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NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
31–40 of 100 posts
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#32Earlier quoted context omitted.
Wasn't the pilot Stockton Rush? His wife was alive. Who are you referring to? I tried to check your claim but I couldn't verify it.
they're talking about nargeolet > Wreck expert Paul-Henri "P.H." Nargeolet, who was also onboard, told me he wasn't worried about what would happen if the structure of the Titan itself were damaged when at the bottom of the ocean. "Under that pressure, you'd be dead before you knew there was a problem." He said it with a smile. (as recounted by Arnie Weissmann, in Travel Weekly article published June 22, 2023)
Yeah I got the roles of pilot and guide mixed
https://www.newyorker.com/news/a-reporter-at-large/the-titan...
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#33Earlier quoted context omitted.
Let’s hear from L Simpson. No, that’s too specific. Let’s hear from Lisa S.
Took me forever to find the actual quote - ChatGPT and Gemini kept trying to gaslight me that it’s not a real quote or that Willie said it to Bart until I gave the exact quote (at which point normal search engines were fine): > A certain agitator, for privacy's sake, let's call her Lisa S. No, that's too obvious, let's say L. Simpson. Lisa the Vegetarian
If you google “Lisa S L Simpson” it’s the first thing that comes up… why make it harder with AI?
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#34The SD card on the camera was intact but encrypted. Decrypting the data required a key stored on a separate SOM board, but the SOM was damaged. The investigation team delivered the SOM and SD card to the camera manufacturer in Newfoundland, and they were able to decrypt the card. They found a couple of images, but No data with a timestamp after May 16th was found on the camera, so it is likely that none of the data r…
> No data with a timestamp after May 16th was found on the camera, so it is likely that none of the data recorded on the SD Card were of the accident voyage or dive. Evidently the camera data was recorded to an external SSD card in the mission computer when the accident occurred. The investigation team actually managed to salvage the PC as well: https://data.ntsb.gov/Docket/Document/docBLOB?ID=19169363&Fi... Sadly it…
Pretty sure tech exists to recover data from flash memory with cracked dies...
I guess they decided it wasn't worth pursuing.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#35Earlier quoted context omitted.
They thought the camera’s file system was unencrypted, when it was encrypted. Unfortunately this situation is likely to get more common in the future as the "security" crowd keep pushing for encryption-by-default with no regard to whether the user wants or is even aware of it. Encryption is always a tradeoff; it trades the possibility of unauthorised access with the possibility of even the owner losing access permane…
This is why I always shake my head when the Reddit armchair security experts say "The data wasn't even encrypted!? Amateur hour!" in response to some PII leak. Sure, sure buddy, I'll encrypt all of my PII data so nobody can access it... including the web application server. Okay, fine, I'll decrypt it on the fly with a key in some API server... now the web server had unencrypted access to it, which sounds bad, but th…
I like the approach of mega.nz...
Server stores encrypted blobs. Server doesn't have the keys.
Entire application is on the client, and just downloads and decrypts what it needs.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#36Earlier quoted context omitted.
I read that the pilot was also basically suicidal. His wife had died, and he was completely fine with the danger because he would die doing what he loved, and he didn't really want to live anymore.
Wasn't the pilot Stockton Rush? His wife was alive. Who are you referring to? I tried to check your claim but I couldn't verify it.
There was only one other crew member in that vessel (well, actual crew and not paper "mission specialist"). He was an older gentleman, and it's quite common for older people to have lost their spouse. Was that so hard to figure out?
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#37Wow. SubC’s software engineering needs some work. They thought the camera’s file system was unencrypted, when it was encrypted. They didn’t know where the keys were to decrypt it. It turned out the key was written unencrypted to a UFS storage device. There was a file written to /mnt/nas/Stills, which indicates that the camera was to writing to a remote file system that wasn’t mounted.
> They thought the camera’s file system was unencrypted, when it was encrypted.
Willing to bet plenty of hn readers are unaware of encryption going on at lower layers of the tech stack than they're aware of.
For example most hard drives encrypt all data, even when not commanded to, as a way to do 'data whitening' (ie making sure there are even numbers of 0's and 1's in the data stream and not some pattern which might throw off tracking.)
The encryption key is simply stored elsewhere in the drive - or nvram or in the firmware.
But it means if you extract the physical magnetic surface and read it with the right microscope, you might well find the data encrypted with no available key.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#38Earlier quoted context omitted.
> No data with a timestamp after May 16th was found on the camera, so it is likely that none of the data recorded on the SD Card were of the accident voyage or dive. Evidently the camera data was recorded to an external SSD card in the mission computer when the accident occurred. The investigation team actually managed to salvage the PC as well: https://data.ntsb.gov/Docket/Document/docBLOB?ID=19169363&Fi... Sadly it…
Pretty sure tech exists to recover data from flash memory with cracked dies... I guess they decided it wasn't worth pursuing.
> Pretty sure tech exists to recover data from flash memory with cracked dies...
If you have anymore on this would love to see any relevant materials.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#39Amusing that the bits the “manufacturer asked to be redacted” in the images appear to be the identifiers for common off-the-shelf electronic components, including a standard memory card. Is that really super secret IP?
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#40What's with the entire dev board crammed in there? Is that... normal? What board is it?
I have seen engineers slap Teensies on a PCB and call it a day, so it’s definitely normal. It’s faster than having to route your MCU, USB, debugger, etc. manually, so there isn’t really a drawback as long as it physically fits there.
> It’s faster than having to route your MCU
Common misconception. A handful of capacitors, SPI NOR flash, an inductor, and a crystal is way easier to place and route than a restrictive module that completely disables your ability to use SWD/JTAG on an otherwise excellent MCU.