Posts
Symmetric Encryption Algorithm Suggestions
**Context:** I'm developing an app where I have a "secure" folder. At this point it's basically a location on the file system with sensitive data. If you're using K8s or Docker this is your secrets location that you mount to your container. If you're running this locally it's really no …
Modern PDF signing utility written in Rust, creates an Adobe-compatible detached OpenPGP (GPG) signature and appends it to the PDF, making it easy to sign and verify documents without dragging in heavyweight PDF signing stacks.
# pdf-sign PDF signing utility written in Rust that supports both **OpenPGP (GPG)** and **Sigstore (keyless OIDC)** signatures, appending cryptographic signatures directly to PDFs, making it easy to sign and verify documents without heavyweight PDF signing stacks, making your PDFs authentic, tamper-proof, while being fully compatible with regular readers. [](https://asciinema.org/a/JXR1crpqtcbMT1DIhD3dzXFB9) …
Ask Your Cryptographer if Context-Committing AEAD Is Right for You
Is a 10x speedup over GMP for 2-adic inversion unusual? Looking for context.
Hi, Go easy on me because I'm new to Reddit. I've been experimenting with specialized 2-adic modular inversion (computing d^(-1) mod 2^n for odd integers) using fixed-width big (unsigned) integers. I'm seeing significantly better performance than I expected, and I'd appreciate some context from people who know the landscape better …
Go 1.26 package: runtime/secret -- zeros out registers and memory after running a function run in secret mode
P2P Whatsapp Clone
NOTE: This is still a work-in-progress and partially a close-source project. To view the open source version see [here](https://github.com/positive-intentions/chat). It has NOT been audited or reviewed. For testing purposes only, not a replacement for your current messaging app. I have open source examples of various part of the app and …
MPC Security in Practice
After Years of Controversy, the EU’s Chat Control Nears Its Final Hurdle: What to Know
Resource to learn about TLS optimization
I’m trying to learn how to optimize TLS performance in real systems, especially in service meshes (like Istio or Linkerd) and load balancers (like Nginx or HAProxy). What practical steps, tools, or metrics should I focus on when tuning TLS handshakes, cipher suites, session resumption, hardware acceleration, or certificate-chain details? …