EVP_CIPHER-RC5(7ossl)

📦 version 3.5.0, in opensuse-leap 16.0

okay bestie, welcome to the EVP_CIPHER-RC5(7ossl) page from the OpenSSL docs 🦋 — yes, we're talking RC5, and yes, it's giving cipher-manual realness. let's get into it.

✨ NAME ✨

EVP_CIPHER-RC5 — the RC5 EVP_CIPHER implementations. that's the whole vibe of the page 🎀

💖 DESCRIPTION 💖

okay so this is the support for RC5 symmetric encryption using the EVP_CIPHER API. literally the whole point.

🚨 bestie, important vibe check: it's disabled by default. use the enable-rc5 configuration option to enable it. no cap.

🎀 Algorithm Names 🎀

the following algorithms are available in the legacy provider, and yes they're all iconic:

  • "RC5-CBC" or "RC5"
  • "RC5-ECB"
  • "RC5-OFB"
  • "RC5-CFB"

🌈 Parameters 🌈

this implementation supports the parameters described in "PARAMETERS" in EVP_EncryptInit(3). go read that for the parameter details, iykyk ✨

👀 SEE ALSO 👀

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>.

cute sign-off 🫶: this was OpenSSL version 3.5.0, dated 2026-09-25, for the EVP_CIPHER-RC5(7ossl) manual page. slay, bestie, and may your RC5 docs always be readable 💅

📦 where this page comes from