providing a multiple-question game, the apparatus comprising:
a scrambled question descrambler receiving a first scrambled question and a first control word (CW) including descrambling information for descrambling the first question and operative to descramble the first question; and
a control word processor receiving, from a user, a first answer to the first question and operative to produce a second CW based, at least in part, on both of the following:
the first CW and the first answer,
the second CW including descrambling information for descrambling a second question,
the control word processor being implemented at least partly in hardware.
4. The apparatus according to claim 3 and also comprising a security subsystem, and
wherein the security subsystem comprises at least one of the following: the scrambled question descrambler; and the control word processor.
5. The apparatus according to claim 4 and wherein the security subsystem comprises a removable security element, and
the removable security element comprises at least one of the following: the scrambled question descrambler; and the control word processor.
6. The apparatus according to claim 5 and wherein the removable security element comprises a smart card.
7. Game apparatus for providing a multiple-question game, the apparatus comprising:
scrambled question descrambling means for receiving a first scrambled question and a first control word (CW) including descrambling information for descrambling the first question and operative to descramble the first question; and
a control word processor for receiving, from a user, a first answer to the first question and operative to produce a second CW based, at least in part, on both of the following:
the first CW and the first answer,
the second CW including descrambling information for descrambling a second question,
the control word processor being implemented at least partly in hardware.
8. The method according to claim 1 and wherein the control word processor comprises a removable security element.
9. The method according to claim 8 and wherein the removable security element comprises a smart card.
10. The apparatus according to claim 3 and wherein the control word processor comprises a removable security element.
11. The apparatus according to claim 10 and wherein the removable security element comprises a smart card.
12. The apparatus according to claim 7 and wherein the control word processor comprises a removable security element.
13. The apparatus according to claim 12 and wherein the removable security element comprises a smart card.