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leverage psa_allocate_buffer_to_slot from slot management

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It makes the implementation of psa_load_builtin_key_into_slot a lot
cleaner.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
This commit is contained in:
Steven Cooreman
2021-04-06 16:45:06 +02:00
parent 0bb653600f
commit 7609b1ff6c
3 changed files with 29 additions and 28 deletions
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15
library/psa_crypto_core.h
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@ -180,6 +180,21 @@ static inline psa_key_slot_number_t psa_key_slot_get_slot_number(
*/
psa_status_t psa_wipe_key_slot( psa_key_slot_t *slot );
/** Try to allocate a buffer to an empty key slot.
*
* \param[in,out] slot Key slot to attach buffer to.
* \param[in] buffer_length Requested size of the buffer.
*
* \retval #PSA_SUCCESS
* The buffer has been successfully allocated.
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* Not enough memory was available for allocation.
* \retval #PSA_ERROR_ALREADY_EXISTS
* Trying to allocate a buffer to a non-empty key slot.
*/
psa_status_t psa_allocate_buffer_to_slot( psa_key_slot_t *slot,
size_t buffer_length );
/** Copy key data (in export format) into an empty key slot.
*
* This function assumes that the slot does not contain