Invention Grant
- Patent Title: Voltage encoded MAC and bus scrambling
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Application No.: US16720956Application Date: 2019-12-19
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Publication No.: US11463262B2Publication Date: 2022-10-04
- Inventor: Marcio Juliato , Shabbir Ahmed , Christopher Gutierrez , Xiruo Liu , Manoj Sastry , Liuyang Yang
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: KDB Firm PLLC
- Main IPC: H04L9/32
- IPC: H04L9/32 ; H04L12/40

Abstract:
Various embodiments are generally directed to providing authentication and confidentiality mechanisms for message communication over an in-vehicle network. For example, authentication data associated with a communicating node may be transmitted over the network by encoding different predefined voltage levels on top of the message bits of the message being communicated. Different voltage levels may represent different encodings, such as a bit-pair or any bit combination of the authentication data. In a further example, messaging confidentiality between at least two communicating nodes may be achieved by pseudo-randomly flipping, or scrambling, the dominant and recessive voltages of the entire message frame at the analog level based on a pseudo-random control bit sequence.
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