EVP_KEYEXCH-X25519(7ossl)

📦 version 14.5, in freebsd 14.5

💖 EVP_KEYEXCH-X25519 💖

okay so bestie, welcome to the EVP_KEYEXCH-X25519 and EVP_KEYEXCH-X448 page of the 7ossl manual — yes that's the OpenSSL family, we're in the crypto section, stay with me 💅

✨ NAME ✨

EVP_KEYEXCH-X25519, EVP_KEYEXCH-X448 — literally the X25519 and X448 Key Exchange algorithm support. that's it, that's the name, iconic behavior 🎀

🌸 DESCRIPTION 🌸

so this is the key exchange support for the X25519 and X448 key types. that's the whole vibe, no cap 🦋

🧚 Key exchange parameters 🧚

  • "pad" (OSSL_EXCHANGE_PARAM_PAD) — type <unsigned integer>. fr fr, for the deets you gotta go look at "Common Key Exchange parameters" in provider-keyexch(7) 👑

💫 EXAMPLES 💫

keys for the host and the peer can be generated exactly like it shows in "Examples" in EVP_PKEY-X25519(7). go get those keys bestie 🔑

and the code to generate a shared secret? identical to "Examples" in EVP_KEYEXCH-DH(7). same energy, copy-paste slay ✨

🫶 SEE ALSO 🫶

EVP_PKEY-FFC(7), EVP_PKEY-DH(7) EVP_PKEY(3), provider-keyexch(7), provider-keymgmt(7), OSSL_PROVIDER-default(7), OSSL_PROVIDER-FIPS(7),

yes there's a lil missing comma in there between EVP_PKEY-DH(7) and EVP_PKEY(3) and a trailing comma at the end — not me fixing it, we keep the lore intact 💀

Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

and that's the whole page, periodt 💖✨ this lil beauty is from version 3.0.21, dated 2026-06-09 — mwah, go forth and exchange those keys securely bestie 🎀🦋💜

📦 where this page comes from