Viewing profile — ctz
ctz
HN member- Joined
- Thu, Oct 21, 2010, 6:48 PM UTC
- HN karma
- 2,856
- Public activity
- 511 items
- HN profile
- View on Hacker News ↗
About ctz
mastodon: https://infosec.exchange/@ctz
github: https://github.com/ctz/
locale: Cambridge, England
alumnus: nCipher, Thales eSecurity, Good Technology, Blackberry, Electric Imp, Twilio
recent open source:
- rustls: a TLS stack in Rust
- fastpbkdf2: faster PBKDF2
Recent public activity
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Comment #47565327
people better not be snooping on my public open source projects!
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Comment #46987198
There were ~16mn users of the internet in 1995. As of 2025 there are 5.56bn. Are you saying paedophilia has dropped by 99.7% over 30 years? If so, please provide a source for that …
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Comment #46765115
Me too!
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Comment #46085998
I have a Neato D650 which I assume meets that classification and is covered by the service withdrawal, it is now pretty degraded -- no notifications, no mapping, no keep-out zones.…
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Comment #45691873
Welcome to the web. Pages often have hyperlinks that can be followed to see related information.
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Comment #44884682
I can already feel the unfinished edge of the desk chipboard on my wrists. Such a premium finish!
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Comment #44878881
I understand that part. Mostly interested where the runners are coming from? macOS especially is pretty costly to provide runners for, so who is doing that for free?
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Comment #44874361
> You can have a nice CI/CD pipeline that runs 100% in-house, for free. Interested! Some detail on how you achieve this for free would be great.
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Comment #44804376
asn1 enjoyers can also look forward to the sweet release of death. though if you end up in hell you might end up staring at XER for the rest of eternity
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Comment #44803565
The other base64 prefix to look out for is `MI`. `MI` is common to every ASN.1 DER encoded object (all public and private keys in standard encodings, all certificates, all CRLs) be…
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Comment #44488769
Looks like it is in ports?
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Comment #44488304
https://pqcrypto2025.iis.sinica.edu.tw/slides/Invited3.pdf edit: video if you prefer - https://www.youtube.com/watch?v=nJxENYdsB6c
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Comment #44288520
My apologies.
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Comment #44222763
> This is awesome for Zig, I think this direction is gonna be a primary differentiator when comparing to Rust. FWIW there is a similar effort for Rust using cranelift: https://gith…
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Comment #44046414
It is instructive to compare Bun and Deno's issue tracker. Like, the five most recent issues for Bun at the time of writing are all crashes. Some of these are controlled panics or …
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Comment #43233678
This is a great opinion piece about Personal Liberties and Free Markets. Thanks Jeff!
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Comment #42766079
My impression is that top aerospace people do not now work in aerospace, but in Motorsport.
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Comment #42076803
The topic is how to make non-local returns faster. I would suggest that normal returns are massively faster, and not returning at all is faster still (zero instructions needed!) --…
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Comment #41918938
Note that the AVX-512 code we're referring to is the code that Intel also contributed to OpenSSL. As a side-note, I believe the CPU we tested this on does not suffer from the AVX-5…
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Comment #41908126
Runtime errors surface when a program runs into an unexpected condition or situation such as dividing by zero, memory overflow, or addressing a wrong or unauthorized memory locatio…
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Comment #41868366
I believe AIX C++ name mangling includes function argument type information (with CV qualifiers!) so this is a real-world case where this does actually break. I suspect curl does n…
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Comment #41813416
The original may have made sense, eg "no hardware dependency", or "no GPU dependency". Unfortunately HN deletes words from titles with no rhyme or reason, and no transparency.
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Comment #41590241
Lots of small strings sparsely spread over 282MB is pretty cache inefficient? Whereas the separate small allocations will likely end up close together, which gives a better chance …
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Comment #41244481
It makes sense once you realise that Chrome and Google benefit from increasing the complexity of web browsers. It means that new browsers cannot feasibly compete. It's basically an…
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Comment #41145058
https://github.com/RustPython/RustPython/blob/main/Lib/PSF-L...