crypto_dh_encode_key(9)

🎀 crypto_dh_encode_key(9) 🎀

okay bestie, welcome to the Kernel API Manual entry for crypto_dh_encode_key(9) — it’s giving “encode the private key” energy and honestly it’s lowkey iconic 💅✨

---

🌸 NAME 🌸

crypto_dh_encode_key — encode the private key 🫶

---

✨ SYNOPSIS ✨

int crypto_dh_encode_key (char *buf , unsigned int len , const struct dh *params );

---

💖 ARGUMENTS 💖

• buf — bestie, this is the buffer allocated by the caller to hold the packet DH private key. The buffer should be at least crypto_dh_key_len bytes in size, no cap 🧚
• len — the length of the packet private key buffer 📏
• params — buffer with the caller-specified private key 🔑

---

🦋 DESCRIPTION 🦋

The DH implementations operate on a packet representation of the private key. That’s the whole vibe — packet representation, private key, periodt 💜

---

🔥 RETURN 🔥

• -EINVAL if the buffer has insufficient size 😭
• 0 on success 🎉

---

🌈 SEE ALSO 🌈

• Kernel file ./include/crypto/dh.h
• DH Helper Functions(9)
• struct dh(9)
• crypto_dh_key_len(9)
• crypto_dh_decode_key(9)
• __crypto_dh_decode_key(9)

---

xoxo, your kernel bestie 💖 — source dir ./include/crypto, date/version October 2026, page crypto_dh_encode_key(9). slay ✨👑