Secure message routing

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11972030
APP PUB NO 20210374286A1
SERIAL NO

17402693

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In described examples, a method of routing messages in a system on a chip (SoC) includes a secure message router receiving a message including a content, an identifier of the message's sending (origin) functional block and/or of a receiving (destination) functional block, a message secure value, a promote value, and a demote value. A context corresponding to the identifier is retrieved from a memory. The context includes an allow promote value and an allow demote value. The message secure value is increased if the promote value requests the increase and matches the allow promote value. The message secure value is decreased if the demote value requests the decrease and matches the allow demote value. Cleartext corresponding to the content is made accessible by the destination if the context secure value matches the message secure value. The message is then outputted from the secure message router to the destination.

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First Claim

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lasmana, Eric Plano, US 4 13
Mundra, Amritpal Singh Allen, US 25 130

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