# The cryptography behind passkeys - The Trail of Bits Blog - Host: [blog.trailofbits.com](https://links.thingelstad.xyz/hosts/blog.trailofbits.com/) - Saved: May 15, 2025 (2025-05-15T12:08:39Z) - Record: https://links.thingelstad.xyz/links/4731b17c3c55/ - JSON: https://links.thingelstad.xyz/links/4731b17c3c55.json ## What Jamie wrote I’m using passkeys on any sites that support them and 1Password, my secret manager of choice, does a great job managing and storing them. This article goes a bit more into depth on the WebAuthn specification that is passkeys. The additional layers of trust built into the protocol, for example allowing a site to require a certain instance of an authenticator to be used is smart. I think we still need to see if passkeys become useful for regular non-technical users. I worry they can feel a little "magical" and folks will lose credentials a lot. Either way I would much rather see more passkey adoption versus this trend of no passwords and sending an email code every time you login. ## Facts - Kind: [Page](https://links.thingelstad.xyz/kinds/page/) ## Appears in - [WT319: Weekly Thing 319 / Embeddings, Passkeys, Macros](https://weekly.thingelstad.com/archive/319/), Notable ## Saved the same week - [2025-05-11 air traffic control](https://links.thingelstad.xyz/links/204da8961ba5/) (computer.rip, May 15, 2025) - [Iceland approved the 4-day workweek in 2019: nearly 6 years later, all the predictions made have come true.](https://links.thingelstad.xyz/links/72c62f6e3cac/) (farmingdale-observer.com, May 15, 2025) - [Creating a static website for all my bookmarks – alexwlchan](https://links.thingelstad.xyz/links/92d31b1394d8/) (alexwlchan.net, May 15, 2025) - [What is HDR, anyway?](https://links.thingelstad.xyz/links/8f2434a37b44/) (lux.camera, May 15, 2025) - [F1 at 75](https://links.thingelstad.xyz/links/721dbbaccfc8/) (bbc.co.uk, May 15, 2025) ## Elsewhere - Wayback Machine: https://web.archive.org/web/*/https://blog.trailofbits.com/2025/05/14/the-cryptography-behind-passkeys/