diff options
Diffstat (limited to 'tests/sign-verify-deterministic.c')
| -rw-r--r-- | tests/sign-verify-deterministic.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/tests/sign-verify-deterministic.c b/tests/sign-verify-deterministic.c new file mode 100644 index 0000000000..6e907288ee --- /dev/null +++ b/tests/sign-verify-deterministic.c @@ -0,0 +1,209 @@ +/* + * Copyright (C) 2017-2019 Red Hat, Inc. + * + * Author: Nikos Mavrogiannopoulos, Daiki Ueno + * + * This file is part of GnuTLS. + * + * GnuTLS is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * GnuTLS is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GnuTLS; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#ifndef _WIN32 +# include <netinet/in.h> +# include <sys/socket.h> +# include <arpa/inet.h> +#endif +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <gnutls/x509.h> +#include <gnutls/abstract.h> +#include "utils.h" + +/* verifies whether the sign-data and verify-data APIs + * operate as expected with deterministic ECDSA/DSA (RFC 6979) */ + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "<%d> %s", level, str); +} + +struct _key_tests_st { + const char *name; + gnutls_datum_t key; + gnutls_datum_t msg; + gnutls_datum_t sig; + gnutls_pk_algorithm_t pk; + gnutls_digest_algorithm_t digest; + gnutls_sign_algorithm_t sigalgo; + unsigned int sign_flags; +}; + +/* Test vectors from RFC 6979 */ +static const char dsa_privkey_rfc6979[] = + "-----BEGIN DSA PRIVATE KEY-----\n" + "MIIBugIBAAKBgQCG9coD3P6yJQY/+DCgx2m53Z1hU62R184n94fEMni0R+ZTO4ax\n" + "i+1uiki3hKFMJSxb4Nv2C4bWOFvS8S+3Y+2Ic6v9P1ui4KjApZCC6sBWk15Sna98\n" + "YQRniZx3re38hGyIGHC3sZsrWPm+BSGhcALjvda4ZoXukLPZobAreCsXeQIVAJlv\n" + "ln9sjjiNnijQHiBfupV6VpixAoGAB7D5JUYVC2JRS7dx4qDAzjh/A72mxWtQUgn/\n" + "Jf08Ez2Ju82X6QTgkRTZp9796t/JB46lRNLkAa7sxAu5+794/YeZWhChwny3eJtZ\n" + "S6fvtcQyap/lmgcOE223cXVGStykF75dzi9A0QpGo6OUPyarf9nAOY/4x27gpWgm\n" + "qKiPHb0CgYBd9eAd7THQKX4nThaRwZL+WGj++eGahHdkVLEAzxb2U5IZWji5BSPi\n" + "VC7mGHHARAy4fDIvxLTS7F4efsdm4b6NTOk1Q33BHDyP1CYziTPr/nOcs0ZfTTZo\n" + "xeRzUIJTseaC9ly9xPrpPC6iEjkOVJBahuIiMXC0Tqp9pd2f/Pt/OwIUQRYCyxmm\n" + "zMNElNedmO8eftWvJfc=\n" + "-----END DSA PRIVATE KEY-----\n"; + +static const char ecdsa_secp256r1_privkey_rfc6979[] = + "-----BEGIN EC PRIVATE KEY-----\n" + "MHgCAQEEIQDJr6nYRbp1FmtcIVdnsdaTTlDD2zbomxJ7imIrEg9nIaAKBggqhkjO\n" + "PQMBB6FEA0IABGD+1LolWp0xyWHrdMY1bWjASbiSO2H6bOZpYi5g8p+2eQP+EAi4\n" + "vJmkGunpVii8ZPLxsgwtfp9Rd6PClNRGIpk=\n" + "-----END EC PRIVATE KEY-----\n"; + +static const char sample[] = "sample"; + +static const +struct _key_tests_st tests[] = { + { + .name = "dsa key", + .key = {(void *) dsa_privkey_rfc6979, sizeof(dsa_privkey_rfc6979)-1}, + .msg = {(void *) sample, sizeof(sample)-1}, + .sig = {(void *) "\x30\x2d\x02\x15\x00\x81\xf2\xf5\x85\x0b\xe5\xbc\x12\x3c\x43\xf7\x1a\x30\x33\xe9\x38\x46\x11\xc5\x45\x02\x14\x4c\xdd\x91\x4b\x65\xeb\x6c\x66\xa8\xaa\xad\x27\x29\x9b\xee\x6b\x03\x5f\x5e\x89", 47}, + .pk = GNUTLS_PK_DSA, + .digest = GNUTLS_DIG_SHA256, + .sigalgo = GNUTLS_SIGN_DSA_SHA256, + .sign_flags = GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE + }, + { + .name = "ecdsa key", + .key = {(void *) ecdsa_secp256r1_privkey_rfc6979, sizeof(ecdsa_secp256r1_privkey_rfc6979)-1}, + .msg = {(void *) sample, sizeof(sample)-1}, + .sig = {(void *) "\x30\x46\x02\x21\x00\xef\xd4\x8b\x2a\xac\xb6\xa8\xfd\x11\x40\xdd\x9c\xd4\x5e\x81\xd6\x9d\x2c\x87\x7b\x56\xaa\xf9\x91\xc3\x4d\x0e\xa8\x4e\xaf\x37\x16\x02\x21\x00\xf7\xcb\x1c\x94\x2d\x65\x7c\x41\xd4\x36\xc7\xa1\xb6\xe2\x9f\x65\xf3\xe9\x00\xdb\xb9\xaf\xf4\x06\x4d\xc4\xab\x2f\x84\x3a\xcd\xa8", 72}, + .pk = GNUTLS_PK_ECDSA, + .digest = GNUTLS_DIG_SHA256, + .sigalgo = GNUTLS_SIGN_ECDSA_SECP256R1_SHA256, + .sign_flags = GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE + }, + { + .name = "ecdsa key", + .key = {(void *) ecdsa_secp256r1_privkey_rfc6979, sizeof(ecdsa_secp256r1_privkey_rfc6979)-1}, + .msg = {(void *) sample, sizeof(sample)-1}, + .sig = {(void *) "\x30\x46\x02\x21\x00\xef\xd4\x8b\x2a\xac\xb6\xa8\xfd\x11\x40\xdd\x9c\xd4\x5e\x81\xd6\x9d\x2c\x87\x7b\x56\xaa\xf9\x91\xc3\x4d\x0e\xa8\x4e\xaf\x37\x16\x02\x21\x00\xf7\xcb\x1c\x94\x2d\x65\x7c\x41\xd4\x36\xc7\xa1\xb6\xe2\x9f\x65\xf3\xe9\x00\xdb\xb9\xaf\xf4\x06\x4d\xc4\xab\x2f\x84\x3a\xcd\xa8", 72}, + .pk = GNUTLS_PK_ECDSA, + .digest = GNUTLS_DIG_SHA256, + .sigalgo = GNUTLS_SIGN_ECDSA_SHA256, + .sign_flags = GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE + }, + { + .name = "ecdsa key (q bits < h bits)", + .key = {(void *) ecdsa_secp256r1_privkey_rfc6979, sizeof(ecdsa_secp256r1_privkey_rfc6979)-1}, + .msg = {(void *) sample, sizeof(sample)-1}, + .sig = {(void *) "\x30\x44\x02\x20\x0e\xaf\xea\x03\x9b\x20\xe9\xb4\x23\x09\xfb\x1d\x89\xe2\x13\x05\x7c\xbf\x97\x3d\xc0\xcf\xc8\xf1\x29\xed\xdd\xc8\x00\xef\x77\x19\x02\x20\x48\x61\xf0\x49\x1e\x69\x98\xb9\x45\x51\x93\xe3\x4e\x7b\x0d\x28\x4d\xdd\x71\x49\xa7\x4b\x95\xb9\x26\x1f\x13\xab\xde\x94\x09\x54", 70}, + .pk = GNUTLS_PK_ECDSA, + .digest = GNUTLS_DIG_SHA384, + .sigalgo = GNUTLS_SIGN_ECDSA_SHA384, + .sign_flags = GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE + }, + { + .name = "ecdsa key (q bits > h bits)", + .key = {(void *) ecdsa_secp256r1_privkey_rfc6979, sizeof(ecdsa_secp256r1_privkey_rfc6979)-1}, + .msg = {(void *) sample, sizeof(sample)-1}, + .sig = {(void *) "\x30\x45\x02\x20\x53\xb2\xff\xf5\xd1\x75\x2b\x2c\x68\x9d\xf2\x57\xc0\x4c\x40\xa5\x87\xfa\xba\xbb\x3f\x6f\xc2\x70\x2f\x13\x43\xaf\x7c\xa9\xaa\x3f\x02\x21\x00\xb9\xaf\xb6\x4f\xdc\x03\xdc\x1a\x13\x1c\x7d\x23\x86\xd1\x1e\x34\x9f\x07\x0a\xa4\x32\xa4\xac\xc9\x18\xbe\xa9\x88\xbf\x75\xc7\x4c", 71}, + .pk = GNUTLS_PK_ECDSA, + .digest = GNUTLS_DIG_SHA224, + .sigalgo = GNUTLS_SIGN_ECDSA_SHA224, + .sign_flags = GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE + } +}; + +#define testfail(fmt, ...) \ + fail("%s: "fmt, tests[i].name, ##__VA_ARGS__) + +void doit(void) +{ + gnutls_pubkey_t pubkey; + gnutls_privkey_t privkey; + gnutls_datum_t signature; + int ret; + size_t i; + + global_init(); + + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(6); + + for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) { + success("testing: %s - %s", tests[i].name, gnutls_sign_algorithm_get_name(tests[i].sigalgo)); + + ret = gnutls_pubkey_init(&pubkey); + if (ret < 0) + testfail("gnutls_pubkey_init\n"); + + ret = gnutls_privkey_init(&privkey); + if (ret < 0) + testfail("gnutls_privkey_init\n"); + + signature.data = NULL; + signature.size = 0; + + ret = gnutls_privkey_import_x509_raw(privkey, &tests[i].key, GNUTLS_X509_FMT_PEM, NULL, 0); + if (ret < 0) + testfail("gnutls_privkey_import_x509_raw\n"); + + ret = gnutls_privkey_sign_data(privkey, tests[i].digest, tests[i].sign_flags, + &tests[i].msg, &signature); + if (gnutls_fips140_mode_enabled()) { + /* deterministic ECDSA/DSA is prohibited under FIPS */ + if (ret != GNUTLS_E_INVALID_REQUEST) + testfail("gnutls_privkey_sign_data unexpectedly succeeds\n"); + success(" - skipping\n"); + goto next; + } else { + if (ret < 0) + testfail("gnutls_privkey_sign_data\n"); + } + + if (signature.size != tests[i].sig.size || + memcmp(signature.data, tests[i].sig.data, signature.size) != 0) + testfail("signature does not match"); + + ret = gnutls_pubkey_import_privkey(pubkey, privkey, 0, 0); + if (ret < 0) + testfail("gnutls_pubkey_import_privkey\n"); + + ret = + gnutls_pubkey_verify_data2(pubkey, tests[i].sigalgo, 0, &tests[i].msg, + &signature); + if (ret < 0) + testfail("gnutls_pubkey_verify_data2\n"); + success(" - pass"); + + next: + gnutls_free(signature.data); + gnutls_privkey_deinit(privkey); + gnutls_pubkey_deinit(pubkey); + } + + gnutls_global_deinit(); +} |