Free Post Probabilistic Data Structures Frequency analysis on hundreds of billions of reports at Report URI: Top-K After looking at how a Bloom Filter [https://scotthelme.co.uk/frequency-analysis-on-hundreds-of-billions-of-reports-at-report-uri-bloom-filters/] works and moving on to understand...
Free Post Report URI Report URI is now using CSP nonces in an enforced policy Hurrah! Sometimes it takes a little while for projects to make it through your backlog and into production, but the nonce-based policy for CSP on Report URI can now...
Free Post Report URI Report URI Penetration Test 2021 Wow, where did that last year go?! It's time for our annual penetration test again over at Report URI and just like we did last year, we'...
Free Post Pwned Passwords Sketchy Pwned Passwords After playing with some more probabilistic data structures and talking about Count-Min Sketch [https://scotthelme.co.uk/frequency-analysis-hundreds-billions-reports-report-uri-count-min-sketch/] , I wanted...
Free Post Report URI Frequency analysis on hundreds of billions of reports at Report URI: Count-Min Sketch At the time of writing, Report URI [https://report-uri.com] has processed a total of 669,142,999,794 reports. That's a lot of reports and sometimes...
Free Post Report URI When Pwned Passwords Bloom! I recently wrote about Bloom Filters [https://scotthelme.co.uk/frequency-analysis-on-hundreds-of-billions-of-reports-at-report-uri-bloom-filters/] , the hugely space efficient, probabilistic data structures,...
Free Post Report URI Frequency analysis on hundreds of billions of reports at Report URI: Bloom Filters Have we seen this report before? It sounds like a simple question to ask of a service that collects and processes hundreds of millions of reports per day, and in...
Free Post Let's Encrypt Working around expired Root Certificates Should clients care about when a Root Certificate expires? That's a bit of an odd question, and the first time I asked myself this question, the answer was...
Free Post Let's Encrypt Let's Encrypt Root Expiration - Post-Mortem Well, the Internet Apocalypse came and went! Due to the recent expiration of the Let's Encrypt intermediate and root certificates, I saw more widespread issues than I was...
Free Post Let's Encrypt's Root Certificate is expiring! On 30th September 2021, the root certificate that Let's Encrypt are currently using, the IdentTrust DST Root CA X3 certificate, will expire. You may or may not need...
