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Refactor interuptible key agreement testing helper function

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2024-09-04 18:40:53 +01:00
parent 26136ec98b
commit 57fb2a687c
1 changed files with 22 additions and 18 deletions
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40
tf-psa-crypto/tests/suites/test_suite_psa_crypto.function
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@ -1237,24 +1237,28 @@ static void interruptible_signverify_get_minmax_completes(uint32_t max_ops,
static uint32_t interruptible_key_agreement_get_min_num_ops(size_t key_bits)
{
uint32_t min_values[3][5] = {
{ 208, 208, 160, 136, 124 }, // P-256
{ 682, 416, 320, 272, 248 }, // P-384
{ 1364, 832, 640, 544, 496 } // P-521
};
int curve_index = -1;
if (key_bits == 256) {
curve_index = 0;
}
if (key_bits == 384) {
curve_index = 1;
}
if (key_bits == 512 || key_bits <= 521) {
curve_index = 2;
}
if (curve_index != -1) {
return min_values[curve_index][6 - MBEDTLS_ECP_WINDOW_SIZE];
/* Those values are taken from documentation of mbedtls_ecp_set_max_ops()
in ecp.h. Those values can change at any time. */
switch (key_bits) {
case 256:
{
const uint32_t min_values[5] = { 208, 208, 160, 136, 124 }; // P-256
return min_values[6 - MBEDTLS_ECP_WINDOW_SIZE];
break;
}
case 384:
{
const uint32_t min_values[5] = { 682, 416, 320, 272, 248 }; // P-384
return min_values[6 - MBEDTLS_ECP_WINDOW_SIZE];
break;
}
case 512:
case 521:
{
const uint32_t min_values[5] = { 1364, 832, 640, 544, 496 }; // P-521
return min_values[6 - MBEDTLS_ECP_WINDOW_SIZE];
break;
}
}
return 0;
}