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A comment on iOS 11.4 to Disable USB Port After 7 Days: What It Means for Mobile Forensics. Parent comment

Re:iOS 11.4 to Disable USB Port After 7 Days: What It Means ... by thisacctforreal on Wednesday May 09, 2018 @02:24AM (#17027769)
These are easy to calculate, the iOS whitepaper[0] specifies that it uses a PBKDF2 iteration count tuned for 80ms.

The passcode is 'entangled' with a per-device 'UID' that only exists in silicon, not accessible by any firmware.

It seems that the current GrayKey attacks are closer to ~1s/guess.

My last post on the topic: https://news.ycombinator.com/item?id=16833802

[0] Page 15 https://www.apple.com/business/docs/iOS_Security_Guide.pdf

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