LIBKECCAK_HMAC_SET_KEY(3)

📦 version 1.4.3, in arch rolling, opensuse-leap 16.0

🎀 LIBKECCAK_HMAC_SET_KEY(3) 🎀

okay so this is the LIBKECCAK_HMAC_SET_KEY(3) page, chilling in the Library Functions Manual — yes bestie, we're doing HMAC key stuff today. 💖

🌸 NAME 🌸

libkeccak_hmac_set_key — changes the key for a the HMAC-hashing state

✨ SYNOPSIS ✨

#include <libkeccak.h>

int libkeccak_hmac_set_key(struct libkeccak_hmac_state *state, const void *key, size_t key_length);

Link with -lkeccak.

💅 DESCRIPTION 💅

So libkeccak_hmac_set_key() sets the key for an HMAC-hashing state without resetting the state of the underlying hashing-algorithm. The vibes stay intact, the key changes, periodt. ✨

key_length is the length of the key in bits — bits, bestie, not bytes. Don't get it twisted. 💅

🫶 RETURN VALUES 🫶

  • 0 — successful completion, slay ✅
  • -1 — error, and errno is set to describe the error 😭

😭 ERRORS 😭

libkeccak_hmac_set_key() may fail for any of the reasons specified for the function realloc(3) — so that's the error lore you wanna check. 🙈

🦋 SEE ALSO 🦋

okay bye bestie, this page came from the LIBKECCAK source/version footer and it's page LIBKECCAK_HMAC_SET_KEY(3) — the footer didn't hand me a date, so no cap, that's the whole footer tea 🎀

📦 where this page comes from