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test_suite_pk: fix RSA issue in pk_psa_sign() when !PK_[PARSE|WRITE]_C are defined

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This bug was not found until now because:
- !PK_[WRITE|PARSE]_C is only tested in component_full_no_pkparse_pkwrite()
- the test only case concerning RSA key had MBEDTLS_PK_WRITE_C as dependency
  so it was not executed in that component.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commit is contained in:
Valerio Setti 2024-03-19 15:08:53 +01:00
parent c262561424
commit d971b7834b
2 changed files with 27 additions and 12 deletions
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2
tests/suites/test_suite_pk.data
View File

@ -684,7 +684,7 @@ depends_on:MBEDTLS_PK_CAN_ECDSA_SIGN:MBEDTLS_ECP_HAVE_BP512R1
pk_psa_sign:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_BRAINPOOL_P_R1):512
PSA wrapped sign: RSA PKCS1 v1.5
depends_on:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_GENPRIME:MBEDTLS_PK_WRITE_C
depends_on:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_GENPRIME
pk_psa_sign:PSA_KEY_TYPE_RSA_KEY_PAIR:1024
PK sign ext: RSA2048, PK_RSA, MD_SHA256

37
tests/suites/test_suite_pk.function
View File

@ -1875,12 +1875,21 @@ void pk_psa_sign(int psa_type, int bits)
legacy_pub_key + sizeof(legacy_pub_key) - legacy_pub_key_len,
legacy_pub_key_len);
#else /* MBEDTLS_PK_WRITE_C */
ret = mbedtls_ecp_point_write_binary(&(mbedtls_pk_ec_ro(pk)->grp),
&(mbedtls_pk_ec_ro(pk)->Q),
MBEDTLS_ECP_PF_UNCOMPRESSED,
&legacy_pub_key_len, legacy_pub_key,
sizeof(legacy_pub_key));
TEST_EQUAL(ret, 0);
if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(psa_type)) {
TEST_EQUAL(mbedtls_ecp_point_write_binary(&(mbedtls_pk_ec_ro(pk)->grp),
&(mbedtls_pk_ec_ro(pk)->Q),
MBEDTLS_ECP_PF_UNCOMPRESSED,
&legacy_pub_key_len, legacy_pub_key,
sizeof(legacy_pub_key)), 0);
} else {
unsigned char *end = legacy_pub_key + sizeof(legacy_pub_key);
ret = mbedtls_rsa_write_pubkey(mbedtls_pk_rsa(pk), legacy_pub_key, &end);
legacy_pub_key_len = (size_t) ret;
TEST_ASSERT(legacy_pub_key_len > 0);
/* mbedtls_rsa_write_pubkey() writes data backward in the buffer so
* we shift that to the origin of the buffer instead. */
memmove(legacy_pub_key, end, legacy_pub_key_len);
}
#endif /* MBEDTLS_PK_WRITE_C */
/* Turn the PK context into an opaque one. */
@ -1939,11 +1948,17 @@ void pk_psa_sign(int psa_type, int bits)
#if defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_PK_PARSE_C)
TEST_EQUAL(mbedtls_pk_parse_public_key(&pk, legacy_pub_key, legacy_pub_key_len), 0);
#else
TEST_EQUAL(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)), 0);
TEST_EQUAL(mbedtls_ecp_group_load(&(mbedtls_pk_ec_rw(pk)->grp), ecp_grp_id), 0);
TEST_EQUAL(mbedtls_ecp_point_read_binary(&(mbedtls_pk_ec_ro(pk)->grp),
&(mbedtls_pk_ec_rw(pk)->Q),
legacy_pub_key, legacy_pub_key_len), 0);
if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(psa_type)) {
TEST_EQUAL(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)), 0);
TEST_EQUAL(mbedtls_ecp_group_load(&(mbedtls_pk_ec_rw(pk)->grp), ecp_grp_id), 0);
TEST_EQUAL(mbedtls_ecp_point_read_binary(&(mbedtls_pk_ec_ro(pk)->grp),
&(mbedtls_pk_ec_rw(pk)->Q),
legacy_pub_key, legacy_pub_key_len), 0);
} else {
TEST_EQUAL(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)), 0);
TEST_EQUAL(mbedtls_rsa_parse_pubkey(mbedtls_pk_rsa(pk), legacy_pub_key,
legacy_pub_key_len), 0);
}
#endif
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_SHA256,
hash, sizeof(hash), sig, sig_len) == 0);