M6 block cipher system and method for encoding content and authenticating a device
First Claim
1. An M6 block cipher system, comprising:
- a rotate constant selector device selecting one or more rotate constants from a plurality of input rotate constants for output based on a selection signal input thereto,a rotate constant ordering device ordering the selected rotate constants and a common rotate constant input thereto based on a received ordering signal,an M6 core device generating one or more of an output signal, a validity signal and a round number based on the ordered rotate constants and a plurality of input signals, anda rotate constant scheduler device outputting the ordering signal to the rotate constant ordering device in response to the selection signal and the round number.
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Accused Products
Abstract
An M6 block cipher system and method for encoding content and authenticating a device may use an M6 core. The M6 block cipher system may include a rotate constant selector selecting one or more rotate constants from a plurality of input rotate constants for output based on a selection signal input thereto, a rotate constant ordering device ordering the selected rotate constants and a common rotate constant input thereto based on a received ordering signal and an M6 core generating one or more of an output signal, a validity signal and a round number based on the ordered rotate constants and a plurality of input signals. The system may include a rotate constant scheduler outputting the ordering signal to the rotate constant ordering device in response to the selection signal and the round number.
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Citations
43 Claims
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1. An M6 block cipher system, comprising:
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a rotate constant selector device selecting one or more rotate constants from a plurality of input rotate constants for output based on a selection signal input thereto, a rotate constant ordering device ordering the selected rotate constants and a common rotate constant input thereto based on a received ordering signal, an M6 core device generating one or more of an output signal, a validity signal and a round number based on the ordered rotate constants and a plurality of input signals, and a rotate constant scheduler device outputting the ordering signal to the rotate constant ordering device in response to the selection signal and the round number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An M6 block cipher system that performs a plurality of round operations in order to authenticate a device for receiving/transmitting content and encoding content, in which each of the plurality of round operations includes a plurality of sub round operations, the system comprising:
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a rotate constant selector device selecting one or more rotate constants from a plurality of input rotate constants for output based on a selection signal input thereto, a rotate constant ordering device ordering, for output, each of the selected rotate constants, a separately received common rotate constant and a separately received non-common rotate constant, in response to the rotate constant selection signal, an M6 core device generating one or more of an output signal, a validity signal, a round number and a sub round number based on the ordered rotate constants and a plurality of input signals, and a rotate constant scheduler device outputting the ordering signal to the rotate constant ordering device in response to the selection signal, the round number and the sub round number. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of encoding content and performing authenticating of a device, comprising:
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selecting one or more rotate constants from a plurality of input rotate constants for output based on a selection signal configured to determine whether to encode content or to generate a random number and create an exchange key for device authentication, ordering the selected rotate constants and one or both of a separate common rotate constant used to encode content and for device authentication, and a separate non-common rotate constant used when an output signal is not rotated, based on an ordering signal, and generating, in an M6 core device, one or more of an output signal, a validity signal and at least one of a round number and a sub round number based on the ordered rotate constants and a plurality of input signals, wherein the ordering signal is generated based on the selection signal and one or both of the round number and sub round number. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification