bunnie

17 ms·

1. 151.▲
   by bunnie 5y ago

   The admonition runs through my mind all the time, too. I'm not qualified to implement Curve25519 entirely from scratch. But, the good news is that this accelerates certain primitives within a Rust crate that was written by a cryptograp
2. 152.▲
   by bunnie 5y ago

   Hi Jeremy! So far only some anecdotal characterizations. Running the crypto core full-out on our wiggle-everything-to-see-that-it-works test vector suite adds 247mW +/- 5mW of power over the baseline idle condition. This is fairly comp
3. 153.▲
   by bunnie 5y ago

   Thanks! It's good to know I'm not alone in feeling this way. This is actually an abridged version, if you click into the link for the "datasheet" ( https://ci.betrusted.io/betrusted-soc/doc/engin
4. 154.▲
   by bunnie 5y ago

   You're probably right. And assuming you are, then I think maybe the core problem may be that academics even tolerate the petty undercutting of reputation based not on the merit of the big ideas, but rather minor flaws in the proofs of
5. 155.▲
   by bunnie 5y ago

   Dan will be missed. I am saddened by his passing and my heart goes out to his family.
6. 156.▲
   by bunnie 6y ago

   I'm trying to make sense of the 'memory qubits' e.g. 'spatial modes' in the paper. Do you know if they are they a sort of...quantum flip flop? Is this also a hypothetical structure, or have they been built and shown
7. 157.▲
   by bunnie 6y ago

   I'm pretty sure 'dark matter' candidates do include cold baryonic matter, it's just that in large part it's been ruled out due to a lack of observations exactly like the one reported here. The fact that we had not s
8. 158.▲
   by bunnie 6y ago

   > "Human networks behave differently than any other network we've ever measured," Fridman told The Jerusalem Post. "In a state of frustration, they don't look for a 'middle,' but ignore one of the input
9. 159.▲
   by bunnie 6y ago

   Can't agree more... 5G adoption hasn't been as fast as anticipated, and an easy fix to that problem is to give customers no choice but to upgrade to 5G by using regulatory mechanisms to prevent the roll out of potentially competit
10. 160.▲
    by bunnie 6y ago

    Strangely, one of the first pasta casualties we noticed in Singapore was bucatini disappearing from the shelves here as well. Which has nothing to do with the FDA issue brought up in the article, but probably has to do with the comment in t
11. 161.▲
    by bunnie 6y ago

    Weird, the site looks fine on my mobile... It is a theme from like...almost 20 years ago. Minimalist, simple. I haven't been able to find a "new" theme that I'm happy with, they have too many features and too much javasc
12. 162.▲
    by bunnie 6y ago

    I actually wanted to broaden the bandwidth of the planar inverted F antenna patch bit; it was too peaky and narrow. I experimented with about four or five variants of the logo until I found one that had the desired effect. So it is true, th
13. 163.▲
    by bunnie 6y ago

    I note that the official press release from Apple does not mention ARM even once...
14. 164.▲
    by bunnie 6y ago

    thanks for reading them!
15. 165.▲
    by bunnie 6y ago

    Precursor is focused on applications that prioritize evidence-based trust over everything else. Thus it's envisioned that it could be useful for applications such as password managers, authentication token generation, secure comms and
16. 166.▲
    by bunnie 6y ago

    Thanks for pointing that out. Yes, the $1mm number I cited in my post is the estimated raw cost of a full mask set for a relatively modern process in the 2Xnm or smaller range. Definitely older processes have much cheaper mask sets -- in pa
17. 167.▲
    by bunnie 6y ago

    It's a bit like trying to detect whether you are running in a virtual machine or not. You can't trust a chip to run a piece of code to introspect on itself; instead a more reliable characterization of a chip may come from examinin
18. 168.▲
    by bunnie 6y ago

    I'm also worried about this, which is part of the reason why the Precursor design avoids using hard IP blocks like RAM and USB controllers. It does limit the performance of the system (we have a simple async RAM interface and full-spee
19. 169.▲
    by bunnie 6y ago

    From the article: "When the error happened, the system should have carried out what’s called a failover -- an automatic switching to the No. 2 device. But for reasons the exchange’s executives couldn’t explain, that process also failed
20. 170.▲
    by bunnie 6y ago

    We've got a curve25519 accelerator for the reference hardware: https://ci.betrusted.io/betrusted-soc/doc/engine.html
21. 171.▲
    by bunnie 6y ago

    This project is definitely security-first. That being said, we're defining "hackability" as "empowerment to hack". For example, this is one of the few platforms where you can hack the CPU itself by adding new instru
22. 172.▲
    by bunnie 6y ago

    Thanks for the enthusiasm! I happen to be up really late tonight, but I'm going to bed soon. Thank you for the support and kind words. The accelerometer is the LSM6DS3, I'll refer you directly to the manufacturer's website:
23. 173.▲
    by bunnie 6y ago

    I'll be writing an article on this in the future, and you're right, the keyboard was a serious pain to build. It's one of the big reasons it took two years to bring the product to this state.
24. 174.▲
    by bunnie 6y ago

    There is no change of stance, but there is a subtlety. The hair to split here is that between "security" and "trustability". I'm defining "security" to include the ability of a device to keep a secret afte
25. 175.▲
    by bunnie 6y ago

    I agree this would be cool, and the good news is that systems close to meeting your wishes already exist today. However, Precursor is more about evidence-based hardware security, and less about features and usability. To better understand t
26. 176.▲
    by bunnie 6y ago

    The iCE40UP5K is not the main processor. It's the embedded controller. Think of it as a power management coprocessor that takes care of things like managing the battery while the main CPU is asleep. It is packed to the gills, but the i
27. 177.▲
    by bunnie 6y ago

    thanks, fixed.
28. 178.▲
    by bunnie 6y ago

    Think of the flip side: Programmers are terrible biologists. Sure, it would be great if we all had more time to learn how to code. Coding is important. But I'd say the onus should be on coders to build better tools and documentation so
29. 179.▲
    by bunnie 6y ago

    It is creepy and a valid cause for concern. However, one of the redeeming features of a hardware token (vs. a phone app) for contact tracing is that eventually, the battery goes dead and the token is useless. So even if you forget to deacti
30. 180.▲
    by bunnie 6y ago

    Yes, that is the meaning. Person 1's individual time line looks like this to Person 1: - Person 1 contracts the virus, becomes infectious, but shows no symptoms. - Person 1 gives the virus to Person 4. - Person 4 becomes ill and shows