EVP_CAST5_CBC(3ossl)

✨ NAME ✨

okay so bestie, welcome to OpenSSL's EVP_CAST5_CBC(3ossl) page — it's giving cipher functions, and it's literally all about the EVP CAST cipher 💖

EVP_cast5_cbc, EVP_cast5_cfb, EVP_cast5_cfb64, EVP_cast5_ecb, EVP_cast5_ofb — EVP CAST cipher.

🦋 SYNOPSIS 🦋

no cap, here's the exact synopsis, bestie:

#include <openssl/evp.h>

const EVP_CIPHER *EVP_cast5_cbc(void);
const EVP_CIPHER *EVP_cast5_cfb(void);
const EVP_CIPHER *EVP_cast5_cfb64(void);
const EVP_CIPHER *EVP_cast5_ecb(void);
const EVP_CIPHER *EVP_cast5_ofb(void);

💅 DESCRIPTION 💅

The CAST encryption algorithm for EVP. That's the whole plot. 🎀

This is a variable key length cipher — variable key length, bestie, don't forget.

The page says these give you CAST encryption algorithm in CBC, ECB, CFB and OFB modes respectively, so here's the un-packed version with the exact function names:

• EVP_cast5_cbc() — CAST encryption algorithm in CBC mode.
• EVP_cast5_ecb() — CAST encryption algorithm in ECB mode.
• EVP_cast5_cfb() — CAST encryption algorithm in CFB mode.
• EVP_cast5_cfb64() — CAST encryption algorithm in CFB mode.
• EVP_cast5_ofb() — CAST encryption algorithm in OFB mode.

🎀 NOTES 🎀

⚠️ performance tea, bestie: Developers should be aware of the negative performance implications of calling these functions multiple times and should consider using EVP_CIPHER_fetch(3) with EVP_CIPHER-CAST(7) instead. See "Performance" in crypto(7) for further information. 💅

🌸 RETURN VALUES 🌸

These functions return an EVP_CIPHER structure that contains the implementation of the symmetric cipher. See EVP_CIPHER_meth_new(3) for details of the EVP_CIPHER structure. Slay. 🫶

👑 SEE ALSO 👑

• evp(7)
• EVP_EncryptInit(3)
• EVP_CIPHER_meth_new(3)

⭐ COPYRIGHT ⭐

Copyright 2017-2023 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>.

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okay that's the page, bestie 🫶 — source/version is OpenSSL 3.5.6, date is 2026-04-07, and the manual is EVP_CAST5_CBC(3ossl). periodt. 💖