Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

iPhone 18 Pro and iPhone 18 Pro Max

apple.com

Post reply on HN
Print view View original

431–440 of 447 posts

Re: iPhone 18 Pro and iPhone 18 Pro Max

#431

Post by lxgr »

jaggederest wrote: post #407
lxgr wrote: post #385

Earlier quoted context omitted.

How would the server know that the request is coming from a real iPhone? This is a pretty standard application of trusted computing and can be done entirely on the iPhone. A server would only possibly be needed for anonymization (while retaining key revocation capabilities if a key does end up leaking), but there are serverless ways to do even that (TPMs have supported these for a while now).

It wouldn't, but you could validate that a particular picture was created at a particular time, and had not changed, for example, especially with metadata that you may not want to share but that establishes certain parameters like gps coordinates. A lock, rather than an end-to-end pixel signature, which shows what was contemporaneous rather than exact provenance. If an event happened on day 0000-00-00 00:00:00am, but…

That's just a timestamping service then, not a content provenance/authentication scheme. Timestamping has been a solved problem for years; certificate authorities offer this, or you could just throw a hash onto any sufficiently trusted blockchain.

Nothing prevents anyone from opportunistically pre-generating and timestamping millions of permutations of fake kompromat and then selectively revealing the one that turns out to be useful after the fact.

You could charge per attestation, but the economics of that don't look great; you could demand publication of the image itself before attestation, but that would obviously not fly for most use cases out of privacy concerns.

Re: iPhone 18 Pro and iPhone 18 Pro Max

#432

Post by vel0city »

mrheosuper wrote: post #350
eigen wrote: post #349

Earlier quoted context omitted.

are these videos larger than the iphone SSD or TB SSD DRAM buffer and will need to drop to NAND erase/write speed?

No, but i dont understand your point ?

The point is, with your example the link speed of the iPhone isn't the limiting thing of your example. You'll likely be limited by the speed of your storage before you saturate that link.

Re: iPhone 18 Pro and iPhone 18 Pro Max

#433

Post by kllrnohj »

cavoirom wrote: post #321
kllrnohj wrote: post #216

Earlier quoted context omitted.

Reporters who only capture pictures on an iPhone and not a "real" camera, and who also never need to edit the photo to crop off or obscure identifying information, innocent bystanders/victims, gory violence or nudity, etc... The problem is real, but this solution seems to not really solve it in any practical sense.

You want to do all that, then still can prove the picture is authentic. The editing history show what had been changed compare to the previous version, from the color adjustment to blur areas... it's not about preventing editing, it's about proving the authenticity when needed.

> The editing history show what had been changed compare to the previous version, from the color adjustment to blur areas...

That's not a thing. Straight from Apple:

"When a photo is taken in the new Reference mode, the camera captures signed sensor data that Private Cloud Compute develops into an unalterable reference image. Reference images can be viewed in the Photos app alongside the main image"

So this only helps prove anything if you can share the original, unedited image. You can share it alongside an edited one, but you must also be comfortable sharing the unedited original if you want to prove you own an iPhone 18 Pro. Er, I mean prove it's "authentic"

Now I think C2PA had allowances for what you're talking about, but that also ended up resulting in it being easier to break.

Re: iPhone 18 Pro and iPhone 18 Pro Max

#434

Post by khalic »

Gigachad wrote: post #226
ks2048 wrote: post #171

Earlier quoted context omitted.

If that became popular, the AIs would learn how to generate a realistic depth map along with any generated image.

The photos are cryptographically signed in the apple image pipeline so it's not as simple as just AI generating something. That said, I can't see how this is any different to all the other times we have embedded crypto keys in consumer hardware where eventually someone finds a way to extract the key and the whole thing is busted open.

Nobody has breached the Secure Enclave, not sure it’s doable without investing millions in direct circuit manipulation. Seems good enough

Re: iPhone 18 Pro and iPhone 18 Pro Max

#435

Post by ChrisRR »

josephg wrote: post #205
o_m wrote: post #116

Earlier quoted context omitted.

I only care about it because I'm waiting for a MacBook Neo with more than 8gb of memory.

With the price of ram going up by 5x, I want to see our industry move in the opposite direction. Computers for regular people should go back to 4gb or even 2gb of ram, just to keep the prices sane. We should get software working well on those devices, just like it did a decade or two ago. Small, memory efficient programs run better everywhere. It feels like theft to make consumers pay for our inefficient software. El…

Let's stop filling static websites with javascript. That should instantly reduce the overhead

Re: iPhone 18 Pro and iPhone 18 Pro Max

#436

Post by ChrisRR »

SirMaster wrote: post #123
runjake wrote: post #109

Earlier quoted context omitted.

Based on supply chain leaks, it's pretty safe to assume 12 GB memory with up to 100GB/sec memory bandwidth at best. The A19 Pro had 12 GB and was around 77GB/sec memory bandwidth for reference. If I was a betting man, I'd say the memory bandwidth on the A20 Pro is the same.

But they said the memory bandwidth was double the previous generation.

This is apple. They're the kings of "memory bandwidth is 2x... (within a very specific set of test cases)"

Re: iPhone 18 Pro and iPhone 18 Pro Max

#437

Post by ChrisRR »

otherjason wrote: post #21
nobleach wrote: post #15

Earlier quoted context omitted.

> the most advanced camera in an iPhone I mean, I can't remember the last time they DIDN'T say that. Variable aperture is kinda cool I guess. 256Gigs of storage basically means everyone's going to have to upgrade their iCloud storage monthly spend just to back this thing up. I've stopped sending my camera roll to iCloud just to save on space.

Apple events are full of these meaningless statements, which always drive me crazy. Of course it's the "best iPhone Apple has ever made." If it wasn't, then wouldn't I be better off buying an older model?

I'd be quite happy with "It's not as powerful as last years model, but it has double the battery capacity"

Re: iPhone 18 Pro and iPhone 18 Pro Max

#438

Post by ChrisRR »

bilekas wrote: post #339

I'm finding it really hard to justify buying a new iPhone. They're so expensive these days for marginal improvements that seems if you're not an avid photo taker/media maker you don't get much back from.

Don't then. Just wait until you actually need a new phone before buying a new one

Re: iPhone 18 Pro and iPhone 18 Pro Max

#439

Post by ubermonkey »

theplumber wrote: post #204
ksec wrote: post #60

I am actually quite excited on this iPhone 18 Pro. Seems to pack a a lot of exciting stuff. 2nm A20 Pro, C2. I wish they have N2 but I guess not. 2nd Generation Vapour Chamber. I thought I would have to wait another generation because Apple like to use new product features for two generation before moving on. And it seems this Vapour Chamber along with other heat desperation features are much better built. Much bette…

Besides a better camera what all this along with the past generations have so exciting ? I just fail to see a reason to upgrade. Maybe I am getting old?

Because of a very, very last minute AppleCare replacement (like, 35 months after purchase), I have a year-old iPhone 14 Pro.

I figured there was nothing Apple could introduce yesterday that would turn my head, but the 40+ hour battery life AND the adjustable aperture on the camera are, by themselves, making me consider it. It'll all come down to what discounts or carrier subsidies are available to me, and what the trade-in value is for my phone. But as a shutterbug who travels, those two things are VERY interesting.

Re: iPhone 18 Pro and iPhone 18 Pro Max

#440

Post by ChrisRR »

JK-Swizzle wrote: post #170
tonyedgecombe wrote: post #125

Earlier quoted context omitted.

>I doubt any phone battery is lasting 5+ years. Just coming up to five years on mine and it is still at 87% capacity.

That is genuinely shocking to hear. You have to be like 3+ sd above the mean. Do you know how many charge cycles you have? I recall that most batteries need replacing after 300-500 cycles.

There's no way that's true. Otherwise everyone's phone battery would need to be completely replaced every 2 years

Edit: I just googled it. Apple claims that the iphone 17 should handle 1000 full charge cycles before reaching 80% capacity

Post reply on HN