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NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

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Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#91

Earlier quoted context omitted.

This has already happened to Windows users when BitLocker disk encryption is enabled by default and they do something that causes the encryption key to be lost. You can have the key saved in your Microsoft account.

You can have the key saved in your Microsoft account. I find it very hard to believe that those who want their disk encrypted also want Microsoft to have the key.

Microsoft isn't going to release it without a warrant. But you have to trust their security not to leak it.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#92

Earlier quoted context omitted.

Did this thing meet any design codes though? I doubt it.

I read the report when it come out. From memory, no. It never had any components or certification for human pressure vessels. IIRC theres no existing regs for carbon fiber and it would have cost like $50M to do the design and test work. They did buy some things, like the viewport, from companies who do certified parts, but instead opted for the same design minus any test certs to save money. The craft was never certi…

Thanks for the detailed answer! It doesn't suprise me at all.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#93

Earlier quoted context omitted.

You can have the key saved in your Microsoft account. I find it very hard to believe that those who want their disk encrypted also want Microsoft to have the key.

Microsoft isn't going to release it without a warrant. But you have to trust their security not to leak it.

Unless the JeDI contract is up for renewal

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#94

Earlier quoted context omitted.

Microsoft isn't going to release it without a warrant. But you have to trust their security not to leak it.

Unless the JeDI contract is up for renewal

What does that have to do with bitlocker?

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#95
post #86
post #33

Earlier quoted context omitted.

If you google “Lisa S L Simpson” it’s the first thing that comes up… why make it harder with AI?

I've recently randomly seen some younger guy running a basic calculation like 7*12 in chatgpt on his phone. It just had me in disbelief

Every time I wade into X, I always see people asking "Grok is this true?" and I weep for humanity.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#96
post #7

What's with the entire dev board crammed in there? Is that... normal? What board is it?

>What's with the entire dev board crammed in there? Is that... normal?

Yep. I designed boards for cameras like this (and the vehicles they are mounted on) for 20 years. When you're only going to sell ~30 a year, and it's going into a $7k enclosure, the extra $7 for the dev board you used during prototyping isn't even a consideration. Go ahead and design around the breadboard, at this low volume it's WAY cheaper than the time to re-design the support circuitry from scratch and it gives you time to start working on the NEXT project that has already been sold to customers with a delivery date quickly looming.

Many times I have heard the tech stack for the subsea industry called "Shop & Glue."

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#97

Earlier quoted context omitted.

I don't like this interpretation of things. Its worthwhile to experiment and try things. They were basically mentally ill as a group and rejected genuine concern. Everyone wants to shit on the build but it was the human relations that killed it.

Also, honestly, the build. That “genuine concern” they ignored was that the build was critically flawed. I don’t think anyone here would have these takes if a small group of curious engineers tried their hand at a composite submersible, it was when they kept doing it after all the qualified engineers had said, “This is crazy, I’m out.” The build was kind of dumb, and I’m hardly an engineer. It’s common sense. Carbon…

A submarine needs to be light to be neutrally buoyant in order to fly though the water properly. Otherwise you have a bathyscaphe, which has some other not nice failure modes (in addition to the "implodes if you f it up" one) and are much less maneuverable and arguably the whole system is less durable more costly for high tempo operations. "Just build a tube strong enough and big enough to not need all that" is a better answer, if you can pull it off.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#98

There's a fascinating and redacted interview with an "anonymous" subject about the disaster. To say the least it's an unsuccessful attempt to hide the identity of the individual: "Q. So how did you get yourself started into submersible operations? A. Well, I'm sure you're familiar with my film Titanic. When I set down the path to make that film, the first thing that I did was arrange to be introduced to the head of t…

Among the interviews, one with the former engineering director was the most eye-opening for me. https://data.ntsb.gov/Docket/Document/docBLOB?ID=17236880&Fi... It appears that all the engineers -- system designer, material engineer and structural analyst -- thought that OceanGate CEO was going to kill himself: If you ever find , he’s not going to have a whole lot of nice to say. He was very frustrated with the compan…

'And the director himself declined'

An anecdotal personal story as it aligns with this exact statement although no one got killed but data breaches certainly occurred.

Many years ago now I was propositioned to be on the board of a financial technology company and they spared no expense in literally rolling out the red carpet for my arrival. I found it all very laughable being solely focused on business and the technical details as I was not being fooled by all the schmoozing. After hearing all the unrealistic business objectives and the promise of having the Philadelphia Flyers involved I then asked to meet the technology team that built the product to see a demo. They bring in one young guy who built it all, the executives are still present mind you, and they allow me to ask any and all questions about the platform that nearly no one in management comprehended. After seeing the demo which involved several blatant security issues I asked only one more question of the sole developer: "Would you put your financial information into this system?"

He provided his answer in front of the companies executive board and I can still see their reactions to this very day. I then stood up and thanked everyone for opportunity and left.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#99

Earlier quoted context omitted.

doesn't mean it's active.

"Active" with those systems just means the encryption key is now user-supplied instead of being stored on the controller/drive. The actual encryption is always active; which makes sense, if anything it means you have one less configuration to test.

If I learned one thing about SSD firmwares/controllers it's to be sure of nothing. Especially when the market is flooded with cheap controllers that can barely keep up with line speeds I'm very much doubtful that they're unconditionally encrypting at rest data.

Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)

#100
post #19

> Removed SD card. The manufacturer of the camera had requested certain components of the device be redacted. Portions of this image have been redacted. And so it is, but anyone who has ever seen a Sandisk SD card knows what they're looking at. I can even tell it's not the fastest V90 speed. The things companies try ineffectually to keep out of public view are weird.

yeah, I'd guess the person who made this decision just wanted to cover their butt. it got a good laugh out of me reading the caption, though. "hmmm. who could use this distinct branding so many people are familiar with? it looks a bit orange; maybe it's Home Depot."
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