{"version": "https://jsonfeed.org/version/1", "title": "/dev/posts/ - Tag index - cose", "home_page_url": "https://www.gabriel.urdhr.fr", "feed_url": "/tags/cose/feed.json", "items": [{"id": "http://www.gabriel.urdhr.fr/2026/05/19/cryptography-formats/", "title": "Cryptography formats", "url": "https://www.gabriel.urdhr.fr/2026/05/19/cryptography-formats/", "date_published": "2026-05-19T00:00:00+02:00", "date_modified": "2026-05-19T00:00:00+02:00", "tags": ["computer", "security", "cryptography", "ssh", "jose", "jwt", "cose"], "content_html": "<p>If you are trying to understand the difference between the different\ncryptography-related formats\n(PKS#12, PKCS#8, PEM, X.509 certificate, DER, JWK, <code>BEGIN ENCRYPTED PRIVATE KEY</code>??? \ud83e\udd2f),\nyou will hopefully find some useful information here\n(and a lot more your did not wanted to know about).</p>\n"}, {"id": "http://www.gabriel.urdhr.fr/2021/09/22/whats-in-my-covid-cert/", "title": "What is in my COVID-19 vaccination certificate?", "url": "https://www.gabriel.urdhr.fr/2021/09/22/whats-in-my-covid-cert/", "date_published": "2021-09-22T00:00:00+02:00", "date_modified": "2021-09-22T00:00:00+02:00", "tags": ["computer", "covid-19", "cbor", "cwt", "cose", "hcert", "privacy"], "content_html": "<p>Manually inspecting the content of a French COVID-19 vaccination certificate QR code.\nThe main intent is to show with a concrete example\nwhich data is actually included in the certificate.</p>\n"}]}