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Simplify psa_key_derivation_input_bytes

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The specific key derivation input functions support a subset of the
input options and need to check it anyway. Checking it at the top level
is redundant, it brings a very little value and comes with a cost in
code size and maintainability.
This commit is contained in:
Janos Follath
2019-06-14 11:27:57 +01:00
parent adbec81cc4
commit c56215163f
1 changed files with 5 additions and 11 deletions
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16
library/psa_crypto.c
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@ -4851,17 +4851,11 @@ psa_status_t psa_key_derivation_input_bytes( psa_key_derivation_operation_t *ope
const uint8_t *data, const uint8_t *data,
size_t data_length ) size_t data_length )
{ {
switch( step ) if( step == PSA_KEY_DERIVATION_INPUT_SECRET )
{ return( PSA_ERROR_INVALID_ARGUMENT );
case PSA_KEY_DERIVATION_INPUT_LABEL:
case PSA_KEY_DERIVATION_INPUT_SALT: return( psa_key_derivation_input_internal( operation, step,
case PSA_KEY_DERIVATION_INPUT_INFO: data, data_length ) );
case PSA_KEY_DERIVATION_INPUT_SEED:
return( psa_key_derivation_input_internal( operation, step,
data, data_length ) );
default:
return( PSA_ERROR_INVALID_ARGUMENT );
}
} }
psa_status_t psa_key_derivation_input_key( psa_key_derivation_operation_t *operation, psa_status_t psa_key_derivation_input_key( psa_key_derivation_operation_t *operation,