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polarssl/tests/suites/test_suite_pk.function
Gilles Peskine 7e677fa2c5
Merge pull request #6389 from gilles-peskine-arm/ecdsa-use-psa-without-pkwrite 
Remove pkwrite dependency in pk using PSA for ECDSA
2023-02-28 18:17:16 +01:00

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/* BEGIN_HEADER */
#include "mbedtls/pk.h"
/* For error codes */
#include "mbedtls/asn1.h"
#include "mbedtls/base64.h"
#include "mbedtls/ecp.h"
#include "mbedtls/rsa.h"
#include "hash_info.h"
#include "mbedtls/legacy_or_psa.h"
#include <limits.h>
#include <stdint.h>
/* Needed only for test case data under #if defined(MBEDTLS_USE_PSA_CRYPTO),
* but the test code generator requires test case data to be valid C code
* unconditionally (https://github.com/Mbed-TLS/mbedtls/issues/2023). */
#include "psa/crypto.h"
#define RSA_KEY_SIZE 512
#define RSA_KEY_LEN 64
/** Generate a key of the desired type.
*
* \param pk The PK object to fill. It must have been initialized
* with mbedtls_pk_setup().
* \param parameter - For RSA keys, the key size in bits.
* - For EC keys, the curve (\c MBEDTLS_ECP_DP_xxx).
*
* \return The status from the underlying type-specific key
* generation function.
* \return -1 if the key type is not recognized.
*/
static int pk_genkey(mbedtls_pk_context *pk, int parameter)
{
((void) pk);
(void) parameter;
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_RSA) {
return mbedtls_rsa_gen_key(mbedtls_pk_rsa(*pk),
mbedtls_test_rnd_std_rand, NULL,
parameter, 3);
}
#endif
#if defined(MBEDTLS_ECP_C)
if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECKEY ||
mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECKEY_DH ||
mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECDSA) {
int ret;
if ((ret = mbedtls_ecp_group_load(&mbedtls_pk_ec(*pk)->grp,
parameter)) != 0) {
return ret;
}
return mbedtls_ecp_gen_keypair(&mbedtls_pk_ec(*pk)->grp,
&mbedtls_pk_ec(*pk)->d,
&mbedtls_pk_ec(*pk)->Q,
mbedtls_test_rnd_std_rand, NULL);
}
#endif
return -1;
}
#if defined(MBEDTLS_RSA_C)
int mbedtls_rsa_decrypt_func(void *ctx, size_t *olen,
const unsigned char *input, unsigned char *output,
size_t output_max_len)
{
return mbedtls_rsa_pkcs1_decrypt((mbedtls_rsa_context *) ctx,
mbedtls_test_rnd_std_rand, NULL,
olen, input, output, output_max_len);
}
int mbedtls_rsa_sign_func(void *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_md_type_t md_alg, unsigned int hashlen,
const unsigned char *hash, unsigned char *sig)
{
((void) f_rng);
((void) p_rng);
return mbedtls_rsa_pkcs1_sign((mbedtls_rsa_context *) ctx,
mbedtls_test_rnd_std_rand, NULL,
md_alg, hashlen, hash, sig);
}
size_t mbedtls_rsa_key_len_func(void *ctx)
{
return ((const mbedtls_rsa_context *) ctx)->len;
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/*
* Generate an ECC key using PSA and return the key identifier of that key,
* or 0 if the key generation failed.
* The key uses NIST P-256 and is usable for signing with SHA-256.
*/
mbedtls_svc_key_id_t pk_psa_genkey_ecc(void)
{
mbedtls_svc_key_id_t key;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
const psa_key_type_t type =
PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1);
const size_t bits = 256;
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_HASH);
psa_set_key_algorithm(&attributes, PSA_ALG_ECDSA(PSA_ALG_SHA_256));
psa_set_key_type(&attributes, type);
psa_set_key_bits(&attributes, bits);
PSA_ASSERT(psa_generate_key(&attributes, &key));
exit:
return key;
}
/*
* Generate an RSA key using PSA and return the key identifier of that key,
* or 0 if the key generation failed.
*/
mbedtls_svc_key_id_t pk_psa_genkey_rsa(void)
{
mbedtls_svc_key_id_t key;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
const psa_key_type_t type = PSA_KEY_TYPE_RSA_KEY_PAIR;
const size_t bits = 1024;
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_HASH);
psa_set_key_algorithm(&attributes, PSA_ALG_RSA_PKCS1V15_SIGN_RAW);
psa_set_key_type(&attributes, type);
psa_set_key_bits(&attributes, bits);
PSA_ASSERT(psa_generate_key(&attributes, &key));
exit:
return key;
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PK_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:MBEDTLS_USE_PSA_CRYPTO */
void pk_psa_utils(int key_is_rsa)
{
mbedtls_pk_context pk, pk2;
mbedtls_svc_key_id_t key;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
const char * const name = "Opaque";
size_t bitlen;
mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE;
unsigned char b1[1], b2[1];
size_t len;
mbedtls_pk_debug_item dbg;
PSA_ASSERT(psa_crypto_init());
mbedtls_pk_init(&pk);
mbedtls_pk_init(&pk2);
TEST_ASSERT(psa_crypto_init() == PSA_SUCCESS);
TEST_ASSERT(mbedtls_pk_setup_opaque(&pk, MBEDTLS_SVC_KEY_ID_INIT) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
mbedtls_pk_free(&pk);
mbedtls_pk_init(&pk);
if (key_is_rsa) {
bitlen = 1024; /* hardcoded in genkey() */
key = pk_psa_genkey_rsa();
} else {
bitlen = 256; /* hardcoded in genkey() */
key = pk_psa_genkey_ecc();
}
if (mbedtls_svc_key_id_is_null(key)) {
goto exit;
}
TEST_ASSERT(mbedtls_pk_setup_opaque(&pk, key) == 0);
TEST_ASSERT(mbedtls_pk_get_type(&pk) == MBEDTLS_PK_OPAQUE);
TEST_ASSERT(strcmp(mbedtls_pk_get_name(&pk), name) == 0);
TEST_ASSERT(mbedtls_pk_get_bitlen(&pk) == bitlen);
TEST_ASSERT(mbedtls_pk_get_len(&pk) == bitlen / 8);
if (key_is_rsa) {
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_ECKEY) == 0);
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_ECDSA) == 0);
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_RSA) == 1);
} else {
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_ECKEY) == 1);
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_ECDSA) == 1);
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_RSA) == 0);
}
/* unsupported operations: verify, decrypt, encrypt */
TEST_ASSERT(mbedtls_pk_verify(&pk, md_alg,
b1, sizeof(b1), b2, sizeof(b2))
== MBEDTLS_ERR_PK_TYPE_MISMATCH);
if (key_is_rsa == 0) {
TEST_ASSERT(mbedtls_pk_decrypt(&pk, b1, sizeof(b1),
b2, &len, sizeof(b2),
NULL, NULL)
== MBEDTLS_ERR_PK_TYPE_MISMATCH);
}
TEST_ASSERT(mbedtls_pk_encrypt(&pk, b1, sizeof(b1),
b2, &len, sizeof(b2),
NULL, NULL)
== MBEDTLS_ERR_PK_TYPE_MISMATCH);
/* unsupported functions: check_pair, debug */
if (key_is_rsa) {
TEST_ASSERT(mbedtls_pk_setup(&pk2,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
} else {
TEST_ASSERT(mbedtls_pk_setup(&pk2,
mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)) == 0);
}
TEST_ASSERT(mbedtls_pk_check_pair(&pk, &pk2,
mbedtls_test_rnd_std_rand, NULL)
== MBEDTLS_ERR_PK_TYPE_MISMATCH);
TEST_ASSERT(mbedtls_pk_debug(&pk, &dbg)
== MBEDTLS_ERR_PK_TYPE_MISMATCH);
/* test that freeing the context does not destroy the key */
mbedtls_pk_free(&pk);
TEST_ASSERT(PSA_SUCCESS == psa_get_key_attributes(key, &attributes));
TEST_ASSERT(PSA_SUCCESS == psa_destroy_key(key));
exit:
/*
* Key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes(&attributes);
mbedtls_pk_free(&pk); /* redundant except upon error */
mbedtls_pk_free(&pk2);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_USE_PSA_CRYPTO */
void pk_can_do_ext(int opaque_key, int key_type, int key_usage, int key_alg,
int key_alg2, int parameter, int alg_check, int usage_check,
int result)
{
mbedtls_pk_context pk;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT(psa_crypto_init());
mbedtls_pk_init(&pk);
if (opaque_key == 1) {
psa_set_key_usage_flags(&attributes, key_usage);
psa_set_key_algorithm(&attributes, key_alg);
if (key_alg2 != 0) {
psa_set_key_enrollment_algorithm(&attributes, key_alg2);
}
psa_set_key_type(&attributes, key_type);
psa_set_key_bits(&attributes, parameter);
PSA_ASSERT(psa_generate_key(&attributes, &key));
if (mbedtls_svc_key_id_is_null(key)) {
goto exit;
}
TEST_EQUAL(mbedtls_pk_setup_opaque(&pk, key), 0);
TEST_EQUAL(mbedtls_pk_get_type(&pk), MBEDTLS_PK_OPAQUE);
} else {
TEST_EQUAL(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(key_type)), 0);
TEST_EQUAL(pk_genkey(&pk, parameter), 0);
TEST_EQUAL(mbedtls_pk_get_type(&pk), key_type);
}
TEST_EQUAL(mbedtls_pk_can_do_ext(&pk, alg_check, usage_check), result);
exit:
psa_reset_key_attributes(&attributes);
PSA_ASSERT(psa_destroy_key(key));
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE */
void pk_invalid_param()
{
mbedtls_pk_context ctx;
mbedtls_pk_type_t pk_type = 0;
unsigned char buf[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
size_t buf_size = sizeof(buf);
mbedtls_pk_init(&ctx);
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_verify_restartable(&ctx, MBEDTLS_MD_NONE,
NULL, buf_size,
buf, buf_size,
NULL));
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_verify_restartable(&ctx, MBEDTLS_MD_SHA256,
NULL, 0,
buf, buf_size,
NULL));
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_verify_ext(pk_type, NULL,
&ctx, MBEDTLS_MD_NONE,
NULL, buf_size,
buf, buf_size));
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_verify_ext(pk_type, NULL,
&ctx, MBEDTLS_MD_SHA256,
NULL, 0,
buf, buf_size));
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_sign_restartable(&ctx, MBEDTLS_MD_NONE,
NULL, buf_size,
buf, buf_size, &buf_size,
NULL, NULL,
NULL));
TEST_EQUAL(MBEDTLS_ERR_PK_BAD_INPUT_DATA,
mbedtls_pk_sign_restartable(&ctx, MBEDTLS_MD_SHA256,
NULL, 0,
buf, buf_size, &buf_size,
NULL, NULL,
NULL));
exit:
mbedtls_pk_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void valid_parameters()
{
mbedtls_pk_context pk;
unsigned char buf[1];
size_t len;
void *options = NULL;
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk, NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
/* In informational functions, we accept NULL where a context pointer
* is expected because that's what the library has done forever.
* We do not document that NULL is accepted, so we may wish to change
* the behavior in a future version. */
TEST_ASSERT(mbedtls_pk_get_bitlen(NULL) == 0);
TEST_ASSERT(mbedtls_pk_get_len(NULL) == 0);
TEST_ASSERT(mbedtls_pk_can_do(NULL, MBEDTLS_PK_NONE) == 0);
TEST_ASSERT(mbedtls_pk_sign_restartable(&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf), &len,
mbedtls_test_rnd_std_rand, NULL,
NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_sign_restartable(&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf), &len,
mbedtls_test_rnd_std_rand, NULL,
NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_sign(&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf), &len,
mbedtls_test_rnd_std_rand, NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_verify_restartable(&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf),
NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_verify(&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf)) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_verify_ext(MBEDTLS_PK_NONE, options,
&pk,
MBEDTLS_MD_NONE,
NULL, 0,
buf, sizeof(buf)) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_encrypt(&pk,
NULL, 0,
NULL, &len, 0,
mbedtls_test_rnd_std_rand, NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_decrypt(&pk,
NULL, 0,
NULL, &len, 0,
mbedtls_test_rnd_std_rand, NULL) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
#if defined(MBEDTLS_PK_PARSE_C)
TEST_ASSERT(mbedtls_pk_parse_key(&pk, NULL, 0, NULL, 1,
mbedtls_test_rnd_std_rand, NULL) ==
MBEDTLS_ERR_PK_KEY_INVALID_FORMAT);
TEST_ASSERT(mbedtls_pk_parse_public_key(&pk, NULL, 0) ==
MBEDTLS_ERR_PK_KEY_INVALID_FORMAT);
#endif /* MBEDTLS_PK_PARSE_C */
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PK_WRITE_C */
void valid_parameters_pkwrite(data_t *key_data)
{
mbedtls_pk_context pk;
/* For the write tests to be effective, we need a valid key pair. */
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_parse_key(&pk,
key_data->x, key_data->len, NULL, 0,
mbedtls_test_rnd_std_rand, NULL) == 0);
TEST_ASSERT(mbedtls_pk_write_key_der(&pk, NULL, 0) ==
MBEDTLS_ERR_ASN1_BUF_TOO_SMALL);
TEST_ASSERT(mbedtls_pk_write_pubkey_der(&pk, NULL, 0) ==
MBEDTLS_ERR_ASN1_BUF_TOO_SMALL);
#if defined(MBEDTLS_PEM_WRITE_C)
TEST_ASSERT(mbedtls_pk_write_key_pem(&pk, NULL, 0) ==
MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL);
TEST_ASSERT(mbedtls_pk_write_pubkey_pem(&pk, NULL, 0) ==
MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL);
#endif /* MBEDTLS_PEM_WRITE_C */
exit:
mbedtls_pk_free(&pk);
}
/* END_CASE */
/* BEGIN_CASE */
void pk_utils(int type, int parameter, int bitlen, int len, char *name)
{
mbedtls_pk_context pk;
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(type)) == 0);
TEST_ASSERT(pk_genkey(&pk, parameter) == 0);
TEST_ASSERT((int) mbedtls_pk_get_type(&pk) == type);
TEST_ASSERT(mbedtls_pk_can_do(&pk, type));
TEST_ASSERT(mbedtls_pk_get_bitlen(&pk) == (unsigned) bitlen);
TEST_ASSERT(mbedtls_pk_get_len(&pk) == (unsigned) len);
TEST_ASSERT(strcmp(mbedtls_pk_get_name(&pk), name) == 0);
exit:
mbedtls_pk_free(&pk);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_FS_IO */
void mbedtls_pk_check_pair(char *pub_file, char *prv_file, int ret)
{
mbedtls_pk_context pub, prv, alt;
USE_PSA_INIT();
mbedtls_pk_init(&pub);
mbedtls_pk_init(&prv);
mbedtls_pk_init(&alt);
TEST_ASSERT(mbedtls_pk_parse_public_keyfile(&pub, pub_file) == 0);
TEST_ASSERT(mbedtls_pk_parse_keyfile(&prv, prv_file, NULL,
mbedtls_test_rnd_std_rand, NULL)
== 0);
TEST_ASSERT(mbedtls_pk_check_pair(&pub, &prv,
mbedtls_test_rnd_std_rand, NULL)
== ret);
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
if (mbedtls_pk_get_type(&prv) == MBEDTLS_PK_RSA) {
TEST_ASSERT(mbedtls_pk_setup_rsa_alt(&alt, mbedtls_pk_rsa(prv),
mbedtls_rsa_decrypt_func, mbedtls_rsa_sign_func,
mbedtls_rsa_key_len_func) == 0);
TEST_ASSERT(mbedtls_pk_check_pair(&pub, &alt,
mbedtls_test_rnd_std_rand, NULL)
== ret);
}
#endif
mbedtls_pk_free(&pub);
mbedtls_pk_free(&prv);
mbedtls_pk_free(&alt);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
void pk_rsa_verify_test_vec(data_t *message_str, int digest, int mod,
char *input_N, char *input_E,
data_t *result_str, int result)
{
mbedtls_rsa_context *rsa;
mbedtls_pk_context pk;
mbedtls_pk_restart_ctx *rs_ctx = NULL;
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_pk_restart_ctx ctx;
rs_ctx = &ctx;
mbedtls_pk_restart_init(rs_ctx);
// this setting would ensure restart would happen if ECC was used
mbedtls_ecp_set_max_ops(1);
#endif
USE_PSA_INIT();
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
rsa = mbedtls_pk_rsa(pk);
rsa->len = mod / 8;
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->E, input_E) == 0);
TEST_ASSERT(mbedtls_pk_verify(&pk, digest, message_str->x, 0,
result_str->x, mbedtls_pk_get_len(&pk)) == result);
TEST_ASSERT(mbedtls_pk_verify_restartable(&pk, digest, message_str->x, 0,
result_str->x, mbedtls_pk_get_len(
&pk), rs_ctx) == result);
exit:
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_pk_restart_free(rs_ctx);
#endif
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
void pk_rsa_verify_ext_test_vec(data_t *message_str, int digest,
int mod, char *input_N,
char *input_E, data_t *result_str,
int pk_type, int mgf1_hash_id,
int salt_len, int sig_len,
int result)
{
mbedtls_rsa_context *rsa;
mbedtls_pk_context pk;
mbedtls_pk_rsassa_pss_options pss_opts;
void *options;
int ret;
USE_PSA_INIT();
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
rsa = mbedtls_pk_rsa(pk);
rsa->len = mod / 8;
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->E, input_E) == 0);
if (mgf1_hash_id < 0) {
options = NULL;
} else {
options = &pss_opts;
pss_opts.mgf1_hash_id = mgf1_hash_id;
pss_opts.expected_salt_len = salt_len;
}
ret = mbedtls_pk_verify_ext(pk_type, options, &pk,
digest, message_str->x, message_str->len,
result_str->x, sig_len);
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if (result == MBEDTLS_ERR_RSA_INVALID_PADDING) {
/* Mbed TLS distinguishes "invalid padding" from "valid padding but
* the rest of the signature is invalid". This has little use in
* practice and PSA doesn't report this distinction.
* In this case, PSA returns PSA_ERROR_INVALID_SIGNATURE translated
* to MBEDTLS_ERR_RSA_VERIFY_FAILED.
* However, currently `mbedtls_pk_verify_ext()` may use either the
* PSA or the Mbed TLS API, depending on the PSS options used.
* So, it may return either INVALID_PADDING or INVALID_SIGNATURE.
*/
TEST_ASSERT(ret == result || ret == MBEDTLS_ERR_RSA_VERIFY_FAILED);
} else
#endif
{
TEST_EQUAL(ret, result);
}
exit:
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PK_CAN_ECDSA_VERIFY */
void pk_ec_test_vec(int type, int id, data_t *key, data_t *hash,
data_t *sig, int ret)
{
mbedtls_pk_context pk;
mbedtls_ecp_keypair *eckey;
mbedtls_pk_init(&pk);
USE_PSA_INIT();
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(type)) == 0);
TEST_ASSERT(mbedtls_pk_can_do(&pk, MBEDTLS_PK_ECDSA));
eckey = mbedtls_pk_ec(pk);
TEST_ASSERT(mbedtls_ecp_group_load(&eckey->grp, id) == 0);
TEST_ASSERT(mbedtls_ecp_point_read_binary(&eckey->grp, &eckey->Q,
key->x, key->len) == 0);
// MBEDTLS_MD_NONE is used since it will be ignored.
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_NONE,
hash->x, hash->len, sig->x, sig->len) == ret);
exit:
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE:MBEDTLS_ECDSA_C:MBEDTLS_ECDSA_DETERMINISTIC */
void pk_sign_verify_restart(int pk_type, int grp_id, char *d_str,
char *QX_str, char *QY_str,
int md_alg, data_t *hash, data_t *sig_check,
int max_ops, int min_restart, int max_restart)
{
int ret, cnt_restart;
mbedtls_pk_restart_ctx rs_ctx;
mbedtls_pk_context prv, pub;
unsigned char sig[MBEDTLS_ECDSA_MAX_LEN];
size_t slen;
USE_PSA_INIT();
mbedtls_pk_restart_init(&rs_ctx);
mbedtls_pk_init(&prv);
mbedtls_pk_init(&pub);
memset(sig, 0, sizeof(sig));
TEST_ASSERT(mbedtls_pk_setup(&prv, mbedtls_pk_info_from_type(pk_type)) == 0);
TEST_ASSERT(mbedtls_ecp_group_load(&mbedtls_pk_ec(prv)->grp, grp_id) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&mbedtls_pk_ec(prv)->d, d_str) == 0);
TEST_ASSERT(mbedtls_pk_setup(&pub, mbedtls_pk_info_from_type(pk_type)) == 0);
TEST_ASSERT(mbedtls_ecp_group_load(&mbedtls_pk_ec(pub)->grp, grp_id) == 0);
TEST_ASSERT(mbedtls_ecp_point_read_string(&mbedtls_pk_ec(pub)->Q, 16, QX_str, QY_str) == 0);
mbedtls_ecp_set_max_ops(max_ops);
slen = sizeof(sig);
cnt_restart = 0;
do {
ret = mbedtls_pk_sign_restartable(&prv, md_alg, hash->x, hash->len,
sig, sizeof(sig), &slen,
mbedtls_test_rnd_std_rand, NULL,
&rs_ctx);
} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart);
TEST_ASSERT(ret == 0);
TEST_ASSERT(slen == sig_check->len);
TEST_ASSERT(memcmp(sig, sig_check->x, slen) == 0);
TEST_ASSERT(cnt_restart >= min_restart);
TEST_ASSERT(cnt_restart <= max_restart);
cnt_restart = 0;
do {
ret = mbedtls_pk_verify_restartable(&pub, md_alg,
hash->x, hash->len, sig, slen, &rs_ctx);
} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart);
TEST_ASSERT(ret == 0);
TEST_ASSERT(cnt_restart >= min_restart);
TEST_ASSERT(cnt_restart <= max_restart);
sig[0]++;
do {
ret = mbedtls_pk_verify_restartable(&pub, md_alg,
hash->x, hash->len, sig, slen, &rs_ctx);
} while (ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
TEST_ASSERT(ret != 0);
sig[0]--;
/* Do we leak memory when aborting? try verify then sign
* This test only makes sense when we actually restart */
if (min_restart > 0) {
ret = mbedtls_pk_verify_restartable(&pub, md_alg,
hash->x, hash->len, sig, slen, &rs_ctx);
TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
mbedtls_pk_restart_free(&rs_ctx);
slen = sizeof(sig);
ret = mbedtls_pk_sign_restartable(&prv, md_alg, hash->x, hash->len,
sig, sizeof(sig), &slen,
mbedtls_test_rnd_std_rand, NULL,
&rs_ctx);
TEST_ASSERT(ret == MBEDTLS_ERR_ECP_IN_PROGRESS);
}
exit:
mbedtls_pk_restart_free(&rs_ctx);
mbedtls_pk_free(&prv);
mbedtls_pk_free(&pub);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
void pk_sign_verify(int type, int parameter, int sign_ret, int verify_ret)
{
mbedtls_pk_context pk;
size_t sig_len;
unsigned char hash[32]; // Hard-coded for SHA256
size_t hash_len = sizeof(hash);
unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
void *rs_ctx = NULL;
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_pk_restart_ctx ctx;
rs_ctx = &ctx;
mbedtls_pk_restart_init(rs_ctx);
/* This value is large enough that the operation will complete in one run.
* See comments at the top of ecp_test_vect_restart in
* test_suite_ecp.function for estimates of operation counts. */
mbedtls_ecp_set_max_ops(42000);
#endif
mbedtls_pk_init(&pk);
USE_PSA_INIT();
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(type)) == 0);
TEST_ASSERT(pk_genkey(&pk, parameter) == 0);
TEST_ASSERT(mbedtls_pk_sign_restartable(&pk, MBEDTLS_MD_SHA256,
hash, hash_len,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL,
rs_ctx) == sign_ret);
if (sign_ret == 0) {
TEST_ASSERT(sig_len <= MBEDTLS_PK_SIGNATURE_MAX_SIZE);
} else {
sig_len = MBEDTLS_PK_SIGNATURE_MAX_SIZE;
}
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_SHA256,
hash, hash_len, sig, sig_len) == verify_ret);
if (verify_ret == 0) {
hash[0]++;
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_SHA256,
hash, hash_len, sig, sig_len) != 0);
hash[0]--;
sig[0]++;
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_SHA256,
hash, hash_len, sig, sig_len) != 0);
sig[0]--;
}
TEST_ASSERT(mbedtls_pk_sign(&pk, MBEDTLS_MD_SHA256, hash, hash_len,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand,
NULL) == sign_ret);
if (sign_ret == 0) {
TEST_ASSERT(sig_len <= MBEDTLS_PK_SIGNATURE_MAX_SIZE);
} else {
sig_len = MBEDTLS_PK_SIGNATURE_MAX_SIZE;
}
TEST_ASSERT(mbedtls_pk_verify_restartable(&pk, MBEDTLS_MD_SHA256,
hash, hash_len, sig, sig_len, rs_ctx) == verify_ret);
if (verify_ret == 0) {
hash[0]++;
TEST_ASSERT(mbedtls_pk_verify_restartable(&pk, MBEDTLS_MD_SHA256,
hash, sizeof(hash), sig, sig_len, rs_ctx) != 0);
hash[0]--;
sig[0]++;
TEST_ASSERT(mbedtls_pk_verify_restartable(&pk, MBEDTLS_MD_SHA256,
hash, sizeof(hash), sig, sig_len, rs_ctx) != 0);
sig[0]--;
}
exit:
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_pk_restart_free(rs_ctx);
#endif
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
void pk_rsa_encrypt_decrypt_test(data_t *message, int mod,
char *input_P, char *input_Q,
char *input_N, char *input_E,
int ret)
{
unsigned char output[300], result[300];
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi N, P, Q, E;
mbedtls_rsa_context *rsa;
mbedtls_pk_context pk;
size_t olen, rlen;
mbedtls_pk_init(&pk);
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
memset(output, 0, sizeof(output));
USE_PSA_INIT();
/* encryption test */
/* init pk-rsa context */
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
rsa = mbedtls_pk_rsa(pk);
/* load public key */
rsa->len = mod / 8;
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&rsa->E, input_E) == 0);
TEST_ASSERT(mbedtls_pk_encrypt(&pk, message->x, message->len,
output, &olen, sizeof(output),
mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
/* decryption test */
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
/* init pk-rsa context */
mbedtls_pk_free(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
rsa = mbedtls_pk_rsa(pk);
/* load public key */
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
/* load private key */
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_rsa_import(rsa, &N, &P, &Q, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(rsa) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(rsa) == 0);
memset(result, 0, sizeof(result));
rlen = 0;
TEST_ASSERT(mbedtls_pk_decrypt(&pk, output, olen,
result, &rlen, sizeof(result),
mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
if (ret == 0) {
TEST_ASSERT(rlen == message->len);
TEST_ASSERT(memcmp(result, message->x, rlen) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
void pk_rsa_decrypt_test_vec(data_t *cipher, int mod,
char *input_P, char *input_Q,
char *input_N, char *input_E,
data_t *clear, int ret)
{
unsigned char output[256];
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi N, P, Q, E;
mbedtls_rsa_context *rsa;
mbedtls_pk_context pk;
size_t olen;
USE_PSA_INIT();
mbedtls_pk_init(&pk);
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
/* init pk-rsa context */
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
rsa = mbedtls_pk_rsa(pk);
/* load public key */
TEST_ASSERT(mbedtls_test_read_mpi(&N, input_N) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&E, input_E) == 0);
/* load private key */
TEST_ASSERT(mbedtls_test_read_mpi(&P, input_P) == 0);
TEST_ASSERT(mbedtls_test_read_mpi(&Q, input_Q) == 0);
TEST_ASSERT(mbedtls_rsa_import(rsa, &N, &P, &Q, NULL, &E) == 0);
TEST_ASSERT(mbedtls_rsa_get_len(rsa) == (size_t) (mod / 8));
TEST_ASSERT(mbedtls_rsa_complete(rsa) == 0);
/* decryption test */
memset(output, 0, sizeof(output));
olen = 0;
TEST_ASSERT(mbedtls_pk_decrypt(&pk, cipher->x, cipher->len,
output, &olen, sizeof(output),
mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
if (ret == 0) {
TEST_ASSERT(olen == clear->len);
TEST_ASSERT(memcmp(output, clear->x, olen) == 0);
}
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C:MBEDTLS_USE_PSA_CRYPTO */
void pk_wrap_rsa_decrypt_test_vec(data_t *cipher, int mod,
char *input_P, char *input_Q,
char *input_N, char *input_E,
data_t *clear, int ret)
{
unsigned char output[256];
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_mpi N, P, Q, E;
mbedtls_rsa_context *rsa;
mbedtls_pk_context pk;
mbedtls_svc_key_id_t key_id;
size_t olen;
USE_PSA_INIT();
mbedtls_pk_init(&pk);
mbedtls_mpi_init(&N); mbedtls_mpi_init(&P);
mbedtls_mpi_init(&Q); mbedtls_mpi_init(&E);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
/* init pk-rsa context */
TEST_EQUAL(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)), 0);
rsa = mbedtls_pk_rsa(pk);
/* load public key */
TEST_EQUAL(mbedtls_test_read_mpi(&N, input_N), 0);
TEST_EQUAL(mbedtls_test_read_mpi(&E, input_E), 0);
/* load private key */
TEST_EQUAL(mbedtls_test_read_mpi(&P, input_P), 0);
TEST_EQUAL(mbedtls_test_read_mpi(&Q, input_Q), 0);
TEST_EQUAL(mbedtls_rsa_import(rsa, &N, &P, &Q, NULL, &E), 0);
TEST_EQUAL(mbedtls_rsa_get_len(rsa), (size_t) (mod / 8));
TEST_EQUAL(mbedtls_rsa_complete(rsa), 0);
/* Turn PK context into an opaque one. */
TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&pk, &key_id,
PSA_ALG_RSA_PKCS1V15_CRYPT,
PSA_KEY_USAGE_DECRYPT,
PSA_ALG_NONE), 0);
/* decryption test */
memset(output, 0, sizeof(output));
olen = 0;
TEST_EQUAL(mbedtls_pk_decrypt(&pk, cipher->x, cipher->len,
output, &olen, sizeof(output),
mbedtls_test_rnd_pseudo_rand, &rnd_info), ret);
if (ret == 0) {
TEST_EQUAL(olen, clear->len);
TEST_EQUAL(memcmp(output, clear->x, olen), 0);
}
TEST_EQUAL(PSA_SUCCESS, psa_destroy_key(key_id));
exit:
mbedtls_mpi_free(&N); mbedtls_mpi_free(&P);
mbedtls_mpi_free(&Q); mbedtls_mpi_free(&E);
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE */
void pk_ec_nocrypt(int type)
{
mbedtls_pk_context pk;
unsigned char output[100];
unsigned char input[100];
mbedtls_test_rnd_pseudo_info rnd_info;
size_t olen = 0;
int ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
mbedtls_pk_init(&pk);
memset(&rnd_info, 0, sizeof(mbedtls_test_rnd_pseudo_info));
memset(output, 0, sizeof(output));
memset(input, 0, sizeof(input));
TEST_ASSERT(mbedtls_pk_setup(&pk, mbedtls_pk_info_from_type(type)) == 0);
TEST_ASSERT(mbedtls_pk_encrypt(&pk, input, sizeof(input),
output, &olen, sizeof(output),
mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
TEST_ASSERT(mbedtls_pk_decrypt(&pk, input, sizeof(input),
output, &olen, sizeof(output),
mbedtls_test_rnd_pseudo_rand, &rnd_info) == ret);
exit:
mbedtls_pk_free(&pk);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
void pk_rsa_overflow()
{
mbedtls_pk_context pk;
size_t hash_len = SIZE_MAX, sig_len = SIZE_MAX;
unsigned char hash[50], sig[100];
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
#if defined(MBEDTLS_PKCS1_V21)
TEST_ASSERT(mbedtls_pk_verify_ext(MBEDTLS_PK_RSASSA_PSS, NULL, &pk,
MBEDTLS_MD_NONE, hash, hash_len, sig, sig_len) ==
MBEDTLS_ERR_PK_BAD_INPUT_DATA);
#endif /* MBEDTLS_PKCS1_V21 */
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_NONE, hash, hash_len,
sig, sig_len) == MBEDTLS_ERR_PK_BAD_INPUT_DATA);
TEST_ASSERT(mbedtls_pk_sign(&pk, MBEDTLS_MD_NONE, hash, hash_len,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL)
== MBEDTLS_ERR_PK_BAD_INPUT_DATA);
exit:
mbedtls_pk_free(&pk);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C:MBEDTLS_PK_RSA_ALT_SUPPORT */
void pk_rsa_alt()
{
/*
* An rsa_alt context can only do private operations (decrypt, sign).
* Test it against the public operations (encrypt, verify) of a
* corresponding rsa context.
*/
mbedtls_rsa_context raw;
mbedtls_pk_context rsa, alt;
mbedtls_pk_debug_item dbg_items[10];
unsigned char hash[50], sig[64];
unsigned char msg[50], ciph[64], test[50];
size_t sig_len, ciph_len, test_len;
int ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
USE_PSA_INIT();
mbedtls_rsa_init(&raw);
mbedtls_pk_init(&rsa); mbedtls_pk_init(&alt);
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
memset(msg, 0x2a, sizeof(msg));
memset(ciph, 0, sizeof(ciph));
memset(test, 0, sizeof(test));
/* Initialize PK RSA context with random key */
TEST_ASSERT(mbedtls_pk_setup(&rsa,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
TEST_ASSERT(pk_genkey(&rsa, RSA_KEY_SIZE) == 0);
/* Extract key to the raw rsa context */
TEST_ASSERT(mbedtls_rsa_copy(&raw, mbedtls_pk_rsa(rsa)) == 0);
/* Initialize PK RSA_ALT context */
TEST_ASSERT(mbedtls_pk_setup_rsa_alt(&alt, (void *) &raw,
mbedtls_rsa_decrypt_func, mbedtls_rsa_sign_func,
mbedtls_rsa_key_len_func) == 0);
/* Test administrative functions */
TEST_ASSERT(mbedtls_pk_can_do(&alt, MBEDTLS_PK_RSA));
TEST_ASSERT(mbedtls_pk_get_bitlen(&alt) == RSA_KEY_SIZE);
TEST_ASSERT(mbedtls_pk_get_len(&alt) == RSA_KEY_LEN);
TEST_ASSERT(mbedtls_pk_get_type(&alt) == MBEDTLS_PK_RSA_ALT);
TEST_ASSERT(strcmp(mbedtls_pk_get_name(&alt), "RSA-alt") == 0);
/* Test signature */
#if SIZE_MAX > UINT_MAX
TEST_ASSERT(mbedtls_pk_sign(&alt, MBEDTLS_MD_NONE, hash, SIZE_MAX,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL)
== MBEDTLS_ERR_PK_BAD_INPUT_DATA);
#endif /* SIZE_MAX > UINT_MAX */
TEST_ASSERT(mbedtls_pk_sign(&alt, MBEDTLS_MD_NONE, hash, sizeof(hash),
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL)
== 0);
TEST_ASSERT(sig_len == RSA_KEY_LEN);
TEST_ASSERT(mbedtls_pk_verify(&rsa, MBEDTLS_MD_NONE,
hash, sizeof(hash), sig, sig_len) == 0);
/* Test decrypt */
TEST_ASSERT(mbedtls_pk_encrypt(&rsa, msg, sizeof(msg),
ciph, &ciph_len, sizeof(ciph),
mbedtls_test_rnd_std_rand, NULL) == 0);
TEST_ASSERT(mbedtls_pk_decrypt(&alt, ciph, ciph_len,
test, &test_len, sizeof(test),
mbedtls_test_rnd_std_rand, NULL) == 0);
TEST_ASSERT(test_len == sizeof(msg));
TEST_ASSERT(memcmp(test, msg, test_len) == 0);
/* Test forbidden operations */
TEST_ASSERT(mbedtls_pk_encrypt(&alt, msg, sizeof(msg),
ciph, &ciph_len, sizeof(ciph),
mbedtls_test_rnd_std_rand, NULL) == ret);
TEST_ASSERT(mbedtls_pk_verify(&alt, MBEDTLS_MD_NONE,
hash, sizeof(hash), sig, sig_len) == ret);
TEST_ASSERT(mbedtls_pk_debug(&alt, dbg_items) == ret);
exit:
mbedtls_rsa_free(&raw);
mbedtls_pk_free(&rsa); mbedtls_pk_free(&alt);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA:MBEDTLS_USE_PSA_CRYPTO */
void pk_psa_sign(int parameter_arg,
int psa_type_arg, int expected_bits_arg)
{
mbedtls_pk_context pk;
unsigned char hash[32];
unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
unsigned char pkey_legacy[200];
unsigned char pkey_psa[200];
unsigned char *pkey_legacy_start, *pkey_psa_start;
psa_algorithm_t alg_psa;
size_t sig_len, klen_legacy, klen_psa;
int ret;
mbedtls_svc_key_id_t key_id;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t expected_type = psa_type_arg;
size_t expected_bits = expected_bits_arg;
/*
* This tests making signatures with a wrapped PSA key:
* - generate a fresh ECP/RSA legacy PK context
* - wrap it in a PK context and make a signature this way
* - extract the public key
* - parse it to a PK context and verify the signature this way
*/
PSA_ASSERT(psa_crypto_init());
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
if (PSA_KEY_TYPE_IS_RSA(psa_type_arg)) {
/* Create legacy RSA public/private key in PK context. */
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(MBEDTLS_PK_RSA)) == 0);
TEST_ASSERT(mbedtls_rsa_gen_key(mbedtls_pk_rsa(pk),
mbedtls_test_rnd_std_rand, NULL,
parameter_arg, 3) == 0);
alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_SHA_256);
} else
#endif /* MBEDTLS_RSA_C && MBEDTLS_GENPRIME */
#if defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(psa_type_arg)) {
mbedtls_ecp_group_id grpid = parameter_arg;
/* Create legacy EC public/private key in PK context. */
mbedtls_pk_init(&pk);
TEST_ASSERT(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)) == 0);
TEST_ASSERT(mbedtls_ecp_gen_key(grpid,
(mbedtls_ecp_keypair *) pk.pk_ctx,
mbedtls_test_rnd_std_rand, NULL) == 0);
alg_psa = PSA_ALG_ECDSA(PSA_ALG_SHA_256);
} else
#endif /* MBEDTLS_PK_CAN_ECDSA_SIGN */
{
(void) parameter_arg;
TEST_ASSUME(!"Opaque PK key not supported in this configuration");
}
/* Export underlying public key for re-importing in a legacy context. */
#if defined(MBEDTLS_PK_WRITE_C)
ret = mbedtls_pk_write_pubkey_der(&pk, pkey_legacy,
sizeof(pkey_legacy));
TEST_ASSERT(ret >= 0);
klen_legacy = (size_t) ret;
/* mbedtls_pk_write_pubkey_der() writes backwards in the data buffer. */
pkey_legacy_start = pkey_legacy + sizeof(pkey_legacy) - klen_legacy;
#else
ret = mbedtls_ecp_point_write_binary(&(mbedtls_pk_ec(pk)->grp),
&(mbedtls_pk_ec(pk)->Q),
MBEDTLS_ECP_PF_UNCOMPRESSED,
&klen_legacy, pkey_legacy,
sizeof(pkey_legacy));
TEST_EQUAL(ret, 0);
pkey_legacy_start = pkey_legacy;
#endif /* MBEDTLS_PK_WRITE_C */
/* Turn PK context into an opaque one. */
TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&pk, &key_id, alg_psa,
PSA_KEY_USAGE_SIGN_HASH,
PSA_ALG_NONE) == 0);
PSA_ASSERT(psa_get_key_attributes(key_id, &attributes));
TEST_EQUAL(psa_get_key_type(&attributes), expected_type);
TEST_EQUAL(psa_get_key_bits(&attributes), expected_bits);
TEST_EQUAL(psa_get_key_lifetime(&attributes),
PSA_KEY_LIFETIME_VOLATILE);
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
TEST_ASSERT(mbedtls_pk_sign(&pk, MBEDTLS_MD_SHA256,
hash, sizeof(hash), sig, sizeof(sig), &sig_len,
NULL, NULL) == 0);
/* Export underlying public key for re-importing in a psa context. */
#if defined(MBEDTLS_PK_WRITE_C)
ret = mbedtls_pk_write_pubkey_der(&pk, pkey_psa,
sizeof(pkey_psa));
TEST_ASSERT(ret >= 0);
klen_psa = (size_t) ret;
/* mbedtls_pk_write_pubkey_der() writes backwards in the data buffer. */
pkey_psa_start = pkey_psa + sizeof(pkey_psa) - klen_psa;
#else
psa_status_t status;
status = psa_export_public_key(key_id, pkey_psa, sizeof(pkey_psa),
&klen_psa);
TEST_EQUAL(status, PSA_SUCCESS);
pkey_psa_start = pkey_psa;
#endif /* MBEDTLS_PK_WRITE_C */
TEST_ASSERT(klen_psa == klen_legacy);
TEST_ASSERT(memcmp(pkey_psa_start, pkey_legacy_start, klen_psa) == 0);
mbedtls_pk_free(&pk);
TEST_ASSERT(PSA_SUCCESS == psa_destroy_key(key_id));
mbedtls_pk_init(&pk);
/* If we used "pk_write" previously, then we go for a "pk_parse" here;
* otherwise if we went for "ecp_point_write_binary" then we'll go
* for a "ecp_point_read_binary" here. This allows to drop dependencies
* on "PK_WRITE" and "PK_PARSE" if required */
#if defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_PK_PARSE_C)
TEST_EQUAL(mbedtls_pk_parse_public_key(&pk, pkey_legacy_start,
klen_legacy), 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(pk)->grp),
(mbedtls_ecp_group_id) parameter_arg), 0);
TEST_EQUAL(mbedtls_ecp_point_read_binary(&(mbedtls_pk_ec(pk)->grp),
&(mbedtls_pk_ec(pk)->Q),
pkey_legacy_start, klen_legacy), 0);
#endif
TEST_ASSERT(mbedtls_pk_verify(&pk, MBEDTLS_MD_SHA256,
hash, sizeof(hash), sig, sig_len) == 0);
exit:
/*
* Key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes(&attributes);
mbedtls_pk_free(&pk);
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_GENPRIME */
void pk_psa_sign_ext(int pk_type, int parameter, int key_pk_type, int md_alg)
{
/* See the description of pk_genkey() for the description of the `parameter` argument. */
mbedtls_pk_context pk;
size_t sig_len;
unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
unsigned char hash[PSA_HASH_MAX_SIZE];
size_t hash_len = mbedtls_hash_info_get_size(md_alg);
void const *options = NULL;
mbedtls_pk_rsassa_pss_options rsassa_pss_options;
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
mbedtls_pk_init(&pk);
PSA_INIT();
TEST_ASSERT(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(pk_type)) == 0);
TEST_ASSERT(pk_genkey(&pk, parameter) == 0);
TEST_ASSERT(mbedtls_pk_sign_ext(key_pk_type, &pk, md_alg, hash, hash_len,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL) == 0);
if (key_pk_type == MBEDTLS_PK_RSASSA_PSS) {
rsassa_pss_options.mgf1_hash_id = md_alg;
TEST_ASSERT(hash_len != 0);
rsassa_pss_options.expected_salt_len = hash_len;
options = (const void *) &rsassa_pss_options;
}
TEST_ASSERT(mbedtls_pk_verify_ext(key_pk_type, options, &pk, md_alg,
hash, hash_len, sig, sig_len) == 0);
exit:
PSA_DONE();
mbedtls_pk_free(&pk);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_RSA_C:MBEDTLS_GENPRIME:MBEDTLS_USE_PSA_CRYPTO */
void pk_psa_wrap_sign_ext(int pk_type, int parameter, int key_pk_type, int md_alg)
{
/* See the description of mbedtls_rsa_gen_key() for the description of the `parameter` argument. */
mbedtls_pk_context pk;
size_t sig_len, pkey_len;
mbedtls_svc_key_id_t key_id;
unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
unsigned char pkey[PSA_EXPORT_PUBLIC_KEY_MAX_SIZE];
unsigned char *pkey_start;
unsigned char hash[PSA_HASH_MAX_SIZE];
psa_algorithm_t psa_md_alg = mbedtls_hash_info_psa_from_md(md_alg);
psa_algorithm_t psa_alg;
size_t hash_len = PSA_HASH_LENGTH(psa_md_alg);
void const *options = NULL;
mbedtls_pk_rsassa_pss_options rsassa_pss_options;
int ret;
mbedtls_pk_init(&pk);
PSA_INIT();
/* Create legacy RSA public/private key in PK context. */
mbedtls_pk_init(&pk);
TEST_EQUAL(mbedtls_pk_setup(&pk,
mbedtls_pk_info_from_type(pk_type)), 0);
TEST_EQUAL(mbedtls_rsa_gen_key(mbedtls_pk_rsa(pk),
mbedtls_test_rnd_std_rand, NULL,
parameter, 3), 0);
/* Export underlying public key for re-importing in a legacy context. */
ret = mbedtls_pk_write_pubkey_der(&pk, pkey, sizeof(pkey));
TEST_ASSERT(ret >= 0);
pkey_len = (size_t) ret;
/* mbedtls_pk_write_pubkey_der() writes backwards in the data buffer. */
pkey_start = pkey + sizeof(pkey) - pkey_len;
if (key_pk_type == MBEDTLS_PK_RSA) {
psa_alg = PSA_ALG_RSA_PKCS1V15_SIGN(psa_md_alg);
} else if (key_pk_type == MBEDTLS_PK_RSASSA_PSS) {
psa_alg = PSA_ALG_RSA_PSS(psa_md_alg);
} else {
TEST_ASSUME(!"PK key type not supported in this configuration");
}
/* Turn PK context into an opaque one. */
TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&pk, &key_id, psa_alg,
PSA_KEY_USAGE_SIGN_HASH,
PSA_ALG_NONE), 0);
memset(hash, 0x2a, sizeof(hash));
memset(sig, 0, sizeof(sig));
TEST_EQUAL(mbedtls_pk_sign_ext(key_pk_type, &pk, md_alg, hash, hash_len,
sig, sizeof(sig), &sig_len,
mbedtls_test_rnd_std_rand, NULL), 0);
mbedtls_pk_free(&pk);
TEST_EQUAL(PSA_SUCCESS, psa_destroy_key(key_id));
mbedtls_pk_init(&pk);
TEST_EQUAL(mbedtls_pk_parse_public_key(&pk, pkey_start, pkey_len), 0);
if (key_pk_type == MBEDTLS_PK_RSASSA_PSS) {
rsassa_pss_options.mgf1_hash_id = md_alg;
TEST_ASSERT(hash_len != 0);
rsassa_pss_options.expected_salt_len = hash_len;
options = (const void *) &rsassa_pss_options;
}
TEST_EQUAL(mbedtls_pk_verify_ext(key_pk_type, options, &pk, md_alg,
hash, hash_len, sig, sig_len), 0);
exit:
mbedtls_pk_free(&pk);
PSA_DONE();
}
/* END_CASE */
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