Mathematician/Software engineer/PDF expert/FOSS dev Opinions are my own.
Leuven, België
Joined March 2022
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Matthias Valvekens retweeted
Oh wow, finally!
ed25519 is an approved NIST digital signature standard: federalregister.gov/document…
People are already implementing ISO/TS 32001 and 32002 out there!
(...and it's not just me, I promise!)
Read an overview of new extensions and clarifications to PDF 2.0 in support of advanced #cryptography. #AES #FIPS
pdfa.org/pdf-2-0-modernizes-…
Matthias Valvekens retweeted
when you know what “statistically significant” means
ALT Poll re: reinstating trump, followed by a claim that it’s statistically significant because of Musk’s many followers
🥁🥁 You can now use EdDSA in #pdf signatures!
...well, at least we have an #ISO spec for it now. Quick write-up (+DIY demo) here: mvalvekens.be/blog/2022/iso-…
While I use a MacBook when travelling, I've used a Linux box as my main dev machine for most of the past decade :). You're right that the "PDF on the Linux desktop" experience is lagging behind, though.
TL;DR: I use arch btw
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Matthias Valvekens retweeted
#ePrint An efficient key recovery attack on SIDH (preliminary version): W Castryck, T Decru ia.cr/2022/975
ISO 32004, a proposed extension to PDF 2.0 that defines a mechanism for integrity protection in encrypted #pdf documents, reached the DTS stage of the standards development process a few months ago.
Here's a write-up: mvalvekens.be/blog/2022/abou…
Reason 1247163 why XFA needs to die already.
A malicious PDF document which presents different content based on the reader application used: blog.fraktal.fi/two-faces-of…
Matthias Valvekens retweeted
.@FIDOAlliance's executive director just informed me that individual participation in the standard is not possible, meaning the feedback we have collected from Webauthn RS (as an RP library) is not able to be provided to the WG. I'm very disappointed in this.
Matthias Valvekens retweeted
In 2020 the #LaTeXProject started working to produce tagged and #accessible PDF from LaTeX sources. At #PDFDaysEurope2022 the team will describe the project's state, achievements, and plans.
pdfa.org/presentation/tagged…
Matthias Valvekens retweeted
Join me next Wednesday (June 8th) at 18:00 CEST / 12:00 ET to learn more about PDF signatures and how to create them using @iText! The session will be livestreamed over here: youtube.com/itext
(terms and conditions may apply)
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Matthias Valvekens retweeted
I just wrote normal Japanese and Visual Studio Code warned like "oh, it is confusing character and you may want to use slash instead."
shut up.
Join me next Wednesday (June 8th) at 18:00 CEST / 12:00 ET to learn more about PDF signatures and how to create them using @iText! The session will be livestreamed over here: youtube.com/itext