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import gnutls-3.6.14-7.el8_3

This commit is contained in:
CentOS Sources 2021-03-30 15:53:44 -04:00 committed by Stepan Oksanichenko
parent 10d8d357b1
commit 6405b112ca
8 changed files with 3859 additions and 1 deletions
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676
SOURCES/gnutls-3.6.14-fips-dh-check.patch Normal file
View File

@ -0,0 +1,676 @@
From bea53f1b46a64d6dcf5bbe4794740c4d4459f9bf Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Fri, 10 Jul 2020 09:35:49 +0200
Subject: [PATCH 1/5] dh: check validity of Z before export
SP800-56A rev3 section 5.7.1.1 step 2 mandates that the validity of the
calculated shared secret is verified before the data is returned to the
caller. This patch adds the validation check.
Suggested by Stephan Mueller.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/nettle/pk.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c
index 57a8560ed..08c7d4860 100644
--- a/lib/nettle/pk.c
+++ b/lib/nettle/pk.c
@@ -288,7 +288,7 @@ static int _wrap_nettle_pk_derive(gnutls_pk_algorithm_t algo,
switch (algo) {
case GNUTLS_PK_DH: {
bigint_t f, x, q, prime;
- bigint_t k = NULL, ff = NULL, r = NULL;
+ bigint_t k = NULL, primesub1 = NULL, r = NULL;
unsigned int bits;
if (nonce != NULL)
@@ -299,21 +299,20 @@ static int _wrap_nettle_pk_derive(gnutls_pk_algorithm_t algo,
q = priv->params[DH_Q];
prime = priv->params[DH_P];
- ret = _gnutls_mpi_init_multi(&k, &ff, &r, NULL);
+ ret = _gnutls_mpi_init_multi(&k, &primesub1, &r, NULL);
if (ret < 0)
return gnutls_assert_val(ret);
- ret = _gnutls_mpi_add_ui(ff, f, 1);
+ ret = _gnutls_mpi_sub_ui(primesub1, prime, 1);
if (ret < 0) {
gnutls_assert();
goto dh_cleanup;
}
- /* check if f==0,1, or f >= p-1.
- * or (ff=f+1) equivalently ff==1,2, ff >= p */
- if ((_gnutls_mpi_cmp_ui(ff, 2) == 0)
- || (_gnutls_mpi_cmp_ui(ff, 1) == 0)
- || (_gnutls_mpi_cmp(ff, prime) >= 0)) {
+ /* check if f==0,1, or f >= p-1 */
+ if ((_gnutls_mpi_cmp_ui(f, 1) == 0)
+ || (_gnutls_mpi_cmp_ui(f, 0) == 0)
+ || (_gnutls_mpi_cmp(f, primesub1) >= 0)) {
gnutls_assert();
ret = GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER;
goto dh_cleanup;
@@ -354,6 +353,15 @@ static int _wrap_nettle_pk_derive(gnutls_pk_algorithm_t algo,
goto dh_cleanup;
}
+ /* check if k==0,1, or k = p-1 */
+ if ((_gnutls_mpi_cmp_ui(k, 1) == 0)
+ || (_gnutls_mpi_cmp_ui(k, 0) == 0)
+ || (_gnutls_mpi_cmp(k, primesub1) == 0)) {
+ gnutls_assert();
+ ret = GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER;
+ goto dh_cleanup;
+ }
+
if (flags & PK_DERIVE_TLS13) {
ret =
_gnutls_mpi_dprint_size(k, out,
@@ -370,7 +378,7 @@ static int _wrap_nettle_pk_derive(gnutls_pk_algorithm_t algo,
ret = 0;
dh_cleanup:
_gnutls_mpi_release(&r);
- _gnutls_mpi_release(&ff);
+ _gnutls_mpi_release(&primesub1);
zrelease_temp_mpi_key(&k);
if (ret < 0)
goto cleanup;
--
2.26.2
From 13202600d3e42258d8758b05ff45a3e3d0f07e4e Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Fri, 10 Jul 2020 09:42:30 +0200
Subject: [PATCH 2/5] ecdh: check validity of P before export
SP800-56A rev3 section 5.7.1.2 step 2 mandates that the validity of
the calculated shared secret is verified before the data is returned
to the caller. This patch adds the validation check.
Suggested by Stephan Mueller.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/nettle/pk.c | 27 +++++++++++++++++++++------
1 file changed, 21 insertions(+), 6 deletions(-)
diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c
index 08c7d4860..7f0fa8e03 100644
--- a/lib/nettle/pk.c
+++ b/lib/nettle/pk.c
@@ -229,25 +229,38 @@ _gost_params_to_pubkey(const gnutls_pk_params_st * pk_params,
}
#endif
-static void
+static int
ecc_shared_secret(struct ecc_scalar *private_key,
struct ecc_point *public_key, void *out, unsigned size)
{
struct ecc_point r;
- mpz_t x;
+ mpz_t x, y;
+ int ret = 0;
mpz_init(x);
+ mpz_init(y);
ecc_point_init(&r, public_key->ecc);
ecc_point_mul(&r, private_key, public_key);
- ecc_point_get(&r, x, NULL);
+ ecc_point_get(&r, x, y);
+
+ /* Check if the point is not an identity element. Note that this cannot
+ * happen in nettle implementation, because it cannot represent an
+ * infinity point. */
+ if (mpz_cmp_ui(x, 0) == 0 && mpz_cmp_ui(y, 0) == 0) {
+ ret = gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
+ goto cleanup;
+ }
+
nettle_mpz_get_str_256(size, out, x);
+ cleanup:
mpz_clear(x);
+ mpz_clear(y);
ecc_point_clear(&r);
- return;
+ return ret;
}
#define MAX_DH_BITS DEFAULT_MAX_VERIFY_BITS
@@ -423,8 +436,10 @@ dh_cleanup:
goto ecc_cleanup;
}
- ecc_shared_secret(&ecc_priv, &ecc_pub, out->data,
- out->size);
+ ret = ecc_shared_secret(&ecc_priv, &ecc_pub, out->data,
+ out->size);
+ if (ret < 0)
+ gnutls_free(out->data);
ecc_cleanup:
ecc_point_clear(&ecc_pub);
--
2.26.2
From 245fb622e82bfa7b80d2cec7cafdbc65014ca3cb Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Fri, 17 Jul 2020 17:45:17 +0200
Subject: [PATCH 3/5] dh-primes: make the FIPS approved check return Q value
This is necessary for full public key validation in
SP800-56A (revision 3), section 5.6.2.3.1.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/auth/dh_common.c | 2 +-
lib/dh-primes.c | 38 +++++++++++++++++++++++---------------
lib/dh.h | 10 ++++++----
3 files changed, 30 insertions(+), 20 deletions(-)
diff --git a/lib/auth/dh_common.c b/lib/auth/dh_common.c
index 252eea0cb..fcd696d4d 100644
--- a/lib/auth/dh_common.c
+++ b/lib/auth/dh_common.c
@@ -259,7 +259,7 @@ _gnutls_proc_dh_common_server_kx(gnutls_session_t session,
#ifdef ENABLE_FIPS140
if (gnutls_fips140_mode_enabled() &&
- !_gnutls_dh_prime_is_fips_approved(data_p, n_p, data_g, n_g)) {
+ !_gnutls_dh_prime_match_fips_approved(data_p, n_p, data_g, n_g, NULL, NULL)) {
gnutls_assert();
return GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER;
}
diff --git a/lib/dh-primes.c b/lib/dh-primes.c
index a43a8e5de..a440b5b98 100644
--- a/lib/dh-primes.c
+++ b/lib/dh-primes.c
@@ -1894,25 +1894,28 @@ const gnutls_datum_t gnutls_modp_8192_group_generator = {
const unsigned int gnutls_modp_8192_key_bits = 512;
unsigned
-_gnutls_dh_prime_is_fips_approved(const uint8_t *prime,
- size_t prime_size,
- const uint8_t *generator,
- size_t generator_size)
+_gnutls_dh_prime_match_fips_approved(const uint8_t *prime,
+ size_t prime_size,
+ const uint8_t *generator,
+ size_t generator_size,
+ uint8_t **q,
+ size_t *q_size)
{
static const struct {
const gnutls_datum_t *prime;
const gnutls_datum_t *generator;
+ const gnutls_datum_t *q;
} primes[] = {
- { &gnutls_ffdhe_8192_group_prime, &gnutls_ffdhe_8192_group_generator },
- { &gnutls_ffdhe_6144_group_prime, &gnutls_ffdhe_6144_group_generator },
- { &gnutls_ffdhe_4096_group_prime, &gnutls_ffdhe_4096_group_generator },
- { &gnutls_ffdhe_3072_group_prime, &gnutls_ffdhe_3072_group_generator },
- { &gnutls_ffdhe_2048_group_prime, &gnutls_ffdhe_2048_group_generator },
- { &gnutls_modp_8192_group_prime, &gnutls_modp_8192_group_generator },
- { &gnutls_modp_6144_group_prime, &gnutls_modp_6144_group_generator },
- { &gnutls_modp_4096_group_prime, &gnutls_modp_4096_group_generator },
- { &gnutls_modp_3072_group_prime, &gnutls_modp_3072_group_generator },
- { &gnutls_modp_2048_group_prime, &gnutls_modp_2048_group_generator },
+ { &gnutls_ffdhe_8192_group_prime, &gnutls_ffdhe_8192_group_generator, &gnutls_ffdhe_8192_group_q },
+ { &gnutls_ffdhe_6144_group_prime, &gnutls_ffdhe_6144_group_generator, &gnutls_ffdhe_6144_group_q },
+ { &gnutls_ffdhe_4096_group_prime, &gnutls_ffdhe_4096_group_generator, &gnutls_ffdhe_4096_group_q },
+ { &gnutls_ffdhe_3072_group_prime, &gnutls_ffdhe_3072_group_generator, &gnutls_ffdhe_3072_group_q },
+ { &gnutls_ffdhe_2048_group_prime, &gnutls_ffdhe_2048_group_generator, &gnutls_ffdhe_2048_group_q },
+ { &gnutls_modp_8192_group_prime, &gnutls_modp_8192_group_generator, &gnutls_modp_8192_group_q },
+ { &gnutls_modp_6144_group_prime, &gnutls_modp_6144_group_generator, &gnutls_modp_6144_group_q },
+ { &gnutls_modp_4096_group_prime, &gnutls_modp_4096_group_generator, &gnutls_modp_4096_group_q },
+ { &gnutls_modp_3072_group_prime, &gnutls_modp_3072_group_generator, &gnutls_modp_3072_group_q },
+ { &gnutls_modp_2048_group_prime, &gnutls_modp_2048_group_generator, &gnutls_modp_2048_group_q },
};
size_t i;
@@ -1920,8 +1923,13 @@ _gnutls_dh_prime_is_fips_approved(const uint8_t *prime,
if (primes[i].prime->size == prime_size &&
memcmp(primes[i].prime->data, prime, primes[i].prime->size) == 0 &&
primes[i].generator->size == generator_size &&
- memcmp(primes[i].generator->data, generator, primes[i].generator->size) == 0)
+ memcmp(primes[i].generator->data, generator, primes[i].generator->size) == 0) {
+ if (q) {
+ *q = primes[i].q->data;
+ *q_size = primes[i].q->size;
+ }
return 1;
+ }
}
return 0;
diff --git a/lib/dh.h b/lib/dh.h
index 672451947..f5c2c0924 100644
--- a/lib/dh.h
+++ b/lib/dh.h
@@ -61,9 +61,11 @@ extern const gnutls_datum_t gnutls_modp_2048_group_generator;
extern const unsigned int gnutls_modp_2048_key_bits;
unsigned
-_gnutls_dh_prime_is_fips_approved(const uint8_t *prime,
- size_t prime_size,
- const uint8_t *generator,
- size_t generator_size);
+_gnutls_dh_prime_match_fips_approved(const uint8_t *prime,
+ size_t prime_size,
+ const uint8_t *generator,
+ size_t generator_size,
+ uint8_t **q,
+ size_t *q_size);
#endif /* GNUTLS_LIB_DH_H */
--
2.26.2
From 8b575625614fbe5a22b68dc8d1877efb1d44dd37 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Fri, 17 Jul 2020 17:47:06 +0200
Subject: [PATCH 4/5] dh: perform SP800-56A rev3 full pubkey validation on
keygen
This implements full public key validation required in SP800-56A rev3,
section 5.6.2.3.1.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/nettle/pk.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c
index 7f0fa8e03..057836bc2 100644
--- a/lib/nettle/pk.c
+++ b/lib/nettle/pk.c
@@ -71,6 +71,7 @@
#include "int/dsa-compute-k.h"
#include <gnettle.h>
#include <fips.h>
+#include "dh.h"
static inline const struct ecc_curve *get_supported_nist_curve(int curve);
static inline const struct ecc_curve *get_supported_gost_curve(int curve);
@@ -2131,6 +2132,53 @@ edwards_curve_mul_g(gnutls_pk_algorithm_t algo,
}
}
+static inline int
+dh_find_q(const gnutls_pk_params_st *pk_params, mpz_t q)
+{
+ gnutls_datum_t prime = { NULL, 0 };
+ gnutls_datum_t generator = { NULL, 0 };
+ uint8_t *data_q;
+ size_t n_q;
+ bigint_t _q;
+ int ret = 0;
+
+ ret = _gnutls_mpi_dprint(pk_params->params[DSA_P], &prime);
+ if (ret < 0) {
+ gnutls_assert();
+ goto cleanup;
+ }
+
+ ret = _gnutls_mpi_dprint(pk_params->params[DSA_G], &generator);
+ if (ret < 0) {
+ gnutls_assert();
+ goto cleanup;
+ }
+
+ if (!_gnutls_dh_prime_match_fips_approved(prime.data,
+ prime.size,
+ generator.data,
+ generator.size,
+ &data_q,
+ &n_q)) {
+ ret = gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
+ goto cleanup;
+ }
+
+ if (_gnutls_mpi_init_scan_nz(&_q, data_q, n_q) != 0) {
+ ret = gnutls_assert_val(GNUTLS_E_MPI_SCAN_FAILED);
+ goto cleanup;
+ }
+
+ mpz_set(q, TOMPZ(_q));
+ _gnutls_mpi_release(&_q);
+
+ cleanup:
+ gnutls_free(prime.data);
+ gnutls_free(generator.data);
+
+ return ret;
+}
+
/* To generate a DH key either q must be set in the params or
* level should be set to the number of required bits.
*/
@@ -2212,6 +2260,9 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
mpz_t x, y;
int max_tries;
unsigned have_q = 0;
+ mpz_t q;
+ mpz_t primesub1;
+ mpz_t ypowq;
if (algo != params->algo)
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
@@ -2229,6 +2280,10 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
mpz_init(x);
mpz_init(y);
+ mpz_init(q);
+ mpz_init(primesub1);
+ mpz_init(ypowq);
+
max_tries = 3;
do {
if (have_q) {
@@ -2260,8 +2315,40 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
ret = GNUTLS_E_LIB_IN_ERROR_STATE;
goto dh_fail;
}
+
} while(mpz_cmp_ui(y, 1) == 0);
+#ifdef ENABLE_FIPS140
+ if (_gnutls_fips_mode_enabled()) {
+ /* Perform FFC full public key validation checks
+ * according to SP800-56A (revision 3), 5.6.2.3.1.
+ */
+
+ /* Step 1: 2 <= y <= p - 2 */
+ mpz_sub_ui(primesub1, pub.p, 1);
+
+ if (mpz_cmp_ui(y, 2) < 0 || mpz_cmp(y, primesub1) >= 0) {
+ ret = gnutls_assert_val(GNUTLS_E_RANDOM_FAILED);
+ goto dh_fail;
+ }
+
+ /* Step 2: 1 = y^q mod p */
+ if (have_q)
+ mpz_set(q, pub.q);
+ else {
+ ret = dh_find_q(params, q);
+ if (ret < 0)
+ goto dh_fail;
+ }
+
+ mpz_powm(ypowq, y, q, pub.p);
+ if (mpz_cmp_ui(ypowq, 1) != 0) {
+ ret = gnutls_assert_val(GNUTLS_E_RANDOM_FAILED);
+ goto dh_fail;
+ }
+ }
+#endif
+
ret = _gnutls_mpi_init_multi(&params->params[DSA_Y], &params->params[DSA_X], NULL);
if (ret < 0) {
gnutls_assert();
@@ -2278,6 +2365,9 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
mpz_clear(r);
mpz_clear(x);
mpz_clear(y);
+ mpz_clear(q);
+ mpz_clear(primesub1);
+ mpz_clear(ypowq);
if (ret < 0)
goto fail;
--
2.26.2
From 23756c8580dff99d0856adca49dd22a55352ad62 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Sat, 18 Jul 2020 08:26:48 +0200
Subject: [PATCH 5/5] ecdh: perform SP800-56A rev3 full pubkey validation on
keygen
This implements full public key validation required in
SP800-56A rev3, section 5.6.2.3.3.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/nettle/pk.c | 182 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 180 insertions(+), 2 deletions(-)
diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c
index 057836bc2..588e9df50 100644
--- a/lib/nettle/pk.c
+++ b/lib/nettle/pk.c
@@ -1552,6 +1552,80 @@ static inline const struct ecc_curve *get_supported_nist_curve(int curve)
}
}
+static inline const char *get_supported_nist_curve_order(int curve)
+{
+ static const struct {
+ int curve;
+ const char *order;
+ } orders[] = {
+#ifdef ENABLE_NON_SUITEB_CURVES
+ { GNUTLS_ECC_CURVE_SECP192R1,
+ "ffffffffffffffffffffffff99def836"
+ "146bc9b1b4d22831" },
+ { GNUTLS_ECC_CURVE_SECP224R1,
+ "ffffffffffffffffffffffffffff16a2"
+ "e0b8f03e13dd29455c5c2a3d" },
+#endif
+ { GNUTLS_ECC_CURVE_SECP256R1,
+ "ffffffff00000000ffffffffffffffff"
+ "bce6faada7179e84f3b9cac2fc632551" },
+ { GNUTLS_ECC_CURVE_SECP384R1,
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffc7634d81f4372ddf"
+ "581a0db248b0a77aecec196accc52973" },
+ { GNUTLS_ECC_CURVE_SECP521R1,
+ "1fffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffa51868783bf2f966b7fcc0148f709a"
+ "5d03bb5c9b8899c47aebb6fb71e91386"
+ "409" },
+ };
+ size_t i;
+
+ for (i = 0; i < sizeof(orders)/sizeof(orders[0]); i++) {
+ if (orders[i].curve == curve)
+ return orders[i].order;
+ }
+ return NULL;
+}
+
+static inline const char *get_supported_nist_curve_modulus(int curve)
+{
+ static const struct {
+ int curve;
+ const char *order;
+ } orders[] = {
+#ifdef ENABLE_NON_SUITEB_CURVES
+ { GNUTLS_ECC_CURVE_SECP192R1,
+ "fffffffffffffffffffffffffffffffe"
+ "ffffffffffffffff" },
+ { GNUTLS_ECC_CURVE_SECP224R1,
+ "ffffffffffffffffffffffffffffffff"
+ "000000000000000000000001" },
+#endif
+ { GNUTLS_ECC_CURVE_SECP256R1,
+ "ffffffff000000010000000000000000"
+ "00000000ffffffffffffffffffffffff" },
+ { GNUTLS_ECC_CURVE_SECP384R1,
+ "ffffffffffffffffffffffffffffffff"
+ "fffffffffffffffffffffffffffffffe"
+ "ffffffff0000000000000000ffffffff" },
+ { GNUTLS_ECC_CURVE_SECP521R1,
+ "1ff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff" },
+ };
+ size_t i;
+
+ for (i = 0; i < sizeof(orders)/sizeof(orders[0]); i++) {
+ if (orders[i].curve == curve)
+ return orders[i].order;
+ }
+ return NULL;
+}
+
static inline const struct ecc_curve *get_supported_gost_curve(int curve)
{
switch (curve) {
@@ -2507,6 +2581,10 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
struct ecc_scalar key;
struct ecc_point pub;
const struct ecc_curve *curve;
+ struct ecc_scalar n;
+ struct ecc_scalar m;
+ struct ecc_point r;
+ mpz_t x, y, xx, yy, nn, mm;
curve = get_supported_nist_curve(level);
if (curve == NULL)
@@ -2514,8 +2592,18 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
gnutls_assert_val
(GNUTLS_E_ECC_UNSUPPORTED_CURVE);
+ mpz_init(x);
+ mpz_init(y);
+ mpz_init(xx);
+ mpz_init(yy);
+ mpz_init(nn);
+ mpz_init(mm);
+
ecc_scalar_init(&key, curve);
ecc_point_init(&pub, curve);
+ ecc_scalar_init(&n, curve);
+ ecc_scalar_init(&m, curve);
+ ecc_point_init(&r, curve);
ecdsa_generate_keypair(&pub, &key, NULL, rnd_func);
if (HAVE_LIB_ERROR()) {
@@ -2533,15 +2621,105 @@ wrap_nettle_pk_generate_keys(gnutls_pk_algorithm_t algo,
params->curve = level;
params->params_nr = ECC_PRIVATE_PARAMS;
- ecc_point_get(&pub, TOMPZ(params->params[ECC_X]),
- TOMPZ(params->params[ECC_Y]));
+ ecc_point_get(&pub, x, y);
+
+#ifdef ENABLE_FIPS140
+ if (_gnutls_fips_mode_enabled()) {
+ /* Perform ECC full public key validation checks
+ * according to SP800-56A (revision 3), 5.6.2.3.3.
+ */
+
+ const char *order, *modulus;
+
+ /* Step 1: verify that Q is not an identity
+ * element (an infinity point). Note that this
+ * cannot happen in the nettle implementation,
+ * because it cannot represent an infinity point
+ * on curves. */
+ if (mpz_cmp_ui(x, 0) == 0 && mpz_cmp_ui(y, 0) == 0) {
+ ret = gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
+ goto ecc_fail;
+ }
+
+ /* Step 2: verify that both coordinates of Q are
+ * in the range [0, p - 1].
+ *
+ * Step 3: verify that Q lie on the curve
+ *
+ * Both checks are performed in nettle. */
+ if (!ecc_point_set(&r, x, y)) {
+ ret = gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
+ goto ecc_fail;
+ }
+
+ /* Step 4: verify that n * Q, where n is the
+ * curve order, result in an identity element
+ *
+ * Since nettle internally cannot represent an
+ * identity element on curves, we validate this
+ * instead:
+ *
+ * (n - 1) * Q = -Q
+ *
+ * That effectively means: n * Q = -Q + Q = O
+ */
+ order = get_supported_nist_curve_order(level);
+ if (unlikely(order == NULL)) {
+ ret = gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);
+ goto ecc_fail;
+ }
+
+ ret = mpz_set_str(nn, order, 16);
+ if (unlikely(ret < 0)) {
+ ret = gnutls_assert_val(GNUTLS_E_MPI_SCAN_FAILED);
+ goto ecc_fail;
+ }
+
+ modulus = get_supported_nist_curve_modulus(level);
+ if (unlikely(modulus == NULL)) {
+ ret = gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);
+ goto ecc_fail;
+ }
+
+ ret = mpz_set_str(mm, modulus, 16);
+ if (unlikely(ret < 0)) {
+ ret = gnutls_assert_val(GNUTLS_E_MPI_SCAN_FAILED);
+ goto ecc_fail;
+ }
+
+ /* (n - 1) * Q = -Q */
+ mpz_sub_ui (nn, nn, 1);
+ ecc_scalar_set(&n, nn);
+ ecc_point_mul(&r, &n, &r);
+ ecc_point_get(&r, xx, yy);
+ mpz_sub (mm, mm, y);
+
+ if (mpz_cmp(xx, x) != 0 || mpz_cmp(yy, mm) != 0) {
+ ret = gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
+ goto ecc_fail;
+ }
+ }
+#endif
+
+ mpz_set(TOMPZ(params->params[ECC_X]), x);
+ mpz_set(TOMPZ(params->params[ECC_Y]), y);
+
ecc_scalar_get(&key, TOMPZ(params->params[ECC_K]));
ret = 0;
ecc_fail:
+ mpz_clear(x);
+ mpz_clear(y);
+ mpz_clear(xx);
+ mpz_clear(yy);
+ mpz_clear(nn);
+ mpz_clear(mm);
ecc_point_clear(&pub);
ecc_scalar_clear(&key);
+ ecc_point_clear(&r);
+ ecc_scalar_clear(&n);
+ ecc_scalar_clear(&m);
if (ret < 0)
goto fail;
--
2.26.2

1843
SOURCES/gnutls-3.6.14-fips-dh-primes.patch Normal file
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File diff suppressed because it is too large Load Diff

204
SOURCES/gnutls-3.6.14-fips-dh-selftests.patch Normal file
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@ -0,0 +1,204 @@
From f09b7627a63defb1c55e9965fb05e0bbddb90247 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Tue, 6 Oct 2020 11:54:21 +0200
Subject: [PATCH] fips: use larger prime for DH self-tests
According to FIPS140-2 IG 7.5, the minimum key size of FFC through
2030 is defined as 2048 bits. This updates the relevant self-test
using ffdhe3072 defined in RFC 7919.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/crypto-selftests-pk.c | 142 ++++++++++++++++++++++++++++++++++----
lib/dh-primes.c | 4 --
2 files changed, 130 insertions(+), 16 deletions(-)
diff --git a/lib/crypto-selftests-pk.c b/lib/crypto-selftests-pk.c
index 70b0f618f..9b7c692a8 100644
--- a/lib/crypto-selftests-pk.c
+++ b/lib/crypto-selftests-pk.c
@@ -620,32 +620,150 @@ static int test_dh(void)
gnutls_pk_params_st priv;
gnutls_pk_params_st pub;
gnutls_datum_t out = {NULL, 0};
+
+ /* FFDHE 3072 test vector provided by Stephan Mueller in:
+ * https://gitlab.com/gnutls/gnutls/-/merge_requests/1342#note_424430996
+ */
static const uint8_t known_dh_k[] = {
- 0x10, 0x25, 0x04, 0xb5, 0xc6, 0xc2, 0xcb,
- 0x0c, 0xe9, 0xc5, 0x58, 0x0d, 0x22, 0x62};
- static const uint8_t test_p[] = {
- 0x24, 0x85, 0xdd, 0x3a, 0x74, 0x42, 0xe4,
- 0xb3, 0xf1, 0x0b, 0x13, 0xf9, 0x17, 0x4d };
- static const uint8_t test_g[] = { 0x02 };
+ 0xec, 0xb3, 0x85, 0x0c, 0x72, 0x55, 0x55, 0xc2, 0x98, 0x36,
+ 0xbe, 0x75, 0x9e, 0xc9, 0x9d, 0x8b, 0x16, 0xa6, 0xe6, 0x84,
+ 0x33, 0x12, 0x80, 0x1d, 0xac, 0xde, 0x6a, 0xd7, 0x3b, 0x1e,
+ 0x15, 0xca, 0x5d, 0x26, 0xb3, 0x0a, 0x35, 0xf4, 0xbb, 0xad,
+ 0x71, 0xcb, 0x03, 0x1a, 0xcb, 0xfb, 0x83, 0xf0, 0xa8, 0xde,
+ 0xed, 0x5e, 0x3d, 0x98, 0xd2, 0xb0, 0xef, 0xad, 0xdf, 0x32,
+ 0xa0, 0x16, 0x7d, 0x0e, 0x29, 0xd8, 0x85, 0xca, 0x12, 0x97,
+ 0x56, 0xab, 0x6a, 0x26, 0xa4, 0x46, 0x3d, 0x87, 0xd7, 0xe0,
+ 0xb4, 0x3e, 0x28, 0x75, 0xac, 0x59, 0xc5, 0x71, 0x3a, 0x24,
+ 0x15, 0x76, 0x98, 0x72, 0x94, 0x2d, 0xd0, 0x0e, 0xbc, 0x9a,
+ 0x77, 0xd4, 0xe2, 0xb2, 0x76, 0x54, 0x4a, 0x56, 0xbe, 0x0b,
+ 0x43, 0xf8, 0x21, 0x6f, 0x54, 0x32, 0xde, 0xb7, 0xd5, 0xb7,
+ 0x08, 0x00, 0xd2, 0x57, 0x8c, 0x0b, 0x8b, 0x02, 0x3e, 0xdb,
+ 0x72, 0x54, 0x3a, 0xc0, 0x50, 0x66, 0xbc, 0xc9, 0x67, 0xf5,
+ 0x22, 0x28, 0xf2, 0x3c, 0x51, 0x94, 0x61, 0x26, 0x9a, 0xc6,
+ 0x42, 0x0e, 0x8b, 0x42, 0xad, 0x79, 0x40, 0xa9, 0x0b, 0xdc,
+ 0x84, 0xd5, 0x71, 0x83, 0x94, 0xd9, 0x83, 0x2f, 0x08, 0x74,
+ 0xbc, 0x37, 0x6a, 0x3e, 0x1e, 0xbc, 0xcc, 0x09, 0x23, 0x30,
+ 0x79, 0x01, 0x39, 0xf6, 0xe3, 0xa8, 0xc0, 0xfa, 0x7e, 0xdb,
+ 0x0b, 0x71, 0x3e, 0x4f, 0x1f, 0x69, 0x84, 0xa6, 0x58, 0x6c,
+ 0x36, 0x2c, 0xcc, 0xb4, 0x7c, 0x94, 0xec, 0x06, 0x0b, 0x11,
+ 0x53, 0x95, 0xe6, 0x05, 0x43, 0xa4, 0xe4, 0xea, 0x1d, 0x4f,
+ 0xdc, 0xd0, 0x38, 0x0e, 0x32, 0xa1, 0xde, 0xd9, 0x8d, 0xd8,
+ 0x20, 0xac, 0x04, 0x83, 0xf8, 0x1b, 0x55, 0x52, 0x16, 0x20,
+ 0xe3, 0x2e, 0x6d, 0x11, 0x15, 0x29, 0x2f, 0x3a, 0x7c, 0x80,
+ 0x0a, 0x71, 0x3d, 0x31, 0x9c, 0x1b, 0x73, 0x59, 0xe1, 0x0d,
+ 0x27, 0xc5, 0xc0, 0x6a, 0x72, 0x3a, 0x5b, 0xd6, 0xf6, 0x50,
+ 0xe6, 0x69, 0x48, 0x1e, 0xfd, 0xeb, 0x4a, 0x47, 0x73, 0xfb,
+ 0x88, 0x14, 0xea, 0x6d, 0x36, 0xe1, 0x4c, 0x2c, 0xf9, 0x04,
+ 0xc1, 0xb7, 0x29, 0xfc, 0x5d, 0x02, 0x5d, 0x1c, 0x4d, 0x31,
+ 0x4a, 0x51, 0x3f, 0xa4, 0x45, 0x19, 0x29, 0xc4, 0x32, 0xa6,
+ 0x45, 0xdb, 0x94, 0x3a, 0xbd, 0x76, 0x2c, 0xd6, 0x1a, 0xb1,
+ 0xff, 0xe7, 0x62, 0x75, 0x16, 0xe5, 0x0b, 0xa3, 0x3a, 0x93,
+ 0x84, 0xd6, 0xad, 0xc2, 0x24, 0x68, 0x3d, 0xd6, 0x07, 0xe4,
+ 0xbe, 0x5a, 0x49, 0x31, 0x06, 0xad, 0x3f, 0x31, 0x4a, 0x1c,
+ 0xf7, 0x58, 0xdf, 0x34, 0xcb, 0xc8, 0xa9, 0x07, 0x24, 0x42,
+ 0x63, 0xa5, 0x8e, 0xdd, 0x37, 0x78, 0x92, 0x68, 0x3f, 0xd8,
+ 0x2f, 0xea, 0x8c, 0xf1, 0x8e, 0xd4, 0x8b, 0xa7, 0x3f, 0xa0,
+ 0xfa, 0xaf, 0xf0, 0x35,
+ };
static const uint8_t test_x[] = {
- 0x06, 0x2c, 0x96, 0xae, 0x0e, 0x9e, 0x9b,
- 0xbb, 0x41, 0x51, 0x7a, 0xa7, 0xc5, 0xfe };
+ 0x16, 0x5c, 0xa6, 0xe0, 0x9b, 0x87, 0xfa, 0x2d, 0xbc, 0x13,
+ 0x20, 0xcd, 0xac, 0x4e, 0xcc, 0x60, 0x1e, 0x48, 0xec, 0xbe,
+ 0x73, 0x0c, 0xa8, 0x6b, 0x6e, 0x2a, 0xee, 0xdd, 0xd8, 0xf3,
+ 0x2d, 0x5f, 0x75, 0xf3, 0x07, 0x94, 0x88, 0x3d, 0xb1, 0x38,
+ 0xcf, 0xae, 0x4a, 0xcc, 0xcb, 0x6a, 0x80, 0xbc, 0xeb, 0x3b,
+ 0xaa, 0x0b, 0x18, 0x74, 0x58, 0x7c, 0x3e, 0x74, 0xef, 0xb6,
+ 0xd3, 0x15, 0xee, 0x73, 0x29, 0x88, 0x7b, 0x65, 0x02, 0x39,
+ 0x33, 0xec, 0x22, 0x06, 0x8c, 0x5b, 0xd6, 0x2f, 0x4c, 0xf7,
+ 0xe0, 0x97, 0x6d, 0x2a, 0x90, 0x36, 0xfe, 0x1a, 0x44, 0x4d,
+ 0x9d, 0x41, 0x4b, 0xcb, 0xec, 0x25, 0xf4, 0xc3, 0xa5, 0x91,
+ 0xd0, 0x90, 0xc9, 0x34, 0x7b, 0xba, 0x27, 0x30, 0x5a, 0xa2,
+ 0x21, 0x58, 0xce, 0x88, 0x25, 0x39, 0xaf, 0xf1, 0x17, 0x02,
+ 0x12, 0xf8, 0x55, 0xdc, 0xd2, 0x08, 0x5b, 0xd3, 0xc7, 0x8e,
+ 0xcf, 0x29, 0x85, 0x85, 0xdb, 0x5c, 0x08, 0xc2, 0xd7, 0xb0,
+ 0x33, 0x0e, 0xe3, 0xb9, 0x2c, 0x1a, 0x1d, 0x4b, 0xe5, 0x76,
+ 0x8f, 0xd3, 0x14, 0xb6, 0x8c, 0xdc, 0x9a, 0xe8, 0x15, 0x60,
+ 0x60, 0x5e, 0xaa, 0xf9, 0xfa, 0xa6, 0xb2, 0x4f, 0xff, 0x46,
+ 0xc1, 0x5e, 0x93, 0x50, 0x90, 0x7e, 0x4c, 0x26, 0xd7, 0xbb,
+ 0x21, 0x05, 0x3d, 0x27, 0xc5, 0x9b, 0x0d, 0x46, 0x69, 0xe4,
+ 0x74, 0x87, 0x74, 0x55, 0xee, 0x5f, 0xe5, 0x72, 0x04, 0x46,
+ 0x1f, 0x2e, 0x55, 0xc7, 0xcc, 0x2b, 0x2b, 0x39, 0x6d, 0x90,
+ 0x60, 0x31, 0x37, 0x5b, 0x44, 0xde, 0xfd, 0xf2, 0xd1, 0xc6,
+ 0x9c, 0x12, 0x82, 0xcc, 0x7c, 0xb1, 0x0e, 0xa9, 0x95, 0x9d,
+ 0xe0, 0xa8, 0x3e, 0xc1, 0xa3, 0x4a, 0x6a, 0x37, 0x59, 0x17,
+ 0x93, 0x63, 0x1e, 0xbf, 0x04, 0xa3, 0xaa, 0xc0, 0x1d, 0xc4,
+ 0x6d, 0x7a, 0xdc, 0x69, 0x9c, 0xb0, 0x22, 0x56, 0xd9, 0x76,
+ 0x92, 0x2d, 0x1e, 0x62, 0xae, 0xfd, 0xd6, 0x9b, 0xfd, 0x08,
+ 0x2c, 0x95, 0xec, 0xe7, 0x02, 0x43, 0x62, 0x68, 0x1a, 0xaf,
+ 0x46, 0x59, 0xb7, 0xce, 0x8e, 0x42, 0x24, 0xae, 0xf7, 0x0e,
+ 0x9a, 0x3b, 0xf8, 0x77, 0xdf, 0x26, 0x85, 0x9f, 0x45, 0xad,
+ 0x8c, 0xa9, 0x54, 0x9c, 0x46, 0x44, 0xd5, 0x8a, 0xe9, 0xcc,
+ 0x34, 0x5e, 0xc5, 0xd1, 0x42, 0x6f, 0x44, 0xf3, 0x0f, 0x90,
+ 0x3a, 0x32, 0x1a, 0x9c, 0x2a, 0x63, 0xec, 0x21, 0xb4, 0xfc,
+ 0xfa, 0xa5, 0xcf, 0xe7, 0x9e, 0x43, 0xc7, 0x49, 0x56, 0xbc,
+ 0x50, 0xc5, 0x84, 0xf0, 0x42, 0xc8, 0x6a, 0xf1, 0x78, 0xe4,
+ 0xaa, 0x06, 0x37, 0xe1, 0x30, 0xf7, 0x65, 0x97, 0xca, 0xfd,
+ 0x35, 0xfa, 0xeb, 0x48, 0x6d, 0xaa, 0x45, 0x46, 0x9d, 0xbc,
+ 0x1d, 0x98, 0x17, 0x45, 0xa3, 0xee, 0x21, 0xa0, 0x97, 0x38,
+ 0x80, 0xc5, 0x28, 0x1f,
+ };
static const uint8_t test_y[] = { /* y=g^x mod p */
- 0x1e, 0xca, 0x23, 0x2a, 0xfd, 0x34, 0xe1,
- 0x10, 0x7a, 0xff, 0xaf, 0x2d, 0xaa, 0x53 };
+ 0x93, 0xeb, 0x5c, 0x37, 0x1d, 0x3c, 0x06, 0x6f, 0xbf, 0xbe,
+ 0x96, 0x51, 0x26, 0x58, 0x81, 0x36, 0xc6, 0x4f, 0x9a, 0x34,
+ 0xc4, 0xc5, 0xa8, 0xa3, 0x2c, 0x41, 0x76, 0xa8, 0xc6, 0xc0,
+ 0xa0, 0xc8, 0x51, 0x36, 0xc4, 0x40, 0x4e, 0x2c, 0x69, 0xf7,
+ 0x51, 0xbb, 0xb0, 0xd6, 0xf5, 0xdb, 0x40, 0x29, 0x50, 0x3b,
+ 0x8a, 0xf9, 0xf3, 0x53, 0x78, 0xfc, 0x86, 0xe9, 0xf1, 0xe9,
+ 0xac, 0x85, 0x13, 0x65, 0x62, 0x22, 0x04, 0x1b, 0x14, 0x2a,
+ 0xf4, 0x8f, 0x2f, 0xf1, 0x2f, 0x81, 0xd6, 0x18, 0x0e, 0x76,
+ 0x91, 0x43, 0xb2, 0xfc, 0x7c, 0x6f, 0x0c, 0x45, 0x37, 0x31,
+ 0x31, 0x58, 0x5c, 0xdf, 0x42, 0x24, 0x7a, 0xba, 0x8b, 0x7f,
+ 0x79, 0x06, 0x07, 0xef, 0xd6, 0x06, 0xeb, 0xcb, 0x3c, 0xbd,
+ 0xbc, 0xe5, 0xff, 0xfd, 0x62, 0x15, 0x0c, 0x40, 0x46, 0x37,
+ 0xef, 0xd0, 0xa1, 0xde, 0x63, 0x4f, 0x20, 0x0b, 0x45, 0x7d,
+ 0x06, 0x77, 0xfd, 0x23, 0xc1, 0x32, 0x8a, 0x89, 0x65, 0x16,
+ 0xe8, 0x48, 0x12, 0x1c, 0x25, 0x33, 0x2d, 0xbd, 0xd8, 0x9f,
+ 0x1c, 0x9d, 0xbc, 0xe3, 0x08, 0x60, 0x87, 0x1a, 0xc6, 0x06,
+ 0x36, 0xd2, 0xac, 0x09, 0x6d, 0x99, 0x02, 0x89, 0xc6, 0x12,
+ 0x93, 0x8c, 0x4b, 0xd0, 0x7e, 0x36, 0x8a, 0xd6, 0xa0, 0x97,
+ 0x4f, 0x97, 0x3f, 0x97, 0x0b, 0xfe, 0x05, 0xfc, 0xc8, 0xef,
+ 0x21, 0x4d, 0x4a, 0x06, 0x6e, 0xb4, 0xa6, 0x4f, 0xe1, 0xdd,
+ 0x44, 0x06, 0xfa, 0xd5, 0x0e, 0x54, 0xf5, 0x54, 0x3e, 0x8c,
+ 0xb9, 0x85, 0x86, 0x00, 0x40, 0x98, 0xe7, 0x01, 0xdd, 0x93,
+ 0x9d, 0x95, 0xea, 0xf0, 0xd3, 0x99, 0x4b, 0xeb, 0xd5, 0x79,
+ 0x47, 0xa4, 0xad, 0x2a, 0xe0, 0x4d, 0x36, 0x3b, 0x46, 0x10,
+ 0x96, 0xbb, 0x48, 0xe9, 0xa1, 0x78, 0x01, 0x35, 0x0a, 0x5c,
+ 0x7b, 0x3f, 0xf5, 0xf7, 0xb1, 0xe3, 0x97, 0x17, 0x4d, 0x76,
+ 0x10, 0x8d, 0x68, 0x4c, 0x94, 0x7d, 0xee, 0x0e, 0x20, 0x8b,
+ 0xce, 0x7d, 0x0a, 0xa3, 0x51, 0xfb, 0xe6, 0xcf, 0xf0, 0x0e,
+ 0x7f, 0x3c, 0xd4, 0xef, 0x56, 0x31, 0xb2, 0x95, 0xf0, 0x5f,
+ 0x4b, 0x9c, 0x03, 0x9e, 0xae, 0xb1, 0xc1, 0x46, 0xd7, 0xc0,
+ 0x4f, 0xb0, 0xf6, 0x6c, 0xe1, 0xe9, 0x2a, 0x97, 0xe0, 0x3f,
+ 0x3a, 0x93, 0x04, 0xcd, 0x41, 0x7d, 0x45, 0x03, 0xb3, 0x40,
+ 0x20, 0xe6, 0xad, 0x2d, 0xd3, 0xf7, 0x32, 0x7b, 0xcc, 0x4f,
+ 0x81, 0x18, 0x4c, 0x50, 0x77, 0xc4, 0xb7, 0x6a, 0x4d, 0x05,
+ 0xd8, 0x6d, 0xbf, 0x6f, 0xba, 0x1d, 0x38, 0x78, 0x87, 0xd2,
+ 0x8e, 0xc2, 0x6d, 0xb6, 0xed, 0x66, 0x61, 0xa8, 0xb9, 0x19,
+ 0x0e, 0x93, 0xd1, 0xcd, 0x5b, 0xbe, 0x19, 0x05, 0x52, 0x43,
+ 0xd6, 0xc1, 0x07, 0x3c, 0x6a, 0x62, 0xbd, 0x33, 0x9b, 0x1b,
+ 0x02, 0x42, 0x61, 0x14,
+ };
gnutls_pk_params_init(&priv);
gnutls_pk_params_init(&pub);
priv.algo = pub.algo = GNUTLS_PK_DH;
- ret = _gnutls_mpi_init_scan(&priv.params[DH_P], test_p, sizeof(test_p));
+ ret = _gnutls_mpi_init_scan(&priv.params[DH_P],
+ gnutls_ffdhe_3072_group_prime.data,
+ gnutls_ffdhe_3072_group_prime.size);
if (ret < 0) {
gnutls_assert();
goto cleanup;
}
- ret = _gnutls_mpi_init_scan(&priv.params[DH_G], test_g, sizeof(test_g));
+ ret = _gnutls_mpi_init_scan(&priv.params[DH_G],
+ gnutls_ffdhe_3072_group_generator.data,
+ gnutls_ffdhe_3072_group_generator.size);
if (ret < 0) {
gnutls_assert();
goto cleanup;
diff --git a/lib/dh-primes.c b/lib/dh-primes.c
index a440b5b98..94b69e345 100644
--- a/lib/dh-primes.c
+++ b/lib/dh-primes.c
@@ -23,8 +23,6 @@
#include "gnutls_int.h"
#include <gnutls/gnutls.h>
-#if defined(ENABLE_DHE) || defined(ENABLE_ANON)
-
#include "dh.h"
static const unsigned char ffdhe_generator = 0x02;
@@ -1934,5 +1932,3 @@ _gnutls_dh_prime_match_fips_approved(const uint8_t *prime,
return 0;
}
-
-#endif
--
2.26.2

713
SOURCES/gnutls-3.6.14-fips-kdf-selftests.patch Normal file
View File

@ -0,0 +1,713 @@
From 93c0e3ba4d2cfee86b32f28f33303a2193c4133c Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Mon, 5 Oct 2020 16:12:46 +0200
Subject: [PATCH 1/4] fips: add self-tests for HKDF
FIPS140-2 IG D.8 mandates self-test on approved KDF algorithms. As
the guidance only requires running a single instance of each KDF
mechanism, this only exercises HKDF-Extract and HKDF-Expand operations
with HMAC-SHA-256 as the underlying MAC.
Although HKDF is non-approved, it would be sensible to do that as it
will be approved in FIPS140-3.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
devel/libgnutls-latest-x86_64.abi | 1 +
lib/crypto-selftests.c | 159 ++++++++++++++++++++++++++++++
lib/fips.c | 7 ++
lib/includes/gnutls/self-test.h | 1 +
lib/libgnutls.map | 1 +
5 files changed, 169 insertions(+)
diff --git a/lib/crypto-selftests.c b/lib/crypto-selftests.c
index 7a1c7729c..bd148b6af 100644
--- a/lib/crypto-selftests.c
+++ b/lib/crypto-selftests.c
@@ -2917,3 +2917,162 @@ int gnutls_digest_self_test(unsigned flags, gnutls_digest_algorithm_t digest)
return 0;
}
+
+struct hkdf_vectors_st {
+ const uint8_t *ikm;
+ unsigned int ikm_size;
+ const uint8_t *salt;
+ unsigned int salt_size;
+ const uint8_t *prk;
+ unsigned int prk_size;
+ const uint8_t *info;
+ unsigned int info_size;
+ const uint8_t *okm;
+ unsigned int okm_size;
+};
+
+const struct hkdf_vectors_st hkdf_sha256_vectors[] = {
+ /* RFC 5869: A.1. Test Case 1: Basic test case with SHA-256 */
+ {
+ STR(ikm, ikm_size,
+ "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
+ "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"),
+ STR(salt, salt_size,
+ "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c"),
+ STR(prk, prk_size,
+ "\x07\x77\x09\x36\x2c\x2e\x32\xdf\x0d\xdc\x3f\x0d\xc4\x7b"
+ "\xba\x63\x90\xb6\xc7\x3b\xb5\x0f\x9c\x31\x22\xec\x84\x4a"
+ "\xd7\xc2\xb3\xe5"),
+ STR(info, info_size,
+ "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9"),
+ STR(okm, okm_size,
+ "\x3c\xb2\x5f\x25\xfa\xac\xd5\x7a\x90\x43\x4f\x64\xd0\x36"
+ "\x2f\x2a\x2d\x2d\x0a\x90\xcf\x1a\x5a\x4c\x5d\xb0\x2d\x56"
+ "\xec\xc4\xc5\xbf\x34\x00\x72\x08\xd5\xb8\x87\x18\x58\x65"),
+ },
+ /* RFC 5869: A.2. Test Case 2: Test with SHA-256 and longer inputs/outputs */
+ {
+ STR(ikm, ikm_size,
+ "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d"
+ "\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b"
+ "\x1c\x1d\x1e\x1f\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29"
+ "\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37"
+ "\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40\x41\x42\x43\x44\x45"
+ "\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"),
+ STR(salt, salt_size,
+ "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d"
+ "\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b"
+ "\x7c\x7d\x7e\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89"
+ "\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97"
+ "\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5"
+ "\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf"),
+ STR(prk, prk_size,
+ "\x06\xa6\xb8\x8c\x58\x53\x36\x1a\x06\x10\x4c\x9c\xeb\x35"
+ "\xb4\x5c\xef\x76\x00\x14\x90\x46\x71\x01\x4a\x19\x3f\x40"
+ "\xc1\x5f\xc2\x44"),
+ STR(info, info_size,
+ "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd"
+ "\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb"
+ "\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9"
+ "\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
+ "\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5"
+ "\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"),
+ STR(okm, okm_size,
+ "\xb1\x1e\x39\x8d\xc8\x03\x27\xa1\xc8\xe7\xf7\x8c\x59\x6a"
+ "\x49\x34\x4f\x01\x2e\xda\x2d\x4e\xfa\xd8\xa0\x50\xcc\x4c"
+ "\x19\xaf\xa9\x7c\x59\x04\x5a\x99\xca\xc7\x82\x72\x71\xcb"
+ "\x41\xc6\x5e\x59\x0e\x09\xda\x32\x75\x60\x0c\x2f\x09\xb8"
+ "\x36\x77\x93\xa9\xac\xa3\xdb\x71\xcc\x30\xc5\x81\x79\xec"
+ "\x3e\x87\xc1\x4c\x01\xd5\xc1\xf3\x43\x4f\x1d\x87"),
+ },
+};
+
+static int test_hkdf(gnutls_mac_algorithm_t mac,
+ const struct hkdf_vectors_st *vectors,
+ size_t vectors_size, unsigned flags)
+{
+ unsigned int i;
+
+ for (i = 0; i < vectors_size; i++) {
+ gnutls_datum_t ikm, prk, salt, info;
+ uint8_t output[4096];
+ int ret;
+
+ ikm.data = (void *) vectors[i].ikm;
+ ikm.size = vectors[i].ikm_size;
+ salt.data = (void *) vectors[i].salt;
+ salt.size = vectors[i].salt_size;
+
+ ret = gnutls_hkdf_extract(mac, &ikm, &salt, output);
+ if (ret < 0) {
+ _gnutls_debug_log("error extracting HKDF: MAC-%s\n",
+ gnutls_mac_get_name(mac));
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+
+ if (memcmp(output, vectors[i].prk, vectors[i].prk_size) != 0) {
+ _gnutls_debug_log
+ ("HKDF extract: MAC-%s test vector failed!\n",
+ gnutls_mac_get_name(mac));
+
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+
+ prk.data = (void *) vectors[i].prk;
+ prk.size = vectors[i].prk_size;
+ info.data = (void *) vectors[i].info;
+ info.size = vectors[i].info_size;
+
+ ret = gnutls_hkdf_expand(mac, &prk, &info,
+ output, vectors[i].okm_size);
+ if (ret < 0) {
+ _gnutls_debug_log("error extracting HKDF: MAC-%s\n",
+ gnutls_mac_get_name(mac));
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+
+ if (memcmp(output, vectors[i].okm, vectors[i].okm_size) != 0) {
+ _gnutls_debug_log
+ ("HKDF expand: MAC-%s test vector failed!\n",
+ gnutls_mac_get_name(mac));
+
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+ }
+
+ _gnutls_debug_log
+ ("HKDF: MAC-%s self check succeeded\n",
+ gnutls_mac_get_name(mac));
+
+ return 0;
+}
+
+/*-
+ * gnutls_hkdf_self_test:
+ * @flags: GNUTLS_SELF_TEST_FLAG flags
+ * @mac: the message authentication algorithm to use
+ *
+ * This function will run self tests on HKDF with the provided mac.
+ *
+ * Returns: Zero or a negative error code on error.
+ *
+ * Since: 3.3.0-FIPS140
+ -*/
+int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac)
+{
+ int ret;
+
+ if (flags & GNUTLS_SELF_TEST_FLAG_ALL)
+ mac = GNUTLS_MAC_UNKNOWN;
+
+ switch (mac) {
+ case GNUTLS_MAC_UNKNOWN:
+ CASE(GNUTLS_MAC_SHA256, test_hkdf, hkdf_sha256_vectors);
+
+ break;
+ default:
+ return gnutls_assert_val(GNUTLS_E_NO_SELF_TEST);
+ }
+
+ return 0;
+}
diff --git a/lib/fips.c b/lib/fips.c
index f8b10f750..48891ed57 100644
--- a/lib/fips.c
+++ b/lib/fips.c
@@ -423,6 +423,13 @@ int _gnutls_fips_perform_self_checks2(void)
goto error;
}
+ /* HKDF */
+ ret = gnutls_hkdf_self_test(0, GNUTLS_MAC_SHA256);
+ if (ret < 0) {
+ gnutls_assert();
+ goto error;
+ }
+
if (_gnutls_rnd_ops.self_test == NULL) {
gnutls_assert();
goto error;
diff --git a/lib/includes/gnutls/self-test.h b/lib/includes/gnutls/self-test.h
index aacbe94ca..9b7be8159 100644
--- a/lib/includes/gnutls/self-test.h
+++ b/lib/includes/gnutls/self-test.h
@@ -34,5 +34,6 @@ int gnutls_cipher_self_test(unsigned flags, gnutls_cipher_algorithm_t cipher);
int gnutls_mac_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_digest_self_test(unsigned flags, gnutls_digest_algorithm_t digest);
int gnutls_pk_self_test(unsigned flags, gnutls_pk_algorithm_t pk);
+int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
#endif
diff --git a/lib/libgnutls.map b/lib/libgnutls.map
index 61276e534..386b66f83 100644
--- a/lib/libgnutls.map
+++ b/lib/libgnutls.map
@@ -1347,6 +1347,7 @@ GNUTLS_FIPS140_3_4 {
gnutls_pk_self_test;
gnutls_mac_self_test;
gnutls_digest_self_test;
+ gnutls_hkdf_self_test;
#for FIPS140-2 validation
drbg_aes_reseed;
drbg_aes_init;
--
2.26.2
From 31cc94275cd267f4e0db60999cc932fd76d43d5a Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Mon, 5 Oct 2020 16:59:50 +0200
Subject: [PATCH 2/4] fips: add self-tests for PBKDF2
FIPS140-2 IG D.8 mandates self-tests on approved KDF algorithms. As
the guidance only requires running a single instance of each KDF
mechanism, this only exercises PBKDF2 with HMAC-SHA-256 as the
underlying MAC algorithm.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
devel/libgnutls-latest-x86_64.abi | 1 +
lib/crypto-selftests.c | 107 ++++++++++++++++++++++++++++++
lib/fips.c | 7 ++
lib/includes/gnutls/self-test.h | 1 +
lib/libgnutls.map | 1 +
5 files changed, 117 insertions(+)
diff --git a/lib/crypto-selftests.c b/lib/crypto-selftests.c
index bd148b6af..c4b0bd207 100644
--- a/lib/crypto-selftests.c
+++ b/lib/crypto-selftests.c
@@ -3076,3 +3076,110 @@ int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac)
return 0;
}
+
+struct pbkdf2_vectors_st {
+ const uint8_t *key;
+ size_t key_size;
+ const uint8_t *salt;
+ size_t salt_size;
+ unsigned iter_count;
+ const uint8_t *output;
+ size_t output_size;
+};
+
+const struct pbkdf2_vectors_st pbkdf2_sha256_vectors[] = {
+ /* RFC 7914: 11. Test Vectors for PBKDF2 with HMAC-SHA-256 */
+ {
+ STR(key, key_size, "passwd"),
+ STR(salt, salt_size, "salt"),
+ .iter_count = 1,
+ STR(output, output_size,
+ "\x55\xac\x04\x6e\x56\xe3\x08\x9f\xec\x16\x91\xc2\x25\x44"
+ "\xb6\x05\xf9\x41\x85\x21\x6d\xde\x04\x65\xe6\x8b\x9d\x57"
+ "\xc2\x0d\xac\xbc\x49\xca\x9c\xcc\xf1\x79\xb6\x45\x99\x16"
+ "\x64\xb3\x9d\x77\xef\x31\x7c\x71\xb8\x45\xb1\xe3\x0b\xd5"
+ "\x09\x11\x20\x41\xd3\xa1\x97\x83"),
+ },
+ /* RFC 7914: 11. Test Vectors for PBKDF2 with HMAC-SHA-256 */
+ {
+ STR(key, key_size, "Password"),
+ STR(salt, salt_size, "NaCl"),
+ .iter_count = 80000,
+ STR(output, output_size,
+ "\x4d\xdc\xd8\xf6\x0b\x98\xbe\x21\x83\x0c\xee\x5e\xf2\x27"
+ "\x01\xf9\x64\x1a\x44\x18\xd0\x4c\x04\x14\xae\xff\x08\x87"
+ "\x6b\x34\xab\x56\xa1\xd4\x25\xa1\x22\x58\x33\x54\x9a\xdb"
+ "\x84\x1b\x51\xc9\xb3\x17\x6a\x27\x2b\xde\xbb\xa1\xd0\x78"
+ "\x47\x8f\x62\xb3\x97\xf3\x3c\x8d"),
+ },
+};
+
+static int test_pbkdf2(gnutls_mac_algorithm_t mac,
+ const struct pbkdf2_vectors_st *vectors,
+ size_t vectors_size, unsigned flags)
+{
+ unsigned int i;
+
+ for (i = 0; i < vectors_size; i++) {
+ gnutls_datum_t key, salt;
+ uint8_t output[4096];
+ int ret;
+
+ key.data = (void *) vectors[i].key;
+ key.size = vectors[i].key_size;
+ salt.data = (void *) vectors[i].salt;
+ salt.size = vectors[i].salt_size;
+
+ ret = gnutls_pbkdf2(mac, &key, &salt, vectors[i].iter_count,
+ output, vectors[i].output_size);
+ if (ret < 0) {
+ _gnutls_debug_log("error calculating PBKDF2: MAC-%s\n",
+ gnutls_mac_get_name(mac));
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+
+ if (memcmp(output, vectors[i].output, vectors[i].output_size) != 0) {
+ _gnutls_debug_log
+ ("PBKDF2: MAC-%s test vector failed!\n",
+ gnutls_mac_get_name(mac));
+
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+ }
+
+ _gnutls_debug_log
+ ("PBKDF2: MAC-%s self check succeeded\n",
+ gnutls_mac_get_name(mac));
+
+ return 0;
+}
+
+/*-
+ * gnutls_pbkdf2_self_test:
+ * @flags: GNUTLS_SELF_TEST_FLAG flags
+ * @mac: the message authentication algorithm to use
+ *
+ * This function will run self tests on PBKDF2 with the provided mac.
+ *
+ * Returns: Zero or a negative error code on error.
+ *
+ * Since: 3.3.0-FIPS140
+ -*/
+int gnutls_pbkdf2_self_test(unsigned flags, gnutls_mac_algorithm_t mac)
+{
+ int ret;
+
+ if (flags & GNUTLS_SELF_TEST_FLAG_ALL)
+ mac = GNUTLS_MAC_UNKNOWN;
+
+ switch (mac) {
+ case GNUTLS_MAC_UNKNOWN:
+ CASE(GNUTLS_MAC_SHA256, test_pbkdf2, pbkdf2_sha256_vectors);
+
+ break;
+ default:
+ return gnutls_assert_val(GNUTLS_E_NO_SELF_TEST);
+ }
+
+ return 0;
+}
diff --git a/lib/fips.c b/lib/fips.c
index 48891ed57..7cfab1049 100644
--- a/lib/fips.c
+++ b/lib/fips.c
@@ -430,6 +430,13 @@ int _gnutls_fips_perform_self_checks2(void)
goto error;
}
+ /* PBKDF2 */
+ ret = gnutls_pbkdf2_self_test(0, GNUTLS_MAC_SHA256);
+ if (ret < 0) {
+ gnutls_assert();
+ goto error;
+ }
+
if (_gnutls_rnd_ops.self_test == NULL) {
gnutls_assert();
goto error;
diff --git a/lib/includes/gnutls/self-test.h b/lib/includes/gnutls/self-test.h
index 9b7be8159..958c0da8f 100644
--- a/lib/includes/gnutls/self-test.h
+++ b/lib/includes/gnutls/self-test.h
@@ -35,5 +35,6 @@ int gnutls_mac_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_digest_self_test(unsigned flags, gnutls_digest_algorithm_t digest);
int gnutls_pk_self_test(unsigned flags, gnutls_pk_algorithm_t pk);
int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
+int gnutls_pbkdf2_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
#endif
diff --git a/lib/libgnutls.map b/lib/libgnutls.map
index 386b66f83..f5537a386 100644
--- a/lib/libgnutls.map
+++ b/lib/libgnutls.map
@@ -1348,6 +1348,7 @@ GNUTLS_FIPS140_3_4 {
gnutls_mac_self_test;
gnutls_digest_self_test;
gnutls_hkdf_self_test;
+ gnutls_pbkdf2_self_test;
#for FIPS140-2 validation
drbg_aes_reseed;
drbg_aes_init;
--
2.26.2
From d1a3235e8c829855969d00364d8b5456fce2c78c Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Mon, 5 Oct 2020 17:44:30 +0200
Subject: [PATCH 3/4] fips: add self-tests for TLS-PRF
FIPS140-2 IG D.8 mandates self-tests on approved KDF algorithms. As
the guidance only requires to run a single instance of each KDF
mechanism, this only exercises TLS1.2 PRF with HMAC-SHA-256 as the
underlying MAC algorithm.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
devel/libgnutls-latest-x86_64.abi | 1 +
lib/crypto-selftests.c | 196 ++++++++++++++++++++++++++++++
lib/fips.c | 7 ++
lib/includes/gnutls/self-test.h | 1 +
lib/libgnutls.map | 1 +
5 files changed, 206 insertions(+)
diff --git a/lib/crypto-selftests.c b/lib/crypto-selftests.c
index c4b0bd207..b740936d6 100644
--- a/lib/crypto-selftests.c
+++ b/lib/crypto-selftests.c
@@ -3183,3 +3183,199 @@ int gnutls_pbkdf2_self_test(unsigned flags, gnutls_mac_algorithm_t mac)
return 0;
}
+
+struct tlsprf_vectors_st {
+ const uint8_t *key;
+ size_t key_size;
+ const uint8_t *label;
+ size_t label_size;
+ const uint8_t *seed;
+ size_t seed_size;
+ const uint8_t *output;
+ size_t output_size;
+};
+
+const struct tlsprf_vectors_st tls10prf_vectors[] = {
+ /* tests/tls10-prf.c: test1 */
+ {
+ STR(key, key_size,
+ "\x26\x3b\xdb\xbb\x6f\x6d\x4c\x66\x4e\x05\x8d\x0a\xa9\xd3"
+ "\x21\xbe"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\xb9\x20\x57\x3b\x19\x96\x01\x02\x4f\x04\xd6\xdc\x61\x96"
+ "\x6e\x65"),
+ STR(output, output_size,
+ "\x66\x17\x99\x37\x65\xfa\x6c\xa7\x03\xd1\x9e\xc7\x0d\xd5"
+ "\xdd\x16\x0f\xfc\xc0\x77\x25\xfa\xfb\x71\x4a\x9f\x81\x5a"
+ "\x2a\x30\xbf\xb7\xe3\xbb\xfb\x7e\xee\x57\x4b\x3b\x61\x3e"
+ "\xb7\xfe\x80\xee\xc9\x69\x1d\x8c\x1b\x0e\x2d\x9b\x3c\x8b"
+ "\x4b\x02\xb6\xb6\xd6\xdb\x88\xe2\x09\x46\x23\xef\x62\x40"
+ "\x60\x7e\xda\x7a\xbe\x3c\x84\x6e\x82\xa3"),
+ },
+};
+
+const struct tlsprf_vectors_st tls12prf_sha256_vectors[] = {
+ /* tests/tls12-prf.c: sha256_test1 */
+ {
+ STR(key, key_size,
+ "\x04\x50\xb0\xea\x9e\xcd\x36\x02\xee\x0d\x76\xc5\xc3\xc8"
+ "\x6f\x4a"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\x20\x7a\xcc\x02\x54\xb8\x67\xf5\xb9\x25\xb4\x5a\x33\x60"
+ "\x1d\x8b"),
+ STR(output, output_size,
+ "\xae\x67\x9e\x0e\x71\x4f\x59\x75\x76\x37\x68\xb1\x66\x97"
+ "\x9e\x1d"),
+ },
+ /* tests/tls12-prf.c: sha256_test2 */
+ {
+ STR(key, key_size,
+ "\x34\x20\x4a\x9d\xf0\xbe\x6e\xb4\xe9\x25\xa8\x02\x7c\xf6"
+ "\xc6\x02"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\x98\xb2\xc4\x0b\xcd\x66\x4c\x83\xbb\x92\x0c\x18\x20\x1a"
+ "\x63\x95"),
+ STR(output, output_size,
+ "\xaf\xa9\x31\x24\x53\xc2\x2f\xa8\x3d\x2b\x51\x1b\x37\x2d"
+ "\x73\xa4\x02\xa2\xa6\x28\x73\x23\x9a\x51\xfa\xde\x45\x08"
+ "\x2f\xaf\x3f\xd2\xbb\x7f\xfb\x3e\x9b\xf3\x6e\x28\xb3\x14"
+ "\x1a\xab\xa4\x84\x00\x53\x32\xa9\xf9\xe3\x88\xa4\xd3\x29"
+ "\xf1\x58\x7a\x4b\x31\x7d\xa0\x77\x08\xea\x1b\xa9\x5a\x53"
+ "\xf8\x78\x67\x24\xbd\x83\xce\x4b\x03\xaf"),
+ },
+ /* tests/tls12-prf.c: sha256_test3 */
+ {
+ STR(key, key_size,
+ "\xa3\x69\x1a\xa1\xf6\x81\x4b\x80\x59\x2b\xf1\xcf\x2a\xcf"
+ "\x16\x97"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\x55\x23\xd4\x1e\x32\x0e\x69\x4d\x0c\x1f\xf5\x73\x4d\x83"
+ "\x0b\x93\x3e\x46\x92\x70\x71\xc9\x26\x21"),
+ STR(output, output_size,
+ "\x6a\xd0\x98\x4f\xa0\x6f\x78\xfe\x16\x1b\xd4\x6d\x7c\x26"
+ "\x1d\xe4\x33\x40\xd7\x28\xdd\xdc\x3d\x0f\xf0\xdd\x7e\x0d"),
+ },
+ /* tests/tls12-prf.c: sha256_test4 */
+ {
+ STR(key, key_size,
+ "\x21\x0e\xc9\x37\x06\x97\x07\xe5\x46\x5b\xc4\x6b\xf7\x79"
+ "\xe1\x04\x10\x8b\x18\xfd\xb7\x93\xbe\x7b\x21\x8d\xbf\x14"
+ "\x5c\x86\x41\xf3"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\x1e\x35\x1a\x0b\xaf\x35\xc7\x99\x45\x92\x43\x94\xb8\x81"
+ "\xcf\xe3\x1d\xae\x8f\x1c\x1e\xd5\x4d\x3b"),
+ STR(output, output_size,
+ "\x76\x53\xfa\x80\x9c\xde\x3b\x55\x3c\x4a\x17\xe2\xcd\xbc"
+ "\xc9\x18\xf3\x65\x27\xf2\x22\x19\xa7\xd7\xf9\x5d\x97\x24"
+ "\x3f\xf2\xd5\xde\xe8\x26\x5e\xf0\xaf\x03"),
+ },
+};
+
+const struct tlsprf_vectors_st tls12prf_sha384_vectors[] = {
+ /* tests/tls12-prf.c: sha384_test1
+ * https://www.ietf.org/mail-archive/web/tls/current/msg03416.html
+ */
+ {
+ STR(key, key_size,
+ "\xb8\x0b\x73\x3d\x6c\xee\xfc\xdc\x71\x56\x6e\xa4\x8e\x55"
+ "\x67\xdf"),
+ STR(label, label_size,
+ "test label"),
+ STR(seed, seed_size,
+ "\xcd\x66\x5c\xf6\xa8\x44\x7d\xd6\xff\x8b\x27\x55\x5e\xdb"
+ "\x74\x65"),
+ STR(output, output_size,
+ "\x7b\x0c\x18\xe9\xce\xd4\x10\xed\x18\x04\xf2\xcf\xa3\x4a"
+ "\x33\x6a\x1c\x14\xdf\xfb\x49\x00\xbb\x5f\xd7\x94\x21\x07"
+ "\xe8\x1c\x83\xcd\xe9\xca\x0f\xaa\x60\xbe\x9f\xe3\x4f\x82"
+ "\xb1\x23\x3c\x91\x46\xa0\xe5\x34\xcb\x40\x0f\xed\x27\x00"
+ "\x88\x4f\x9d\xc2\x36\xf8\x0e\xdd\x8b\xfa\x96\x11\x44\xc9"
+ "\xe8\xd7\x92\xec\xa7\x22\xa7\xb3\x2f\xc3\xd4\x16\xd4\x73"
+ "\xeb\xc2\xc5\xfd\x4a\xbf\xda\xd0\x5d\x91\x84\x25\x9b\x5b"
+ "\xf8\xcd\x4d\x90\xfa\x0d\x31\xe2\xde\xc4\x79\xe4\xf1\xa2"
+ "\x60\x66\xf2\xee\xa9\xa6\x92\x36\xa3\xe5\x26\x55\xc9\xe9"
+ "\xae\xe6\x91\xc8\xf3\xa2\x68\x54\x30\x8d\x5e\xaa\x3b\xe8"
+ "\x5e\x09\x90\x70\x3d\x73\xe5\x6f"),
+ },
+};
+
+static int test_tlsprf(gnutls_mac_algorithm_t mac,
+ const struct tlsprf_vectors_st *vectors,
+ size_t vectors_size, unsigned flags)
+{
+ unsigned int i;
+
+ for (i = 0; i < vectors_size; i++) {
+ char output[4096];
+ int ret;
+
+ ret = _gnutls_prf_raw(mac,
+ vectors[i].key_size, vectors[i].key,
+ vectors[i].label_size, (const char *)vectors[i].label,
+ vectors[i].seed_size, vectors[i].seed,
+ vectors[i].output_size, output);
+ if (ret < 0) {
+ _gnutls_debug_log("error calculating TLS-PRF: MAC-%s\n",
+ gnutls_mac_get_name(mac));
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+
+ if (memcmp(output, vectors[i].output, vectors[i].output_size) != 0) {
+ _gnutls_debug_log
+ ("TLS-PRF: MAC-%s test vector failed!\n",
+ gnutls_mac_get_name(mac));
+
+ return gnutls_assert_val(GNUTLS_E_SELF_TEST_ERROR);
+ }
+ }
+
+ _gnutls_debug_log
+ ("TLS-PRF: MAC-%s self check succeeded\n",
+ gnutls_mac_get_name(mac));
+
+ return 0;
+}
+
+/*-
+ * gnutls_tlsprf_self_test:
+ * @flags: GNUTLS_SELF_TEST_FLAG flags
+ * @mac: the message authentication algorithm to use
+ *
+ * This function will run self tests on TLS-PRF with the provided mac.
+ *
+ * Returns: Zero or a negative error code on error.
+ *
+ * Since: 3.3.0-FIPS140
+ -*/
+int gnutls_tlsprf_self_test(unsigned flags, gnutls_mac_algorithm_t mac)
+{
+ int ret;
+
+ if (flags & GNUTLS_SELF_TEST_FLAG_ALL)
+ mac = GNUTLS_MAC_UNKNOWN;
+
+ switch (mac) {
+ case GNUTLS_MAC_UNKNOWN:
+ NON_FIPS_CASE(GNUTLS_MAC_MD5_SHA1, test_tlsprf, tls10prf_vectors);
+ FALLTHROUGH;
+ CASE(GNUTLS_MAC_SHA256, test_tlsprf, tls12prf_sha256_vectors);
+ FALLTHROUGH;
+ CASE(GNUTLS_MAC_SHA384, test_tlsprf, tls12prf_sha384_vectors);
+
+ break;
+ default:
+ return gnutls_assert_val(GNUTLS_E_NO_SELF_TEST);
+ }
+
+ return 0;
+}
diff --git a/lib/fips.c b/lib/fips.c
index 7cfab1049..30d396b2c 100644
--- a/lib/fips.c
+++ b/lib/fips.c
@@ -437,6 +437,13 @@ int _gnutls_fips_perform_self_checks2(void)
goto error;
}
+ /* TLS-PRF */
+ ret = gnutls_tlsprf_self_test(0, GNUTLS_MAC_SHA256);
+ if (ret < 0) {
+ gnutls_assert();
+ goto error;
+ }
+
if (_gnutls_rnd_ops.self_test == NULL) {
gnutls_assert();
goto error;
diff --git a/lib/includes/gnutls/self-test.h b/lib/includes/gnutls/self-test.h
index 958c0da8f..88b5a8dbf 100644
--- a/lib/includes/gnutls/self-test.h
+++ b/lib/includes/gnutls/self-test.h
@@ -36,5 +36,6 @@ int gnutls_digest_self_test(unsigned flags, gnutls_digest_algorithm_t digest);
int gnutls_pk_self_test(unsigned flags, gnutls_pk_algorithm_t pk);
int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_pbkdf2_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
+int gnutls_tlsprf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
#endif
diff --git a/lib/libgnutls.map b/lib/libgnutls.map
index f5537a386..643d400a1 100644
--- a/lib/libgnutls.map
+++ b/lib/libgnutls.map
@@ -1349,6 +1349,7 @@ GNUTLS_FIPS140_3_4 {
gnutls_digest_self_test;
gnutls_hkdf_self_test;
gnutls_pbkdf2_self_test;
+ gnutls_tlsprf_self_test;
#for FIPS140-2 validation
drbg_aes_reseed;
drbg_aes_init;
--
2.26.2
From af3df0102fc377591a6de3112b034d4a492fc92c Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Mon, 5 Oct 2020 17:59:46 +0200
Subject: [PATCH 4/4] fips: run CMAC self-tests
FIPS140-2 IG D.8 mandates self-tests on CMAC.
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/fips.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/fips.c b/lib/fips.c
index 30d396b2c..51567953d 100644
--- a/lib/fips.c
+++ b/lib/fips.c
@@ -398,6 +398,12 @@ int _gnutls_fips_perform_self_checks2(void)
goto error;
}
+ ret = gnutls_mac_self_test(0, GNUTLS_MAC_AES_CMAC_256);
+ if (ret < 0) {
+ gnutls_assert();
+ goto error;
+ }
+
/* PK */
ret = gnutls_pk_self_test(0, GNUTLS_PK_RSA);
if (ret < 0) {
--
2.26.2

152
SOURCES/gnutls-3.6.14-fix-iovec-memory-leak.patch Normal file
View File

@ -0,0 +1,152 @@
From 6fbff7fc8aabeee2254405f254220bbe8c05c67d Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Fri, 5 Jun 2020 16:26:33 +0200
Subject: [PATCH] crypto-api: always allocate memory when serializing iovec_t
The AEAD iov interface falls back to serializing the input buffers if
the low-level cipher doesn't support scatter/gather encryption.
However, there was a bug in the functions used for the serialization,
which causes memory leaks under a certain condition (i.e. the number
of input buffers is 1).
This patch makes the logic of the functions simpler, by removing a
micro-optimization that tries to minimize the number of calls to
malloc/free.
The original problem was reported by Marius Steffen in:
https://bugzilla.samba.org/show_bug.cgi?id=14399
and the cause was investigated by Alexander Haase in:
https://gitlab.com/gnutls/gnutls/-/merge_requests/1277
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/crypto-api.c | 36 +++++++++++-------------------------
tests/aead-cipher-vec.c | 33 ++++++++++++++++++---------------
2 files changed, 29 insertions(+), 40 deletions(-)
diff --git a/lib/crypto-api.c b/lib/crypto-api.c
index 45be64ed1..8524f5ed4 100644
--- a/lib/crypto-api.c
+++ b/lib/crypto-api.c
@@ -891,32 +891,23 @@ gnutls_aead_cipher_encrypt(gnutls_aead_cipher_hd_t handle,
struct iov_store_st {
void *data;
size_t size;
- unsigned allocated;
};
static void iov_store_free(struct iov_store_st *s)
{
- if (s->allocated) {
- gnutls_free(s->data);
- s->allocated = 0;
- }
+ gnutls_free(s->data);
}
static int iov_store_grow(struct iov_store_st *s, size_t length)
{
- if (s->allocated || s->data == NULL) {
- s->size += length;
- s->data = gnutls_realloc(s->data, s->size);
- if (s->data == NULL)
- return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
- s->allocated = 1;
- } else {
- void *data = s->data;
- size_t size = s->size + length;
- s->data = gnutls_malloc(size);
- memcpy(s->data, data, s->size);
- s->size += length;
- }
+ void *data;
+
+ s->size += length;
+ data = gnutls_realloc(s->data, s->size);
+ if (data == NULL)
+ return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
+
+ s->data = data;
return 0;
}
@@ -926,11 +917,6 @@ copy_from_iov(struct iov_store_st *dst, const giovec_t *iov, int iovcnt)
memset(dst, 0, sizeof(*dst));
if (iovcnt == 0) {
return 0;
- } else if (iovcnt == 1) {
- dst->data = iov[0].iov_base;
- dst->size = iov[0].iov_len;
- /* implies: dst->allocated = 0; */
- return 0;
} else {
int i;
uint8_t *p;
@@ -944,11 +930,11 @@ copy_from_iov(struct iov_store_st *dst, const giovec_t *iov, int iovcnt)
p = dst->data;
for (i=0;i<iovcnt;i++) {
- memcpy(p, iov[i].iov_base, iov[i].iov_len);
+ if (iov[i].iov_len > 0)
+ memcpy(p, iov[i].iov_base, iov[i].iov_len);
p += iov[i].iov_len;
}
- dst->allocated = 1;
return 0;
}
}
diff --git a/tests/aead-cipher-vec.c b/tests/aead-cipher-vec.c
index fba9010d9..6a30a35f7 100644
--- a/tests/aead-cipher-vec.c
+++ b/tests/aead-cipher-vec.c
@@ -49,6 +49,7 @@ static void start(const char *name, int algo)
giovec_t auth_iov[2];
uint8_t tag[64];
size_t tag_size = 0;
+ size_t i;
key.data = key16;
key.size = gnutls_cipher_get_key_size(algo);
@@ -82,21 +83,23 @@ static void start(const char *name, int algo)
if (ret < 0)
fail("gnutls_cipher_init: %s\n", gnutls_strerror(ret));
- ret = gnutls_aead_cipher_encryptv2(ch,
- iv.data, iv.size,
- auth_iov, 2,
- iov, 3,
- tag, &tag_size);
- if (ret < 0)
- fail("could not encrypt data: %s\n", gnutls_strerror(ret));
-
- ret = gnutls_aead_cipher_decryptv2(ch,
- iv.data, iv.size,
- auth_iov, 2,
- iov, 3,
- tag, tag_size);
- if (ret < 0)
- fail("could not decrypt data: %s\n", gnutls_strerror(ret));
+ for (i = 0; i < 2; i++) {
+ ret = gnutls_aead_cipher_encryptv2(ch,
+ iv.data, iv.size,
+ auth_iov, 2,
+ iov, i + 1,
+ tag, &tag_size);
+ if (ret < 0)
+ fail("could not encrypt data: %s\n", gnutls_strerror(ret));
+
+ ret = gnutls_aead_cipher_decryptv2(ch,
+ iv.data, iv.size,
+ auth_iov, 2,
+ iov, i + 1,
+ tag, tag_size);
+ if (ret < 0)
+ fail("could not decrypt data: %s\n", gnutls_strerror(ret));
+ }
gnutls_aead_cipher_deinit(ch);
}
--
2.25.4

131
SOURCES/gnutls-3.6.14-memcmp.patch Normal file
View File

@ -0,0 +1,131 @@
From 9acc0f68320db4c7c6dadacb974e77c7fbca72a7 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Sun, 21 Jun 2020 16:03:54 +0200
Subject: [PATCH] safe_memcmp: remove in favor of gnutls_memcmp
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
lib/accelerated/x86/aes-xts-x86-aesni.c | 2 +-
lib/ext/pre_shared_key.c | 2 +-
lib/mem.h | 9 ---------
lib/nettle/cipher.c | 8 ++++----
lib/tls13/finished.c | 2 +-
lib/x509/x509.c | 3 ++-
6 files changed, 9 insertions(+), 17 deletions(-)
diff --git a/lib/accelerated/x86/aes-xts-x86-aesni.c b/lib/accelerated/x86/aes-xts-x86-aesni.c
index 3371d0812..b904cbf00 100644
--- a/lib/accelerated/x86/aes-xts-x86-aesni.c
+++ b/lib/accelerated/x86/aes-xts-x86-aesni.c
@@ -72,7 +72,7 @@ x86_aes_xts_cipher_setkey(void *_ctx, const void *userkey, size_t keysize)
/* Check key block according to FIPS-140-2 IG A.9 */
if (_gnutls_fips_mode_enabled()){
- if (safe_memcmp(key, key + (keysize / 2), keysize / 2) == 0) {
+ if (gnutls_memcmp(key, key + (keysize / 2), keysize / 2) == 0) {
_gnutls_switch_lib_state(LIB_STATE_ERROR);
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
}
diff --git a/lib/ext/pre_shared_key.c b/lib/ext/pre_shared_key.c
index fef67d341..240be2162 100644
--- a/lib/ext/pre_shared_key.c
+++ b/lib/ext/pre_shared_key.c
@@ -650,7 +650,7 @@ static int server_recv_params(gnutls_session_t session,
}
if (_gnutls_mac_get_algo_len(prf) != binder_recvd.size ||
- safe_memcmp(binder_value, binder_recvd.data, binder_recvd.size)) {
+ gnutls_memcmp(binder_value, binder_recvd.data, binder_recvd.size)) {
gnutls_assert();
ret = GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER;
goto fail;
diff --git a/lib/mem.h b/lib/mem.h
index dc838a2b4..d3eea97a4 100644
--- a/lib/mem.h
+++ b/lib/mem.h
@@ -35,15 +35,6 @@ char *_gnutls_strdup(const char *);
unsigned _gnutls_mem_is_zero(const uint8_t *ptr, unsigned size);
-/* To avoid undefined behavior when s1 or s2 are null and n = 0 */
-inline static
-int safe_memcmp(const void *s1, const void *s2, size_t n)
-{
- if (n == 0)
- return 0;
- return memcmp(s1, s2, n);
-}
-
#define zrelease_mpi_key(mpi) if (*mpi!=NULL) { \
_gnutls_mpi_clear(*mpi); \
_gnutls_mpi_release(mpi); \
diff --git a/lib/nettle/cipher.c b/lib/nettle/cipher.c
index b0a52deb5..ec0c1ab04 100644
--- a/lib/nettle/cipher.c
+++ b/lib/nettle/cipher.c
@@ -482,7 +482,7 @@ _xts_aes128_set_encrypt_key(struct xts_aes128_key *xts_key,
const uint8_t *key)
{
if (_gnutls_fips_mode_enabled() &&
- safe_memcmp(key, key + AES128_KEY_SIZE, AES128_KEY_SIZE) == 0)
+ gnutls_memcmp(key, key + AES128_KEY_SIZE, AES128_KEY_SIZE) == 0)
_gnutls_switch_lib_state(LIB_STATE_ERROR);
xts_aes128_set_encrypt_key(xts_key, key);
@@ -493,7 +493,7 @@ _xts_aes128_set_decrypt_key(struct xts_aes128_key *xts_key,
const uint8_t *key)
{
if (_gnutls_fips_mode_enabled() &&
- safe_memcmp(key, key + AES128_KEY_SIZE, AES128_KEY_SIZE) == 0)
+ gnutls_memcmp(key, key + AES128_KEY_SIZE, AES128_KEY_SIZE) == 0)
_gnutls_switch_lib_state(LIB_STATE_ERROR);
xts_aes128_set_decrypt_key(xts_key, key);
@@ -504,7 +504,7 @@ _xts_aes256_set_encrypt_key(struct xts_aes256_key *xts_key,
const uint8_t *key)
{
if (_gnutls_fips_mode_enabled() &&
- safe_memcmp(key, key + AES256_KEY_SIZE, AES256_KEY_SIZE) == 0)
+ gnutls_memcmp(key, key + AES256_KEY_SIZE, AES256_KEY_SIZE) == 0)
_gnutls_switch_lib_state(LIB_STATE_ERROR);
xts_aes256_set_encrypt_key(xts_key, key);
@@ -515,7 +515,7 @@ _xts_aes256_set_decrypt_key(struct xts_aes256_key *xts_key,
const uint8_t *key)
{
if (_gnutls_fips_mode_enabled() &&
- safe_memcmp(key, key + AES256_KEY_SIZE, AES256_KEY_SIZE) == 0)
+ gnutls_memcmp(key, key + AES256_KEY_SIZE, AES256_KEY_SIZE) == 0)
_gnutls_switch_lib_state(LIB_STATE_ERROR);
xts_aes256_set_decrypt_key(xts_key, key);
diff --git a/lib/tls13/finished.c b/lib/tls13/finished.c
index 68eab993e..ec646e673 100644
--- a/lib/tls13/finished.c
+++ b/lib/tls13/finished.c
@@ -112,7 +112,7 @@ int _gnutls13_recv_finished(gnutls_session_t session)
#if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION)
# warning This is unsafe for production builds
#else
- if (safe_memcmp(verifier, buf.data, buf.length) != 0) {
+ if (gnutls_memcmp(verifier, buf.data, buf.length) != 0) {
gnutls_assert();
ret = GNUTLS_E_ERROR_IN_FINISHED_PACKET;
goto cleanup;
diff --git a/lib/x509/x509.c b/lib/x509/x509.c
index 2091f3ae6..2b68fe440 100644
--- a/lib/x509/x509.c
+++ b/lib/x509/x509.c
@@ -360,7 +360,8 @@ static int compare_sig_algorithm(gnutls_x509_crt_t cert)
}
if (empty1 != empty2 ||
- sp1.size != sp2.size || safe_memcmp(sp1.data, sp2.data, sp1.size) != 0) {
+ sp1.size != sp2.size ||
+ (sp1.size > 0 && memcmp(sp1.data, sp2.data, sp1.size) != 0)) {
gnutls_assert();
ret = GNUTLS_E_CERTIFICATE_ERROR;
goto cleanup;
--
2.26.2

118
SOURCES/gnutls-3.6.14-no-renegotiation.patch Normal file
View File

@ -0,0 +1,118 @@
From 29ee67c205855e848a0a26e6d0e4f65b6b943e0a Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@gnu.org>
Date: Sat, 22 Aug 2020 17:19:39 +0200
Subject: [PATCH] handshake: reject no_renegotiation alert if handshake is
incomplete
If the initial handshake is incomplete and the server sends a
no_renegotiation alert, the client should treat it as a fatal error
even if its level is warning. Otherwise the same handshake
state (e.g., DHE parameters) are reused in the next gnutls_handshake
call, if it is called in the loop idiom:
do {
ret = gnutls_handshake(session);
} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
Signed-off-by: Daiki Ueno <ueno@gnu.org>
---
...a04b3d3f7dcc0ab4571cf0df3b67ab7e1005e9e7a8 | Bin 0 -> 671 bytes
...1da801fb3c6d1f7f846f227721e221adea08aa319c | Bin 0 -> 729 bytes
lib/gnutls_int.h | 1 +
lib/handshake.c | 48 +++++++++++++-----
4 files changed, 36 insertions(+), 13 deletions(-)
create mode 100644 fuzz/gnutls_client_fuzzer.in/00ea40761ce11e769f1817a04b3d3f7dcc0ab4571cf0df3b67ab7e1005e9e7a8
create mode 100644 fuzz/gnutls_psk_client_fuzzer.in/b16434290b77e13d7a983d1da801fb3c6d1f7f846f227721e221adea08aa319c
diff --git a/lib/gnutls_int.h b/lib/gnutls_int.h
index bb6c19713..31cec5c0c 100644
--- a/lib/gnutls_int.h
+++ b/lib/gnutls_int.h
@@ -1370,6 +1370,7 @@ typedef struct {
#define HSK_RECORD_SIZE_LIMIT_RECEIVED (1<<26) /* server: record_size_limit extension was seen but not accepted yet */
#define HSK_OCSP_REQUESTED (1<<27) /* server: client requested OCSP stapling */
#define HSK_CLIENT_OCSP_REQUESTED (1<<28) /* client: server requested OCSP stapling */
+#define HSK_SERVER_HELLO_RECEIVED (1<<29) /* client: Server Hello message has been received */
/* The hsk_flags are for use within the ongoing handshake;
* they are reset to zero prior to handshake start by gnutls_handshake. */
diff --git a/lib/handshake.c b/lib/handshake.c
index b40f84b3d..ce2d160e2 100644
--- a/lib/handshake.c
+++ b/lib/handshake.c
@@ -2061,6 +2061,8 @@ read_server_hello(gnutls_session_t session,
if (ret < 0)
return gnutls_assert_val(ret);
+ session->internals.hsk_flags |= HSK_SERVER_HELLO_RECEIVED;
+
return 0;
}
@@ -2585,16 +2587,42 @@ int gnutls_rehandshake(gnutls_session_t session)
return 0;
}
+/* This function checks whether the error code should be treated fatal
+ * or not, and also does the necessary state transition. In
+ * particular, in the case of a rehandshake abort it resets the
+ * handshake's internal state.
+ */
inline static int
_gnutls_abort_handshake(gnutls_session_t session, int ret)
{
- if (((ret == GNUTLS_E_WARNING_ALERT_RECEIVED) &&
- (gnutls_alert_get(session) == GNUTLS_A_NO_RENEGOTIATION))
- || ret == GNUTLS_E_GOT_APPLICATION_DATA)
- return 0;
+ switch (ret) {
+ case GNUTLS_E_WARNING_ALERT_RECEIVED:
+ if (gnutls_alert_get(session) == GNUTLS_A_NO_RENEGOTIATION) {
+ /* The server always toleretes a "no_renegotiation" alert. */
+ if (session->security_parameters.entity == GNUTLS_SERVER) {
+ STATE = STATE0;
+ return ret;
+ }
+
+ /* The client should tolerete a "no_renegotiation" alert only if:
+ * - the initial handshake has completed, or
+ * - a Server Hello is not yet received
+ */
+ if (session->internals.initial_negotiation_completed ||
+ !(session->internals.hsk_flags & HSK_SERVER_HELLO_RECEIVED)) {
+ STATE = STATE0;
+ return ret;
+ }
- /* this doesn't matter */
- return GNUTLS_E_INTERNAL_ERROR;
+ return gnutls_assert_val(GNUTLS_E_UNEXPECTED_PACKET);
+ }
+ return ret;
+ case GNUTLS_E_GOT_APPLICATION_DATA:
+ STATE = STATE0;
+ return ret;
+ default:
+ return ret;
+ }
}
@@ -2756,13 +2784,7 @@ int gnutls_handshake(gnutls_session_t session)
}
if (ret < 0) {
- /* In the case of a rehandshake abort
- * we should reset the handshake's internal state.
- */
- if (_gnutls_abort_handshake(session, ret) == 0)
- STATE = STATE0;
-
- return ret;
+ return _gnutls_abort_handshake(session, ret);
}
/* clear handshake buffer */
--
2.26.2

23
SPECS/gnutls.spec
View File

@ -1,10 +1,17 @@
Version: 3.6.14
Release: 3%{?dist}
Release: 7%{?dist}
Patch1: gnutls-3.2.7-rpath.patch
Patch2: gnutls-3.6.4-no-now-guile.patch
Patch3: gnutls-3.6.13-enable-intel-cet.patch
Patch4: gnutls-3.6.14-autogen-int.patch
Patch5: gnutls-3.6.14-fips-mode-check.patch
Patch6: gnutls-3.6.14-fips-dh-primes.patch
Patch7: gnutls-3.6.14-memcmp.patch
Patch8: gnutls-3.6.14-fips-dh-check.patch
Patch9: gnutls-3.6.14-fix-iovec-memory-leak.patch
Patch10: gnutls-3.6.14-fips-dh-selftests.patch
Patch11: gnutls-3.6.14-fips-kdf-selftests.patch
Patch12: gnutls-3.6.14-no-renegotiation.patch
%bcond_without dane
%if 0%{?rhel}
%bcond_with guile
@ -288,6 +295,20 @@ fi
%endif
%changelog
* Tue Nov 3 2020 Daiki Ueno <dueno@redhat.com> - 3.6.14-7
- Increase DH key bits to >= 2048 in self-tests (#1879506)
- Implement self-tests for KDF and CMAC (#1890870)
- Fix CVE-2020-24659: heap buffer-overflow when "no_renegotiation" alert is received (#1873959)
* Mon Aug 24 2020 Daiki Ueno <dueno@redhat.com> - 3.6.14-6
- Fix memory leak when serializing iovec_t (#1844112)
* Sat Jul 18 2020 Daiki Ueno <dueno@redhat.com> - 3.6.14-5
- Perform validation checks on (EC)DH public keys and share secrets (#1855803)
* Mon Jun 29 2020 Daiki Ueno <dueno@redhat.com> - 3.6.14-4
- Tighten FIPS DH primes check according to SP800-56A (rev 3) (#1849079)
* Fri Jun 5 2020 Daiki Ueno <dueno@redhat.com> - 3.6.14-3
- Update gnutls-3.6.14-fips-mode-check.patch