Add crypto_ec_key_get_ecprivate_key() function in crypto.h and use it
when possible in DPP code.
This function converts a struct crypto_ec_key into a DER encoded ASN.1
ECPrivateKey.
Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
Remove definition of struct crypto_ec_key and directly cast struct
crypto_ec_key * to EVP_PKEY * (and vice versa).
Indeed EVP_PKEY already has a pointer to EC_KEY and removing this
intermediate structure allows smoother transition in removing direct
OpenSSL dependency in DPP.
Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>
Try to parse the private_key blob as private key in PEM format encoded
PKCS#8. PEM format is already supported for private_key file and is now
also supported for private_key blob.
Signed-off-by: Wolfgang Steinwender <wsteinwender@pcs.com>
according to OpenSSL documentation [1], EVP_CIPHER_CTX_set_padding()
should be called after EVP_EncryptInit_ex(), EVP_DecryptInit_ex(), or
EVP_CipherInit_ex(). Not doing this causes EVP_CIPHER_CTX_set_padding()
to return false on OpenSSL-3.0.0, resulting in the impossibility to
connect in many scenarios. Fix this changing the order of function calls
where needed.
[1] https://www.openssl.org/docs/man1.1.1/man3/EVP_CIPHER_CTX_set_padding.html
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Davide Caratti <davide.caratti@gmail.com>
NetworkManager-CI detected systematic failures on test scenarios using
MSCHAPv2 when wpa_supplicant uses OpenSSL-3.0.0.
The 'test_module_tests.py' script also fails, and the following log is
shown:
1627404013.761569: generate_nt_response failed
1627404013.761582: ms_funcs: 1 error
It seems that either DES_set_key() or DES_ecb_encrypt() changed their
semantic, but it doesn't make sense to fix them since their use has been
deprecated. Converting des_encrypt() to avoid use of deprecated
functions proved to fix the problem, and removed a couple of build
warnings at the same time.
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Davide Caratti <davide.caratti@gmail.com>
When CONFIG_ECC is not defined, openssl/ec.h is not included and EC_KEY
not known. Fix be not defining EVP_PKEY_get0_EC_KEY() when CONFIG_ECC is
not defined.
Signed-off-by: Wolfgang Steinwender <wsteinwender@pcs.com>
EAP peer does not expect data present when beginning the Phase 2 in
EAP-{TTLS,PEAP} but in TLS 1.3 session tickets are sent after the
handshake completes.
There are several strategies that can be used to handle this, but this
patch picks up from the discussion[1] and implements the proposed use of
SSL_MODE_AUTO_RETRY. SSL_MODE_AUTO_RETRY has already been enabled by
default in OpenSSL 1.1.1, but it needs to be enabled for older versions.
The main OpenSSL wrapper change in tls_connection_decrypt() takes care
of the new possible case with SSL_MODE_AUTO_RETRY for
SSL_ERROR_WANT_READ to indicate that a non-application_data was
processed. That is not really an error case with TLS 1.3, so allow it to
complete and return an empty decrypted application data buffer.
EAP-PEAP/TTLS processing can then use this to move ahead with starting
Phase 2.
[1] https://www.spinics.net/lists/hostap/msg05376.html
Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
SSL_CTX_get0_certificate() returns NULL if no certificate is installed.
While this should not be the case here due to the loop in
openssl_debug_dump_certificate_chains() proceeding only if the
SSL_CTX_set_current_cert() returns success, it is safer to make
openssl_debug_dump_certificate() explicitly check against NULL before
trying to dump details about the certificate.
Signed-off-by: Pooventhiran G <pooventh@codeaurora.org>
We don't really need to duplicate more of this, so just
move the lib.rules include to the end and do more of the
stuff that's common anyway there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Derive the library name from the directory name, and let each
library Makefile only declare the objects that are needed.
This reduces duplicate code for the ar call. While at it, also
pretty-print that call.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Now that we no longer leave build artifacts outside the build folder, we
can clean up the gitignore a bit. Also move more things to per-folder
files that we mostly had already anyway.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is something I hadn't previously done, but there are
cases where it's needed, e.g., building 'wlantest' and then
one of the tests/fuzzing/*/ projects, they use a different
configuration (fuzzing vs. not fuzzing).
Perhaps more importantly, this gets rid of the last thing
that was dumped into the source directories, apart from
the binaries themselves.
Note that due to the use of thin archives, this required
building with absolute paths.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
wolfSSL_X509_get_ext_d2i() returns STACK_OF(GENERAL_NAME)* for
ALT_NAMES_OID therefore wolfSSL_sk_value needs to expect a
WOLFSSL_GENERAL_NAME*.
In addition, explicitly check for NULL return from wolfSSL_sk_value().
Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
Instead of building in the source tree, put most object
files into the build/ folder at the root, and put each
thing that's being built into a separate folder.
This then allows us to build hostapd and wpa_supplicant
(or other combinations) without "make clean" inbetween.
For the tests keep the objects in place for now (and to
do that, add the build rule) so that we don't have to
rewrite all of that with $(call BUILDOBJS,...) which is
just noise there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Explicit configuration to enable TLS v1.0 and/or v1.1 did not work with
systemwide OpenSSL secpolicy=2 cases (e.g., Ubuntu 20.04). Allow such
systemwide configuration to be overridden if the older TLS versions have
been explicitly enabled in the network profile. The default behavior
follows the systemwide policy, but this allows compatibility with old
authentication servers without having to touch the systemwide policy.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
SSL_add0_chain_cert() was not available in LibreSSL before version
2.9.1.
Fixes: 4b834df5e0 ("OpenSSL: Support PEM encoded chain from client_cert blob")
Signed-off-by: Jouni Malinen <j@w1.fi>
Verify AES-CTR encryption implementation against the test vectors in
NIST SP 800-38a. This implementations was already tested against AES SIV
and EAX mode test vectors, but this adds more explicit testing against
published CTR mode test vectors.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
These are needed for EAP-TEAP server and client side implementation to
allow Phase 2 to be skipped based on client certificate use during Phase
1.
Signed-off-by: Jouni Malinen <j@w1.fi>
The low level ECDSA interface is not available in BoringSSL and has been
deprecetated in OpenSSL 3.0, so move to using a higher layer EVP-based
interface for performing the ECDSA sign/verify operations.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Try to parse the private_key blob as an ECPrivateKey in addition to the
previously supported RSA and DSA.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The previous implementation used mp_rand_prime() to generate a random
value in range 0..m. That is insanely slow way of generating a random
value since mp_rand_prime() is for generating a random _prime_ which is
not what is needed here. Replace that implementation with generationg of
a random value in the requested range without doing any kind of prime
number checks or loops to reject values that are not primes.
This speeds up SAE and EAP-pwd routines by couple of orders of
magnitude..
Signed-off-by: Jouni Malinen <j@w1.fi>
wlantest build did not define build options to determine key management
values for SAE, OWE, and DPP. Add those and the needed SHA512 functions
to be able to decrypt sniffer captures with PMK available from an
external source.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This increases the limit of how many data fragments can be supported
with the internal HMAC implementation. The previous limit was hit with
some FT use cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
Returned policies from X509_get_ext_d2i() need to be freed.
Fixes: 21f1a1e66c ("Report TOD policy")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
If the header of a PEM-formatted certificate or key in private_key file
indicates that it is wrapped with a TPM2 key, try to autoload the
appropriate OpenSSL engine that can transparently unwrap the key. This
enables systems to use TPM2-wrapped keys as drop-in replacements to
ordinary SSL keys.
This functionality needs
https://git.kernel.org/pub/scm/linux/kernel/git/jejb/openssl_tpm2_engine.git
to be installed as an OpenSSL engine.
Signed-off-by: Daniel Kobras <kobras@puzzle-itc.de>
These ciphers do not use a separate MAC algorithm, so digest nid will be
NID_undef. In addition, the fixed_iv_length needs to be set to 4 which
is the implicit part of the IV from PRF. This is needed to fix EAP-FAST
key derivation for cases where GCM/CCM ciphers are used for TLS.
Signed-off-by: Jouni Malinen <j@w1.fi>
This wrapper function is not used anymore, so drop it instead of trying
to figure out good way of implementing it in constant time with various
crypto libraries.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The initial crypto wrapper implementation for wolfSSL seems to have
included a copy-paste error in crypto_bignum_sub() implementation that
was identical to crypto_bignum_add() while mp_sub() should have been
used instead of mp_add().
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This version of TLS PRF is needed when using TEAP with TLS ciphersuites
that are defined to use SHA384 instead of SHA256.
Signed-off-by: Jouni Malinen <j@w1.fi>
The previously used single TOD policy was split into two policies:
TOD-STRICT and TOD-TOFU. Report these separately in the
CTRL-EVENT-EAP-PEER-CERT events (tod=1 for TOD-STRICT and tod=2 for
TOD-TOFU).
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
It looks like EVP_PKEY_derive() may change the returned length of the
buffer from the initial length determination (NULL buffer) to the
fetching of the value. Handle this by updating the secret length based
on the second call instead of the first one. This fixes some cases where
ECDH result has been used with extra data (zeros in the end) with OWE or
FILS PFS.
Signed-off-by: Jouni Malinen <j@w1.fi>
The earlier change to add support for BN_bn2binpad() and
BN_bn2bin_padded() broke this function for cases where no padding is
used (padlen == 0). Those would have always failed after the changes and
the function would return -1. There are no such cases in the current
hostap.git, so this did not have any real issues, but anyway, better fix
this function to match its documentation.
Fixes: 1e237903f5 ("OpenSSL: Use BN_bn2binpad() or BN_bn2bin_padded() if available")
Signed-off-by: Jouni Malinen <j@w1.fi>
The new certificate chain debug dumps used functions that are not
available with LibreSSL or BoringSSL.
Fixes: 857edf4bf4 ("OpenSSL: More debug prints of configured ciphers and certificates")
Signed-off-by: Jouni Malinen <j@w1.fi>
The OPENSSL_VERSION_NUMBER ifdef block left out the local variable that
is needed with all versions. In addition, SSL_set_security_level() is
not available with LibreSSL or BoringSSL.
Fixes: 3ec65a8e38 ("OpenSSL: Allow anon-DH cipher suites to be added for TEAP")
Signed-off-by: Jouni Malinen <j@w1.fi>
The tls_connection_get_cipher_suite() implementation used
SSL_CIPHER_get_protocol_id which was added in OpenSSL 1.1.1. Need to use
compatibility code with older versions.
Fixes: 94714ec341 ("OpenSSL: Add tls_connection_get_cipher_suite()")
Signed-off-by: Jouni Malinen <j@w1.fi>
This will hopefully not be needed for EAP-TLS use cases since there
should not really be a middlebox that looks at the TLS layer details in
case of EAP authentication.
Signed-off-by: Jouni Malinen <j@w1.fi>
hostapd EAP server can now be configured with two separate server
certificates/keys to enable parallel operations using both RSA and ECC
public keys. The server will pick which one to use based on the client
preferences for the cipher suite (in the TLS ClientHello message). It
should be noted that number of deployed EAP peer implementations do not
filter out the cipher suite list based on their local configuration and
as such, configuration of alternative types of certificates on the
server may result in interoperability issues.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds support for a new EAP method: EAP-TEAP (Tunnel Extensible
Authentication Protocol). This should be considered experimental since
RFC 7170 has number of conflicting statements and missing details to
allow unambiguous interpretation. As such, there may be interoperability
issues with other implementations and this version should not be
deployed for production purposes until those unclear areas are resolved.
This does not yet support use of NewSessionTicket message to deliver a
new PAC (either in the server or peer implementation). In other words,
only the in-tunnel distribution of PAC-Opaque is supported for now. Use
of the NewSessionTicket mechanism would require TLS library support to
allow arbitrary data to be specified as the contents of the message.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add a new TLS_CONN_* flag to provide a higher level mechanism for adding
(instead of fully replacing) allowed list of TLS ciphersuites for TEAP
provisioning purposes.
Signed-off-by: Jouni Malinen <j@w1.fi>
This implements "tls-unique" derivation per RFC 5929, Section 3. This
will be needed for channel binding, e.g., with EAP-TEAP.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds a CTRL-EVENT-EAP-PEER-CERT even for depth=0 even if a depth >
0 certificate results in peer certificate validation error. Previously,
this case resulted in the upper layers not getting any information about
the used peer certificate. Now that information is available, e.g., to
allow server certificate -based overriding of the trust to be done.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This is needed to allow upper layer software to learn the hash of the
server certificate for allowing user to override trust root
configuration.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Add tod=1 to CTRL-EVENT-EAP-PEER-CERT events if the peer certificate
includes the TOD policy in the X.509v3 Certificate Policies extension.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This makes it easier to add new information to the callbacks without
having to modify each callback function type in EAPOL and EAP code every
time.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
GnuTLS backend already accepts CA cert blobs in both DER and PEM
formats. Implement similar trial-and-error handling in OpenSSL backend.
Signed-off-by: Santtu Lakkala <santtu.lakkala@jolla.com>
gcc 8.3.0 was apparently clever enough to optimize away the previously
used os_memset() to explicitly clear a stack buffer that contains keys
when that clearing happened just before returning from the function.
Since memset_s() is not exactly portable (or commonly available yet..),
use a less robust mechanism that is still pretty likely to prevent
current compilers from optimizing the explicit clearing of the memory
away.
Signed-off-by: Jouni Malinen <j@w1.fi>
The rcons[] and Td4s[] array values need to be type cast explicitly to
u32 for the left shift 24 operation to be defined due to the implicit
conversion to int not handling the case where MSB would become 1 without
depending on UB.
Credit to OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14929
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
If OCSP_resp_find_status() fails with the first OCSP_CERTID, the
generation of the second OCSP_CERTID ended up leaking memory. Fix this
by freeing the previously allocated OCSP_CERTID on that code path.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
BN_clear() does not free the BIGNUM; it only clears its value. Fix this
memory leak by using the appropriate BN_clear_free() function instead.
Fixes: b11fa98bcb ("Add explicit checks for peer's DH public key")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
ec_params needs to be freed before returning from the function.
Extension of this function to support BoringSSL introduced this memory
leak and that was later extended to be the only variant and apply to
OpenSSL and LibreSSL cases as well in commit c23e87d0d1 ("OpenSSL:
Replace EVP_PKEY_paramgen() with EC_KEY_new_by_curve_name()").
Fixes: f29761297b ("BoringSSL: Implement crypto_ecdh_init()")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Commit 373c796948 ("OpenSSL: Fix compile with OpenSSL 1.1.0 and
deprecated APIs") removed a call to ENGINE_load_dynamic() for newer
versions of OpenSSL, asserting that it should happen automatically.
That appears not to be the case, and loading engines now fails because
the dynamic engine isn't present.
Fix it by calling ENGINE_load_builtin_engines(), which works for all
versions of OpenSSL. Also remove the call to ERR_load_ENGINE_strings()
because that should have happened when SSL_load_error_strings() is
called anyway.
Fixes: 373c796948 ("OpenSSL: Fix compile with OpenSSL 1.1.0 and deprecated APIs")
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This converts crypto_bignum_to_bin() to use the OpenSSL/BoringSSL
functions BN_bn2binpad()/BN_bn2bin_padded(), when available, to avoid
differences in runtime and memory access patterns depending on the
leading bytes of the BIGNUM value.
OpenSSL 1.0.2 and LibreSSL do not include such functions, so those cases
are still using the previous implementation where the BN_num_bytes()
call may result in different memory access pattern.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
It looks like SSL_CTX_set1_curves_list() command alone is not sufficient
to enable ECDH curve selection with older OpenSSL versions for TLS
server, so enable automatic selection first and specify the exact list
of curves after that.
This fixes failures in openssl_ecdh_curves test case when hostapd uses
OpenSSL 1.0.2.
Signed-off-by: Jouni Malinen <j@w1.fi>
Get rid of the branches that depend on the result of the Legendre
operation. This is needed to avoid leaking information about different
temporary results in blinding mechanisms.
This is related to CVE-2019-9494 and CVE-2019-9495.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This helps in reducing measurable timing differences in operations
involving private information. BoringSSL has removed BN_FLG_CONSTTIME
and expects specific constant time functions to be called instead, so a
bit different approach is needed depending on which library is used.
The main operation that needs protection against side channel attacks is
BN_mod_exp() that depends on private keys (the public key validation
step in crypto_dh_derive_secret() is an exception that can use the
faster version since it does not depend on private keys).
crypto_bignum_div() is currently used only in SAE FFC case with not
safe-prime groups and only with values that do not depend on private
keys, so it is not critical to protect it.
crypto_bignum_inverse() is currently used only in SAE FFC PWE
derivation. The additional protection here is targeting only OpenSSL.
BoringSSL may need conversion to using BN_mod_inverse_blinded().
This is related to CVE-2019-9494 and CVE-2019-9495.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
These wpa_supplicant network profile parameters could be used to specify
a single match string that would be used against the dNSName items in
subjectAltName or CN. There may be use cases where more than one
alternative match string would be useful, so extend these to allow a
semicolon delimited list of values to be used (e.g.,
"example.org;example.com"). If any of the specified values matches any
of the dNSName/CN values in the server certificate, consider the
certificate as meeting this requirement.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Incorrect gen->type value was used to check whether subjectAltName
contained dNSName entries. This resulted in all domain_match and
domain_suffix_match entries failing to find a match and rejecting the
server certificate. Fix this by checking against the correct type
definition for dNSName.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
While commit 1c156e783d ("Fixed tls_prf() to handle keys with
odd length") added support for keys with odd length, the function
never reached this code as the function would return earlier in
case the key length was odd. Fix this by removing the first check
for the key length.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
SSL_use_certificate_chain_file() is not available in the current
BoringSSL even though the defined OPENSSL_VERSION_NUMBER is large enough
to claim that this function would be present in the OpenSSL API.
Fall back to using SSL_use_certificate_file() with BoringSSL to fix the
build.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Allow an additional context value to be passed to TLS exporter as
specified in RFC 5705 section 4.
This does not yet implement it for the internal TLS implementation.
However, as currently nothing uses context yet, this will not break
anything right now. WolfSSL maintainers also stated that they are not
going to add context support yet, but would look into it if/when this is
required by a published draft or a standard.
Signed-off-by: Ervin Oro <ervin.oro@aalto.fi>
X509_get_subject_name() in OpenSSL 1.0.2 does not mark its argument as a
const pointer, so need to type cast this to avoid a build warning.
Fixes: 841205a1ce ("OpenSSL: Add 'check_cert_subject' support for TLS server")
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This patch added 'check_cert_subject' support to match the value of
every field against the DN of the subject in the client certificate. If
the values do not match, the certificate verification will fail and will
reject the user.
This option allows hostapd to match every individual field in the right
order, also allow '*' character as a wildcard (e.g OU=Development*).
Note: hostapd will match string up to 'wildcard' against the DN of the
subject in the client certificate for every individual field.
Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
Signed-off-by: Jouni Malinen <j@w1.fi>
Pass the group order (if known/specified) to crypto_dh_derive_secret()
(and also to OpenSSL DH_generate_key() in case of Group 5) and verify
that the public key received from the peer meets 1 < pubkey < p and
pubkey^q == 1 mod p conditions.
While all these use cases were using only ephemeral DH keys, it is
better to use more explicit checks while deriving the shared secret to
avoid unexpected behavior.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
The flags variable needs to be initialized to 0 if check_crl is 0 in
the updated configuration.
Fixes: 159a7fbdea ("crl_reload_interval: Add CRL reloading support")
Signed-off-by: Jouni Malinen <j@w1.fi>
Add test-tls program that can be used for fuzzing the internal TLS
client and server implementations. This tool can write client or server
messages into a file as an initialization step and for the fuzzing step,
that file (with potential modifications) can be used to replace the
internally generated message contents.
The TEST_FUZZ=y build parameter is used to make a special build where a
hardcoded random number generator and hardcoded timestamp are used to
force deterministic behavior for the TLS operations.
Signed-off-by: Jouni Malinen <j@w1.fi>
This patch adds a new flag 'crl_reload_interval' to reload CRL
periodically. This can be used to reload ca_cert file and the included
CRL information on every new TLS session if difference between the last
reload and the current time in seconds is greater than
crl_reload_interval.
This reloading is used for cases where check_crl is 1 or 2 and the CRL
is included in the ca_file.
Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
When using LibreSSL build fails with:
../src/crypto/tls_openssl.o: in function `tls_connection_client_cert':
../src/crypto/tls_openssl.c:2817: undefined reference to `SSL_use_certificate_chain_file'
collect2: error: ld returned 1 exit status
make: *** [Makefile:1901: wpa_supplicant] Error 1
There is no such function in LibreSSL.
Signed-off-by: Stefan Strogin <stefan.strogin@gmail.com>
Some distributions (e.g., Debian) have started introducting systemwide
OpenSSL policies to disable older protocol versions and ciphers
throughout all programs using OpenSSL. This can result in significant
number of interoperability issues with deployed EAP implementations.
Allow explicit wpa_supplicant (EAP peer) and hostapd (EAP server)
parameters to be used to request systemwide policies to be overridden if
older versions are needed to be able to interoperate with devices that
cannot be updated to support the newer protocol versions or keys. The
default behavior is not changed here, i.e., the systemwide policies will
be followed if no explicit override configuration is used. The overrides
should be used only if really needed since they can result in reduced
security.
In wpa_supplicant, tls_disable_tlsv1_?=0 value in the phase1 network
profile parameter can be used to explicitly enable TLS versions that are
disabled in the systemwide configuration. For example,
phase1="tls_disable_tlsv1_0=0 tls_disable_tlsv1_1=0" would request TLS
v1.0 and TLS v1.1 to be enabled even if the systemwide policy enforces
TLS v1.2 as the minimum version. Similarly, openssl_ciphers parameter
can be used to override systemwide policy, e.g., with
openssl_ciphers="DEFAULT@SECLEVEL=1" to drop from security level 2 to 1
in Debian to allow shorter keys to be used.
In hostapd, tls_flags parameter can be used to configure similar
options. E.g., tls_flags=[ENABLE-TLSv1.0][ENABLE-TLSv1.1]
Signed-off-by: Jouni Malinen <j@w1.fi>
SSL_use_certificate_chain_file() was added in OpenSSL 1.1.0, so need to
maintain the old version using SSL_use_certificate_file() for backwards
compatibility.
Fixes: 658c39809b ("OpenSSL: Load chain certificates from client_cert file")
Signed-off-by: Jouni Malinen <j@w1.fi>
The PADDING array used when adding padding bits in MD4 never change
so can be made const. Making it const puts the array in .rodata
section and can save a few bytes of RAM for systems running without
virtual memory.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sony.com>
The function sha512_compress() has a local variable that consumes 640
bytes. This is very heavy for embedded devices that have limited stack
resources. Handle this by replacing the static allocation with a dynamic
one.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
According to random(4) manual, /dev/random is essentially deprecated on
Linux for quite some time:
"The /dev/random interface is considered a legacy interface, and
/dev/urandom is preferred and sufficient in all use cases, with the
exception of applications which require randomness during early boot
time; for these applications, getrandom(2) must be used instead, because
it will block until the entropy pool is initialized."
An attempt to use it would cause unnecessary blocking on machines
without a good hwrng even when it shouldn't be needed. Since Linux 3.17,
a getrandom(2) call is available that will block only until the
randomness pool has been seeded.
It is probably not a good default yet as it requires a fairly recent
kernel and glibc (3.17 and 2.25 respectively).
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
This helps the server to build the chain to trusted CA when PEM encoding
of client_cert is used with multiple listed certificates. This was
already done for the server certificate configuration, but the client
certificate was limited to using only the first certificate in the file.
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Add the ability to ignore time-based CRL errors from OpenSSL by
specifying a new configuration parameter, check_crl_strict=0.
This causes the following:
- This setting does nothing when CRL checking is not enabled.
- When CRL is enabled, "strict mode" will cause CRL time errors to not
be ignored and will continue behaving as it currently does.
- When CRL is enabled, disabling strict mode will cause CRL time
errors to be ignored and will allow connections.
By default, check_crl_strict is set to 1, or strict mode, to keep
current functionality.
Signed-off-by: Sam Voss <sam.voss@rockwellcollins.com>
Build configurations with CONFIG_TLS=internal and NEED_SHA512 failed due
to missing sha512.c file. Add that file even though this is not really
used in the currently available configuration combinations since DPP and
OWE are the only users of it and the internal crypto implementation
supports neither.
Signed-off-by: Jouni Malinen <j@w1.fi>
Some versions of OpenSSL need server support for ECDH to be explicitly
enabled, so provide a new parameter for doing so and all
SSL_{,CTX_}set_ecdh_auto() for versions that need it to enable automatic
selection.
Signed-off-by: Hristo Venev <hristo@venev.name>
When using LibreSSL instead of OpenSSL, linkage of hostapd executable
fails with the following error when using some LibreSSL versions
../src/crypto/tls_openssl.o: In function `tls_verify_cb':
tls_openssl.c:(.text+0x1273): undefined reference to `ASN1_STRING_get0_data'
../src/crypto/tls_openssl.o: In function `tls_connection_peer_serial_num':
tls_openssl.c:(.text+0x3023): undefined reference to `ASN1_STRING_get0_data'
collect2: error: ld returned 1 exit status
make: *** [Makefile:1278: hostapd] Error 1
ASN1_STRING_get0_data is present in recent OpenSSL, but absent in some
versions of LibreSSL (confirmed for version 2.6.5), so fallback needs to
be defined in this case, just like for old OpenSSL.
This patch was inspired by similar patches to other projects, such as
spice-gtk, pjsip.
Link: https://bugs.gentoo.org/672834
Signed-off-by: Andrey Utkin <andrey_utkin@gentoo.org>
This can be used to fetch the serial number of the peer certificate in
the EAP server. For now, this is implemented only with OpenSSL.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
SSL_session_reused() is the same as the deprecated SSL_cache_hit(). The
engine load stuff is now handled by OPENSSL_init().
Signed-off-by: Rosen Penev <rosenp@gmail.com>
The n argument to this function is number of bits, not bytes, to shift.
As such, need to use mp_rshb() instead of mp_rshd(). This fixes EAP-pwd
with P-521 curve.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Implement tls_connection_get_eap_fast_key() using cryptographic
primitives as wolfSSL implements different spec.
Signed-off-by: Sean Parkinson <sean@wolfssl.com>
Depend on proper wolfSSL configuration instead of trying to define these
build configuration values externally.
Signed-off-by: Sean Parkinson <sean@wolfssl.com>
Use the correct intermediate result from mp_sqrmod() in the following
mp_mulmod() call (t is not initialized here; it is used only after this
step).
Signed-off-by: Sean Parkinson <sean@wolfssl.com>
Provide full uncompressed DER data length to wc_ecc_import_point_der()
even though a compressed form is used here. In addition, use
ECC_POINT_COMP_* defined values to make this more readable.
Signed-off-by: Sean Parkinson <sean@wolfssl.com>
This may be needed to avoid interoperability issues with the new
protocol version and significant changes for EAP use cases in both key
derivation and handshake termination.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes this more easily available throughout the handshake
processing, if needed, compared to having to pass through the function
argument through the full path from
tls_connection{,_server}_handshake().
Signed-off-by: Jouni Malinen <j@w1.fi>
OpenSSL 1.1.1 added cases where ClientHello generation may fail due to
"no ciphers available". There is no point in sending out the resulting
TLS Alert message to the server since the server does not know what to
do with it before ClientHello. Instead, simply terminate the TLS
handshake locally and report EAP failure to avoid getting stuck waiting
for a timeout.
Signed-off-by: Jouni Malinen <j@w1.fi>
LibreSSL v2.7 claims an OPENSSL_VERSION_NUMBER value that would indicate
that SSL_OP_NO_TLSv1_3 is available, but that does not seem to be the
case with LibreSSL. As such, skip this step based on whether
SSL_OP_NO_TLSv1_3 is defined to avoid build issues.
Signed-off-by: Jouni Malinen <j@w1.fi>
This commit takes care of the sigalg configuration using the relatively
recent SSL_CTX_set_verify_algorithm_prefs() addition from April 2017 to
address the functionality that was already there with OpenSSL using
SSL_set1_sigalgs_list().
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
BoringSSL removed the special OpenSSL cipher suite value "SUITEB192", so
need to map that to the explicit ciphersuite
(ECDHE-ECDSA-AES256-GCM-SHA384), curve (P-384), and sigalg
(SSL_SIGN_ECDSA_SECP384R1_SHA384) to allow 192-bit level Suite B with
ECDSA to be used.
This commit takes care of the sigalg configuration using the relatively
recent SSL_CTX_set_verify_algorithm_prefs() addition from April 2017.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
BoringSSL removed the special OpenSSL cipher suite value "SUITEB192", so
need to map that to the explicit ciphersuite
(ECDHE-ECDSA-AES256-GCM-SHA384), curve (P-384), and sigalg
(SSL_SIGN_ECDSA_SECP384R1_SHA384) to allow 192-bit level Suite B with
ECDSA to be used.
This commit takes care of the ciphersuite and curve configuration.
sigalg change is in a separate commit since it requires a newer
BoringSSL API function that may not be available in all builds.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
In practice, this does the same thing (i.e., allows only the P-384 curve
to be used), but using an older API function that happens to be
available in some BoringSSL builds while the newer one is not.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
TLS v1.3 needs to be explicitly disabled to allow cipher suite selection
for EAP-FAST to work with OpenSSL builds that include TLS v1.3 support.
Without this, OpenSSL refuses to generate ClientHello due to the cipher
suite list including only ciphers allowed with older versions than TLS
v1.3.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
GnuTLS-based builds can now be done using either libnettle or libgcrypt
for crypto functionality:
CONFIG_TLS=gnutls
CONFIG_CRYPTO=nettle
CONFIG_TLS=gnutls
CONFIG_CRYPTO=gnutls
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows OpenSSL-style configuration of Suite B parameters to be used
in the wpa_supplicant network profile. 128-bit and 192-bit level
requirements for ECDHE-ECDSA cases are supported. RSA >=3K case is
enforced using GnuTLS %PROFILE_HIGH special priority string keyword.
Signed-off-by: Jouni Malinen <j@w1.fi>
This extends GnuTLS support for tls_disable_v1_{0,1,2}=1 flags in the
phase1 network profile parameter in wpa_supplicant.
Signed-off-by: Jouni Malinen <j@w1.fi>
Indicate more clearly when the parsing succeeds to avoid ending the
debug prints with various internal GnuTLS internal error messages even
when the parsing actually succeeded in the end.
Signed-off-by: Jouni Malinen <j@w1.fi>
Replace the internal HMAC MD5, SHA-1, and SHA256 implementations with
the ones from libgcrypt and also add the SHA384 and SHA512 versions.
Signed-off-by: Jouni Malinen <j@w1.fi>
Replace the internal SHA256 implementation with the one from libgcrypt
and also add the SHA384 and SHA512 versions.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use a shared helper function instead of implementing practically same
sequence separately for each hash function.
Signed-off-by: Jouni Malinen <j@w1.fi>
The patch offers alternate implementations of some functions using the
abstract cryptographic API.
This work was done in preparation for the changes to allow hostap to be
compiled with the wolfSSL cryptography and TLS library.
Signed-off-by: Sean Parkinson <sean@wolfssl.com>
This implements crypto_dh_init() and crypto_dh_derive_secret() using
os_get_random() and crypto_mod_exp() for all crypto_*.c wrappers that
include crypto_mod_exp() implementation.
Signed-off-by: Jouni Malinen <j@w1.fi>
The BoringSSL version of crypto_ecdh_init() and dpp_gen_keypair() works
fine with OpenSSL as well, so use that same implementation for both to
avoid unnecessary maintanence of multiple versions.
Signed-off-by: Jouni Malinen <j@w1.fi>
There is no need to go through EC_GROUP_new_by_curve_name(),
EC_KEY_new(), and EC_KEY_set_group() when a single call to
EC_KEY_new_by_curve_name() takes care of all that.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows wpa_supplicant configuration with phase1="tls_suiteb=1" to
use openssl_ciphers="ECDHE-RSA-AES256-GCM-SHA384" to further limit the
possible TLS cipher suites when using Suite B with RSA >3K keys. This
combination disables use of DHE and as such, mandates ECDHE to be used.
Signed-off-by: Jouni Malinen <j@w1.fi>
These functions are a bit awkward to use for one-off file loads, as
suggested by the tls_clear_default_passwd_cb() logic. There was also
some historical mess with OpenSSL versions and either not having per-SSL
settings, having per-SSL settings but ignoring them, and requiring the
per-SSL settings.
Instead, loading the key with the lower-level functions seems a bit
tidier and also allows abstracting away trying both formats, one after
another.
Signed-off-by: David Benjamin <davidben@google.com>
There's no need to make an extra copy of private_key_passwd for
SSL_{CTX_,}set_default_passwd_cb().
Signed-off-by: David Benjamin <davidben@google.com>
BoringSSL restored the previously removed AES-192 ECB support in ("Add
AES-192 ECB.") commit. Since this is needed for DPP with the P-384
curve, restore support for this through EVP_aes_192_ecb().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it clearer why some AES operations fail especially with
BoringSSL where the 192-bit case is not supported.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
BoringSSL does not provide some of the OpenSSL API that was used here,
so update this to use similar design to what was already done with DPP
key derivation.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like BoringSSL claims to have OPENSSL_VERSION_NUMBER for a
1.1.0 version, but it does not provide SSL_set_default_passwd_cb*(). For
now, comment out this regardless of the version BoringSSL claims to be.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like BoringSSL claims to have OPENSSL_VERSION_NUMBER for a
1.1.0 version, but it does not provide SSL_set1_sigalgs_list(). For now,
comment out this regardless of the version BoringSSL claims to be.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like BoringSSL claims to have OPENSSL_VERSION_NUMBER for a
1.1.0 version, but it does not provide RSA_bits(). For now, add this
backwards compatibility wrapper for BoringSSL regardless of the version
it claims to be.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Reject a DHE handshake if the server uses a DH prime that does not have
sufficient length to meet the Suite B 192-bit level requirement (<= 3k
(3072) bits).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The hostapd.conf tls_flags=[SUITEB-NO-ECDH] and wpa_supplicant network
profile phase1="tls_suiteb_no_ecdh=1" can now be used to configure Suite
B RSA constraints with ECDHE disabled. This is mainly to allow
the DHE TLS cipher suite to be tested.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Reject a peer certificate chain if it includes an RSA public key that
does not use sufficient key length to meet the Suite B 192-bit level
requirement (<= 3k (3072) bits).
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This adds phase1 parameter tls_suiteb=1 into wpa_supplicant
configuration to allow TLS library (only OpenSSL supported for now) to
use Suite B 192-bit level rules with RSA when using >= 3k (3072) keys.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
ubsan reported:
../src/crypto/random.c:69:30: runtime error: shift exponent 32 is too large for 32-bit type 'unsigned int'
Explicitly check for the ROL32(x, 0) case which is supposed to be a
no-op.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Previously, the pointer to strdup passwd was left in OpenSSL library
default_passwd_cb_userdata and even the default_passwd_cb was left set
on an error path. To avoid unexpected behavior if something were to
manage to use there pointers, clear them explicitly once done with
loading of the private key.
Signed-off-by: Jouni Malinen <j@w1.fi>
Since OpenSSL version 1.1.0f, SSL_use_PrivateKey_file() uses the
callback from the SSL object instead of the one from the CTX, so let's
set the callback on both SSL and CTX. Note that
SSL_set_default_passwd_cb*() is available only in 1.1.0.
Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Add a build option to select different default ciphers for OpenSSL
instead of the hardcoded default "DEFAULT:!EXP:!LOW".
This new option is useful on distributions where the security level
should be consistent for all applications, as in Fedora [1]. In such
cases the new configuration option would be set to "" or
"PROFILE=SYSTEM" to select the global crypto policy by default.
[1] https://fedoraproject.org/wiki/Changes/CryptoPolicy
Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
The additional SHA-384 and SHA-512 functionality is needed to support
DPP with various ECC curves.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, only SHA1 hash -based server certificate matching was used,
but the OCSP response may use SHA256 instead of SHA1, so check the match
with both hash functions, if needed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The KDF define in RFC 5295 is very similar to HKDF-Expand() defined in
RFC 5869. Allow a NULL label to be used to select the RFC 5869 version
with arbitrary seed (info in RFC 5869) material without forcing the
label and NULL termination to be included. HKDF-Expand() will be needed
for OWE.
Signed-off-by: Jouni Malinen <j@w1.fi>
These allow ECDH to be used with compressed public key encoding (only
x-coordinate). This is needed for FILS PFS and OWE.
Signed-off-by: Jouni Malinen <j@w1.fi>
This leads to cleaner code overall, and also reduces the size
of the hostapd and wpa_supplicant binaries (in hwsim test build
on x86_64) by about 2.5 and 3.5KiB respectively.
The mechanical conversions all over the code were done with
the following spatch:
@@
expression SIZE, SRC;
expression a;
@@
-a = os_malloc(SIZE);
+a = os_memdup(SRC, SIZE);
<...
if (!a) {...}
...>
-os_memcpy(a, SRC, SIZE);
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
CONFIG_TLS=linux can now be used to select the crypto implementation
that uses the user space socket interface (AF_ALG) for the Linux kernel
crypto implementation. This commit includes some of the cipher, hash,
and HMAC functions. The functions that are not available through AF_ALG
(e.g., the actual TLS implementation) use the internal implementation
(CONFIG_TLS=internal).
Signed-off-by: Jouni Malinen <j@w1.fi>
These operations may fail with some crypto wrappers, so allow the
functions to report their results to the caller.
Signed-off-by: Jouni Malinen <j@w1.fi>
This is a copy of the internal HMAC-SHA256 implementation with the hash
block size and output length updated to match SHA384 parameters.
Signed-off-by: Jouni Malinen <j@w1.fi>
The output length was incorrect (32 from the copy-pasted SHA256
version). Fix this to return the correct number of octets (48) for
SHA384. This fixes incorrect key derivation in FILS when using the
SHA384-based AKM.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If the keychain holds additional certificates other than the end
certificate, read them into the certificate chain.
Signed-off-by: Paul Stewart <pstew@google.com>
Number of deployed use cases assume the default OpenSSL behavior of auto
chaining the local certificate is in use. BoringSSL removed this
functionality by default, so we need to restore it here to avoid
breaking existing use cases.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This simplifies the implementation since the SSL_clear_options() and
SSL_CTX_clear_options() are available in all supported versions of
OpenSSL. These were previously needed with older (now obsolete) versions
of OpenSSL, but the ifdefs were missed when removing the more explicit
version macro based backwards compatibility sections.
In practice, this reverts commit
d53d2596e4.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The previous implementation was hardcoded to use 128-bit AES key
(AEAD_AES_SIV_CMAC_256). Extend this by allowing AEAD_AES_SIV_CMAC_384
and AEAD_AES_SIV_CMAC_512 with 192-bit and 256-bit AES keys.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This basically just follows commit
587b0457e0 ('LibreSSL: Fix build with
LibreSSL') with the same pattern, which was missed here.
Signed-off-by: Julian Ospald <hasufell@hasufell.de>
Due to a missing guard for old OpenSSL code, SSL_library_init() was not
called, which is required for LibreSSL. Likewise for cleanup.
Signed-off-by: Christian Neukirchen <chneukirchen@gmail.com>
Add LibreSSL check to old OpenSSL #ifdef guard as DH_{get0,set0}_key()
is not implemented in LibreSSL.
Signed-off-by: Christian Neukirchen <chneukirchen@gmail.com>
