@dkorunic

Principal Cloud Architect at HAProxy Technologies / Executive Product Manager at Crossvallia

 Zagreb, Croatia
linkedin.com/in/dkorunic
Joined October 2014
  • Tweets1.7K
  • Following160
  • Followers305
203Media
I am moving to🦋 due to better and more active community and I implore you to consider the same.
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ECDSA curve origins: anthropic.com/research/ecdsa… #cryptography #ellipticcurves #programming

Claude reveals ECDSA curve origins

The decades-old mystery of the origins of one of the most popular cryptographic standards has been explained.

anthropic.com
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Prompt injection via cloned repo: ponytail’s SessionStart hook piped raw repo text (multi-line export { } lists, odd folder names) into the model’s hidden context. PR: identifier-only export entries + safe-path filter. github.com/DietrichGebert/po… #security #appsec #aisecurity

fix(map): keep repo-controlled text and symlinked files out of the SessionStart map by dkorunic ·...

Closes #1071 hooks/ponytail-map.js (new in 5.0) forwards raw text from the opened repo into the hidden SessionStart context and follows any tracked symlink. Both reproduced by running the real hook...

github.com
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Planning tonight’s imaging session? astro-recommender now runs client-side as a Go WASM build, so you can rank targets without installing anything. This was my first Go-to-WASM port and it was much smoother than expected: dkorunic.github.io/astro-rec… #astrophotography #golang
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Spent many sleepless nights on this: astro-recommender, a static binary (Linux/macOS/Win) picking best imaging targets per night/location. Scores clouds, dew, wind, airmass, light pollution, moon, FOV. No subscriptions, no API keys. github.com/dkorunic/astro-re…

GitHub - dkorunic/astro-recommender: What to image tonight: ranks deep sky targets and comets for...

What to image tonight: ranks deep sky targets and comets for your location, weather, Moon and telescope - dkorunic/astro-recommender

github.com
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betteralign v0.12.0 is out at github.com/dkorunic/betteral…! A major upgrade for Go developers: improved robustness, faster performance, a completely rewritten & fuzz-tested AST decorator, refreshed docs, and updated benchmarks. Especially effective in large monorepos. #golang #devops

GitHub - dkorunic/betteralign: Detect and fix suboptimal struct field layout in Go: reduces padding...

Detect and fix suboptimal struct field layout in Go: reduces padding and GC pointer bytes, rewrites files while preserving comments. A drop-in fieldalignment replacement. - dkorunic/betteralign

github.com
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Dinko Korunic retweeted
Iceman
@herrmann1001May 24
I know it is really hard to understand how much better and improved the proxmark3 has become over the years. Here is a graphic list of the following card technologies that is currently supported in #proxmark.
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Dinko Korunic retweeted
Ivan Krstić
@radianMay 22
🔺NEW: Formally verified post-quantum ML-KEM and ML-DSA in corecrypto, with correctness proven from the FIPS spec down to hand-optimized ARM64 assembly — a world first at multi-billion device scale. And we're releasing our Isabelle libraries, ARM64 model, and Cryptol-to-Isabelle translator to advance the state of the art in verified cryptography! security.apple.com/blog/form…

A blueprint for formal verification of Apple corecrypto - Apple Security Research

With the latest release of corecrypto, we’re publishing our implementations of quantum-secure ML-KEM and ML-DSA algorithms, along with the mathematical proofs we built to assure they are faithful to...

security.apple.com
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betteralign github.com/dkorunic/betteral…: evolved fork of Go's fieldalignment. Preserves field comments through reordering, skips generated files, atomic writes. Months of allocation profiling baked in. Serious struct padding without wrecking your codebase. #golang #devops
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Spent the weekend nights reviving a 15-year-old toy project of mine: a Linux uptime spoofer. Ported it to modern kernels and refreshed the codebase along the way: github.com/dkorunic/uptime_h… #linux #kernel #devops #security

GitHub - dkorunic/uptime_hack: Small Linux kernel module that tampers with reported uptime

Small Linux kernel module that tampers with reported uptime - dkorunic/uptime_hack

github.com
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Tomorrow I’ll be giving a talk at Bsides Varaždin titled "Caveats of Using eBPF in Linux". If you're interested, you can check out the slides here: dkorunic.net/pdf/Korunic_eBP… Feel free to stop by, listen in, and join the discussion! #ebpf #linux #sysops #kernel
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Astrophotography has a quiet magic I didn’t expect. Valentina and I have been spending our nights under the stars, and this is what came out of it: ~700 frames, 20s each, capturing Bode’s Galaxy. Curious to hear what you think ✨
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Dinko Korunic retweeted
Iceman
@herrmann1001Apr 20
The latest Proxmark3 release is called BREAKMEIFYOUCAN! Not a random name. That is the actual 3DES factory default key NXP burned into every MIFARE Ultralight C they shipped since 2008. Somebody finally broke it properly. The paper drops the keyspace from 2^112 down to 2^28. Counterfeit cards fall in under 60 seconds from a single card interaction. The tooling is merged: github.com/RfidResearchGroup… #Proxmark3 #RFID #NFC #MifareUltralightC #NXP #OpenSource
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Dinko Korunic retweeted
Viacheslav Biriukov
@brk0vApr 15
🦀 Rust: Deadlock-Free Mutexes Instead of hoping lock ordering is correct at runtime, Surelock pushes deadlock prevention into the type system: • invalid lock ordering rejected at compile time • ergonomics that still feel practical notes.brooklynzelenka.com/Bl… #rust #rustlang
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Han Lee: The AI Great Leap Forward leehanchung.github.io/blogs/… #ai #programming #devops

The AI Great Leap Forward and Its Failure Modes

In 1958, Mao ordered every village to produce steel. The steel was useless. The crops rotted. Today's top-down AI mandates are producing the same pattern: ba...

leehanchung.github.io
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A close colleague just launched a great new product: secure DB access with rmBug 🔐 Identity-based access, no shared credentials, and full audit logs—so you always know who did what 🚀 rmbug.com #rmbug #sysops #devops
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Senko @senkorasic has got some clever tricks for AI-driven mutation testing definitely worth trying! 🔍🤖 blog.senko.net/improving-ai-… #programming #ai #claude #devops

Improving AI-generated tests using mutation testing — Senko Rašić

So, I vibe-coded me a simple web app the other day (Pingu, a web monitoring and alerting tool for internal use). To increase the chances...

blog.senko.net
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Diving Into Coverage-Guided Fuzzing from @pierrezemb.fr pierrezemb.fr/posts/diving-i… #programming #devops #fuzzing

Diving Into Coverage-Guided Fuzzing

How a 600-line Rust fuzzer discovers a 3-byte crash sequence in 9,000 iterations instead of 16 million

pierrezemb.fr
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I’ve updated my iSMC tool github.com/dkorunic/iSMC: It now supports decoding and displaying temperature, fan, battery, power, voltage, and current data on M5 hardware - and should work well with older hardware too. #macos #cli #sysops #monitoring

GitHub - dkorunic/iSMC: Apple SMC CLI for macOS — temperature, fan, battery, power, voltage and...

Apple SMC CLI for macOS — temperature, fan, battery, power, voltage and current sensors on Intel and Apple Silicon (M1–M5), with table, JSON and InfluxDB output - dkorunic/iSMC

github.com
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A tale about fixing eBPF spinlock issues in the Linux kernel rovarma.com/articles/a-tale-… #ebpf #kernel #devops #programming

A tale about fixing eBPF spinlock issues in the Linux kernel | Ritesh Oedayrajsingh Varma

A system freeze led us deep into Linux spinlock internals, where we helped find not one but three bugs in the kernel's resilient locking code used by eBPF.

rovarma.com
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Dinko Korunic retweeted
Claude
@claudeaiMar 13
1 million context window: Now generally available for Claude Opus 4.6 and Claude Sonnet 4.6.
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