STRUCT SM3_CTX(9)

🎀 NAME 🎀

struct sm3_ctx — bestie, this is literally the context struct for hashing a message with SM3 ✨ like it holds all the little state bits while you're feeding data through the hash 🫶

✨ SYNOPSIS ✨

struct sm3_ctx {
    struct sm3_block_state state;
    u64 bytecount;
    u8 buf[SM3_BLOCK_SIZE];
 };

okay so that's the whole shape of it 💅 three members, no cap, and every single one of them matters 🔥

🌸 Members 🌸

• state — the compression function state 💖 this is the internal mood of the hash, the actual churning part, the main character energy of the whole struct 👑
• bytecount — number of bytes processed so far 🧮 literally keeping count of every byte that's gone through, so the hash knows where it's at 📊
• buf — partial block buffer 🎀 and here's the detail you cannot skip: exactly bytecount % SM3_BLOCK_SIZE bytes are valid in there ✨ so like, it's not always full, only that many bytes actually count 🙈

fr fr do not assume the whole buffer is live — only bytecount % SM3_BLOCK_SIZE bytes are valid, iykyk 💀

🦋 SEE ALSO 🦋

Kernel file ./include/crypto/sm3.h plus the whole squad: sm3_init(9), sm3_update(9), sm3_final(9), sm3(9) 🌈 go read those next, they're iconic ⭐

and that's the page, bestie 🫶 this was the Kernel API Manual version of struct sm3_ctx(9), coming at you from ./include/crypto, dated October 2026 🌸 slay, now go hash something 💜