Cipher instruction search attack on the bus-encryption security microcontroller DS5002FP

  • Kuhn M
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Abstract

A widely used bus-encryption microprocessor is vulnerable to a new
practical attack. This type of processor decrypts on-the-fly while
fetching code and data, which are stored in RAM only in encrypted form.
The attack allows easy, unauthorized access to the decrypted memory
content

Author-supplied keywords

  • Bus encryption
  • Crypto processor
  • Cryptography
  • Secure microprocessor
  • Software protection
  • Tamper resistance

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Authors

  • Markus G. Kuhn

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