d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
e095cbab2f
freebsd-dev/contrib/libfido2/examples/assert.c
Ed Maste f540a43052 libfido2: update to 1.9.0 
Some highlights from NEWS:

 ** Added OpenSSL 3.0 compatibility.
 ** Removed OpenSSL 1.0 compatibility.
 ** Support for FIDO 2.1 "minPinLength" extension.
 ** Support for COSE_EDDSA, COSE_ES256, and COSE_RS1 attestation.
 ** Support for TPM 2.0 attestation.
 ** Support for device timeouts; see fido_dev_set_timeout().
 ** New API calls:
  - es256_pk_from_EVP_PKEY;
  - fido_cred_attstmt_len;
  - fido_cred_attstmt_ptr;
  - fido_cred_pin_minlen;
  - fido_cred_set_attstmt;
  - fido_cred_set_pin_minlen;
  - fido_dev_set_pin_minlen_rpid;
  - fido_dev_set_timeout;
  - rs256_pk_from_EVP_PKEY.
 ** Reliability and portability fixes.
 ** Better handling of HID devices without identification strings; gh#381.

Relnotes:       Yes
Sponsored by:   The FreeBSD Foundation
2023-05-05 19:11:52 -04:00

329 lines
8.0 KiB
C
Raw Blame History

/*
* Copyright (c) 2018-2021 Yubico AB. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
#include <fido.h>
#include <fido/es256.h>
#include <fido/rs256.h>
#include <fido/eddsa.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "../openbsd-compat/openbsd-compat.h"
#include "extern.h"
static const unsigned char cd[32] = {
0xec, 0x8d, 0x8f, 0x78, 0x42, 0x4a, 0x2b, 0xb7,
0x82, 0x34, 0xaa, 0xca, 0x07, 0xa1, 0xf6, 0x56,
0x42, 0x1c, 0xb6, 0xf6, 0xb3, 0x00, 0x86, 0x52,
0x35, 0x2d, 0xa2, 0x62, 0x4a, 0xbe, 0x89, 0x76,
};
static void
usage(void)
{
fprintf(stderr, "usage: assert [-t ecdsa|rsa|eddsa] [-a cred_id] "
"[-h hmac_secret] [-s hmac_salt] [-P pin] [-T seconds] "
"[-b blobkey] [-puv] <pubkey> <device>\n");
exit(EXIT_FAILURE);
}
static void
verify_assert(int type, const unsigned char *authdata_ptr, size_t authdata_len,
const unsigned char *sig_ptr, size_t sig_len, bool up, bool uv, int ext,
const char *key)
{
fido_assert_t *assert = NULL;
EC_KEY *ec = NULL;
RSA *rsa = NULL;
EVP_PKEY *eddsa = NULL;
es256_pk_t *es256_pk = NULL;
rs256_pk_t *rs256_pk = NULL;
eddsa_pk_t *eddsa_pk = NULL;
void *pk;
int r;
/* credential pubkey */
switch (type) {
case COSE_ES256:
if ((ec = read_ec_pubkey(key)) == NULL)
errx(1, "read_ec_pubkey");
if ((es256_pk = es256_pk_new()) == NULL)
errx(1, "es256_pk_new");
if (es256_pk_from_EC_KEY(es256_pk, ec) != FIDO_OK)
errx(1, "es256_pk_from_EC_KEY");
pk = es256_pk;
EC_KEY_free(ec);
ec = NULL;
break;
case COSE_RS256:
if ((rsa = read_rsa_pubkey(key)) == NULL)
errx(1, "read_rsa_pubkey");
if ((rs256_pk = rs256_pk_new()) == NULL)
errx(1, "rs256_pk_new");
if (rs256_pk_from_RSA(rs256_pk, rsa) != FIDO_OK)
errx(1, "rs256_pk_from_RSA");
pk = rs256_pk;
RSA_free(rsa);
rsa = NULL;
break;
case COSE_EDDSA:
if ((eddsa = read_eddsa_pubkey(key)) == NULL)
errx(1, "read_eddsa_pubkey");
if ((eddsa_pk = eddsa_pk_new()) == NULL)
errx(1, "eddsa_pk_new");
if (eddsa_pk_from_EVP_PKEY(eddsa_pk, eddsa) != FIDO_OK)
errx(1, "eddsa_pk_from_EVP_PKEY");
pk = eddsa_pk;
EVP_PKEY_free(eddsa);
eddsa = NULL;
break;
default:
errx(1, "unknown credential type %d", type);
}
if ((assert = fido_assert_new()) == NULL)
errx(1, "fido_assert_new");
/* client data hash */
r = fido_assert_set_clientdata(assert, cd, sizeof(cd));
if (r != FIDO_OK)
errx(1, "fido_assert_set_clientdata: %s (0x%x)", fido_strerr(r), r);
/* relying party */
r = fido_assert_set_rp(assert, "localhost");
if (r != FIDO_OK)
errx(1, "fido_assert_set_rp: %s (0x%x)", fido_strerr(r), r);
/* authdata */
r = fido_assert_set_count(assert, 1);
if (r != FIDO_OK)
errx(1, "fido_assert_set_count: %s (0x%x)", fido_strerr(r), r);
r = fido_assert_set_authdata(assert, 0, authdata_ptr, authdata_len);
if (r != FIDO_OK)
errx(1, "fido_assert_set_authdata: %s (0x%x)", fido_strerr(r), r);
/* extension */
r = fido_assert_set_extensions(assert, ext);
if (r != FIDO_OK)
errx(1, "fido_assert_set_extensions: %s (0x%x)", fido_strerr(r),
r);
/* user presence */
if (up && (r = fido_assert_set_up(assert, FIDO_OPT_TRUE)) != FIDO_OK)
errx(1, "fido_assert_set_up: %s (0x%x)", fido_strerr(r), r);
/* user verification */
if (uv && (r = fido_assert_set_uv(assert, FIDO_OPT_TRUE)) != FIDO_OK)
errx(1, "fido_assert_set_uv: %s (0x%x)", fido_strerr(r), r);
/* sig */
r = fido_assert_set_sig(assert, 0, sig_ptr, sig_len);
if (r != FIDO_OK)
errx(1, "fido_assert_set_sig: %s (0x%x)", fido_strerr(r), r);
r = fido_assert_verify(assert, 0, type, pk);
if (r != FIDO_OK)
errx(1, "fido_assert_verify: %s (0x%x)", fido_strerr(r), r);
es256_pk_free(&es256_pk);
rs256_pk_free(&rs256_pk);
eddsa_pk_free(&eddsa_pk);
fido_assert_free(&assert);
}
int
main(int argc, char **argv)
{
bool up = false;
bool uv = false;
bool u2f = false;
fido_dev_t *dev = NULL;
fido_assert_t *assert = NULL;
const char *pin = NULL;
const char *blobkey_out = NULL;
const char *hmac_out = NULL;
unsigned char *body = NULL;
long long ms = 0;
size_t len;
int type = COSE_ES256;
int ext = 0;
int ch;
int r;
if ((assert = fido_assert_new()) == NULL)
errx(1, "fido_assert_new");
while ((ch = getopt(argc, argv, "P:T:a:b:h:ps:t:uv")) != -1) {
switch (ch) {
case 'P':
pin = optarg;
break;
case 'T':
if (base10(optarg, &ms) < 0)
errx(1, "base10: %s", optarg);
if (ms <= 0 || ms > 30)
errx(1, "-T: %s must be in (0,30]", optarg);
ms *= 1000; /* seconds to milliseconds */
break;
case 'a':
if (read_blob(optarg, &body, &len) < 0)
errx(1, "read_blob: %s", optarg);
if ((r = fido_assert_allow_cred(assert, body,
len)) != FIDO_OK)
errx(1, "fido_assert_allow_cred: %s (0x%x)",
fido_strerr(r), r);
free(body);
body = NULL;
break;
case 'b':
ext |= FIDO_EXT_LARGEBLOB_KEY;
blobkey_out = optarg;
break;
case 'h':
hmac_out = optarg;
break;
case 'p':
up = true;
break;
case 's':
ext |= FIDO_EXT_HMAC_SECRET;
if (read_blob(optarg, &body, &len) < 0)
errx(1, "read_blob: %s", optarg);
if ((r = fido_assert_set_hmac_salt(assert, body,
len)) != FIDO_OK)
errx(1, "fido_assert_set_hmac_salt: %s (0x%x)",
fido_strerr(r), r);
free(body);
body = NULL;
break;
case 't':
if (strcmp(optarg, "ecdsa") == 0)
type = COSE_ES256;
else if (strcmp(optarg, "rsa") == 0)
type = COSE_RS256;
else if (strcmp(optarg, "eddsa") == 0)
type = COSE_EDDSA;
else
errx(1, "unknown type %s", optarg);
break;
case 'u':
u2f = true;
break;
case 'v':
uv = true;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
fido_init(0);
if ((dev = fido_dev_new()) == NULL)
errx(1, "fido_dev_new");
r = fido_dev_open(dev, argv[1]);
if (r != FIDO_OK)
errx(1, "fido_dev_open: %s (0x%x)", fido_strerr(r), r);
if (u2f)
fido_dev_force_u2f(dev);
/* client data hash */
r = fido_assert_set_clientdata(assert, cd, sizeof(cd));
if (r != FIDO_OK)
errx(1, "fido_assert_set_clientdata: %s (0x%x)", fido_strerr(r), r);
/* relying party */
r = fido_assert_set_rp(assert, "localhost");
if (r != FIDO_OK)
errx(1, "fido_assert_set_rp: %s (0x%x)", fido_strerr(r), r);
/* extensions */
r = fido_assert_set_extensions(assert, ext);
if (r != FIDO_OK)
errx(1, "fido_assert_set_extensions: %s (0x%x)", fido_strerr(r),
r);
/* user presence */
if (up && (r = fido_assert_set_up(assert, FIDO_OPT_TRUE)) != FIDO_OK)
errx(1, "fido_assert_set_up: %s (0x%x)", fido_strerr(r), r);
/* user verification */
if (uv && (r = fido_assert_set_uv(assert, FIDO_OPT_TRUE)) != FIDO_OK)
errx(1, "fido_assert_set_uv: %s (0x%x)", fido_strerr(r), r);
/* timeout */
if (ms != 0 && (r = fido_dev_set_timeout(dev, (int)ms)) != FIDO_OK)
errx(1, "fido_dev_set_timeout: %s (0x%x)", fido_strerr(r), r);
if ((r = fido_dev_get_assert(dev, assert, pin)) != FIDO_OK) {
fido_dev_cancel(dev);
errx(1, "fido_dev_get_assert: %s (0x%x)", fido_strerr(r), r);
}
r = fido_dev_close(dev);
if (r != FIDO_OK)
errx(1, "fido_dev_close: %s (0x%x)", fido_strerr(r), r);
fido_dev_free(&dev);
if (fido_assert_count(assert) != 1)
errx(1, "fido_assert_count: %d signatures returned",
(int)fido_assert_count(assert));
/* when verifying, pin implies uv */
if (pin)
uv = true;
verify_assert(type, fido_assert_authdata_ptr(assert, 0),
fido_assert_authdata_len(assert, 0), fido_assert_sig_ptr(assert, 0),
fido_assert_sig_len(assert, 0), up, uv, ext, argv[0]);
if (hmac_out != NULL) {
/* extract the hmac secret */
if (write_blob(hmac_out, fido_assert_hmac_secret_ptr(assert, 0),
fido_assert_hmac_secret_len(assert, 0)) < 0)
errx(1, "write_blob");
}
if (blobkey_out != NULL) {
/* extract the hmac secret */
if (write_blob(blobkey_out,
fido_assert_largeblob_key_ptr(assert, 0),
fido_assert_largeblob_key_len(assert, 0)) < 0)
errx(1, "write_blob");
}
fido_assert_free(&assert);
exit(0);
}
Reference in New Issue View Git Blame Copy Permalink