#include "config.h" #define LIBSSH_STATIC #include #include #include "torture.h" #include "torture_pki.h" #include "torture_key.h" #include "pki.c" #define LIBSSH_RSA_TESTKEY "libssh_testkey.id_rsa" #define LIBSSH_RSA_TESTKEY_PASSPHRASE "libssh_testkey_passphrase.id_rsa" const char template[] = "temp_dir_XXXXXX"; const unsigned char RSA_HASH[] = "12345678901234567890"; const unsigned char SHA256_HASH[] = "12345678901234567890123456789012"; const unsigned char SHA512_HASH[] = "1234567890123456789012345678901234567890" "123456789012345678901234"; struct pki_st { char *cwd; char *temp_dir; }; static int setup_rsa_key(void **state) { struct pki_st *test_state = NULL; char *cwd = NULL; char *tmp_dir = NULL; int rc = 0; test_state = (struct pki_st *)malloc(sizeof(struct pki_st)); assert_non_null(test_state); cwd = torture_get_current_working_dir(); assert_non_null(cwd); tmp_dir = torture_make_temp_dir(template); assert_non_null(tmp_dir); test_state->cwd = cwd; test_state->temp_dir = tmp_dir; *state = test_state; rc = torture_change_dir(tmp_dir); assert_int_equal(rc, 0); printf("Changed directory to: %s\n", tmp_dir); torture_write_file(LIBSSH_RSA_TESTKEY, torture_get_testkey(SSH_KEYTYPE_RSA, 0)); torture_write_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, torture_get_testkey(SSH_KEYTYPE_RSA, 1)); torture_write_file(LIBSSH_RSA_TESTKEY ".pub", torture_get_testkey_pub(SSH_KEYTYPE_RSA)); torture_write_file(LIBSSH_RSA_TESTKEY "-cert.pub", torture_get_testkey_pub(SSH_KEYTYPE_RSA_CERT01)); return 0; } static int setup_openssh_rsa_key(void **state) { struct pki_st *test_state = NULL; char *cwd = NULL; char *tmp_dir = NULL; int rc = 0; test_state = (struct pki_st *)malloc(sizeof(struct pki_st)); assert_non_null(test_state); cwd = torture_get_current_working_dir(); assert_non_null(cwd); tmp_dir = torture_make_temp_dir(template); assert_non_null(tmp_dir); test_state->cwd = cwd; test_state->temp_dir = tmp_dir; *state = test_state; rc = torture_change_dir(tmp_dir); assert_int_equal(rc, 0); torture_write_file(LIBSSH_RSA_TESTKEY, torture_get_openssh_testkey(SSH_KEYTYPE_RSA, 0)); torture_write_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, torture_get_openssh_testkey(SSH_KEYTYPE_RSA, 1)); torture_write_file(LIBSSH_RSA_TESTKEY ".pub", torture_get_testkey_pub(SSH_KEYTYPE_RSA)); torture_write_file(LIBSSH_RSA_TESTKEY "-cert.pub", torture_get_testkey_pub(SSH_KEYTYPE_RSA_CERT01)); return 0; } static int teardown(void **state) { struct pki_st *test_state = NULL; int rc = 0; test_state = *((struct pki_st **)state); assert_non_null(test_state); assert_non_null(test_state->cwd); assert_non_null(test_state->temp_dir); rc = torture_change_dir(test_state->cwd); assert_int_equal(rc, 0); rc = torture_rmdirs(test_state->temp_dir); assert_int_equal(rc, 0); SAFE_FREE(test_state->temp_dir); SAFE_FREE(test_state->cwd); SAFE_FREE(test_state); return 0; } static void torture_pki_rsa_import_pubkey_file(void **state) { ssh_key pubkey = NULL; int rc; (void)state; /* The key doesn't have the hostname as comment after the key */ rc = ssh_pki_import_pubkey_file(LIBSSH_RSA_TESTKEY ".pub", &pubkey); assert_return_code(rc, errno); assert_non_null(pubkey); SSH_KEY_FREE(pubkey); } static void torture_pki_rsa_import_pubkey_from_openssh_privkey(void **state) { ssh_key pubkey = NULL; int rc; (void)state; /* The key doesn't have the hostname as comment after the key */ rc = ssh_pki_import_pubkey_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, &pubkey); assert_return_code(rc, errno); assert_non_null(pubkey); SSH_KEY_FREE(pubkey); } static void torture_pki_rsa_import_privkey_base64_NULL_key(void **state) { int rc; const char *passphrase = torture_get_testkey_passphrase(); (void) state; /* unused */ /* test if it returns -1 if key is NULL */ rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 0), passphrase, NULL, NULL, NULL); assert_true(rc == -1); } static void torture_pki_rsa_import_privkey_base64_NULL_str(void **state) { int rc; ssh_key key = NULL; const char *passphrase = torture_get_testkey_passphrase(); (void) state; /* unused */ /* test if it returns -1 if key_str is NULL */ rc = ssh_pki_import_privkey_base64(NULL, passphrase, NULL, NULL, &key); assert_true(rc == -1); SSH_KEY_FREE(key); } static void torture_pki_rsa_import_privkey_base64(void **state) { int rc; char *key_str = NULL; ssh_key key = NULL; const char *passphrase = torture_get_testkey_passphrase(); enum ssh_keytypes_e type; (void) state; /* unused */ key_str = torture_pki_read_file(LIBSSH_RSA_TESTKEY); assert_non_null(key_str); rc = ssh_pki_import_privkey_base64(key_str, passphrase, NULL, NULL, &key); assert_true(rc == 0); assert_non_null(key); type = ssh_key_type(key); assert_true(type == SSH_KEYTYPE_RSA); rc = ssh_key_is_private(key); assert_true(rc == 1); rc = ssh_key_is_public(key); assert_true(rc == 1); free(key_str); SSH_KEY_FREE(key); } static void torture_pki_rsa_publickey_from_privatekey(void **state) { int rc; ssh_key key = NULL; ssh_key pubkey = NULL; const char *passphrase = NULL; (void) state; /* unused */ rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 0), passphrase, NULL, NULL, &key); assert_true(rc == 0); assert_non_null(key); rc = ssh_key_is_private(key); assert_true(rc == 1); rc = ssh_pki_export_privkey_to_pubkey(key, &pubkey); assert_true(rc == SSH_OK); assert_non_null(pubkey); SSH_KEY_FREE(key); SSH_KEY_FREE(pubkey); } static void torture_pki_rsa_copy_cert_to_privkey(void **state) { /* * Tests copying a cert loaded into a public key to a private key. * The function is encryption type agnostic, no need to run this against * all supported key types. */ int rc; const char *passphrase = torture_get_testkey_passphrase(); ssh_key pubkey = NULL; ssh_key privkey = NULL; ssh_key cert = NULL; (void) state; /* unused */ rc = ssh_pki_import_cert_file(LIBSSH_RSA_TESTKEY "-cert.pub", &cert); assert_true(rc == SSH_OK); assert_non_null(cert); rc = ssh_pki_import_pubkey_file(LIBSSH_RSA_TESTKEY ".pub", &pubkey); assert_true(rc == SSH_OK); assert_non_null(pubkey); rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 0), passphrase, NULL, NULL, &privkey); assert_true(rc == SSH_OK); assert_non_null(privkey); /* Basic sanity. */ rc = ssh_pki_copy_cert_to_privkey(NULL, privkey); assert_true(rc == SSH_ERROR); rc = ssh_pki_copy_cert_to_privkey(pubkey, NULL); assert_true(rc == SSH_ERROR); /* A public key doesn't have a cert, copy should fail. */ assert_null(pubkey->cert); rc = ssh_pki_copy_cert_to_privkey(pubkey, privkey); assert_true(rc == SSH_ERROR); /* Copying the cert to non-cert keys should work fine. */ rc = ssh_pki_copy_cert_to_privkey(cert, pubkey); assert_true(rc == SSH_OK); assert_non_null(pubkey->cert); rc = ssh_pki_copy_cert_to_privkey(cert, privkey); assert_true(rc == SSH_OK); assert_non_null(privkey->cert); /* The private key's cert is already set, another copy should fail. */ rc = ssh_pki_copy_cert_to_privkey(cert, privkey); assert_true(rc == SSH_ERROR); SSH_KEY_FREE(cert); SSH_KEY_FREE(privkey); SSH_KEY_FREE(pubkey); } static void torture_pki_rsa_import_cert_file(void **state) { int rc; ssh_key cert = NULL; enum ssh_keytypes_e type; (void) state; /* unused */ rc = ssh_pki_import_cert_file(LIBSSH_RSA_TESTKEY "-cert.pub", &cert); assert_true(rc == 0); assert_non_null(cert); type = ssh_key_type(cert); assert_true(type == SSH_KEYTYPE_RSA_CERT01); rc = ssh_key_is_public(cert); assert_true(rc == 1); SSH_KEY_FREE(cert); } static void torture_pki_rsa_publickey_base64(void **state) { enum ssh_keytypes_e type; char *b64_key = NULL, *key_buf = NULL, *p = NULL; const char *q = NULL; ssh_key key = NULL; int rc; (void) state; /* unused */ key_buf = strdup(torture_get_testkey_pub(SSH_KEYTYPE_RSA)); assert_non_null(key_buf); q = p = key_buf; while (p != NULL && *p != '\0' && *p != ' ') p++; if (p != NULL) { *p = '\0'; } type = ssh_key_type_from_name(q); assert_true(type == SSH_KEYTYPE_RSA); q = ++p; while (p != NULL && *p != '\0' && *p != ' ') p++; if (p != NULL) { *p = '\0'; } rc = ssh_pki_import_pubkey_base64(q, type, &key); assert_true(rc == 0); assert_non_null(key); rc = ssh_pki_export_pubkey_base64(key, &b64_key); assert_true(rc == 0); assert_non_null(b64_key); assert_string_equal(q, b64_key); free(b64_key); free(key_buf); SSH_KEY_FREE(key); } static void torture_pki_rsa_generate_pubkey_from_privkey(void **state) { char pubkey_generated[4096] = {0}; ssh_key privkey = NULL; ssh_key pubkey = NULL; int rc; int len; (void) state; /* unused */ /* remove the public key, generate it from the private key and write it. */ unlink(LIBSSH_RSA_TESTKEY ".pub"); rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY, NULL, NULL, NULL, &privkey); assert_true(rc == 0); assert_non_null(privkey); rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey); assert_true(rc == SSH_OK); assert_non_null(pubkey); rc = ssh_pki_export_pubkey_file(pubkey, LIBSSH_RSA_TESTKEY ".pub"); assert_true(rc == 0); rc = torture_read_one_line(LIBSSH_RSA_TESTKEY ".pub", pubkey_generated, sizeof(pubkey_generated)); assert_true(rc == 0); len = torture_pubkey_len(torture_get_testkey_pub(SSH_KEYTYPE_RSA)); assert_memory_equal(torture_get_testkey_pub(SSH_KEYTYPE_RSA), pubkey_generated, len); SSH_KEY_FREE(privkey); SSH_KEY_FREE(pubkey); } static void torture_pki_rsa_duplicate_key(void **state) { int rc; char *b64_key = NULL; char *b64_key_gen = NULL; ssh_key pubkey = NULL; ssh_key privkey = NULL; ssh_key privkey_dup = NULL; (void) state; rc = ssh_pki_import_pubkey_file(LIBSSH_RSA_TESTKEY ".pub", &pubkey); assert_true(rc == 0); assert_non_null(pubkey); rc = ssh_pki_export_pubkey_base64(pubkey, &b64_key); assert_true(rc == 0); SSH_KEY_FREE(pubkey); assert_non_null(b64_key); rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY, NULL, NULL, NULL, &privkey); assert_true(rc == 0); assert_non_null(privkey); privkey_dup = ssh_key_dup(privkey); assert_non_null(privkey_dup); rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey); assert_true(rc == SSH_OK); assert_non_null(pubkey); rc = ssh_pki_export_pubkey_base64(pubkey, &b64_key_gen); assert_true(rc == 0); assert_non_null(b64_key_gen); assert_string_equal(b64_key, b64_key_gen); rc = ssh_key_cmp(privkey, privkey_dup, SSH_KEY_CMP_PRIVATE); assert_true(rc == 0); 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); } static void torture_pki_rsa_generate_key(void **state) { int rc; ssh_key key = NULL; ssh_signature sign = NULL; ssh_session session=ssh_new(); (void) state; rc = ssh_pki_generate(SSH_KEYTYPE_RSA, 1024, &key); assert_true(rc == SSH_OK); assert_non_null(key); sign = pki_do_sign(key, RSA_HASH, 20, SSH_DIGEST_SHA256); assert_non_null(sign); rc = pki_signature_verify(session,sign,key,RSA_HASH,20); assert_true(rc == SSH_OK); ssh_signature_free(sign); SSH_KEY_FREE(key); key=NULL; rc = ssh_pki_generate(SSH_KEYTYPE_RSA, 2048, &key); assert_true(rc == SSH_OK); assert_non_null(key); sign = pki_do_sign(key, RSA_HASH, 20, SSH_DIGEST_SHA256); assert_non_null(sign); rc = pki_signature_verify(session,sign,key,RSA_HASH,20); assert_true(rc == SSH_OK); ssh_signature_free(sign); SSH_KEY_FREE(key); key=NULL; rc = ssh_pki_generate(SSH_KEYTYPE_RSA, 4096, &key); assert_true(rc == SSH_OK); assert_non_null(key); sign = pki_do_sign(key, RSA_HASH, 20, SSH_DIGEST_SHA256); assert_non_null(sign); rc = pki_signature_verify(session,sign,key,RSA_HASH,20); assert_true(rc == SSH_OK); ssh_signature_free(sign); SSH_KEY_FREE(key); key=NULL; ssh_free(session); } static void torture_pki_rsa_sha2(void **state) { int rc; ssh_key key = NULL, cert = NULL; ssh_signature sign; ssh_session session=ssh_new(); (void) state; assert_non_null(session); /* Setup */ rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY, NULL, NULL, NULL, &key); assert_true(rc == SSH_OK); assert_non_null(key); rc = ssh_pki_import_cert_file(LIBSSH_RSA_TESTKEY "-cert.pub", &cert); assert_true(rc == SSH_OK); assert_non_null(cert); /* Sign using automatic digest */ sign = pki_do_sign(key, RSA_HASH, 20, SSH_DIGEST_AUTO); assert_non_null(sign); rc = pki_signature_verify(session, sign, key, RSA_HASH, 20); assert_ssh_return_code(session, rc); rc = pki_signature_verify(session, sign, cert, RSA_HASH, 20); assert_ssh_return_code(session, rc); ssh_signature_free(sign); /* Sign using old SHA1 digest */ sign = pki_do_sign(key, RSA_HASH, 20, SSH_DIGEST_SHA1); assert_non_null(sign); rc = pki_signature_verify(session, sign, key, RSA_HASH, 20); assert_ssh_return_code(session, rc); rc = pki_signature_verify(session, sign, cert, RSA_HASH, 20); assert_ssh_return_code(session, rc); ssh_signature_free(sign); /* Sign using new SHA256 digest */ sign = pki_do_sign(key, SHA256_HASH, 32, SSH_DIGEST_SHA256); assert_non_null(sign); rc = pki_signature_verify(session, sign, key, SHA256_HASH, 32); assert_ssh_return_code(session, rc); rc = pki_signature_verify(session, sign, cert, SHA256_HASH, 32); assert_ssh_return_code(session, rc); ssh_signature_free(sign); /* Sign using rsa-sha2-512 algorithm */ sign = pki_do_sign(key, SHA512_HASH, 64, SSH_DIGEST_SHA512); assert_non_null(sign); rc = pki_signature_verify(session, sign, key, SHA512_HASH, 64); assert_ssh_return_code(session, rc); rc = pki_signature_verify(session, sign, cert, SHA512_HASH, 64); assert_ssh_return_code(session, rc); ssh_signature_free(sign); /* Cleanup */ SSH_KEY_FREE(key); SSH_KEY_FREE(cert); ssh_free(session); } #ifdef HAVE_LIBCRYPTO static void torture_pki_rsa_write_privkey(void **state) { ssh_key origkey = NULL; ssh_key privkey = NULL; int rc; (void) state; /* unused */ rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY, NULL, NULL, NULL, &origkey); assert_true(rc == 0); assert_non_null(origkey); unlink(LIBSSH_RSA_TESTKEY); rc = ssh_pki_export_privkey_file(origkey, NULL, NULL, NULL, LIBSSH_RSA_TESTKEY); assert_true(rc == 0); rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY, NULL, NULL, NULL, &privkey); assert_true(rc == 0); assert_non_null(privkey); rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE); assert_true(rc == 0); SSH_KEY_FREE(origkey); SSH_KEY_FREE(privkey); /* Test with passphrase */ rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, torture_get_testkey_passphrase(), NULL, NULL, &origkey); assert_true(rc == 0); assert_non_null(origkey); unlink(LIBSSH_RSA_TESTKEY_PASSPHRASE); rc = ssh_pki_export_privkey_file(origkey, torture_get_testkey_passphrase(), NULL, NULL, LIBSSH_RSA_TESTKEY_PASSPHRASE); assert_true(rc == 0); /* Test with invalid passphrase */ rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, "invalid secret", NULL, NULL, &privkey); assert_true(rc == SSH_ERROR); assert_null(privkey); rc = ssh_pki_import_privkey_file(LIBSSH_RSA_TESTKEY_PASSPHRASE, torture_get_testkey_passphrase(), NULL, NULL, &privkey); assert_true(rc == 0); assert_non_null(privkey); rc = ssh_key_cmp(origkey, privkey, SSH_KEY_CMP_PRIVATE); assert_true(rc == 0); SSH_KEY_FREE(origkey); SSH_KEY_FREE(privkey); } #endif /* HAVE_LIBCRYPTO */ static void torture_pki_rsa_import_privkey_base64_passphrase(void **state) { int rc; ssh_key key = NULL; const char *passphrase = torture_get_testkey_passphrase(); (void) state; /* unused */ rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 1), passphrase, NULL, NULL, &key); assert_return_code(rc, errno); assert_non_null(key); rc = ssh_key_is_private(key); assert_true(rc == 1); SSH_KEY_FREE(key); /* test if it returns -1 if passphrase is wrong */ rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 1), "wrong passphrase !!", NULL, NULL, &key); assert_true(rc == -1); SSH_KEY_FREE(key); #ifndef HAVE_LIBCRYPTO /* test if it returns -1 if passphrase is NULL */ /* libcrypto asks for a passphrase, so skip this test */ rc = ssh_pki_import_privkey_base64(torture_get_testkey(SSH_KEYTYPE_RSA, 1), NULL, NULL, NULL, &key); assert_true(rc == -1); SSH_KEY_FREE(key); #endif } static void torture_pki_rsa_import_openssh_privkey_base64_passphrase(void **state) { int rc; ssh_key key = NULL; const char *passphrase = torture_get_testkey_passphrase(); const char *keystring = NULL; (void) state; /* unused */ keystring = torture_get_openssh_testkey(SSH_KEYTYPE_RSA, 1); assert_non_null(keystring); rc = ssh_pki_import_privkey_base64(keystring, passphrase, NULL, NULL, &key); assert_return_code(rc, errno); assert_non_null(key); rc = ssh_key_is_private(key); assert_true(rc == 1); SSH_KEY_FREE(key); /* test if it returns -1 if passphrase is wrong */ rc = ssh_pki_import_privkey_base64(keystring, "wrong passphrase !!", NULL, NULL, &key); assert_true(rc == -1); SSH_KEY_FREE(key); /* test if it returns -1 if passphrase is NULL */ /* libcrypto asks for a passphrase, so skip this test */ rc = ssh_pki_import_privkey_base64(keystring, NULL, NULL, NULL, &key); assert_true(rc == -1); SSH_KEY_FREE(key); } int torture_run_tests(void) { int rc; struct CMUnitTest tests[] = { cmocka_unit_test_setup_teardown(torture_pki_rsa_import_pubkey_file, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_pubkey_from_openssh_privkey, setup_openssh_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_privkey_base64_NULL_key, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_privkey_base64_NULL_str, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_privkey_base64, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_privkey_base64, setup_openssh_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_publickey_from_privatekey, setup_rsa_key, teardown), cmocka_unit_test(torture_pki_rsa_import_privkey_base64_passphrase), cmocka_unit_test(torture_pki_rsa_import_openssh_privkey_base64_passphrase), cmocka_unit_test_setup_teardown(torture_pki_rsa_copy_cert_to_privkey, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_import_cert_file, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_publickey_base64, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_generate_pubkey_from_privkey, setup_rsa_key, teardown), cmocka_unit_test_setup_teardown(torture_pki_rsa_duplicate_key, setup_rsa_key, teardown), cmocka_unit_test(torture_pki_rsa_generate_key), #ifdef HAVE_LIBCRYPTO cmocka_unit_test_setup_teardown(torture_pki_rsa_write_privkey, setup_rsa_key, teardown), #endif /* HAVE_LIBCRYPTO */ cmocka_unit_test_setup_teardown(torture_pki_rsa_sha2, setup_rsa_key, teardown), }; ssh_init(); torture_filter_tests(tests); rc = cmocka_run_group_tests(tests, NULL, NULL); ssh_finalize(); return rc; }