--- /dev/null
+/*
+ * Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/asn1.h>
+#include <openssl/pem.h>
+#include "internal/sizes.h"
+#include "crypto/evp.h"
+#include "testutil.h"
+
+/* Collected arguments */
+static const char *eecert_filename = NULL; /* For test_x509_file() */
+static const char *cacert_filename = NULL; /* For test_x509_file() */
+static const char *pubkey_filename = NULL; /* For test_spki_file() */
+
+#define ALGORITHMID_NAME "algorithm-id"
+
+static int test_spki_aid(X509_PUBKEY *pubkey, const char *filename)
+{
+ const ASN1_OBJECT *oid;
+ X509_ALGOR *alg = NULL;
+ EVP_PKEY *pkey = NULL;
+ EVP_KEYMGMT *keymgmt = NULL;
+ void *keydata = NULL;
+ char name[OSSL_MAX_NAME_SIZE] = "";
+ unsigned char *algid_legacy = NULL;
+ int algid_legacy_len = 0;
+ static unsigned char algid_prov[OSSL_MAX_ALGORITHM_ID_SIZE];
+ size_t algid_prov_len = 0;
+ const OSSL_PARAM *gettable_params = NULL;
+ OSSL_PARAM params[] = {
+ OSSL_PARAM_octet_string(ALGORITHMID_NAME,
+ &algid_prov, sizeof(algid_prov)),
+ OSSL_PARAM_END
+ };
+ int ret = 0;
+
+ if (!TEST_true(X509_PUBKEY_get0_param(NULL, NULL, NULL, &alg, pubkey))
+ || !TEST_ptr(pkey = X509_PUBKEY_get0(pubkey)))
+ goto end;
+
+ if (!TEST_int_ge(algid_legacy_len = i2d_X509_ALGOR(alg, &algid_legacy), 0))
+ goto end;
+
+ X509_ALGOR_get0(&oid, NULL, NULL, alg);
+ if (!TEST_true(OBJ_obj2txt(name, sizeof(name), oid, 0)))
+ goto end;
+
+ /*
+ * We use an internal functions to ensure we have a provided key.
+ * Note that |keydata| should not be freed, as it's cached in |pkey|.
+ * The |keymgmt|, however, should, as its reference count is incremented
+ * in this function.
+ */
+ if ((keydata = evp_pkey_export_to_provider(pkey, NULL,
+ &keymgmt, NULL)) == NULL) {
+ TEST_info("The public key found in '%s' doesn't have provider support."
+ " Skipping...",
+ filename);
+ ret = 1;
+ goto end;
+ }
+
+ if (!TEST_true(EVP_KEYMGMT_is_a(keymgmt, name))) {
+ TEST_info("The AlgorithmID key type (%s) for the public key found in"
+ " '%s' doesn't match the key type of the extracted public"
+ " key.",
+ name, filename);
+ ret = 1;
+ goto end;
+ }
+
+ if (!TEST_ptr(gettable_params = EVP_KEYMGMT_gettable_params(keymgmt))
+ || !TEST_ptr(OSSL_PARAM_locate_const(gettable_params, ALGORITHMID_NAME))) {
+ TEST_info("The %s provider keymgmt appears to lack support for algorithm-id."
+ " Skipping...",
+ name);
+ ret = 1;
+ goto end;
+ }
+
+ algid_prov[0] = '\0';
+ if (!TEST_true(evp_keymgmt_get_params(keymgmt, keydata, params)))
+ goto end;
+ algid_prov_len = params[0].return_size;
+
+ /* We now have all the algorithm IDs we need, let's compare them */
+ if (TEST_mem_eq(algid_legacy, algid_legacy_len,
+ algid_prov, algid_prov_len))
+ ret = 1;
+
+ end:
+ EVP_KEYMGMT_free(keymgmt);
+ OPENSSL_free(algid_legacy);
+ return ret;
+}
+
+static int test_x509_spki_aid(X509 *cert, const char *filename)
+{
+ X509_PUBKEY *pubkey = X509_get_X509_PUBKEY(cert);
+
+ return test_spki_aid(pubkey, filename);
+}
+
+/*
+ * TODO
+ * When we gain the ability to get an EVP_SIGNATURE with a complete signature
+ * algorithm name (like "sha1WithRSAEncryption" or its corresponding OID in
+ * text form, "1.2.840.113549.1.1.2"), we won't have to limit this test to
+ * what we have in libcrypto's cross-reference db, i.e. won't have to call
+ * OBJ_find_sigid_algs() to find out the EVP_PKEY_METHOD NID any more.
+ * All we'd have to do is used OBJ_obj2txt() on an ASN1_OBJECT and pass the
+ * result.
+ */
+static int test_x509_sig_aid(X509 *eecert, const char *ee_filename,
+ X509 *cacert, const char *ca_filename)
+{
+ const ASN1_OBJECT *sig_oid = NULL;
+ const X509_ALGOR *alg = NULL;
+ int sig_nid = NID_undef, dig_nid = NID_undef, pkey_nid = NID_undef;
+ EVP_MD_CTX *mdctx = NULL;
+ EVP_PKEY_CTX *pctx = NULL;
+ EVP_PKEY *pkey = NULL;
+ unsigned char *algid_legacy = NULL;
+ int algid_legacy_len = 0;
+ static unsigned char algid_prov[OSSL_MAX_ALGORITHM_ID_SIZE];
+ size_t algid_prov_len = 0;
+ const OSSL_PARAM *gettable_params = NULL;
+ OSSL_PARAM params[] = {
+ OSSL_PARAM_octet_string("algorithm-id",
+ &algid_prov, sizeof(algid_prov)),
+ OSSL_PARAM_END
+ };
+ int ret = 0;
+
+ X509_get0_signature(NULL, &alg, eecert);
+ X509_ALGOR_get0(&sig_oid, NULL, NULL, alg);
+ if (!TEST_int_eq(X509_ALGOR_cmp(alg, X509_get0_tbs_sigalg(eecert)), 0))
+ goto end;
+ if (!TEST_int_ne(sig_nid = OBJ_obj2nid(sig_oid), NID_undef)
+ || !TEST_true(OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid))
+ || !TEST_ptr(pkey = X509_get0_pubkey(cacert)))
+ goto end;
+
+ if (!TEST_true(EVP_PKEY_is_a(pkey, OBJ_nid2sn(pkey_nid)))) {
+ TEST_info("The '%s' pubkey can't be used to verify the '%s' signature",
+ ca_filename, ee_filename);
+ TEST_info("Signature algorithm is %s (pkey type %s, hash type %s)",
+ OBJ_nid2sn(sig_nid), OBJ_nid2sn(pkey_nid), OBJ_nid2sn(dig_nid));
+ TEST_info("Pkey key type is %s", EVP_PKEY_get0_first_alg_name(pkey));
+ goto end;
+ }
+
+ if (!TEST_int_ge(algid_legacy_len = i2d_X509_ALGOR(alg, &algid_legacy), 0))
+ goto end;
+
+ if (!TEST_ptr(mdctx = EVP_MD_CTX_new())
+ || !TEST_true(EVP_DigestVerifyInit_ex(mdctx, &pctx,
+ OBJ_nid2sn(dig_nid),
+ NULL, NULL, pkey))) {
+ TEST_info("Couldn't initialize a DigestVerify operation with "
+ "pkey type %s and hash type %s",
+ OBJ_nid2sn(pkey_nid), OBJ_nid2sn(dig_nid));
+ goto end;
+ }
+
+ if (!TEST_ptr(gettable_params = EVP_PKEY_CTX_gettable_params(pctx))
+ || !TEST_ptr(OSSL_PARAM_locate_const(gettable_params, ALGORITHMID_NAME))) {
+ TEST_info("The %s provider keymgmt appears to lack support for algorithm-id"
+ " Skipping...",
+ OBJ_nid2sn(pkey_nid));
+ ret = 1;
+ goto end;
+ }
+
+ algid_prov[0] = '\0';
+ if (!TEST_true(EVP_PKEY_CTX_get_params(pctx, params)))
+ goto end;
+ algid_prov_len = params[0].return_size;
+
+ /* We now have all the algorithm IDs we need, let's compare them */
+ if (TEST_mem_eq(algid_legacy, algid_legacy_len,
+ algid_prov, algid_prov_len))
+ ret = 1;
+
+ end:
+ EVP_MD_CTX_free(mdctx);
+ /* pctx is free by EVP_MD_CTX_free() */
+ OPENSSL_free(algid_legacy);
+ return ret;
+}
+
+static int test_spki_file(void)
+{
+ X509_PUBKEY *pubkey = NULL;
+ BIO *b = BIO_new_file(pubkey_filename, "r");
+ int ret = 0;
+
+ if (b == NULL) {
+ TEST_error("Couldn't open '%s' for reading\n", pubkey_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+
+ if ((pubkey = PEM_read_bio_X509_PUBKEY(b, NULL, NULL, NULL)) == NULL) {
+ TEST_error("'%s' doesn't appear to be a SubjectPublicKeyInfo in PEM format\n",
+ pubkey_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+
+ ret = test_spki_aid(pubkey, pubkey_filename);
+ end:
+ BIO_free(b);
+ X509_PUBKEY_free(pubkey);
+ return ret;
+}
+
+static int test_x509_files(void)
+{
+ X509 *eecert = NULL, *cacert = NULL;
+ BIO *bee = NULL, *bca = NULL;
+ int ret = 0;
+
+ if ((bee = BIO_new_file(eecert_filename, "r")) == NULL) {
+ TEST_error("Couldn't open '%s' for reading\n", eecert_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+ if ((bca = BIO_new_file(cacert_filename, "r")) == NULL) {
+ TEST_error("Couldn't open '%s' for reading\n", cacert_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+
+ if ((eecert = PEM_read_bio_X509(bee, NULL, NULL, NULL)) == NULL) {
+ TEST_error("'%s' doesn't appear to be a X.509 certificate in PEM format\n",
+ eecert_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+ if ((cacert = PEM_read_bio_X509(bca, NULL, NULL, NULL)) == NULL) {
+ TEST_error("'%s' doesn't appear to be a X.509 certificate in PEM format\n",
+ cacert_filename);
+ TEST_openssl_errors();
+ goto end;
+ }
+
+ ret = test_x509_sig_aid(eecert, eecert_filename, cacert, cacert_filename)
+ & test_x509_spki_aid(eecert, eecert_filename)
+ & test_x509_spki_aid(cacert, cacert_filename);
+ end:
+ BIO_free(bee);
+ BIO_free(bca);
+ X509_free(eecert);
+ X509_free(cacert);
+ return ret;
+}
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1,
+ OPT_EOF = 0,
+ OPT_X509,
+ OPT_SPKI,
+ OPT_TEST_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS *test_get_options(void)
+{
+ static const OPTIONS test_options[] = {
+ OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("file...\n"),
+ { "x509", OPT_X509, '-', "Test X.509 certificates. Requires two files" },
+ { "spki", OPT_SPKI, '-', "Test public keys in SubjectPublicKeyInfo form. Requires one file" },
+ { OPT_HELP_STR, 1, '-',
+ "file...\tFile(s) to run tests on. All files must be PEM encoded.\n" },
+ { NULL }
+ };
+ return test_options;
+}
+
+int setup_tests(void)
+{
+ OPTION_CHOICE o;
+ int n, x509 = 0, spki = 0, testcount = 0;
+
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_X509:
+ x509 = 1;
+ break;
+ case OPT_SPKI:
+ spki = 1;
+ break;
+ case OPT_TEST_CASES:
+ break;
+ default:
+ case OPT_ERR:
+ return 0;
+ }
+ }
+
+ /* |testcount| adds all the given test types together */
+ testcount = x509 + spki;
+
+ if (testcount < 1)
+ BIO_printf(bio_err, "No test type given\n");
+ else if (testcount > 1)
+ BIO_printf(bio_err, "Only one test type may be given\n");
+ if (testcount != 1)
+ return 0;
+
+ n = test_get_argument_count();
+ if (spki && n == 1) {
+ pubkey_filename = test_get_argument(0);
+ } else if (x509 && n == 2) {
+ eecert_filename = test_get_argument(0);
+ cacert_filename = test_get_argument(1);
+ }
+
+ if (spki && pubkey_filename == NULL) {
+ BIO_printf(bio_err, "Missing -spki argument\n");
+ return 0;
+ } else if (x509 && (eecert_filename == NULL || cacert_filename == NULL)) {
+ BIO_printf(bio_err, "Missing -x509 argument(s)\n");
+ return 0;
+ }
+
+ if (x509)
+ ADD_TEST(test_x509_files);
+ if (spki)
+ ADD_TEST(test_spki_file);
+ return 1;
+}
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