STRUCT SHA224_CTX(9)

💖 struct sha224_ctx(9) — Kernel API Manual 💖

okay bestie, welcome to the tiniest kernel struct page ever — it’s from the Kernel API Manual, and it’s literally just here to say hi. 🫶

🌸 NAME 🌸

struct sha224_ctx — this is the context for hashing a message with SHA-224. That’s the whole name vibe. 💅

✨ SYNOPSIS ✨

       struct sha224_ctx {
           struct __sha256_ctx ctx;
        };

bestie, it’s giving “small struct, big purpose.” no cap. 🎀

🎀 Members 🎀

• ctx — private. that’s the label, no extra lore, keep it moving. 🙈

👑 SEE ALSO 👑

the kernel file in question is ./include/crypto/sha2.h, and here’s the whole (9) friend group — every single one, no skipping:

• 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)
• 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)
• 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)
• struct sha512_ctx(9)
• sha512_init(9)
• sha512_update(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)

okay that’s the whole page — source vibes from ./include/crypto, dated October 2026, and it’s all about struct sha224_ctx(9). mwah 💋✨