proc_crypto(5)

💖 proc_crypto(5) 💖

ok so bestie, welcome to the File Formats Manual, section 5, and today we're talking about a little file in procfs that's lowkey serving ciphers. yes girl, cryptography, at the kernel level. put your hair up, we're going in ✨

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✨ NAME ✨

/proc/crypto — the ciphers that the kernel crypto API is out here providing, periodt 💅

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🌸 DESCRIPTION 🌸

• /proc/crypto — okay so this is literally a whole list of the ciphers that the kernel crypto API provides. every single one it has to offer, just sitting there being iconic 🎀

and if you want the details, like the actual deep lore, you gotta go read the Linux Kernel Crypto API documentation. where's it at? it lives under the kernel source directory in Documentation/crypto/ — except if you're on a kernel older than Linux 4.10, because back then it was in Documentation/DocBook instead (yes, the drama, the history, the era 💀).

you can build that documentation yourself, btw. something like:

make htmldocs

run that in the root directory of the kernel source tree and you're golden. no cap 🫶

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🦋 SEE ALSO 🦋

• proc(5) — go read it, bestie, it's the whole procfs moment and it's giving main character energy 👑

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ngl this page is short and sweet but that's the vibe. /proc/crypto is just a peek at what the kernel can do. don't sleep on it 🍓

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sign-off time, my love 💜 this lil page came to you from Linux man-pages 6.20, dated 2026-02-08, and it said what it said. stay encrypted, stay slaying, mwah 😭💖🧚🌸⭐