EVP_KDF-PVKKDF(7ossl)

📦
version 15.1 · 2 versions
, in freebsd 15.1

💖 EVP_KDF-PVKKDF 💖

okay so bestie, welcome to the EVP_KDF-PVKKDF(7ossl) page — this is the OpenSSL manual for the PVK KDF, and we're gonna get you so comfy with it ✨

🎀 NAME 🎀

EVP_KDF-PVKKDF — literally the PVK EVP_KDF implementation, no cap 💅

🌸 DESCRIPTION 🌸

So this page is all about support for computing the PVK KDF PIN-based KDF through the EVP_KDF API 🫶

The EVP_KDF-PVKKDF algorithm implements a PVK PIN-based key derivation function — it derives a key from a password using a salt 🔥

🦋 Identity 🦋

"PVKKDF" is the name for this implementation 👑 you can use it with the EVP_KDF_fetch() function, periodt.

⭐ Supported parameters ⭐

The supported parameters are, and yes, we're listing all of them:

  • "pass" (OSSL_KDF_PARAM_PASSWORD) <octet string>
  • "salt" (OSSL_KDF_PARAM_SALT) <octet string>
  • "properties" (OSSL_KDF_PARAM_PROPERTIES) <UTF8 string>
  • "digest" (OSSL_KDF_PARAM_DIGEST) <UTF8 string>

These parameters work as described in "PARAMETERS" in EVP_KDF(3). iykyk 💜

🌈 NOTES 🌈

A typical application of this algorithm is to derive keying material for an encryption algorithm from a password in the "pass" and a salt in "salt" 💫

No assumption is made regarding the given password — it is simply treated as a byte sequence, and honestly? respect 🙈

⚠️ the legacy provider needs to be available in order to access this algorithm — don't forget her, she's the main character here 👑

🍓 SEE ALSO 🍓

Go read these too, bestie, they're iconic:

💀 HISTORY 💀

This functionality was added in OpenSSL 3.2 — so she's a 3.2 baby, fr fr 🧚

Copyright 2021 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, bestie!! 🌸 version 3.5.6, dated 2026-04-07 — slay, you ate this one up, mwah 💖🦋🎀

📦 where this page comes from