STRUCT BLAKE2S_CTX(9)

💖 NAME 💖

Okay bestie, welcome to the struct blake2s_ctx(9) page in the Kernel API Manual ✨ and no cap, this one is short but iconic. <pink>struct blake2s_ctx` is literally the context for hashing a message with BLAKE2s — that’s the whole vibe 💅

✨ SYNOPSIS ✨

Here’s the struct in all its main-character glory — copy it exactly, okay? 🫶

       struct blake2s_ctx {
           u32 h[8];
           u32 t[2];
           u32 f[2];
           u8 buf[BLAKE2S_BLOCK_SIZE];
           unsigned int buflen;
           unsigned int outlen;
        };

🎀 Members 🎀

• h — the compression function state, doing its lil internal glow-up ✨
• t — the block counter, keeping track of blocks fr fr 🧮
• f — the finalization indicator, aka the “we’re done here” flag vibe 🏁
• buf — the partial block buffer; buflen bytes are valid 👀
• buflen — number of bytes buffered in buf, periodt 💅
• outlen — length of output hash value in bytes, at most BLAKE2S_HASH_SIZE 🌸

🔥 SEE ALSO 🔥

• Kernel file ./include/crypto/blake2s.h: blake2s_init(9), blake2s_init_key(9), blake2s_update(9), blake2s_final(9), blake2s(9) 🦋

okay that’s the whole page, bestie 💖 source/version: ./include/crypto; date: October 2026; title: struct blake2s_ctx(9). mwah 💋 byeee 🫶