eden-emu/mbedtls
15
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

add input salt function for pbkdf2

Browse source 
Signed-off-by: Kusumit Ghoderao <Kusumit.Ghoderao@silabs.com>
This commit is contained in:
Kusumit Ghoderao 2023-05-03 12:18:19 +05:30
parent 944bba1e30
commit 547a6c6fd1
1 changed files with 44 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

44
library/psa_crypto.c
View file

@ -6411,6 +6411,50 @@ static psa_status_t psa_pbkdf2_set_input_cost(
return PSA_SUCCESS;
}
static psa_status_t psa_pbkdf2_set_salt(psa_pbkdf2_key_derivation_t *pbkdf2,
const uint8_t *data,
size_t data_length)
{
uint8_t *prev_salt;
size_t prev_salt_length;
if (pbkdf2->state != PSA_PBKDF2_STATE_INPUT_COST_SET &&
pbkdf2->state != PSA_PBKDF2_STATE_SALT_SET) {
return PSA_ERROR_BAD_STATE;
}
if (data_length != 0) {
if (pbkdf2->state == PSA_PBKDF2_STATE_INPUT_COST_SET) {
pbkdf2->salt = mbedtls_calloc(1, data_length);
if (pbkdf2->salt == NULL) {
return PSA_ERROR_INSUFFICIENT_MEMORY;
}
memcpy(pbkdf2->salt, data, data_length);
pbkdf2->salt_length = data_length;
} else if (pbkdf2->state == PSA_PBKDF2_STATE_SALT_SET) {
prev_salt = pbkdf2->salt;
prev_salt_length = pbkdf2->salt_length;
pbkdf2->salt = mbedtls_calloc(1, data_length + prev_salt_length);
if (pbkdf2->salt == NULL) {
return PSA_ERROR_INSUFFICIENT_MEMORY;
}
memcpy(pbkdf2->salt, prev_salt, prev_salt_length);
memcpy(pbkdf2->salt + prev_salt_length, data,
data_length);
pbkdf2->salt_length += data_length;
mbedtls_free(prev_salt);
}
} else {
return PSA_ERROR_INVALID_ARGUMENT;
}
pbkdf2->state = PSA_PBKDF2_STATE_SALT_SET;
return PSA_SUCCESS;
}
#endif /* MBEDTLS_PSA_BUILTIN_ALG_PBKDF2_HMAC */
/** Check whether the given key type is acceptable for the given