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Improve parameter checking in psa_export_public_key_iop_setup()

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2024-11-27 15:44:53 +00:00
parent b30233f6c3
commit 84cc90f63a
1 changed files with 7 additions and 2 deletions
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9
tf-psa-crypto/core/psa_crypto.c
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@ -1714,18 +1714,23 @@ psa_status_t psa_export_public_key_iop_setup(psa_export_public_key_iop_t *operat
}
private_key_attributes = slot->attr;
if (status != PSA_SUCCESS) {
private_key_type = psa_get_key_type(&private_key_attributes);
if (!PSA_KEY_TYPE_IS_KEY_PAIR(private_key_type)) {
status = PSA_ERROR_INVALID_ARGUMENT;
goto exit;
}
private_key_type = psa_get_key_type(&private_key_attributes);
if (!PSA_KEY_TYPE_IS_ECC_KEY_PAIR(private_key_type)) {
status = PSA_ERROR_NOT_SUPPORTED;
goto exit;
}
key_size = PSA_EXPORT_KEY_OUTPUT_SIZE(private_key_type,
psa_get_key_bits(&private_key_attributes));
if (key_size == 0) {
status = PSA_ERROR_INVALID_ARGUMENT;
goto exit;
}