append_proto_dkp(9)

Welcome to the Kernel API Manual page for append_proto_dkp(9), bestie — this one is all about the Derived Key Protocol, aka DKP, and it's giving “key → split key” energy. ✨

🎀 NAME 🎀

append_proto_dkp — Derived Key Protocol (DKP): key -> split key 💅

✨ SYNOPSIS ✨

Okay so here's the exact signature, no cap:

void append_proto_dkp (u32 * const desc , struct alginfo *adata );

💖 ARGUMENTS 💖

• desc — pointer to buffer used for descriptor construction. That's the buffer where the descriptor gets built, bestie. 🛠️
• adata — pointer to authentication transform definitions. keylen should be the length of initial key, while keylen_pad the length of the derived (split) key. Valid algorithm values — one of OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512}. 🔐

🦋 SEE ALSO 🦋

• Kernel file ./drivers/crypto/caam/desc_constr.h
• struct alginfo(9)
• desc_inline_query(9)

mwah 💋 — this cutie comes from source/version ./drivers/crypto/caam, dated October 2026, and it's the append_proto_dkp(9) page. periodt. 🌈👑