sha512_update(9)

🦋 sha512_update 🦋

okay bestie, this is the Kernel API Manual page for sha512_update(9) — she’s short, she’s sweet, and she’s here to update a SHA-512 context with message data 💅✨

🎀 NAME 🎀

sha512_update — Update a SHA-512 context with message data

✨ SYNOPSIS ✨

Here’s the exact signature, no edits, no cap:

void sha512_update (struct sha512_ctx *ctx , const u8 *data , size_t len
);

💖 ARGUMENTS 💖

• ctx — the context to update; it must have been initialized first. Don’t skip that step, bestie 🫶
• data — the message data.
• len — the data length in bytes.

🌸 DESCRIPTION 🌸

You can call this any number of times. Literally any number — it’s not a one-and-done situation, fr fr 🌈

🦋 CONTEXT 🦋

Any context. That’s the whole vibe check: any context, periodt 💅

👑 SEE ALSO 👑

okay these are the linked besties, all listed exactly because we do not gatekeep:

• Kernel file: ./include/crypto/sha2.h
• sha224 crew:
  • struct sha224_ctx(9)
  • sha224_init(9)
  • sha224_update(9)
  • sha224_final(9)
  • sha224(9)
  • struct hmac_sha224_key(9)
  • struct hmac_sha224_ctx(9)
  • hmac_sha224_preparekey(9)
  • hmac_sha224_init(9)
  • hmac_sha224_init_usingrawkey(9)
  • hmac_sha224_update(9)
  • hmac_sha224_final(9)
  • hmac_sha224(9)
  • hmac_sha224_usingrawkey(9)
• sha256 crew:
  • struct sha256_ctx(9)
  • sha256_init(9)
  • sha256_update(9)
  • sha256_final(9)
  • sha256(9)
  • sha256_finup_2x(9)
  • sha256_finup_2x_is_optimized(9)
  • struct hmac_sha256_key(9)
  • struct hmac_sha256_ctx(9)
  • hmac_sha256_preparekey(9)
  • hmac_sha256_init(9)
  • hmac_sha256_init_usingrawkey(9)
  • hmac_sha256_update(9)
  • hmac_sha256_final(9)
  • hmac_sha256(9)
  • hmac_sha256_usingrawkey(9)
• sha384 crew:
  • struct sha384_ctx(9)
  • sha384_init(9)
  • sha384_update(9)
  • sha384_final(9)
  • sha384(9)
  • struct hmac_sha384_key(9)
  • struct hmac_sha384_ctx(9)
  • hmac_sha384_preparekey(9)
  • hmac_sha384_init(9)
  • hmac_sha384_init_usingrawkey(9)
  • hmac_sha384_update(9)
  • hmac_sha384_final(9)
  • hmac_sha384(9)
  • hmac_sha384_usingrawkey(9)
• sha512 crew:
  • struct sha512_ctx(9)
  • sha512_init(9)
  • sha512_final(9)
  • sha512(9)
  • struct hmac_sha512_key(9)
  • struct hmac_sha512_ctx(9)
  • hmac_sha512_preparekey(9)
  • hmac_sha512_init(9)
  • hmac_sha512_init_usingrawkey(9)
  • hmac_sha512_update(9)
  • hmac_sha512_final(9)
  • hmac_sha512(9)
  • hmac_sha512_usingrawkey(9)

💖 cute sign-off time: source ./include/crypto, date October 2026, page sha512_update(9) — that’s the whole page, mwah! 🫶✨