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PSA PBKDF2: add/update input types

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For the numeric values, I followed the apparent existing convention:
- first byte is 01 for secret inputs, 02 for non-secret inputs
- then second by is just incremented for each new input type

The documentation references a function that will be introduced in the
next commit.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2021-04-20 11:30:11 +02:00
parent 759438cfce
commit 5a67992a61
1 changed files with 22 additions and 1 deletions
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23
include/psa/crypto_values.h
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@ -2149,6 +2149,20 @@ static inline int mbedtls_svc_key_id_is_null( mbedtls_svc_key_id_t key )
*/
#define PSA_KEY_DERIVATION_INPUT_SECRET ((psa_key_derivation_step_t)0x0101)
/** A low-entropy secret input for password hashing / key stretching.
*
* This should be a key of type #PSA_KEY_TYPE_PASSWORD or #PSA_KEY_TYPE_DERIVE
* (passed to psa_key_derivation_input_key())
* or the shared secret resulting from a key agreement
* (obtained via psa_key_derivation_key_agreement()).
*
* 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
* psa_key_derivation_output_bytes(), not psa_key_derivation_output_key().
*/
#define PSA_KEY_DERIVATION_INPUT_PASSWORD ((psa_key_derivation_step_t)0x0102)
/** A label for key derivation.
*
* This should be a direct input.
@ -2159,7 +2173,8 @@ static inline int mbedtls_svc_key_id_is_null( mbedtls_svc_key_id_t key )
/** A salt for key derivation.
*
* This should be a direct input.
* It can also be a key of type #PSA_KEY_TYPE_RAW_DATA.
* It can also be a key of type #PSA_KEY_TYPE_RAW_DATA or
* #PSA_KEY_TYPE_PEPPER.
*/
#define PSA_KEY_DERIVATION_INPUT_SALT ((psa_key_derivation_step_t)0x0202)
@ -2177,6 +2192,12 @@ static inline int mbedtls_svc_key_id_is_null( mbedtls_svc_key_id_t key )
*/
#define PSA_KEY_DERIVATION_INPUT_SEED ((psa_key_derivation_step_t)0x0204)
/** A cost parameter for password hashing / key stretching.
*
* This must be a direct input, passed to psa_key_derivation_input_numeric().
*/
#define PSA_KEY_DERIVATION_INPUT_COST ((psa_key_derivation_step_t)0x0205)
/**@}*/
#endif /* PSA_CRYPTO_VALUES_H */