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Pass key buffer size into psa_aead_setup

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2021-05-12 12:22:28 +01:00
parent a559b3ce56
commit cc35859739
1 changed files with 15 additions and 10 deletions
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25
library/psa_crypto_aead.c
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@ -42,6 +42,7 @@ static psa_status_t psa_aead_setup(
mbedtls_psa_aead_operation_t *operation,
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size,
psa_algorithm_t alg )
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
@ -50,6 +51,8 @@ static psa_status_t psa_aead_setup(
mbedtls_cipher_id_t cipher_id;
size_t full_tag_length = 0;
( void ) key_buffer_size;
key_bits = attributes->core.bits;
cipher_info = mbedtls_cipher_info_from_psa( alg,
@ -145,9 +148,10 @@ psa_status_t mbedtls_psa_aead_encrypt(
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
mbedtls_psa_aead_operation_t operation = MBEDTLS_PSA_AEAD_OPERATION_INIT;
uint8_t *tag;
(void) key_buffer_size;
status = psa_aead_setup( &operation, attributes, key_buffer, alg );
status = psa_aead_setup( &operation, attributes, key_buffer,
key_buffer_size, alg );
if( status != PSA_SUCCESS )
goto exit;
@ -255,9 +259,10 @@ psa_status_t mbedtls_psa_aead_decrypt(
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
mbedtls_psa_aead_operation_t operation = MBEDTLS_PSA_AEAD_OPERATION_INIT;
const uint8_t *tag = NULL;
(void) key_buffer_size;
status = psa_aead_setup( &operation, attributes, key_buffer, alg );
status = psa_aead_setup( &operation, attributes, key_buffer,
key_buffer_size, alg );
if( status != PSA_SUCCESS )
goto exit;
@ -342,9 +347,8 @@ psa_status_t mbedtls_psa_aead_encrypt_setup( mbedtls_psa_aead_operation_t
{
psa_status_t status;
(void) key_buffer_size;
status = psa_aead_setup( operation, attributes, key_buffer, alg );
status = psa_aead_setup( operation, attributes, key_buffer,
key_buffer_size, alg );
if( status == PSA_SUCCESS )
{
@ -368,7 +372,8 @@ psa_status_t mbedtls_psa_aead_decrypt_setup( mbedtls_psa_aead_operation_t
(void) key_buffer_size;
status = psa_aead_setup( operation, attributes, key_buffer, alg );
status = psa_aead_setup( operation, attributes, key_buffer,
key_buffer_size, alg );
if( status == PSA_SUCCESS )
{
@ -448,8 +453,8 @@ psa_status_t mbedtls_psa_aead_set_lengths( mbedtls_psa_aead_operation_t
if( operation->alg == PSA_ALG_GCM )
{
/* Lengths can only be too large for GCM if size_t is bigger than 32
* bits. Without the guard this code will generate warnings on 32bit
builds */
* bits. Without th
e guard this code will generate warnings on 32bit builds*/
#if SIZE_MAX > UINT32_MAX
if( ( (uint64_t) ad_length ) >> 61 != 0 ||
( (uint64_t) plaintext_length ) > 0xFFFFFFFE0ull )