hw_unique_key_derive_key()

int hw_unique_key_derive_key	(	enum hw_unique_key_slot	key_slot,
		const uint8_t *	context,
		size_t	context_size,
		uint8_t const *	label,
		size_t	label_size,
		uint8_t *	output,
		uint32_t	output_size
	)

#include <include/hw_unique_key.h>

Derive a key from the specified HUK, using the nrf_cc3xx_platform API on CryptoCell. Cracen PSA driver APIs on Cracen.

See nrf_cc3xx_platform_kmu_shadow_key_derive() for more info.

Parameters

[in]	key_slot	Keyslot to derive from.
[in]	context	Context for key derivation.
[in]	context_size	Size of context.
[in]	label	Label for key derivation.
[in]	label_size	Size of label.
[out]	output	The derived key.
[in]	output_size	Size of output.

Returns

HW_UNIQUE_KEY_SUCCESS on success, otherwise a negative hardware unique key error code