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Appleā€™s NeuralHash Algorithm Has Been Reverse-Engineered

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Apple’s NeuralHash algorithm — the one it’s using for client-side scanning on the iPhone — has been reverse-engineered.

Turns out it was already in iOS 14.3, and someone noticed:

Early tests show that it can tolerate image resizing and compression, but not cropping or rotations.

We also have the first collision: two images that hash to the same value.

The next step is to generate innocuous images that NeuralHash classifies as prohibited content.

This was a bad idea from the start, and Apple never seemed to consider the adversarial context of the system as a whole, and not just the cryptography...

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agwego
70 days ago
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4 public comments
guilhermea
70 days ago
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People knew it was bound to happen, but this early? Wow.
London, England
jgbishop
70 days ago
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Got to love when Apple blows it!
Durham, NC
freeAgent
70 days ago
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I wonder if we'll see people creating false positives in order to frame others OR in order to jam up Apple's system with lots of false positives. Or both. Probably both.
Los Angeles, CA
zippy72
68 days ago
I can think of at least two governments that are probably working on the former. There's a few hackers on Twitter who claim to be working on the latter.
MotherHydra
70 days ago
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Clearly something that while helpful on its face has immense (possibly impossible) technical hurdles to overcome lest innocent people get flagged.
Space City, USA

Texas Instruments new TI-84 Plus CE Python graphing calculator

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agwego
86 days ago
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Neat
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Researchers use Rowhammer bit flips to steal 2048-bit crypto key

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agwego
864 days ago
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Using Let's Encrypt for Internal Servers

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agwego
961 days ago
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Nice
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German federal office BSI publishes Telemetry analysis

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agwego
1067 days ago
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Let's Encrypt wildcard support launched today

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agwego
1324 days ago
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It's about time
r34lp0w3r
1324 days ago
Indeed
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