---
name: "libnvmf_gen_kxchap_key-libnvme3"
section: "2"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/libnvmf_gen_kxchap_key-libnvme3"
---

# libnvmf\_gen\_kxchap\_key-libnvme3(2)

KX-HMAC-CHAP key generation

## NAME

libnvmf\_gen\_kxchap\_key - KX-HMAC-CHAP key generation

## SYNOPSIS

**int libnvmf\_gen\_kxchap\_key** **(struct libnvme\_global\_ctx \*ctx** *,* **char \*hostnqn** *,* **enum libnvmf\_hmac\_alg hmac** *,* **unsigned int key\_len** *,* **unsigned char \*secret** *,* **unsigned char \*key** *);*

## ARGUMENTS

- ctx

  struct libnvme\_global\_ctx object

- hostnqn

  Host NVMe Qualified Name

- hmac

  HMAC algorithm

- key\_len

  Output key length

- secret

  Secret to used for digest

- key

  Generated KX-HMAC-CHAP key

## RETURN

If key generation was successful the function returns 0 or a negative error code otherwise.