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Clarify the case of direct inputs

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Now use the same description for INPUT_SECRET and INPUT_PASSWORD too.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2021-05-05 10:05:06 +02:00
parent acfde465f0
commit 730f62a80a
1 changed files with 11 additions and 6 deletions
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17
include/psa/crypto_values.h
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@ -2267,10 +2267,11 @@ static inline int mbedtls_svc_key_id_is_null( mbedtls_svc_key_id_t key )
*
* The secret can also be a direct input (passed to
* key_derivation_input_bytes()). In this case, the derivation operation
* may not be used to derive keys: the operation will only allow
* may not be used to derive or verify keys: the operation will only allow
* psa_key_derivation_output_bytes() or
* psa_key_derivation_verify_xxx() but not
* psa_key_derivation_output_key().
* psa_key_derivation_verify_bytes() but not
* psa_key_derivation_output_key() or
* psa_key_derivation_verify_key().
*/
#define PSA_KEY_DERIVATION_INPUT_SECRET ((psa_key_derivation_step_t)0x0101)
@ -2282,9 +2283,13 @@ static inline int mbedtls_svc_key_id_is_null( mbedtls_svc_key_id_t key )
* also be high-entropy secret such as a key of type #PSA_KEY_TYPE_DERIVE or
* the shared secret resulting from a key agreement.
*
* If the secret is a direct input, the derivation operation
* may not be used to derive keys: the operation will only allow
* psa_key_derivation_output_bytes(), not psa_key_derivation_output_key().
* The secret can also be a direct input (passed to
* key_derivation_input_bytes()). In this case, the derivation operation
* may not be used to derive or verify keys: the operation will only allow
* psa_key_derivation_output_bytes() or
* psa_key_derivation_verify_bytes(), not
* psa_key_derivation_output_key() or
* psa_key_derivation_verify_key().
*/
#define PSA_KEY_DERIVATION_INPUT_PASSWORD ((psa_key_derivation_step_t)0x0102)