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Security perimeter

  • US 9,575,903 B2
  • Filed: 08/04/2011
  • Issued: 02/21/2017
  • Est. Priority Date: 08/04/2011
  • Status: Active Grant
First Claim
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1. A memory device comprising:

  • a memory integrated circuit including at least;

    memory including a plurality of memory regions configured to store information communicated with at least one processor; and

    logic-in-memory at least partially integrated with the memory, the logic-in-memory including at leastencryption logic configured to create at least one cryptographic security perimeter internal to the memory integrated circuit enclosing at least one selected memory region of the plurality of memory regions wherein data inside the at least one cryptographic security perimeter has a different cryptographic state than information outside the at least one cryptographic security perimeter, and at least one of encryption or decryption of data is performed during a direct memory-to-memory transfer across the at least one cryptographic security perimeter wherein the data is at least one of encrypted or decrypted during transfer from a first memory region to a second memory region internal to the memory integrated circuit; and

    tamper-handling logic configured to create at least one physical tamper handling security perimeter internal to the memory integrated circuit enclosing at least one selected memory region of the plurality of memory regions wherein at least one physical tamper-handling function is performed in association with the at least one selected memory region within the at least one physical tamper handling security perimeter.

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