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Allow PSA to not support RSA keys with non-byte-aligned sizes

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Work around https://github.com/Mbed-TLS/mbedtls/issues/9048

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-04-22 17:18:13 +02:00
parent 401d6dc66c
commit e6b6c14081
1 changed files with 13 additions and 1 deletions
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14
tests/suites/test_suite_pkparse.function
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@ -47,7 +47,19 @@ static int test_psa_bridge(const mbedtls_pk_context *ctx,
int ok = 0;
TEST_EQUAL(mbedtls_pk_get_psa_attributes(ctx, usage_flag, &attributes), 0);
TEST_EQUAL(mbedtls_pk_import_into_psa(ctx, &attributes, &psa_key), 0);
int ret = mbedtls_pk_import_into_psa(ctx, &attributes, &psa_key);
if (mbedtls_pk_get_type(ctx) == MBEDTLS_PK_RSA &&
mbedtls_pk_get_bitlen(ctx) % 8 != 0 &&
ret == MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) {
/* There is a historical limitation with support for RSA keys in PSA:
* only byte-aligned sizes are supported.
* https://github.com/Mbed-TLS/mbedtls/issues/9048
* For now, for such keys, treat not-supported from PSA as a success.
*/
ok = 1;
goto exit;
}
TEST_EQUAL(ret, 0);
if (!mbedtls_test_key_consistency_psa_pk(psa_key, ctx)) {
goto exit;
}