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Full key extraction of Nvidia TSEC (gist.githubusercontent.com)

633 points by vitplister · 1762 days ago · 168 comments on HN

Article summary

The article discusses the full key extraction of Nvidia TSEC, although the article itself is not available. Commenters reveal that the extraction was done through voltage glitching, which involves manipulating the voltage supply to the chip to induce errors in its calculations. The attack exploits the fact that AES is one of the most complex operations and is thus the first to start faulting when the voltage is dropped. The success of this attack has implications for the security of other cryptoprocessors.

Main themes

  • Nvidia TSEC key extraction
  • Voltage glitching attacks
  • Cryptoprocessor security
  • Secure chip design
  • Anti-tampering techniques
  • Cost vs. security tradeoffs

What commenters say

  • Voltage glitching is a powerful attack method that can be used to extract keys from secure chips.
  • The security of the Nvidia TSEC chip was compromised due to its cost-conscious design and lack of local power regulation circuits.
  • Other popular cryptoprocessors may be vulnerable to similar attacks, highlighting the need for more secure designs.
  • The use of physical unclonable functions (PUFs) and other anti-tampering techniques can make it more difficult to reverse-engineer or clone secure chips.
  • Some companies prioritize profit over security, leading to the release of flawed security solutions.
  • The development of open consoles and secure chips requires a balance between security and cost considerations.
  • The attack on the Nvidia TSEC chip has implications for the security of gaming consoles and other devices that use similar chips.
  • The effectiveness of voltage glitching attacks can be mitigated with proper design and testing of secure chips.