Earlier quoted context omitted.
If you're talking about SED feature, no, it isn't widespread since it's regarded as an "enterprise" feature and only available in minority of drives (regardless of HDD or SSD). Client or OEM variants of same drives (otherwise identical) lack SED option most of the time and doesn't encrypt data by default.
The hardware is still there - they don't make a new asic for the consumer version
NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
61–70 of 100 posts
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#62Earlier quoted context omitted.
Yes, using carbon fiber was also a very bad decision; it was known for a very long time that it was only good for single-use sub, because after the first dive it was too damaged to continue. In 2014, Virgin Oceanic, which had similar plans with similar technology, closed shop because it didn't make economic sense to build a new sub for each dive. But weight is absolutely an issue; the basic and tried-and-true metal s…
>size and thickness grow exponentially It's a [reverse] pressure vessel, so it follows pressure vessel scaling. Mass scaling is linear with internal volume.
Also, in practice, small imperfections can have a disproportionate impact on the resistance of the sphere so design codes typically apply conservative reductions that can have a big impact on actual thickness requirements.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#63Earlier quoted context omitted.
>size and thickness grow exponentially It's a [reverse] pressure vessel, so it follows pressure vessel scaling. Mass scaling is linear with internal volume.
It’s funny how “literally” often means “figuratively” now, and “exponentially” means “polynomially”.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#64There'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…
Cameron did several TV interviews about the Titan, why would they redact his name? He didn't mince his words either; he was extremely critical of the whole thing before and after the disaster.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#65Amusing 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)
#66I'm confused. Why are decryption keys in NVRAM? That seems to negate the purpose of at-rest encryption if you can retrieve keys from the device even after shutdown.
For a machine that needs to boot unattended, what would you do with disk decryption keys?
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#67Wow. 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. 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…
You can have the key saved in your Microsoft account.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#68Earlier quoted context omitted.
>size and thickness grow exponentially It's a [reverse] pressure vessel, so it follows pressure vessel scaling. Mass scaling is linear with internal volume.
Ok yes "exponentially" was hyperbolic. Mass scales linearly with volume, but volume is proportional to the cube of the radius (not linear). Also, in practice, small imperfections can have a disproportionate impact on the resistance of the sphere so design codes typically apply conservative reductions that can have a big impact on actual thickness requirements.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#69Earlier quoted context omitted.
Ok yes "exponentially" was hyperbolic. Mass scales linearly with volume, but volume is proportional to the cube of the radius (not linear). Also, in practice, small imperfections can have a disproportionate impact on the resistance of the sphere so design codes typically apply conservative reductions that can have a big impact on actual thickness requirements.
Did this thing meet any design codes though? I doubt it.
Re: NTSB report: Decryption of images from the Titan submersible camera [pdf] (2024)
#70Earlier quoted context omitted.
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?
> If you google “Lisa S L Simpson” it’s the first thing that comes up… why make it harder with AI?
Because AI is the future! His employer is probably requiring him use it first for everything. Only when it fails (and you can tell), may other ways to solve the problem be tried.