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psa_asymmetric_encrypt: access the key store and call driver dispatch

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Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
This commit is contained in:
Przemyslaw Stekiel 2021-12-09 11:09:11 +01:00
parent d1d0b41fc0
commit 19e6142214
1 changed files with 7 additions and 73 deletions
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80
library/psa_crypto.c
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@ -3073,80 +3073,14 @@ psa_status_t psa_asymmetric_encrypt( mbedtls_svc_key_id_t key,
goto exit;
}
if( PSA_KEY_TYPE_IS_RSA( slot->attr.type ) )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
mbedtls_rsa_context *rsa = NULL;
status = mbedtls_psa_rsa_load_representation( slot->attr.type,
slot->key.data,
slot->key.bytes,
&rsa );
if( status != PSA_SUCCESS )
goto rsa_exit;
if( output_size < mbedtls_rsa_get_len( rsa ) )
{
status = PSA_ERROR_BUFFER_TOO_SMALL;
goto rsa_exit;
}
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) ||
* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) */
if( alg == PSA_ALG_RSA_PKCS1V15_CRYPT )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT)
status = mbedtls_to_psa_error(
mbedtls_rsa_pkcs1_encrypt( rsa,
mbedtls_psa_get_random,
MBEDTLS_PSA_RANDOM_STATE,
input_length,
input,
output ) );
#else
status = PSA_ERROR_NOT_SUPPORTED;
#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT */
}
else
if( PSA_ALG_IS_RSA_OAEP( alg ) )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
status = mbedtls_to_psa_error(
psa_rsa_oaep_set_padding_mode( alg, rsa ) );
if( status != PSA_SUCCESS )
goto rsa_exit;
status = mbedtls_to_psa_error(
mbedtls_rsa_rsaes_oaep_encrypt( rsa,
mbedtls_psa_get_random,
MBEDTLS_PSA_RANDOM_STATE,
salt, salt_length,
input_length,
input,
output ) );
#else
status = PSA_ERROR_NOT_SUPPORTED;
#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP */
}
else
{
status = PSA_ERROR_INVALID_ARGUMENT;
}
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
rsa_exit:
if( status == PSA_SUCCESS )
*output_length = mbedtls_rsa_get_len( rsa );
mbedtls_rsa_free( rsa );
mbedtls_free( rsa );
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) ||
* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) */
}
else
{
status = PSA_ERROR_NOT_SUPPORTED;
}
psa_key_attributes_t attributes = {
.core = slot->attr
};
status = psa_driver_wrapper_asymmetric_encrypt(
&attributes, slot->key.data, slot->key.bytes,
alg, input, input_length, salt, salt_length,
output, output_size, output_length );
exit:
unlock_status = psa_unlock_key_slot( slot );