🔒 Fix insecure randomness seeding in seed_random#10
Conversation
…evice The seed_random function was generating seeds based on the current system time, which is highly predictable and insecure for PRNG usage. This commit replaces the high_resolution_clock with std::random_device to fetch hardware/OS-level entropy, shifting two 32-bit values to properly generate a secure 64-bit seed. Co-authored-by: perim <436583+perim@users.noreply.github.com>
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with New to Jules? Learn more at jules.google/docs. For security, I will only act on instructions from the user who triggered this task. |
🎯 What: The vulnerability fixed
Replaced an insecure time-based seed source in
seed_randomwithstd::random_device.System time is predictable. An attacker can predict the sequence of pseudo-random outcomes from a time-seeded generator if they know roughly when it was initialized.
🛡️ Solution: How the fix addresses the vulnerability
The fix uses
std::random_deviceto provide a non-deterministic source of true entropy provided by the OS or hardware for generating the initial 64-bit seed.PR created automatically by Jules for task 9524878788825339724 started by @perim