sm3_final(9)

💖 NAME 💖

sm3_final — bestie, this is the function that finishes computing an SM3 message digest. We're in the Kernel API Manual btw, and this page is sm3_final(9) ✨

🌸 SYNOPSIS 🌸

void sm3_final (struct sm3_ctx *ctx , u8 out[static SM3_DIGEST_SIZE] );

🎀 ARGUMENTS 🎀

• ctx — the context to finalize, and bestie it must have been initialized first, no cap. 💅
• out — (output) the resulting SM3 message digest. This is where the digest lands. 🫶

🦋 DESCRIPTION 🦋

Okay so after finishing, this zeroizes ctx. That means the caller does not need to do it themselves — it's already handled. periodt. 💖

✨ CONTEXT ✨

Any context. Literally any context. 🌈

👑 SEE ALSO 👑

• Kernel file ./include/crypto/sm3.h
• struct sm3_ctx(9)
• sm3_init(9)
• sm3_update(9)
• sm3(9)

the way this ties into the rest of the SM3 crew 🧚

cute sign-off: this page lives in ./include/crypto, dated October 2026, and it's the sm3_final(9) page. mwah 💋✨