Software modem with privileged mode driver authentication
First Claim
1. A computer system, comprising:
- a peripheral device;
a processing unit adapted to execute a driver for interfacing with the peripheral device in a standard mode of operation and an authentication agent in a privileged mode of operation, wherein the authentication agent includes program instructions adapted to authenticate the driver.
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Accused Products
Abstract
A computer system includes a peripheral device and a processing unit. The processing unit is adapted to execute a driver for interfacing with the peripheral device in a standard mode of operation and an authentication agent in a privileged mode of operation, wherein the authentication agent includes program instructions adapted to authenticate the driver. The peripheral device may comprise a communications device, such as a software modem. A method for identifying security violations in a computer system includes executing a driver in a standard processing mode of a processing unit; transitioning the processing unit into a privileged processing mode; and authenticating the driver in the privileged processing mode. The driver may be adapted for interfacing with a communications peripheral device, such as a software modem.
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Citations
41 Claims
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1. A computer system, comprising:
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a peripheral device; a processing unit adapted to execute a driver for interfacing with the peripheral device in a standard mode of operation and an authentication agent in a privileged mode of operation, wherein the authentication agent includes program instructions adapted to authenticate the driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A communications system, comprising:
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a physical layer hardware unit adapted to communicate data over a communications channel in accordance with assigned transmission parameters, the physical layer hardware unit being adapted to receive an incoming signal over the communications channel and sample the incoming signal to generate a digital received signal; and a processing unit adapted to execute a modem driver in a standard mode of operation and an authentication agent in a privileged mode of operation, wherein the standard mode driver includes program instructions adapted to extract control codes from the digital received signal and configure the physical layer hardware assigned transmission parameters based on the control codes, and the authentication agent includes program instructions adapted to authenticate the modem driver. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for identifying security violations in a computer system, comprising:
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executing a driver in a standard processing mode of a processing unit; transitioning the processing unit into a privileged processing mode; and authenticating the driver in the privileged processing mode. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. A system for identifying security violations, comprising:
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means for executing a driver in a standard processing mode of a processing unit; means for transitioning the processing unit into a privileged processing mode; and means for authenticating the driver in the privileged processing mode.
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Specification