EVP_MAC-SIPHASH(7SSL)

📦
version 4.0.3 · 13 versions
, in ubuntu stonking

✨ NAME ✨

EVP_MAC-Siphash — ok so this is The Siphash EVP_MAC implementation, bestie 💅

🦋 DESCRIPTION 🦋

It's giving "support for computing Siphash MACs through the EVP_MAC API." That's the whole vibe. No cap. ✨

🎀 Identity 🎀

This implementation is identified with this name and these properties, and you use it with EVP_MAC_fetch():

"SIPHASH", "provider=default"

Like. That's her whole government name. Remember it, use it, slay. 👑

🌸 Supported parameters 🌸

The general description of these parameters lives in "PARAMETERS" in EVP_MAC(3). Go read that for the lore, this page is the gossip.

All of these parameters can be set with EVP_MAC_CTX_set_params(). And on top of that, the "size" parameter can be retrieved with EVP_MAC_CTX_get_params(), or with EVP_MAC_CTX_get_mac_size(). The length of the "size" parameter should not exceed that of a size_t — that's the rule, respect it 🫶

  • "key" (OSSL_MAC_PARAM_KEY) <octet string> — Sets the MAC key. Setting this parameter is identical to passing a key to EVP_MAC_init(3). Same energy, different doorway. 🔑
  • "size" (OSSL_MAC_PARAM_SIZE) <unsigned integer> — Sets the MAC size. It's literally the size. You're doing amazing, sweetie. 💖
  • "c-rounds" (OSSL_MAC_PARAM_C_ROUNDS) <unsigned integer> — Specifies the number of rounds per message block. By default this is 2. Two. That's it. ✌️
  • "d-rounds" (OSSL_MAC_PARAM_D_ROUNDS) <unsigned integer> — Specifies the number of finalisation rounds. By default this is 4. Final round? She's finalising. 🧚

👀 SEE ALSO 👀

Go be nosy. Stay curious. 🌈

Copyright 2018-2021 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>.

ok that's the whole page bestie, tysm for reading, you ate 💅 periodt

Mwah 💖 this was the EVP_MAC-SIPHASH(7SSL) man page from OpenSSL, version 4.0.3, dated 2026-09-29. Sleep well, my little crypto gremlin. 🎀✨

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