Touch ID

  • Question: isn’t the fingerprint data just stored on the hardware register and equality checked anyway?
  • No, a hashed version is stored. Input is hashed to check it against it.
  • In a secure “sandboxed” region called the security enclave
  • only part of fingerprint, not whole thing (a sample)
  • How do you create a sandbox in hardware?


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Kevin Chow
Kevin Chow
Fledging Computer Scientist