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mbedtls/tests/suites/test_suite_x509write.function
Jonathan Winzig af553bf719 Add required dependency to the testcase 
Co-authored-by: Paul Elliott <62069445+paul-elliott-arm@users.noreply.github.com>
Signed-off-by: Jonathan Winzig <jwinzig@hilscher.com>
2024-01-22 15:31:05 +00:00

775 lines
28 KiB
C
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/* BEGIN_HEADER */
#include "mbedtls/bignum.h"
#include "mbedtls/x509_crt.h"
#include "mbedtls/x509_csr.h"
#include "mbedtls/pem.h"
#include "mbedtls/oid.h"
#include "mbedtls/rsa.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/pk.h"
#include "mbedtls/psa_util.h"
#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, NULL, 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)
{
return mbedtls_rsa_pkcs1_sign((mbedtls_rsa_context *) ctx, f_rng, p_rng,
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) && \
defined(MBEDTLS_PEM_WRITE_C) && defined(MBEDTLS_X509_CSR_WRITE_C)
static int x509_crt_verifycsr(const unsigned char *buf, size_t buflen)
{
unsigned char hash[PSA_HASH_MAX_SIZE];
mbedtls_x509_csr csr;
int ret = 0;
mbedtls_x509_csr_init(&csr);
if (mbedtls_x509_csr_parse(&csr, buf, buflen) != 0) {
ret = MBEDTLS_ERR_X509_BAD_INPUT_DATA;
goto cleanup;
}
psa_algorithm_t psa_alg = mbedtls_md_psa_alg_from_type(csr.sig_md);
size_t hash_size = 0;
psa_status_t status = psa_hash_compute(psa_alg, csr.cri.p, csr.cri.len,
hash, PSA_HASH_MAX_SIZE, &hash_size);
if (status != PSA_SUCCESS) {
/* Note: this can't happen except after an internal error */
ret = MBEDTLS_ERR_X509_BAD_INPUT_DATA;
goto cleanup;
}
if (mbedtls_pk_verify_ext(csr.sig_pk, csr.sig_opts, &csr.pk,
csr.sig_md, hash, mbedtls_md_get_size_from_type(csr.sig_md),
csr.sig.p, csr.sig.len) != 0) {
ret = MBEDTLS_ERR_X509_CERT_VERIFY_FAILED;
goto cleanup;
}
cleanup:
mbedtls_x509_csr_free(&csr);
return ret;
}
#endif /* MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_PEM_WRITE_C && MBEDTLS_X509_CSR_WRITE_C */
#if defined(MBEDTLS_X509_CSR_WRITE_C)
/*
* The size of this temporary buffer is given by the sequence of functions
* called hereinafter:
* - mbedtls_asn1_write_oid()
* - 8 bytes for MBEDTLS_OID_EXTENDED_KEY_USAGE raw value
* - 1 byte for MBEDTLS_OID_EXTENDED_KEY_USAGE length
* - 1 byte for MBEDTLS_ASN1_OID tag
* - mbedtls_asn1_write_len()
* - 1 byte since we're dealing with sizes which are less than 0x80
* - mbedtls_asn1_write_tag()
* - 1 byte
*
* This length is fine as long as this function is called using the
* MBEDTLS_OID_SERVER_AUTH OID. If this is changed in the future, then this
* buffer's length should be adjusted accordingly.
* Unfortunately there's no predefined max size for OIDs which can be used
* to set an overall upper boundary which is always guaranteed.
*/
#define EXT_KEY_USAGE_TMP_BUF_MAX_LENGTH 12
static int csr_set_extended_key_usage(mbedtls_x509write_csr *ctx,
const char *oid, size_t oid_len)
{
unsigned char buf[EXT_KEY_USAGE_TMP_BUF_MAX_LENGTH] = { 0 };
unsigned char *p = buf + sizeof(buf);
int ret;
size_t len = 0;
/*
* Following functions fail anyway if the temporary buffer is not large,
* but we set an extra check here to emphasize a possible source of errors
*/
if (oid_len > EXT_KEY_USAGE_TMP_BUF_MAX_LENGTH) {
return MBEDTLS_ERR_X509_BAD_INPUT_DATA;
}
MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_oid(&p, buf, oid, oid_len));
MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&p, buf, ret));
MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&p, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE));
ret = mbedtls_x509write_csr_set_extension(ctx,
MBEDTLS_OID_EXTENDED_KEY_USAGE,
MBEDTLS_OID_SIZE(MBEDTLS_OID_EXTENDED_KEY_USAGE),
0,
p,
len);
return ret;
}
#endif /* MBEDTLS_X509_CSR_WRITE_C */
/* Due to inconsistencies in the input size limits applied by different
* library functions, some write-parse tests may fail. */
#define MAY_FAIL_GET_NAME 0x0001
#define MAY_FAIL_DN_GETS 0x0002
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_FS_IO:MBEDTLS_PK_PARSE_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:MBEDTLS_PEM_WRITE_C:MBEDTLS_X509_CSR_WRITE_C */
void x509_csr_check(char *key_file, char *cert_req_check_file, int md_type,
int key_usage, int set_key_usage, int cert_type,
int set_cert_type, int set_extension)
{
mbedtls_pk_context key;
mbedtls_x509write_csr req;
unsigned char buf[4096];
int ret;
#if !defined(MBEDTLS_USE_PSA_CRYPTO)
unsigned char check_buf[4000];
FILE *f;
size_t olen = 0;
#endif /* !MBEDTLS_USE_PSA_CRYPTO */
size_t pem_len = 0, buf_index;
int der_len = -1;
const char *subject_name = "C=NL,O=PolarSSL,CN=PolarSSL Server 1";
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_x509_san_list san_ip;
mbedtls_x509_san_list san_dns;
mbedtls_x509_san_list san_uri;
mbedtls_x509_san_list san_mail;
mbedtls_x509_san_list san_dn;
mbedtls_x509_san_list *san_list = NULL;
mbedtls_asn1_named_data *ext_san_dirname = NULL;
const char san_ip_name[] = { 0x7f, 0x00, 0x00, 0x01 }; // 127.0.0.1
const char *san_dns_name = "example.com";
const char *san_dn_name = "C=UK,O=Mbed TLS,CN=Mbed TLS directoryName SAN";
const char *san_mail_name = "mail@example.com";
const char *san_uri_name = "http://pki.example.com";
san_mail.node.type = MBEDTLS_X509_SAN_RFC822_NAME;
san_mail.node.san.unstructured_name.p = (unsigned char *) san_mail_name;
san_mail.node.san.unstructured_name.len = strlen(san_mail_name);
san_mail.next = NULL;
san_dns.node.type = MBEDTLS_X509_SAN_DNS_NAME;
san_dns.node.san.unstructured_name.p = (unsigned char *) san_dns_name;
san_dns.node.san.unstructured_name.len = strlen(san_dns_name);
san_dns.next = &san_mail;
san_dn.node.type = MBEDTLS_X509_SAN_DIRECTORY_NAME;
TEST_ASSERT(mbedtls_x509_string_to_names(&ext_san_dirname,
san_dn_name) == 0);
san_dn.node.san.directory_name = *ext_san_dirname;
san_dn.next = &san_dns;
san_ip.node.type = MBEDTLS_X509_SAN_IP_ADDRESS;
san_ip.node.san.unstructured_name.p = (unsigned char *) san_ip_name;
san_ip.node.san.unstructured_name.len = sizeof(san_ip_name);
san_ip.next = &san_dn;
san_uri.node.type = MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER;
san_uri.node.san.unstructured_name.p = (unsigned char *) san_uri_name;
san_uri.node.san.unstructured_name.len = strlen(san_uri_name);
san_uri.next = &san_ip;
san_list = &san_uri;
memset(&rnd_info, 0x2a, sizeof(mbedtls_test_rnd_pseudo_info));
mbedtls_x509write_csr_init(&req);
mbedtls_pk_init(&key);
MD_OR_USE_PSA_INIT();
TEST_ASSERT(mbedtls_pk_parse_keyfile(&key, key_file, NULL,
mbedtls_test_rnd_std_rand, NULL) == 0);
mbedtls_x509write_csr_set_md_alg(&req, md_type);
mbedtls_x509write_csr_set_key(&req, &key);
TEST_ASSERT(mbedtls_x509write_csr_set_subject_name(&req, subject_name) == 0);
if (set_key_usage != 0) {
TEST_ASSERT(mbedtls_x509write_csr_set_key_usage(&req, key_usage) == 0);
}
if (set_cert_type != 0) {
TEST_ASSERT(mbedtls_x509write_csr_set_ns_cert_type(&req, cert_type) == 0);
}
if (set_extension != 0) {
TEST_ASSERT(csr_set_extended_key_usage(&req, MBEDTLS_OID_SERVER_AUTH,
MBEDTLS_OID_SIZE(MBEDTLS_OID_SERVER_AUTH)) == 0);
TEST_ASSERT(mbedtls_x509write_csr_set_subject_alternative_name(&req, san_list) == 0);
}
ret = mbedtls_x509write_csr_pem(&req, buf, sizeof(buf),
mbedtls_test_rnd_pseudo_rand, &rnd_info);
TEST_ASSERT(ret == 0);
pem_len = strlen((char *) buf);
for (buf_index = pem_len; buf_index < sizeof(buf); ++buf_index) {
TEST_ASSERT(buf[buf_index] == 0);
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
// When using PSA crypto, RNG isn't controllable, so cert_req_check_file can't be used
(void) cert_req_check_file;
buf[pem_len] = '\0';
TEST_ASSERT(x509_crt_verifycsr(buf, pem_len + 1) == 0);
#else
f = fopen(cert_req_check_file, "r");
TEST_ASSERT(f != NULL);
olen = fread(check_buf, 1, sizeof(check_buf), f);
fclose(f);
TEST_ASSERT(olen >= pem_len - 1);
TEST_ASSERT(memcmp(buf, check_buf, pem_len - 1) == 0);
#endif /* MBEDTLS_USE_PSA_CRYPTO */
der_len = mbedtls_x509write_csr_der(&req, buf, sizeof(buf),
mbedtls_test_rnd_pseudo_rand,
&rnd_info);
TEST_ASSERT(der_len >= 0);
if (der_len == 0) {
goto exit;
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
// When using PSA crypto, RNG isn't controllable, result length isn't
// deterministic over multiple runs, removing a single byte isn't enough to
// go into the MBEDTLS_ERR_ASN1_BUF_TOO_SMALL error case
der_len /= 2;
#else
der_len -= 1;
#endif
ret = mbedtls_x509write_csr_der(&req, buf, (size_t) (der_len),
mbedtls_test_rnd_pseudo_rand, &rnd_info);
TEST_ASSERT(ret == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL);
exit:
mbedtls_asn1_free_named_data_list(&ext_san_dirname);
mbedtls_x509write_csr_free(&req);
mbedtls_pk_free(&key);
MD_OR_USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PEM_WRITE_C:MBEDTLS_X509_CSR_WRITE_C:MBEDTLS_USE_PSA_CRYPTO */
void x509_csr_check_opaque(char *key_file, int md_type, int key_usage,
int cert_type)
{
mbedtls_pk_context key;
mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
psa_algorithm_t md_alg_psa, alg_psa;
mbedtls_x509write_csr req;
unsigned char buf[4096];
int ret;
size_t pem_len = 0;
const char *subject_name = "C=NL,O=PolarSSL,CN=PolarSSL Server 1";
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_x509write_csr_init(&req);
MD_OR_USE_PSA_INIT();
memset(&rnd_info, 0x2a, sizeof(mbedtls_test_rnd_pseudo_info));
md_alg_psa = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) md_type);
TEST_ASSERT(md_alg_psa != MBEDTLS_MD_NONE);
mbedtls_pk_init(&key);
TEST_ASSERT(mbedtls_pk_parse_keyfile(&key, key_file, NULL,
mbedtls_test_rnd_std_rand, NULL) == 0);
if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_ECKEY) {
alg_psa = PSA_ALG_ECDSA(md_alg_psa);
} else if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_RSA) {
alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(md_alg_psa);
} else {
TEST_ASSUME(!"PK key type not supported in this configuration");
}
TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&key, &key_id, alg_psa,
PSA_KEY_USAGE_SIGN_HASH,
PSA_ALG_NONE) == 0);
mbedtls_x509write_csr_set_md_alg(&req, md_type);
mbedtls_x509write_csr_set_key(&req, &key);
TEST_ASSERT(mbedtls_x509write_csr_set_subject_name(&req, subject_name) == 0);
if (key_usage != 0) {
TEST_ASSERT(mbedtls_x509write_csr_set_key_usage(&req, key_usage) == 0);
}
if (cert_type != 0) {
TEST_ASSERT(mbedtls_x509write_csr_set_ns_cert_type(&req, cert_type) == 0);
}
ret = mbedtls_x509write_csr_pem(&req, buf, sizeof(buf) - 1,
mbedtls_test_rnd_pseudo_rand, &rnd_info);
TEST_ASSERT(ret == 0);
pem_len = strlen((char *) buf);
buf[pem_len] = '\0';
TEST_ASSERT(x509_crt_verifycsr(buf, pem_len + 1) == 0);
exit:
mbedtls_x509write_csr_free(&req);
mbedtls_pk_free(&key);
psa_destroy_key(key_id);
MD_OR_USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PEM_WRITE_C:MBEDTLS_X509_CRT_WRITE_C:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_MD_CAN_SHA1 */
void x509_crt_check(char *subject_key_file, char *subject_pwd,
char *subject_name, char *issuer_key_file,
char *issuer_pwd, char *issuer_name,
data_t *serial_arg, char *not_before, char *not_after,
int md_type, int key_usage, int set_key_usage,
char *ext_key_usage,
int cert_type, int set_cert_type, int auth_ident,
int ver, char *cert_check_file, int pk_wrap, int is_ca,
char *cert_verify_file, int set_subjectAltNames)
{
mbedtls_pk_context subject_key, issuer_key, issuer_key_alt;
mbedtls_pk_context *key = &issuer_key;
mbedtls_x509write_cert crt;
unsigned char buf[4096];
unsigned char check_buf[5000];
unsigned char *p, *end;
unsigned char tag, sz;
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
mbedtls_mpi serial_mpi;
#endif
int ret, before_tag, after_tag;
size_t olen = 0, pem_len = 0, buf_index = 0;
int der_len = -1;
FILE *f;
mbedtls_test_rnd_pseudo_info rnd_info;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
#endif
mbedtls_pk_type_t issuer_key_type;
mbedtls_x509_san_list san_ip;
mbedtls_x509_san_list san_dns;
mbedtls_x509_san_list san_uri;
mbedtls_x509_san_list san_mail;
mbedtls_x509_san_list san_dn;
mbedtls_asn1_named_data *ext_san_dirname = NULL;
const char san_ip_name[] = { 0x01, 0x02, 0x03, 0x04 };
const char *san_dns_name = "example.com";
const char *san_dn_name = "C=UK,O=Mbed TLS,CN=SubjectAltName test";
const char *san_mail_name = "mail@example.com";
const char *san_uri_name = "http://pki.example.com";
mbedtls_x509_san_list *san_list = NULL;
if (set_subjectAltNames) {
san_mail.node.type = MBEDTLS_X509_SAN_RFC822_NAME;
san_mail.node.san.unstructured_name.p = (unsigned char *) san_mail_name;
san_mail.node.san.unstructured_name.len = strlen(san_mail_name);
san_mail.next = NULL;
san_dns.node.type = MBEDTLS_X509_SAN_DNS_NAME;
san_dns.node.san.unstructured_name.p = (unsigned char *) san_dns_name;
san_dns.node.san.unstructured_name.len = strlen(san_dns_name);
san_dns.next = &san_mail;
san_dn.node.type = MBEDTLS_X509_SAN_DIRECTORY_NAME;
TEST_ASSERT(mbedtls_x509_string_to_names(&ext_san_dirname,
san_dn_name) == 0);
san_dn.node.san.directory_name = *ext_san_dirname;
san_dn.next = &san_dns;
san_ip.node.type = MBEDTLS_X509_SAN_IP_ADDRESS;
san_ip.node.san.unstructured_name.p = (unsigned char *) san_ip_name;
san_ip.node.san.unstructured_name.len = sizeof(san_ip_name);
san_ip.next = &san_dn;
san_uri.node.type = MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER;
san_uri.node.san.unstructured_name.p = (unsigned char *) san_uri_name;
san_uri.node.san.unstructured_name.len = strlen(san_uri_name);
san_uri.next = &san_ip;
san_list = &san_uri;
}
memset(&rnd_info, 0x2a, sizeof(mbedtls_test_rnd_pseudo_info));
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
mbedtls_mpi_init(&serial_mpi);
#endif
mbedtls_pk_init(&subject_key);
mbedtls_pk_init(&issuer_key);
mbedtls_pk_init(&issuer_key_alt);
mbedtls_x509write_crt_init(&crt);
MD_OR_USE_PSA_INIT();
TEST_ASSERT(mbedtls_pk_parse_keyfile(&subject_key, subject_key_file,
subject_pwd, mbedtls_test_rnd_std_rand, NULL) == 0);
TEST_ASSERT(mbedtls_pk_parse_keyfile(&issuer_key, issuer_key_file,
issuer_pwd, mbedtls_test_rnd_std_rand, NULL) == 0);
issuer_key_type = mbedtls_pk_get_type(&issuer_key);
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/* For RSA PK contexts, create a copy as an alternative RSA context. */
if (pk_wrap == 1 && issuer_key_type == MBEDTLS_PK_RSA) {
TEST_ASSERT(mbedtls_pk_setup_rsa_alt(&issuer_key_alt,
mbedtls_pk_rsa(issuer_key),
mbedtls_rsa_decrypt_func,
mbedtls_rsa_sign_func,
mbedtls_rsa_key_len_func) == 0);
key = &issuer_key_alt;
}
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* For Opaque PK contexts, wrap key as an Opaque RSA context. */
if (pk_wrap == 2) {
psa_algorithm_t alg_psa, md_alg_psa;
md_alg_psa = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) md_type);
TEST_ASSERT(md_alg_psa != MBEDTLS_MD_NONE);
if (mbedtls_pk_get_type(&issuer_key) == MBEDTLS_PK_ECKEY) {
alg_psa = PSA_ALG_ECDSA(md_alg_psa);
} else if (mbedtls_pk_get_type(&issuer_key) == MBEDTLS_PK_RSA) {
alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(md_alg_psa);
} else {
TEST_ASSUME(!"PK key type not supported in this configuration");
}
TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&issuer_key, &key_id, alg_psa,
PSA_KEY_USAGE_SIGN_HASH,
PSA_ALG_NONE) == 0);
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if (pk_wrap == 2) {
TEST_ASSERT(mbedtls_pk_get_type(&issuer_key) == MBEDTLS_PK_OPAQUE);
}
if (ver != -1) {
mbedtls_x509write_crt_set_version(&crt, ver);
}
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
TEST_ASSERT(mbedtls_mpi_read_binary(&serial_mpi, serial_arg->x,
serial_arg->len) == 0);
TEST_ASSERT(mbedtls_x509write_crt_set_serial(&crt, &serial_mpi) == 0);
#else
TEST_ASSERT(mbedtls_x509write_crt_set_serial_raw(&crt, serial_arg->x,
serial_arg->len) == 0);
#endif
TEST_ASSERT(mbedtls_x509write_crt_set_validity(&crt, not_before,
not_after) == 0);
mbedtls_x509write_crt_set_md_alg(&crt, md_type);
TEST_ASSERT(mbedtls_x509write_crt_set_issuer_name(&crt, issuer_name) == 0);
TEST_ASSERT(mbedtls_x509write_crt_set_subject_name(&crt, subject_name) == 0);
mbedtls_x509write_crt_set_subject_key(&crt, &subject_key);
mbedtls_x509write_crt_set_issuer_key(&crt, key);
if (crt.version >= MBEDTLS_X509_CRT_VERSION_3) {
/* For the CA case, a path length of -1 means unlimited. */
TEST_ASSERT(mbedtls_x509write_crt_set_basic_constraints(&crt, is_ca,
(is_ca ? -1 : 0)) == 0);
TEST_ASSERT(mbedtls_x509write_crt_set_subject_key_identifier(&crt) == 0);
if (auth_ident) {
TEST_ASSERT(mbedtls_x509write_crt_set_authority_key_identifier(&crt) == 0);
}
if (set_key_usage != 0) {
TEST_ASSERT(mbedtls_x509write_crt_set_key_usage(&crt, key_usage) == 0);
}
if (set_cert_type != 0) {
TEST_ASSERT(mbedtls_x509write_crt_set_ns_cert_type(&crt, cert_type) == 0);
}
if (strcmp(ext_key_usage, "NULL") != 0) {
mbedtls_asn1_sequence exts[2];
memset(exts, 0, sizeof(exts));
#define SET_OID(x, oid) \
do { \
x.len = MBEDTLS_OID_SIZE(oid); \
x.p = (unsigned char *) oid; \
x.tag = MBEDTLS_ASN1_OID; \
} \
while (0)
if (strcmp(ext_key_usage, "serverAuth") == 0) {
SET_OID(exts[0].buf, MBEDTLS_OID_SERVER_AUTH);
} else if (strcmp(ext_key_usage, "codeSigning,timeStamping") == 0) {
SET_OID(exts[0].buf, MBEDTLS_OID_CODE_SIGNING);
exts[0].next = &exts[1];
SET_OID(exts[1].buf, MBEDTLS_OID_TIME_STAMPING);
}
TEST_ASSERT(mbedtls_x509write_crt_set_ext_key_usage(&crt, exts) == 0);
}
}
if (set_subjectAltNames) {
TEST_ASSERT(mbedtls_x509write_crt_set_subject_alternative_name(&crt, san_list) == 0);
}
ret = mbedtls_x509write_crt_pem(&crt, buf, sizeof(buf),
mbedtls_test_rnd_pseudo_rand, &rnd_info);
TEST_ASSERT(ret == 0);
pem_len = strlen((char *) buf);
// check that the rest of the buffer remains clear
for (buf_index = pem_len; buf_index < sizeof(buf); ++buf_index) {
TEST_ASSERT(buf[buf_index] == 0);
}
if (issuer_key_type != MBEDTLS_PK_RSA) {
mbedtls_x509_crt crt_parse, trusted;
uint32_t flags;
mbedtls_x509_crt_init(&crt_parse);
mbedtls_x509_crt_init(&trusted);
TEST_ASSERT(mbedtls_x509_crt_parse_file(&trusted,
cert_verify_file) == 0);
TEST_ASSERT(mbedtls_x509_crt_parse(&crt_parse,
buf, sizeof(buf)) == 0);
ret = mbedtls_x509_crt_verify(&crt_parse, &trusted, NULL, NULL, &flags,
NULL, NULL);
mbedtls_x509_crt_free(&crt_parse);
mbedtls_x509_crt_free(&trusted);
TEST_EQUAL(flags, 0);
TEST_EQUAL(ret, 0);
} else if (*cert_check_file != '\0') {
f = fopen(cert_check_file, "r");
TEST_ASSERT(f != NULL);
olen = fread(check_buf, 1, sizeof(check_buf), f);
fclose(f);
TEST_ASSERT(olen < sizeof(check_buf));
TEST_EQUAL(olen, pem_len);
TEST_ASSERT(olen >= pem_len - 1);
TEST_ASSERT(memcmp(buf, check_buf, pem_len - 1) == 0);
}
der_len = mbedtls_x509write_crt_der(&crt, buf, sizeof(buf),
mbedtls_test_rnd_pseudo_rand,
&rnd_info);
TEST_ASSERT(der_len >= 0);
if (der_len == 0) {
goto exit;
}
// Not testing against file, check date format
if (*cert_check_file == '\0') {
// UTC tag if before 2050, 2 digits less for year
if (not_before[0] == '2' && (not_before[1] > '0' || not_before[2] > '4')) {
before_tag = MBEDTLS_ASN1_GENERALIZED_TIME;
} else {
before_tag = MBEDTLS_ASN1_UTC_TIME;
not_before += 2;
}
if (not_after[0] == '2' && (not_after[1] > '0' || not_after[2] > '4')) {
after_tag = MBEDTLS_ASN1_GENERALIZED_TIME;
} else {
after_tag = MBEDTLS_ASN1_UTC_TIME;
not_after += 2;
}
end = buf + sizeof(buf);
for (p = end - der_len; p < end;) {
tag = *p++;
sz = *p++;
if (tag == MBEDTLS_ASN1_UTC_TIME || tag == MBEDTLS_ASN1_GENERALIZED_TIME) {
// Check correct tag and time written
TEST_ASSERT(before_tag == tag);
TEST_ASSERT(memcmp(p, not_before, sz - 1) == 0);
p += sz;
tag = *p++;
sz = *p++;
TEST_ASSERT(after_tag == tag);
TEST_ASSERT(memcmp(p, not_after, sz - 1) == 0);
break;
}
// Increment if long form ASN1 length
if (sz & 0x80) {
p += sz & 0x0F;
}
if (tag != (MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) {
p += sz;
}
}
TEST_ASSERT(p < end);
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
// When using PSA crypto, RNG isn't controllable, result length isn't
// deterministic over multiple runs, removing a single byte isn't enough to
// go into the MBEDTLS_ERR_ASN1_BUF_TOO_SMALL error case
if (issuer_key_type != MBEDTLS_PK_RSA) {
der_len /= 2;
} else
#endif
der_len -= 1;
ret = mbedtls_x509write_crt_der(&crt, buf, (size_t) (der_len),
mbedtls_test_rnd_pseudo_rand, &rnd_info);
TEST_ASSERT(ret == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL);
exit:
mbedtls_asn1_free_named_data_list(&ext_san_dirname);
mbedtls_x509write_crt_free(&crt);
mbedtls_pk_free(&issuer_key_alt);
mbedtls_pk_free(&subject_key);
mbedtls_pk_free(&issuer_key);
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
mbedtls_mpi_free(&serial_mpi);
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_destroy_key(key_id);
#endif
MD_OR_USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_WRITE_C */
void x509_set_serial_check()
{
mbedtls_x509write_cert ctx;
uint8_t invalid_serial[MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN + 1];
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
mbedtls_mpi serial_mpi;
mbedtls_mpi_init(&serial_mpi);
#endif
USE_PSA_INIT();
memset(invalid_serial, 0x01, sizeof(invalid_serial));
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
TEST_EQUAL(mbedtls_mpi_read_binary(&serial_mpi, invalid_serial,
sizeof(invalid_serial)), 0);
TEST_EQUAL(mbedtls_x509write_crt_set_serial(&ctx, &serial_mpi),
MBEDTLS_ERR_X509_BAD_INPUT_DATA);
#endif
TEST_EQUAL(mbedtls_x509write_crt_set_serial_raw(&ctx, invalid_serial,
sizeof(invalid_serial)),
MBEDTLS_ERR_X509_BAD_INPUT_DATA);
exit:
#if defined(MBEDTLS_TEST_DEPRECATED) && defined(MBEDTLS_BIGNUM_C)
mbedtls_mpi_free(&serial_mpi);
#else
;
#endif
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_X509_CREATE_C:MBEDTLS_X509_USE_C */
void mbedtls_x509_string_to_names(char *name, char *parsed_name,
int result, int may_fail)
{
int ret;
size_t len = 0;
mbedtls_asn1_named_data *names = NULL;
mbedtls_x509_name parsed;
memset(&parsed, 0, sizeof(parsed));
mbedtls_x509_name *parsed_cur = NULL;
mbedtls_x509_name *parsed_prv = NULL;
unsigned char buf[1024] = { 0 };
unsigned char out[1024] = { 0 };
unsigned char *c = buf + sizeof(buf);
USE_PSA_INIT();
ret = mbedtls_x509_string_to_names(&names, name);
TEST_EQUAL(ret, result);
if (ret != 0) {
goto exit;
}
ret = mbedtls_x509_write_names(&c, buf, names);
TEST_LE_S(1, ret);
TEST_EQUAL(mbedtls_asn1_get_tag(&c, buf + sizeof(buf), &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE), 0);
ret = mbedtls_x509_get_name(&c, buf + sizeof(buf), &parsed);
if ((may_fail & MAY_FAIL_GET_NAME) && ret < 0) {
/* Validation inconsistency between mbedtls_x509_string_to_names() and
* mbedtls_x509_get_name(). Accept it for now. */
goto exit;
}
TEST_EQUAL(ret, 0);
ret = mbedtls_x509_dn_gets((char *) out, sizeof(out), &parsed);
if ((may_fail & MAY_FAIL_DN_GETS) && ret < 0) {
/* Validation inconsistency between mbedtls_x509_string_to_names() and
* mbedtls_x509_dn_gets(). Accept it for now. */
goto exit;
}
TEST_LE_S(1, ret);
TEST_ASSERT(strcmp((char *) out, parsed_name) == 0);
exit:
mbedtls_asn1_free_named_data_list(&names);
parsed_cur = parsed.next;
while (parsed_cur != 0) {
parsed_prv = parsed_cur;
parsed_cur = parsed_cur->next;
mbedtls_free(parsed_prv);
}
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_X509_CSR_WRITE_C */
void x509_set_extension_length_check()
{
int ret = 0;
mbedtls_x509write_csr ctx;
mbedtls_x509write_csr_init(&ctx);
unsigned char buf[EXT_KEY_USAGE_TMP_BUF_MAX_LENGTH] = { 0 };
unsigned char *p = buf + sizeof(buf);
ret = mbedtls_x509_set_extension(&(ctx.MBEDTLS_PRIVATE(extensions)),
MBEDTLS_OID_EXTENDED_KEY_USAGE,
MBEDTLS_OID_SIZE(MBEDTLS_OID_EXTENDED_KEY_USAGE),
0,
p,
SIZE_MAX);
TEST_ASSERT(MBEDTLS_ERR_X509_BAD_INPUT_DATA == ret);
}
/* END_CASE */
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