Commit graph

684 commits

Author SHA1 Message Date
Jouni Malinen
94e0f39d97 wolfSSL: Use wolfSSL_export_keying_material() when available
This is needed to work with TLS 1.3 key derivation. It looks the needed
functionality was added in wolfSSL 4.7.0.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-18 16:27:47 +03:00
Jouni Malinen
c31fc7a64c wolfSSL: Fix crypto_dh_init() and dh5_init()
priv_sz and pub_sz needs to be initialized to the buffer size before the
wc_DhGenerateKeyPair() call. The previous version happened to work in
some cases where a separate handled prime length was used, but not for
the generic case.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-18 11:03:55 +03:00
Jouni Malinen
d7b8c6eef2 wolfSSL: Fix crypto_ecdh_* with ECC_TIMING_RESISTANT
It looks like crypto_ecdh_set_peerkey() had started failing at some
point with a wolfSSL update due to ECC_TIMING_RESISTANT from
--enable-harden requiring RNG to be set.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-18 00:54:37 +03:00
Juliusz Sosinowicz
166acab4e6 wolfSSL: TLS session caching
Add support for EAP server to cache TLS sessions (see hostapd
configuration parameter tls_session_lifetime).

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:55 +03:00
Juliusz Sosinowicz
12dee16d71 wolfSSL: Add a debug logging callback
Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:55 +03:00
Juliusz Sosinowicz
a5d190650b wolfSSL: Implement tls_get_tls_unique()
This is needed for EAP-TEAP. This needs wolfSSL 5.0.0 or newer.

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:50 +03:00
Juliusz Sosinowicz
a419fef367 wolfSSL: Implement tls_connection_get_cipher_suite()
This is needed for EAP-TEAP.

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:41 +03:00
Juliusz Sosinowicz
364876b7da wolfSSL: Implement tls_connection_get_peer_subject()
This is needed for EAP-TEAP server implementation.

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:36 +03:00
Juliusz Sosinowicz
d9c7164001 wolfSSL: Implement tls_connection_get_own_cert_used()
This is needed for EAP-TEAP client implementation. This needs wolfSSL
5.0.0 or newer.

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 22:02:28 +03:00
Juliusz Sosinowicz
d677b9dc65 wolfSSL: Conditional build for aes_wrap/aes_unwrap()
Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
2022-04-17 21:47:43 +03:00
Jouni Malinen
f5c711c855 OpenSSL: Unload providers only at process exit
The previous mechanism of unloaded the providers from tls_deinit() did
not work correctly for some cases. In particular, it was possible for
hostapd to end up unloading both providers and not being able to recover
from this if TLS server was not enabled.

Address this more cleanly by introducing a new crypto_unload() function
that will be called when the process is exiting.

Fixes: 097ca6bf0b ("OpenSSL: Unload providers on deinit")
Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-16 18:51:32 +03:00
Jouni Malinen
6a2a60f1db OpenSSL: Do not use the deprecated RSAPrivateKey function
Comment out the call to SSL_use_RSAPrivateKey_ASN1() function when using
OpenSSL 3.0 since that function was deprecated and there does not seem
to be any significant use case for supporting DER encoded RSAPrivateKey
structure in the private key blob.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-16 12:45:32 +03:00
Jouni Malinen
ebb3055e13 OpenSSL: Generate DH parameters automatically if not set with dh_file
This is the recommended way of using DH in OpenSSL TLS handshake.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-16 11:38:44 +03:00
Jouni Malinen
bcd299b326 OpenSSL: Convert DH/DSA parameter loading to new API
OpenSSL 3.0 has deprecated low-level DH/DSA functions. Convert this
loading of the dh_file parameter to use newer API.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-16 11:32:21 +03:00
Jouni Malinen
28c1c91d03 Remove unused dh_blob parameter
This was used earlier in the wpa_supplicant configuration, but there was
no real use for that, so remove the now completely unused parameter to
simplify implementation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-16 10:45:17 +03:00
Jouni Malinen
4a774cf317 Remove useless DH file configuration from TLS library wrappers
These operations do not really have any effect since
tls_connection_set_params() is used only in the TLS client case and the
client receives the DH parameters from the server instead of local
configuration.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 23:42:15 +03:00
Jouni Malinen
feed2f9e75 BoringSSL: Use accessor functions for X509 key usage flags
BoringSSL commit dddb60eb9700110835ff6e2b429de40a17006429 ("Make most of
crypto/x509 opaque.") broke the direct access to these variables, so use
the accessor functions instead.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 13:00:26 +03:00
Jouni Malinen
80be88a089 BoringSSL: Replace stack-allocated X509_STORE_CTX with heap one
BoringSSL commit dddb60eb9700110835ff6e2b429de40a17006429 ("Make most of
crypto/x509 opaque.") broke the stack-allocated version, so move to
using X509_STORE_CTX_new() to get an opaque pointer to X509_STORE_CTX
instead.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 13:00:26 +03:00
Jouni Malinen
b95ed17f6b OpenSSL: Fix build with BoringSSL and LibreSSL 3.3.x and older
Define the EC_GROUP_get_curve() wrapper for the older versions.

Fixes: 3c61f4db4c ("OpenSSL: Replace EC_GROUP_get_curve_GFp() calls with EC_GROUP_get_curve()")
Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 13:00:08 +03:00
Jouni Malinen
ae0f6ee97e OpenSSL: CMAC using the OpenSSL library for non-FIPS cases as well
Commit 0b5e98557e ("FIPS: Use OpenSSL CMAC implementation instead of
aes-omac1.c") added this implementation initially only for the FIPS
builds. However, there does not seem to be any remaining need to avoid
depending on the OpenSSL library implementation for builds, so move to
that implementation unconditionally to reduce the binary size a bit.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 12:00:10 +03:00
Jouni Malinen
0c61f6234f OpenSSL: Implement CMAC using the EVP_MAC API
OpenSSL 3.0 deprecated the low-level CMAC functions, so use the new
EVP_MAC API for this. Maintain the CMAC API variant for older versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 12:00:10 +03:00
Jouni Malinen
4fcd296608 OpenSSL: Extend CMAC to support 192-bit AES
This is used with DPP and SAE when using P-384, so prepare the OpenSSL
implementation to support these cases to allow the internal CMAC
implementation in aes-omac1.c to be replaced.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 12:00:10 +03:00
Jouni Malinen
1176178437 OpenSSL: Remove now unused compatibility wrapper for RSA_bits()
This function is not used anymore, but the compatibility wrapper for
older OpenSSL versions was forgotten to be removed.

Fixes: 09c62aaf11 ("OpenSSL: Determine RSA key size without low-level routines")
Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-15 11:58:34 +03:00
Jouni Malinen
7008c50fa9 OpenSSL: Implement DH using the EVP API
OpenSSL 3.0 deprecated the low-level DH functions, so use the EVP API
for this. Maintain the DH API variant for older versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-10 18:19:58 +03:00
Jouni Malinen
e31500adea OpenSSL: Implement HMAC using the EVP_MAC API
OpenSSL 3.0 deprecated the low-level HMAC functions, so use the EVP_MAC
API for this. Maintain the HMAC API variant for older versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-10 00:39:43 +03:00
Jouni Malinen
097ca6bf0b OpenSSL: Unload providers on deinit
This frees up the allocated resources and makes memory leak detection
more convenient without the known allocations being left behind.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-10 00:19:54 +03:00
Jouni Malinen
092efd45a6 OpenSSL: Implement AES keywrap using the EVP API
OpenSSL 3.0 deprecated the low-level encryption functions, so use the
EVP API for this. Maintain the previous version for BoringSSL and
LibreSSL since not all versions seem to have the EVP_aes_*_wrap()
functions needed for the EVP API.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-09 21:11:10 +03:00
Jouni Malinen
7e4984d9ca OpenSSL: Use a correct EVP_CIPHER_CTX freeing function on an error path
aes_encrypt_init() used incorrect function to free the EVP_CIPHER_CTX
allocated within this function. Fix that to use the OpenSSL function for
freeing the context.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-04-09 20:42:36 +03:00
Jouni Malinen
f9ba3d5c89 OpenSSL 3.0: Set SSL groups using SSL_set1_groups()
The mechanism using SSL_set_tmp_ecdh() has been obsoleted and
SSL_set1_groups() takes care of it instead.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-13 11:27:15 +02:00
Jouni Malinen
09c62aaf11 OpenSSL: Determine RSA key size without low-level routines
RSA low-level routines were deprecated in OpenSSL 3.0.
EVP_PKEY_get_bits(), or its older and more backwards compatible name
EVP_PKEY_bits() can be used here instead.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-13 11:27:12 +02:00
Jouni Malinen
b700a56e14 OpenSSL 3.0: Determine the prime length for an EC key group using EVP_PKEY
EVP_PKEY_get0_EC_KEY() and EC_KEY_get0_group() were deprecated in
OpenSSL 3.0. Add a version of this by determining the group without
fetching the EC_KEY itself from an EVP_PKEY.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-13 11:26:55 +02:00
Jouni Malinen
3c61f4db4c OpenSSL: Replace EC_GROUP_get_curve_GFp() calls with EC_GROUP_get_curve()
EC_GROUP_get_curve_GFp() was deprecated in OpenSSL 3.0.
EC_GROUP_get_curve() can be used to do the exact same thing. Add a
backwards compatibility wrapper for older OpenSSL versions to be able to
use this newer function.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-13 11:26:47 +02:00
Jouni Malinen
e2cb0ca1ac OpenSSL 3.0: Implement crypto_ec_key_group() with new API
Get rid of the now deprecated EVP_PKEY_get0_EC_KEY() and
EC_KEY_get0_group() calls.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-13 11:26:36 +02:00
Jouni Malinen
f6a53f64af OpenSSL: Replace EVP_PKEY_cmp() with EVP_PKEY_eq() when available
OpenSSL 3.0 deprecated EVP_PKEY_cmp() and replaced it with EVP_PKEY_eq()
which is not available in older versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-03-12 10:54:48 +02:00
Jouni Malinen
007fd6111d Clear temporary results from stack in PBKDF2-SHA1
Force stack memory to be cleared of temporary values that might contain
keying material.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2022-02-26 19:12:11 +02:00
Jouni Malinen
9b14aed908 crypto: Remove unused crypto_ec_point_solve_y_coord()
This wrapper function is not used anymore, so remove it.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-01-11 20:15:36 +02:00
Jouni Malinen
58bbcfa31b OpenSSL: Update security level drop for TLS 1.0/1.1 with OpenSSL 3.0
OpenSSL 3.0 dropped these older TLS versions from the security level 2
to 1, so need to drop the security level all the way to 0 if TLS v1.0 or
v1.1 is explicitly enabled.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2022-01-11 17:42:55 +02:00
Jouni Malinen
682fce579f OpenSSL: Fix compressed form encoding for subjectPublicKey with 3.0
It looks like EC_KEY_set_conv_form() for the EC_KEY within the EVP_PKEY
does not take effect for i2d_PUBKEY() with OpenSSL 3.0, so allocate a
new wrapper EVP_PKEY after the conversion format change to be able to
return the correctly encoded (compressed) value here. This is required
for DPP to work correctly.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2022-01-11 17:40:06 +02:00
Jouni Malinen
ff2eccbdf9 OpenSSL: Load legacy provider when needed for OpenSSL 3.0
Number of the older algorithms have now been moved into a separate
provider in OpenSSL 3.0 and they are not available by default.
Explicitly load the legacy provider when such an algorithm is needed for
the first time.

In addition, at least for now, load the legacy providers when initiating
TLS context to maintain existing functionality for various private key
formats.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2022-01-11 17:40:06 +02:00
Jouni Malinen
ddcdd62866 OpenSSL: Clean up EVP_PKEY_get{0,1}_EC_KEY() use
Use get1 whenever actually modifying the EC_KEY parameters and mark the
variable used with get0 const to be compatible with OpenSSL 3.0.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2022-01-11 17:40:06 +02:00
Jouni Malinen
384aa245ef OpenSSL: Speed up crypto_ec_point_compute_y_sqr()
Optimize the calculation by computing (x^2 + a) first to get rid of one
separate multiplication by x.

Signed-off-by: Jouni Malinen <j@w1.fi>
2022-01-11 17:40:06 +02:00
Jouni Malinen
8f4d7e8f06 OpenSSL: Fix build with OpenSSL 1.0.2
OpenSSL 1.0.2 did not define the 'bytes' argument to
X509_NAME_add_entry_by_NID() to be const like it did for the previously
used X509_NAME_add_entry_by_txt(). Add a backwards compatible version of
this call to avoid compilation issues.

Fixes: d51939f2c4 ("DPP: Move CSR routines to use crypto.h")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2021-11-03 16:02:07 +02:00
Cedric Izoard
2086ae46b3 DPP: Replace dpp_bootstrap_key_der() with crypto_ec_key_get_subject_public_key()
As BoringSSL version of i2d_PUBKEY() doesn't respect the
POINT_CONVERSION_COMPRESSED flag redefine a specific
crypto_ec_key_get_subject_public_key() version for BoringSSL based on
dpp_bootstrap_key_der().

The only other user of crypto_ec_key_get_subject_public_key() is SAE-PK
for which the public key should also be formatted using compressed
format.

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-11-03 15:45:00 +02:00
Cedric Izoard
e9f8f81a82 DPP: Use ECDH from crypto.h
Use crypto.h API to implement ECDH in DPP. This needs a new
initialization function in crypto.h to initialize an ECDH with a given
EC key.

Using crypto_ecdh_set_peerkey() to generate the ECDH secret in an
intermediate and dynamically allocated buffer removed the need for the
DPP-specific workaround for inconsistent length returned by
EVP_PKEY_derive() since that crypto_ecdh_set_peerkey() implementation
already had functionality for covering the changing secret_len value
from commit d001fe31ab ("OpenSSL: Handle EVP_PKEY_derive() secret_len
changes for ECDH").

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-11-03 13:52:52 +02:00
Cedric Izoard
4aed5668b4 OpenSSL: Clear the correct flag in crypto_ec_key_get_ecprivate_key()
In case the public key was not included in the EC private key ASN.1
sequence, the flag that was cleared was not the right one. Fix this by
using EC_KEY_set_enc_flags() for both setting and clearing the
EC_PKEY_NO_PUBKEY flag instead of trying to clear that with the
unrelated EC_KEY_clear_flags() function.

Fixes: 2d5772e691 ("DPP: Factorize conversion to ASN.1 ECPrivateKey")
Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-11-03 13:35:36 +02:00
Masashi Honma
726eda65fb wolfSSL: Fix a link error when WPS NFC is disabled
/usr/bin/ld: /home/honma/git/hostap/build/wpa_supplicant/src/wps/wps.o: in function `wps_deinit':
/home/honma/git/hostap/wpa_supplicant/../src/wps/wps.c:184: undefined reference to `dh5_free'
/usr/bin/ld: /home/honma/git/hostap/build/wpa_supplicant/src/wps/wps_common.o: in function `wps_derive_keys':
/home/honma/git/hostap/wpa_supplicant/../src/wps/wps_common.c:83: undefined reference to `dh5_derive_shared'
/usr/bin/ld: /home/honma/git/hostap/wpa_supplicant/../src/wps/wps_common.c:84: undefined reference to `dh5_free'
/usr/bin/ld: /home/honma/git/hostap/build/wpa_supplicant/src/wps/wps_attr_build.o: in function `wps_build_public_key':
/home/honma/git/hostap/wpa_supplicant/../src/wps/wps_attr_build.c:68: undefined reference to `dh5_free'
/usr/bin/ld: /home/honma/git/hostap/wpa_supplicant/../src/wps/wps_attr_build.c:69: undefined reference to `dh5_init'
collect2: error: ld returned 1 exit status
make: *** [Makefile:1892: wpa_supplicant] Error 1

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
2021-11-03 13:04:16 +02:00
Cedric Izoard
d51939f2c4 DPP: Move CSR routines to use crypto.h
Add basic CSR API in crypto.h.

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-10-28 00:39:56 +03:00
Cedric Izoard
d56352b551 DPP: Move dpp_pkcs7_certs() into crypto_pkcs7_get_certificates()
Move implementation of dpp_pkcs7_certs() into OpenSSL specific files.

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-10-28 00:05:42 +03:00
Cedric Izoard
b89176fa6f DPP: Move debug print of EC key to crypto.h
Move the crypto lib specific print of an EC key in dpp_debug_print_key()
to crypto.h.

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-10-27 23:50:23 +03:00
Cedric Izoard
c88b7fcaef DPP: Add crypto_ec_key_cmp() in crypto.h and use it
This gets rid of one more direct OpenSSL call in the DPP implementation.

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
2021-10-27 23:33:54 +03:00