https://kpetrucena.lv/posts/ Recent content in Blog on Caffeinated Petručeņa Hugo en-us Sun, 19 Apr 2026 00:00:00 +0000 https://kpetrucena.lv/posts/boi-2026/ Sun, 19 Apr 2026 00:00:00 +0000 https://kpetrucena.lv/posts/boi-2026/ Latvia has participated in the Baltic Olympiad in Informatics since 1995. BOI 2026 took place in the Helsinki metropolitan area (Aalto University, Espoo), and the Latvian team returned with three bronze medals. https://kpetrucena.lv/posts/etsi-014-v1-problems/ Fri, 20 Mar 2026 00:00:00 +0000 https://kpetrucena.lv/posts/etsi-014-v1-problems/ Quantum Key Delivery (QKD) can detect eavesdropping on a communication channel. ETSI GS QKD 014 helped standardize QKD key delivery northbound API, but its model is too narrow. This post argues that the standard underspecifies SAE identity binding, authorization, key sizing, bulk delivery, and buffering.