bem94

7 ms·

1.
by bem94 4mo ago
I have only read a few passages (and some of the excellent quotes others have shared here), but I find the underlying message here so much more compelling than those found in the various "manifestos" which come out of Silicon Vall
2.
by bem94 5mo ago
All national agencies I'm aware of do not support QKD except in "very specific cases" and instead recommend Post-Quantum Cryptography (PQC). From the UK NCSC [1]: > QKD does not provide authentication, nor do any other qua
3.
by bem94 6mo ago
I'd expect a finding / paper like this to be submitted to the IACR ePrint server [1] to bring it to the attention of the cryptographic community. I can't see that it's been submitted yet. Venue should not imply credibili
4.
Why Did a $10B Startup Let Me Vibe-Code for Them–and Why Did I Love It?(wired.com)
2 points by bem94 1y ago|0 comments
5.
by bem94 2y ago
> I find the suddenness, almost haste to be quite interesting. > But there is a clear change around 2022, 2023. I think that's probably because the NIST competition [1] to choose their standard algorithms really started to heat u
6.
PQShield secures $37M more for 'quantum resistant' cryptography(techcrunch.com)
2 points by bem94 2y ago|0 comments
7.
Critics say £1B for UK chip industry not enough(bbc.co.uk)
2 points by bem94 3y ago|0 comments
8.
by bem94 4y ago
> To me what is most surprising is that the attack seemingly came out of nowhere, This wasn't my understanding at all. The specific issue in isogeny based cryptography which the attack exploits has been a source of worry in the cryp
9.
Chip startup Tachyum alleges Cadence sabotaged processor rollout(theregister.com)
12 points by bem94 4y ago|1 comments
10.
by bem94 4y ago
It's possible, but it is _a lot_ of work! You'd basically be building a cryptographic module (industry standard term, with a lot of specs and requirements to go a long with it), which is no small undertaking in terms of correctnes
11.
Period tracking apps warning over Roe vs. Wade case in US(bbc.co.uk)
2 points by bem94 4y ago|1 comments
12.
by bem94 5y ago
In lots of places this makes sense. E.g. lots of embedded ARM platforms have a separate AES / ECC accelerator peripheral. The trouble comes when you need to share access to a memory mapped peripheral among multiple threads/process
13.
by bem94 5y ago
Direct links to some of the latest specs: - Scalar crypto: https://github.com/riscv/riscv-crypto/releases - Vectors: https://github.com/riscv/riscv-v-spec/releases - Bitmanip: https:&#x
14.
by bem94 5y ago
There is some overlap. There's the "Zbkb" (horrible name, I know) extension which contains a subset of instructions from the larger bitmanip extensions which are very useful for cryptography. The more general bitmanip extensi
15.
by bem94 5y ago
The algorithm specific instructions are all optional. You can have AES without SM4 or vice versa. RISC-V is great like that, it's designed to be modular. > instead of requiring the rest of the world to waste transistors for somethin
16.
by bem94 5y ago
It means that each instruction reads no more than two general purpose registers (i.e. inputs), and writes at most one. When you build CPUs, register files are expensive components, and the more parallel accesses to them you need, the more e
17.
by bem94 5y ago
> for those who don't feel like reading the spec: I'm biased, but the spec is supposed to be very accessible to people without a cryptography background. There's a section on who the intended audience is and what assumptio
18.
RISC-V Scalar Cryptography Extension reaches public review(github.com)
78 points by bem94 5y ago|18 comments
19.
Amazon offers 'wellness chamber' for stressed staff(bbc.co.uk)
1 points by bem94 5y ago|0 comments
20.
EncroChat, targeted equipment interference, and the Court of Appeal(decoded.legal)
1 points by bem94 6y ago|0 comments
21.
by bem94 6y ago
The point is that RISC-V allows people to build their own tweaked / extended processors without having to pay an ARM and a leg for it.
22.
by bem94 6y ago
Right you are, that's the group responsible. It's something of a priority for RISC-V international right now, because of exactly this worry. RISC-V International is sometimes really bad at communicating that it's working on t
23.
by bem94 6y ago
> I can't imagine RISC-V beyond niche applications unless someone publishes a more strictly specified version of it that provides a unified platform. They're working on this right now. Niche applications can still do their thin
24.
by bem94 6y ago
What does "moral diabetes" mean?
25.
by bem94 6y ago
In a plea for accuracy, can we be specific about which type of Diabetes we are talking about? They are _very_ different, both in how they are caused and how they are managed.
26.
by bem94 6y ago
What is meant by "invisible security"?
27.
by bem94 6y ago
https://lists.centos.org/pipermail/centos-announce/2020-Dece...
28.
by bem94 6y ago
> This article makes far reaching societal claims with essentially no evidence. The evidence presented is in the form of "feelings" of various writers concerned of their own decline in literaryfocus. From quite far down in the
29.
by bem94 6y ago
> Thus, we have a writer privately squeezing into an artificial, decontextualized "space" in order to convey something, fictive or not, to unknown readers in unknown but theoretically very distant times who are similarly situat
30.
by bem94 6y ago
This is really cool - I hope people will start offering companion courses: "Verifying a RISC-V processor". If you've done both, it's a real multiplier for your understanding of CPUs and hardware generally.

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