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psa: Call sign/verify hash software implementation as a driver

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-12-08 18:06:03 +01:00
parent 36f641bd16
commit fce9df2cad
2 changed files with 34 additions and 62 deletions
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20
library/psa_crypto.c
View File

@ -3459,16 +3459,6 @@ psa_status_t psa_sign_hash( mbedtls_svc_key_id_t key,
alg, hash, hash_length,
signature, signature_size, signature_length );
if( status != PSA_ERROR_NOT_SUPPORTED ||
psa_key_lifetime_is_external( slot->attr.lifetime ) )
goto exit;
/* If the operation was not supported by any accelerator, try fallback. */
status = psa_sign_hash_internal(
&attributes, slot->key.data, slot->key.bytes,
alg, hash, hash_length,
signature, signature_size, signature_length );
exit:
/* Fill the unused part of the output buffer (the whole buffer on error,
* the trailing part on success) with something that isn't a valid mac
@ -3584,16 +3574,6 @@ psa_status_t psa_verify_hash( mbedtls_svc_key_id_t key,
alg, hash, hash_length,
signature, signature_length );
if( status != PSA_ERROR_NOT_SUPPORTED ||
psa_key_lifetime_is_external( slot->attr.lifetime ) )
goto exit;
status = psa_verify_hash_internal(
&attributes, slot->key.data, slot->key.bytes,
alg, hash, hash_length,
signature, signature_length );
exit:
unlock_status = psa_unlock_key_slot( slot );
return( ( status == PSA_SUCCESS ) ? unlock_status : status );

76
library/psa_crypto_driver_wrappers.c
View File

@ -65,7 +65,6 @@ psa_status_t psa_driver_wrapper_sign_hash(
{
(void)key_buffer_size;
#if defined(PSA_CRYPTO_DRIVER_PRESENT)
/* Try dynamically-registered SE interface first */
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
const psa_drv_se_t *drv;
@ -86,9 +85,7 @@ psa_status_t psa_driver_wrapper_sign_hash(
}
#endif /* PSA_CRYPTO_SE_C */
/* Then try accelerator API */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_key_location_t location =
PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
@ -97,6 +94,7 @@ psa_status_t psa_driver_wrapper_sign_hash(
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)
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_signature_sign_hash( attributes,
key_buffer,
@ -111,9 +109,20 @@ psa_status_t psa_driver_wrapper_sign_hash(
if( status != PSA_ERROR_NOT_SUPPORTED )
return( status );
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
/* Fell through, meaning no accelerator supports this operation */
return( PSA_ERROR_NOT_SUPPORTED );
return( psa_sign_hash_internal( attributes,
key_buffer,
key_buffer_size,
alg,
hash,
hash_length,
signature,
signature_size,
signature_length ) );
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
return( test_opaque_signature_sign_hash( attributes,
@ -126,25 +135,12 @@ psa_status_t psa_driver_wrapper_sign_hash(
signature_size,
signature_length ) );
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
default:
/* Key is declared with a lifetime not known to us */
return( status );
(void)status;
return( PSA_ERROR_INVALID_ARGUMENT );
}
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)attributes;
(void)key_buffer;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_size;
(void)signature_length;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_verify_hash(
@ -155,7 +151,6 @@ psa_status_t psa_driver_wrapper_verify_hash(
{
(void)key_buffer_size;
#if defined(PSA_CRYPTO_DRIVER_PRESENT)
/* Try dynamically-registered SE interface first */
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
const psa_drv_se_t *drv;
@ -176,9 +171,7 @@ psa_status_t psa_driver_wrapper_verify_hash(
}
#endif /* PSA_CRYPTO_SE_C */
/* Then try accelerator API */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_key_location_t location =
PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
@ -187,6 +180,7 @@ psa_status_t psa_driver_wrapper_verify_hash(
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)
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_signature_verify_hash( attributes,
key_buffer,
@ -200,9 +194,19 @@ psa_status_t psa_driver_wrapper_verify_hash(
if( status != PSA_ERROR_NOT_SUPPORTED )
return( status );
#endif /* PSA_CRYPTO_DRIVER_TEST */
/* Fell through, meaning no accelerator supports this operation */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( psa_verify_hash_internal( attributes,
key_buffer,
key_buffer_size,
alg,
hash,
hash_length,
signature,
signature_length ) );
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
return( test_opaque_signature_verify_hash( attributes,
@ -214,24 +218,12 @@ psa_status_t psa_driver_wrapper_verify_hash(
signature,
signature_length ) );
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
default:
/* Key is declared with a lifetime not known to us */
return( status );
(void)status;
return( PSA_ERROR_INVALID_ARGUMENT );
}
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)attributes;
(void)key_buffer;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_length;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
/** Get the key buffer size for the key material of a generated key in the