qcom_ice_derive_sw_secret(9)

💖 qcom_ice_derive_sw_secret(9) 💖

okay bestie, welcome to the Kernel API Manual — this is the page for qcom_ice_derive_sw_secret(9), and it’s giving “derive a software secret from a wrapped key” energy. 🎀 No cap, every little detail is staying.

🌸 NAME 🌸

qcom_ice_derive_sw_secret — Derive software secret from wrapped key. 💅

✨ SYNOPSIS ✨

int qcom_ice_derive_sw_secret (struct qcom_ice *ice , const u8 *eph_key
, size_t eph_key_size , u8 sw_secret[BLK_CRYPTO_SW_SECRET_SIZE] );

🎀 ARGUMENTS 🎀

• ice — ICE driver data. That’s the vibe. 🧊
• eph_key — an ephemerally-wrapped key. 🫶
• eph_key_size — size of eph_key in bytes.
• sw_secret — output buffer for the software secret. ✨

💅 DESCRIPTION 💅

So the whole point: use HWKM to derive the “software secret” from a hardware-wrapped key that is given in ephemerally-wrapped form. That’s literally the move. 👑

🔥 RETURN 🔥

• 0 — success, we love to see it.
• -EBADMSG — the given ephemerally-wrapped key is invalid. 😭
• or another -errno value — yeah, the error lane stays open.

🦋 SEE ALSO 🦋

Kernel file: ./drivers/soc/qcom/ice.c 🧚

• qcom_ice_get_supported_key_type(9)
• qcom_ice_generate_key(9)
• qcom_ice_prepare_key(9)
• qcom_ice_import_key(9)
• of_qcom_ice_get(9)
• devm_of_qcom_ice_get(9)

mwah 💋 this has been your Kernel API Manual moment for qcom_ice_derive_sw_secret(9) — source/version vibes from ./drivers/soc/qcom, dated October 2026. xoxo, go derive that secret bestie 💖