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Replace AES_CMAC_128_PRF_OUTPUT_SIZE with PSA_MAC_LENGTH()

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Signed-off-by: Kusumit Ghoderao <Kusumit.Ghoderao@silabs.com>
This commit is contained in:
Kusumit Ghoderao 2023-07-27 21:18:30 +05:30
parent 9ab03c3d72
commit a12e2d53bd
2 changed files with 9 additions and 10 deletions
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3
include/psa/crypto_sizes.h
View File

@ -276,9 +276,6 @@
* This is a vendor-specific macro. This can be configured if necessary */
#define PSA_VENDOR_PBKDF2_MAX_ITERATIONS 0xffffffff
/* Output size of AES_CMAC_PRF_128 algorithm */
#define PSA_AES_CMAC_PRF_128_OUTPUT_SIZE 16
/** The maximum size of a block cipher. */
#define PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE 16

16
library/psa_crypto.c
View File

@ -5611,7 +5611,7 @@ static psa_status_t psa_key_derivation_pbkdf2_read(
psa_set_key_type(&attributes, PSA_KEY_TYPE_HMAC);
} else if (kdf_alg == PSA_ALG_PBKDF2_AES_CMAC_PRF_128) {
prf_alg = PSA_ALG_CMAC;
prf_output_length = PSA_AES_CMAC_PRF_128_OUTPUT_SIZE;
prf_output_length = PSA_MAC_LENGTH(PSA_KEY_TYPE_AES, 128U, PSA_ALG_CMAC);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
} else {
return PSA_ERROR_INVALID_ARGUMENT;
@ -6177,7 +6177,7 @@ static psa_status_t psa_key_derivation_setup_kdf(
if (kdf_alg == PSA_ALG_TLS12_ECJPAKE_TO_PMS) {
hash_size = PSA_HASH_LENGTH(PSA_ALG_SHA_256);
} else if (kdf_alg == PSA_ALG_PBKDF2_AES_CMAC_PRF_128) {
hash_size = PSA_AES_CMAC_PRF_128_OUTPUT_SIZE;
hash_size = PSA_MAC_LENGTH(PSA_KEY_TYPE_AES, 128U, PSA_ALG_CMAC);
} else {
if (hash_size == 0) {
return PSA_ERROR_NOT_SUPPORTED;
@ -6730,23 +6730,25 @@ static psa_status_t psa_pbkdf2_cmac_set_password(const uint8_t *input,
size_t *output_len)
{
psa_status_t status = PSA_SUCCESS;
if (input_len != PSA_AES_CMAC_PRF_128_OUTPUT_SIZE) {
if (input_len != PSA_MAC_LENGTH(PSA_KEY_TYPE_AES, 128U, PSA_ALG_CMAC)) {
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t zeros[16] = { 0 };
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, PSA_BYTES_TO_BITS(sizeof(zeros)));
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_MESSAGE);
/* Passing PSA_AES_CMAC_PRF_128_OUTPUT_SIZE as mac_size as the driver
* function sets mac_output_length = mac_size on success. See #7801*/
/* Passing PSA_MAC_LENGTH(PSA_KEY_TYPE_AES, 128U, PSA_ALG_CMAC) as
* mac_size as the driver function sets mac_output_length = mac_size */
status = psa_driver_wrapper_mac_compute(&attributes,
zeros, sizeof(zeros),
PSA_ALG_CMAC, input, input_len,
output,
PSA_AES_CMAC_PRF_128_OUTPUT_SIZE,
PSA_MAC_LENGTH(PSA_KEY_TYPE_AES,
128U,
PSA_ALG_CMAC),
output_len);
} else {
memcpy(output, input, input_len);
*output_len = PSA_AES_CMAC_PRF_128_OUTPUT_SIZE;
*output_len = PSA_MAC_LENGTH(PSA_KEY_TYPE_AES, 128U, PSA_ALG_CMAC);
}
return status;
}