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Add PSA interuptable key agreement APIs

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy
2024-08-06 10:55:09 +01:00
parent 6eb9df7fc5
commit a2891a9ac9
13 changed files with 560 additions and 29 deletions
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110
scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
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@@ -2701,6 +2701,116 @@ static inline psa_status_t psa_driver_wrapper_key_agreement(
}
}
static inline uint32_t psa_driver_wrapper_key_agreement_get_num_ops(
psa_key_agreement_iop_t *operation)
{
switch( operation->id )
{
/* If uninitialised, return 0, as no work can have been done. */
case 0:
return 0;
case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
return(mbedtls_psa_key_agreement_get_num_ops(&operation->ctx.mbedtls_ctx));
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
}
return 0;
}
static inline psa_status_t psa_driver_wrapper_key_agreement_setup(
psa_key_agreement_iop_t *operation,
const uint8_t *private_key_buffer,
size_t private_key_buffer_len,
const uint8_t *peer_key,
size_t peer_key_length,
const psa_key_attributes_t *attributes)
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
psa_get_key_lifetime(attributes) );
switch( location )
{
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Key is stored in the slot in export representation, so
* cycle through all known transparent accelerators */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
/* Fell through, meaning no accelerator supports this operation */
operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
status = mbedtls_psa_key_agreement_setup(&operation->ctx.mbedtls_ctx, private_key_buffer,
private_key_buffer_len, peer_key,
peer_key_length,
attributes);
break;
/* Add cases for opaque driver here */
default:
/* Key is declared with a lifetime not known to us */
status = PSA_ERROR_INVALID_ARGUMENT;
break;
}
return( status );
}
static inline psa_status_t psa_driver_wrapper_key_agreement_complete(
psa_key_agreement_iop_t *operation,
uint8_t *shared_secret,
size_t shared_secret_size,
size_t *shared_secret_length)
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
switch( operation->id )
{
case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
status = mbedtls_psa_key_agreement_complete(&operation->ctx.mbedtls_ctx, shared_secret,
shared_secret_size,
shared_secret_length);
break;
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
default:
status = PSA_ERROR_INVALID_ARGUMENT;
break;
}
return( status );
}
static inline psa_status_t psa_driver_wrapper_key_agreement_abort(
psa_key_agreement_iop_t *operation)
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
switch( operation->id )
{
case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
status = mbedtls_psa_key_agreement_abort(&operation->ctx.mbedtls_ctx);
break;
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
default:
status = PSA_ERROR_INVALID_ARGUMENT;
break;
}
return( status );
}
static inline psa_status_t psa_driver_wrapper_pake_setup(
psa_pake_operation_t *operation,
const psa_crypto_driver_pake_inputs_t *inputs )