Check that SSL_clear_options and SSL_CTX_clear_options are defined
before using them to avoid compilation failures with older OpenSSL
versions that did not include these macros.
Signed-hostap: Jouni Malinen <j@w1.fi>
When using OpenSSL with TLS-based EAP methods, wpa_supplicant can now be
configured to use OCSP stapling (TLS certificate status request) with
ocsp=1 network block parameter. ocsp=2 can be used to require valid OCSP
response before connection is allowed to continue.
hostapd as EAP server can be configured to return cached OCSP response
using the new ocsp_stapling_response parameter and an external mechanism
for updating the response data (e.g., "openssl ocsp ..." command).
This allows wpa_supplicant to verify that the server certificate has not
been revoked as part of the EAP-TLS/PEAP/TTLS/FAST handshake before
actual data connection has been established (i.e., when a CRL could not
be fetched even if a distribution point were specified).
Signed-hostap: Jouni Malinen <j@w1.fi>
Store context for each tls_init() caller, so events are generated for
the correct wpa_s instance. The tls_global variable is retained for
older OpenSSL implementations that may not have app-data for SSL_CTX.
Signed-hostap: Paul Stewart <pstew@chromium.org>
Move the bignum comparison part into the bignum library to allow a
single implementation of rand generation for both ECC and FCC based
groups.
Signed-hostap: Jouni Malinen <j@w1.fi>
The groups 22, 23, and 24 are not based on a safe prime and generate a
prime order subgroup. As such, struct dh_group is also extended to
include the order for previously defined groups (q=(p-1)/2 since these
were based on a safe prime).
Signed-hostap: Jouni Malinen <j@w1.fi>
In addition to the trivial change in adding the new group ientifier,
this required changes to KDF and random number generation to support
cases where the length of the prime in bits is not a multiple of eight.
The binary presentation of the value needs to be shifted so that the
unused most significant bits are the zero padding rather than the extra
bits in the end of the array.
Signed-hostap: Jouni Malinen <j@w1.fi>
In addition to the mandatory group 19 (256-bit random ECP group) add
support for groups 20 (384-bit), 25 (192-bit), and 26 (224-bit).
Signed-hostap: Jouni Malinen <j@w1.fi>
This makes the SAE implementation a bit simpler by not having to build
the bignum for group order during execution.
Signed-hostap: Jouni Malinen <j@w1.fi>
This is a generic AES CCM implementation that can be used for other
purposes than just implementing CCMP, so it fits better in a separate
file in src/crypto.
Signed-hostap: Jouni Malinen <j@w1.fi>
AES uses the same 128-bit block size with 128, 192, 256 bit keys, so use
the fixed block size definition instead of trying to dynamically set the
block size based on key length. This fixes use of 192-bit and 256-bit
AES keys with crypto_cipher_*() API when using the internal AES
implementation.
Signed-hostap: Jouni Malinen <j@w1.fi>
This is otherwise identical to aes_gcm_ae() but does not use the
plain/crypt pointers since no data is encrypted.
Signed-hostap: Jouni Malinen <j@w1.fi>
This adds 192-bit and 256-bit key support to the internal AES
implementation and extends the AES-GCM functions to accept key length to
enable longer AES key use.
Signed-hostap: Jouni Malinen <j@w1.fi>
This is a generic AES GCM and GMAC implementation that can be used for
other purposes than just implementing GCMP, so it fits better in a
separate file in src/crypto.
Signed-hostap: Jouni Malinen <j@w1.fi>
Explicitly validate seed_len to skip memset call with zero length of
copied data at the end of the buffer. This is not really needed, but it
makes the code a bit easier for static analyzers. This is identical to
the commit a9ea17491a but for the OpenSSL
version of the function.
Signed-hostap: Jouni Malinen <j@w1.fi>
Commit c9e08af24f removed the only user of
the special case MD5 use that would be allowed in FIPS mode in
tls_prf_sha1_md5(). Commit 271dbf1594
removed the file from the build, but left the implementation into the
repository. To clean things up even further, remove this functionality
completely since it is not expected to be needed for FIPS mode anymore.
Signed-hostap: Jouni Malinen <j@w1.fi>
The mechanism to figure out key block size based on ssl->read_hash
does not seem to work with OpenSSL 1.0.1, so add an alternative
mechanism to figure out the NAC key size that seems to work at
least with the current OpenSSL 1.0.1 releases.
Signed-hostap: Jouni Malinen <j@w1.fi>
intended-for: hostap-1
This can be used to implement workaround for authentication servers that
do not handle TLS extensions in ClientHello properly.
Signed-hostap: Jouni Malinen <j@w1.fi>
The PKCS5_PBKDF2_HMAC_SHA1() function in OpenSSL 0.9.7 did not mark
the salt parameter const even though it was not modified. Hide the
compiler warning with a type cast when an old OpenSSL version is
used.
Signed-hostap: Jouni Malinen <j@w1.fi>
Only allow the TLS library keying material exporter functionality to be
used for MSK derivation with TLS-based EAP methods to avoid exporting
internal TLS keys from the library.
Signed-hostap: Jouni Malinen <j@w1.fi>
Use SSL_export_keying_material() if possible, i.e., if OpenSSL is
version 1.0.1 or newer and if client random value is used first. This
allows MSK derivation with TLS-based EAP methods (apart from EAP-FAST)
without exporting the master key from OpenSSL.
Signed-hostap: Jouni Malinen <j@w1.fi>
In theory, the SHA1 operation may fail (e.g., if SHA1 becomes disallowed
in some security policies), so better check the return code from
challenge_hash().
Signed-hostap: Jouni Malinen <j@w1.fi>
Do not leave the tls_global context allocated if the global OpenSSL
initialization fails. This was possible in case of FIPS builds if
the FIPS mode cannot be initialized.
Signed-hostap: Jouni Malinen <j@w1.fi>
This bit is set in the code path that handles keys and certs from places
other than OpenSSL authentication engines. Setting this bit causes
authentication to fail when the server provides certificates that don't
match the client certificate authority.
Commit d9cc4646eb added
crypto_hash_{init,update,finish}() wrappers for OpenSSL, but it
assumed the current HMAC API in OpenSSL. This was changed in 0.9.9
to return error codes from the functions while older versions used
void functions. Add support for the older versions, too.
Signed-hostap: Jouni Malinen <j@w1.fi>
Send an "EAP" signal via the new DBus interface under various
conditions during EAP authentication:
- During method selection (ACK and NAK)
- During certificate verification
- While sending and receiving TLS alert messages
- EAP success and failure messages
This provides DBus callers a number of new tools:
- The ability to probe an AP for available EAP methods
(given an identity).
- The ability to identify why the remote certificate was
not verified.
- The ability to identify why the remote peer refused
a TLS connection.
Signed-hostap: Paul Stewart <pstew@chromium.org>
Mark the debug print excessive and print it only in case the entropy
collection is used since this function can get called pretty frequently.
Signed-hostap: Jouni Malinen <j@w1.fi>
