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-rw-r--r--tests/unittests/torture_pki_ecdsa.c493
1 files changed, 493 insertions, 0 deletions
diff --git a/tests/unittests/torture_pki_ecdsa.c b/tests/unittests/torture_pki_ecdsa.c
new file mode 100644
index 00000000..a69a464c
--- /dev/null
+++ b/tests/unittests/torture_pki_ecdsa.c
@@ -0,0 +1,493 @@
+#include "config.h"
+
+#define LIBSSH_STATIC
+
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "torture.h"
+#include "torture_pki.h"
+#include "pki.c"
+
+#define LIBSSH_ECDSA_TESTKEY "libssh_testkey.id_ecdsa"
+
+const unsigned char ECDSA_HASH[] = "12345678901234567890";
+
+static int setup_ecdsa_key(void **state, int ecdsa_bits)
+{
+ (void) state; /* unused */
+
+ unlink(LIBSSH_ECDSA_TESTKEY);
+ unlink(LIBSSH_ECDSA_TESTKEY ".pub");
+
+ torture_write_file(LIBSSH_ECDSA_TESTKEY,
+ torture_get_testkey(SSH_KEYTYPE_ECDSA, ecdsa_bits, 0));
+ torture_write_file(LIBSSH_ECDSA_TESTKEY ".pub",
+ torture_get_testkey_pub(SSH_KEYTYPE_ECDSA, ecdsa_bits));
+
+ return 0;
+}
+
+static int setup_ecdsa_key_521(void **state)
+{
+ setup_ecdsa_key(state, 521);
+
+ return 0;
+}
+
+static int setup_ecdsa_key_384(void **state)
+{
+ setup_ecdsa_key(state, 384);
+
+ return 0;
+}
+
+static int setup_ecdsa_key_256(void **state)
+{
+ setup_ecdsa_key(state, 256);
+
+ return 0;
+}
+
+static int teardown(void **state)
+{
+ (void) state; /* unused */
+
+ unlink(LIBSSH_ECDSA_TESTKEY);
+ unlink(LIBSSH_ECDSA_TESTKEY ".pub");
+
+ return 0;
+}
+
+static void torture_pki_ecdsa_import_privkey_base64(void **state)
+{
+ int rc;
+ char *key_str;
+ ssh_key key;
+ const char *passphrase = torture_get_testkey_passphrase();
+
+ (void) state; /* unused */
+
+ key_str = torture_pki_read_file(LIBSSH_ECDSA_TESTKEY);
+ assert_true(key_str != NULL);
+
+ rc = ssh_pki_import_privkey_base64(key_str, passphrase, NULL, NULL, &key);
+ assert_true(rc == 0);
+
+ rc = ssh_key_is_private(key);
+ assert_true(rc == 1);
+
+ free(key_str);
+ ssh_key_free(key);
+}
+
+static void torture_pki_ecdsa_publickey_from_privatekey(void **state)
+{
+ int rc;
+ char *key_str;
+ ssh_key key;
+ ssh_key pubkey;
+ const char *passphrase = NULL;
+
+ (void) state; /* unused */
+
+ key_str = torture_pki_read_file(LIBSSH_ECDSA_TESTKEY);
+ assert_true(key_str != NULL);
+
+ rc = ssh_pki_import_privkey_base64(key_str, passphrase, NULL, NULL, &key);
+ assert_true(rc == 0);
+
+ rc = ssh_pki_export_privkey_to_pubkey(key, &pubkey);
+ assert_true(rc == SSH_OK);
+
+ free(key_str);
+ ssh_key_free(key);
+ ssh_key_free(pubkey);
+}
+
+static void torture_pki_ecdsa_publickey_base64(void **state)
+{
+ enum ssh_keytypes_e type;
+ char *b64_key, *key_buf, *p;
+ const char *q;
+ ssh_key key;
+ int rc;
+
+ (void) state; /* unused */
+
+ key_buf = torture_pki_read_file(LIBSSH_ECDSA_TESTKEY ".pub");
+ assert_true(key_buf != NULL);
+
+ q = p = key_buf;
+ while (*p != ' ') p++;
+ *p = '\0';
+
+ type = ssh_key_type_from_name(q);
+ assert_true(type == SSH_KEYTYPE_ECDSA);
+
+ q = ++p;
+ while (*p != ' ') p++;
+ *p = '\0';
+
+ rc = ssh_pki_import_pubkey_base64(q, type, &key);
+ assert_true(rc == 0);
+
+ rc = ssh_pki_export_pubkey_base64(key, &b64_key);
+ assert_true(rc == 0);
+
+ assert_string_equal(q, b64_key);
+
+ free(b64_key);
+ free(key_buf);
+ ssh_key_free(key);
+}
+
+static void torture_pki_ecdsa_generate_pubkey_from_privkey(void **state)
+{
+ char pubkey_original[4096] = {0};
+ char pubkey_generated[4096] = {0};
+ ssh_key privkey;
+ ssh_key pubkey;
+ int rc;
+ int len;
+
+ (void) state; /* unused */
+
+ rc = torture_read_one_line(LIBSSH_ECDSA_TESTKEY ".pub",
+ pubkey_original,
+ sizeof(pubkey_original));
+ assert_true(rc == 0);
+
+ /* remove the public key, generate it from the private key and write it. */
+ unlink(LIBSSH_ECDSA_TESTKEY ".pub");
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY,
+ NULL,
+ NULL,
+ NULL,
+ &privkey);
+ assert_true(rc == 0);
+
+ rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey);
+ assert_true(rc == SSH_OK);
+
+ rc = ssh_pki_export_pubkey_file(pubkey, LIBSSH_ECDSA_TESTKEY ".pub");
+ assert_true(rc == 0);
+
+ rc = torture_read_one_line(LIBSSH_ECDSA_TESTKEY ".pub",
+ pubkey_generated,
+ sizeof(pubkey_generated));
+ assert_true(rc == 0);
+ len = torture_pubkey_len(pubkey_original);
+ assert_int_equal(strncmp(pubkey_original, pubkey_generated, len), 0);
+
+ ssh_key_free(privkey);
+ ssh_key_free(pubkey);
+}
+
+static void torture_pki_ecdsa_duplicate_key(void **state)
+{
+ int rc;
+ char *b64_key;
+ char *b64_key_gen;
+ ssh_key pubkey;
+ ssh_key privkey;
+ ssh_key privkey_dup;
+
+ (void) state;
+
+ rc = ssh_pki_import_pubkey_file(LIBSSH_ECDSA_TESTKEY ".pub", &pubkey);
+ assert_true(rc == 0);
+
+ rc = ssh_pki_export_pubkey_base64(pubkey, &b64_key);
+ assert_true(rc == 0);
+ ssh_key_free(pubkey);
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY,
+ NULL,
+ NULL,
+ NULL,
+ &privkey);
+ assert_true(rc == 0);
+
+ privkey_dup = ssh_key_dup(privkey);
+ assert_true(privkey_dup != NULL);
+
+ rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey);
+ assert_true(rc == SSH_OK);
+
+ rc = ssh_pki_export_pubkey_base64(pubkey, &b64_key_gen);
+ assert_true(rc == 0);
+
+ assert_string_equal(b64_key, b64_key_gen);
+
+#ifndef HAVE_LIBMBEDCRYPTO
+ /* libmbedcrypto can't compare ecdsa keys */
+ rc = ssh_key_cmp(privkey, privkey_dup, SSH_KEY_CMP_PRIVATE);
+ assert_true(rc == 0);
+#endif
+
+ ssh_key_free(pubkey);
+ ssh_key_free(privkey);
+ ssh_key_free(privkey_dup);
+ ssh_string_free_char(b64_key);
+ ssh_string_free_char(b64_key_gen);
+}
+
+/* Test case for bug #147: Private ECDSA key duplication did not carry
+ * over parts of the key that then caused subsequent key demotion to
+ * fail.
+ */
+static void torture_pki_ecdsa_duplicate_then_demote(void **state)
+{
+ ssh_key pubkey;
+ ssh_key privkey;
+ ssh_key privkey_dup;
+ int rc;
+
+ (void) state;
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY,
+ NULL,
+ NULL,
+ NULL,
+ &privkey);
+ assert_true(rc == 0);
+
+ privkey_dup = ssh_key_dup(privkey);
+ assert_true(privkey_dup != NULL);
+ assert_int_equal(privkey->ecdsa_nid, privkey_dup->ecdsa_nid);
+
+ rc = ssh_pki_export_privkey_to_pubkey(privkey_dup, &pubkey);
+ assert_true(rc == 0);
+ assert_int_equal(pubkey->ecdsa_nid, privkey->ecdsa_nid);
+
+ ssh_key_free(pubkey);
+ ssh_key_free(privkey);
+ ssh_key_free(privkey_dup);
+}
+
+static void torture_pki_generate_key_ecdsa(void **state)
+{
+ int rc;
+ ssh_key key;
+ ssh_signature sign;
+ enum ssh_keytypes_e type = SSH_KEYTYPE_UNKNOWN;
+ const char *type_char = NULL;
+ const char *etype_char = NULL;
+ ssh_session session=ssh_new();
+ (void) state;
+
+ rc = ssh_pki_generate(SSH_KEYTYPE_ECDSA, 256, &key);
+ assert_true(rc == SSH_OK);
+ assert_true(key != NULL);
+ sign = pki_do_sign(key, ECDSA_HASH, 20);
+ assert_true(sign != NULL);
+ rc = pki_signature_verify(session,sign,key,ECDSA_HASH,20);
+ assert_true(rc == SSH_OK);
+ type = ssh_key_type(key);
+ assert_true(type == SSH_KEYTYPE_ECDSA);
+ type_char = ssh_key_type_to_char(type);
+ assert_true(strcmp(type_char, "ssh-ecdsa") == 0);
+ etype_char = ssh_pki_key_ecdsa_name(key);
+ assert_true(strcmp(etype_char, "ecdsa-sha2-nistp256") == 0);
+
+ ssh_signature_free(sign);
+ ssh_key_free(key);
+ key=NULL;
+
+ rc = ssh_pki_generate(SSH_KEYTYPE_ECDSA, 384, &key);
+ assert_true(rc == SSH_OK);
+ assert_true(key != NULL);
+ sign = pki_do_sign(key, ECDSA_HASH, 20);
+ assert_true(sign != NULL);
+ rc = pki_signature_verify(session,sign,key,ECDSA_HASH,20);
+ assert_true(rc == SSH_OK);
+ type = ssh_key_type(key);
+ assert_true(type == SSH_KEYTYPE_ECDSA);
+ type_char = ssh_key_type_to_char(type);
+ assert_true(strcmp(type_char, "ssh-ecdsa") == 0);
+ etype_char =ssh_pki_key_ecdsa_name(key);
+ assert_true(strcmp(etype_char, "ecdsa-sha2-nistp384") == 0);
+
+ ssh_signature_free(sign);
+ ssh_key_free(key);
+ key=NULL;
+
+ rc = ssh_pki_generate(SSH_KEYTYPE_ECDSA, 512, &key);
+ assert_true(rc == SSH_OK);
+ assert_true(key != NULL);
+ sign = pki_do_sign(key, ECDSA_HASH, 20);
+ assert_true(sign != NULL);
+ rc = pki_signature_verify(session,sign,key,ECDSA_HASH,20);
+ assert_true(rc == SSH_OK);
+ type = ssh_key_type(key);
+ assert_true(type == SSH_KEYTYPE_ECDSA);
+ type_char = ssh_key_type_to_char(type);
+ assert_true(strcmp(type_char, "ssh-ecdsa") == 0);
+ etype_char =ssh_pki_key_ecdsa_name(key);
+ assert_true(strcmp(etype_char, "ecdsa-sha2-nistp521") == 0);
+
+ ssh_signature_free(sign);
+ ssh_key_free(key);
+ key=NULL;
+
+ ssh_free(session);
+}
+
+static void torture_pki_ecdsa_write_privkey(void **state)
+{
+ ssh_key origkey;
+ ssh_key privkey;
+ int rc;
+
+ (void) state; /* unused */
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY,
+ NULL,
+ NULL,
+ NULL,
+ &origkey);
+ assert_true(rc == 0);
+
+ unlink(LIBSSH_ECDSA_TESTKEY);
+
+ rc = ssh_pki_export_privkey_file(origkey,
+ "",
+ NULL,
+ NULL,
+ LIBSSH_ECDSA_TESTKEY);
+ assert_true(rc == 0);
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY,
+ NULL,
+ NULL,
+ NULL,
+ &privkey);
+ assert_true(rc == 0);
+
+ rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE);
+ assert_true(rc == 0);
+
+ ssh_key_free(origkey);
+ ssh_key_free(privkey);
+}
+
+static void torture_pki_ecdsa_name(void **state, const char *expected_name)
+{
+ int rc;
+ ssh_key key;
+ const char *etype_char = NULL;
+
+ (void) state; /* unused */
+
+ rc = ssh_pki_import_privkey_file(LIBSSH_ECDSA_TESTKEY, NULL, NULL, NULL, &key);
+ assert_true(rc == 0);
+
+ etype_char =ssh_pki_key_ecdsa_name(key);
+ assert_true(strcmp(etype_char, expected_name) == 0);
+
+ ssh_key_free(key);
+}
+
+static void torture_pki_ecdsa_name256(void **state)
+{
+ torture_pki_ecdsa_name(state, "ecdsa-sha2-nistp256");
+}
+
+static void torture_pki_ecdsa_name384(void **state)
+{
+ torture_pki_ecdsa_name(state, "ecdsa-sha2-nistp384");
+}
+
+static void torture_pki_ecdsa_name521(void **state)
+{
+ torture_pki_ecdsa_name(state, "ecdsa-sha2-nistp521");
+}
+
+int torture_run_tests(void) {
+ int rc;
+ struct CMUnitTest tests[] = {
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_import_privkey_base64,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_import_privkey_base64,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_import_privkey_base64,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_from_privatekey,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_from_privatekey,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_from_privatekey,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_then_demote,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_then_demote,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_then_demote,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_base64,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_base64,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_publickey_base64,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_generate_pubkey_from_privkey,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_generate_pubkey_from_privkey,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_generate_pubkey_from_privkey,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_key,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_key,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_duplicate_key,
+ setup_ecdsa_key_521,
+ teardown),
+ cmocka_unit_test(torture_pki_generate_key_ecdsa),
+#ifdef HAVE_LIBCRYPTO
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_write_privkey,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_write_privkey,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_write_privkey,
+ setup_ecdsa_key_521,
+ teardown),
+#endif /* HAVE_LIBCRYPTO */
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_name256,
+ setup_ecdsa_key_256,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_name384,
+ setup_ecdsa_key_384,
+ teardown),
+ cmocka_unit_test_setup_teardown(torture_pki_ecdsa_name521,
+ setup_ecdsa_key_521,
+ teardown),
+ };
+
+ ssh_init();
+ torture_filter_tests(tests);
+ rc = cmocka_run_group_tests(tests, NULL, NULL);
+ ssh_finalize();
+ return rc;
+}
generated by cgit v1.2.1 (git 2.18.1) at 2021-04-12 19:55:27 +0000