3 ms·
Smart cards are tamper resistant by definition. See https://people.cs.uchicago.edu/~dinoj/smartcard/security.html https://people.cs.uchicago.edu/~dinoj/smartcar
by throwawaymath 8y ago
Smart cards are tamper resistant by definition. See https://people.cs.uchicago.edu/~dinoj/smartcard/security.html https://people.cs.uchicago.edu/~dinoj/smartcard/security.htm....
- gruez 8y agoi did a quick skim of the article for "resist" and couldn't find anything to back your claim. all the article says is that smart cards have better security because they're isolated from the host (which is a security measure, but doesn't say anything about physical tampering resistance), and that some smart cards have tamper resistance built in.
- dfox 8y agoFor true tamper resistance you need to have some way to actually detect tampering and erase the secrets, which usually leads to some battery-backed SRAM and associated tamper response circuitry. While there are some smart cards and smartcard-like HSMs (Fortezza comes to mind, but it uses the battery primarily for integrated RTC and seems to not contain any tamper detection mechanism) with integrated battery, common smartcards does not have battery.
- throwawaymath 8y agoIf you'd like more evidence of what I'm saying, read Smart Cards, Tokens, Security and Applications or Secure Smart Embedded Devices, Platforms and Applications. Both are graduate textbooks covering smart card design and development. The term "smart card" is frequently misused in popular nomenclature. As a technical term, it refers specifically to contact or contact-less (like NFC) cards with an embedded chip which are, at minimum, physically tamper resistant. For example, a typical credit card is not a smart card. A SIM card is a smart card (or token). Tamper resistant does not imply tamper proof, which can also be a source of confusion.