oweals/openssl.git
6 years agoVMS: stop trying to build shared libraries from static ones
Richard Levitte [Wed, 12 Sep 2018 08:59:06 +0000 (10:59 +0200)]
VMS: stop trying to build shared libraries from static ones

The possibility to do this was killed when we started producing object
file names with encoded intention (and possibly different builds), and
leads to build errors.

With that, 'libobj2shlib' is renamed to 'obj2shlib' to reflect this
design change.  The old name is still used if the new one isn't
available, for the sake of backward compatibility.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7198)

6 years agoReplace the public RAND_DRBG_USED_FLAGS #define by an internal constant
Dr. Matthias St. Pierre [Tue, 11 Sep 2018 22:37:15 +0000 (00:37 +0200)]
Replace the public RAND_DRBG_USED_FLAGS #define by an internal constant

The new DRBG API added the aforementioned #define. However, it is
used internally only and having it defined publicly does not serve
any purpose except causing potential version compatibility problems.

Fixes #7182

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7190)

6 years agoFix a possible recursion in SSLfatal handling
Bernd Edlinger [Tue, 11 Sep 2018 09:44:13 +0000 (11:44 +0200)]
Fix a possible recursion in SSLfatal handling

Fixes: #7161 (hopefully)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7175)

6 years agoUpdate README.md
Brian 'geeknik' Carpenter [Wed, 12 Sep 2018 06:24:00 +0000 (01:24 -0500)]
Update README.md

Fixes a minor typo that would cause the linker to complain about not finding -lFuzzer

CLA: trivial

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7197)

6 years agominor fixes for Windows
Viktor Szakats [Tue, 11 Sep 2018 22:34:00 +0000 (22:34 +0000)]
minor fixes for Windows

- fix to use secure URL in generated Windows resources
- fix a potentially uninitialized variable
- fix an unused variable warning

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7189)

6 years agocrypto/sm2/sm2_sign.c: ensure UINT16_MAX is properly defined
Richard Levitte [Wed, 12 Sep 2018 00:06:26 +0000 (02:06 +0200)]
crypto/sm2/sm2_sign.c: ensure UINT16_MAX is properly defined

Fixes #7186

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7193)

6 years agoBuild files: Separate 'lib' intent from 'shlib' intent
Richard Levitte [Mon, 10 Sep 2018 00:28:39 +0000 (02:28 +0200)]
Build files: Separate 'lib' intent from 'shlib' intent

This is in preparation for having separate CFLAGS variables for static
and for shared library builds.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7159)

6 years agoConfigure: Name object files according to the product they are part of
Richard Levitte [Mon, 10 Sep 2018 00:21:40 +0000 (02:21 +0200)]
Configure: Name object files according to the product they are part of

This will allow to have different object files for different products,
even if they share the same source code, and possibly different builds
for those different object files.

For example, one can have something like this:

    SOURCES[libfoo]=cookie.c
    INCLUDES[libfoo]=include/foo
    SOURCES[libbar]=cookie.c
    INCLUDES[libbar]=include/bar

This would mean that the object files and libraries would be build
somewhat like this:

    $(CC) -Iinclude/foo -o libfoo-lib-cookie.o cookie.c
    $(AR) $(ARFLAGS) libfoo.a libfoo-lib-cookie.o
    $(CC) -Iinclude/bar -o libbar-lib-cookie.o cookie.c
    $(AR) $(ARFLAGS) libbar.a libbar-lib-cookie.o

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7159)

6 years agoConfigure: DON'T trickle down includes from products to sources
Richard Levitte [Mon, 10 Sep 2018 00:18:22 +0000 (02:18 +0200)]
Configure: DON'T trickle down includes from products to sources

Instead, use the include settings from the products later in the process,
making it possible to have different includes for two different libraries
that share the same source code.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7159)

6 years agoLimit the number of AES-GCM keys allowed in TLS. A new error is raised if this
Pauli [Tue, 11 Sep 2018 23:25:20 +0000 (09:25 +1000)]
Limit the number of AES-GCM keys allowed in TLS.  A new error is raised if this
limit is ever reached.

This is a FIPS 140-2 requirement from IG A.5 "Key/IV Pair Uniqueness
Requirements from SP 800-38D".

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7129)

6 years agoSpeed for HMACs.
Pauli [Tue, 14 Aug 2018 04:04:47 +0000 (14:04 +1000)]
Speed for HMACs.

Add support for HMAC over any evp supported digest.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6945)

6 years agoAdd a note to CHANGES indicating that AES-XTS now enforces two different
Pauli [Tue, 11 Sep 2018 22:42:15 +0000 (08:42 +1000)]
Add a note to CHANGES indicating that AES-XTS now enforces two different
keys.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7120)

6 years agoFIPS 140-2 IG A.9 XTS key check.
Pauli [Wed, 5 Sep 2018 02:18:22 +0000 (12:18 +1000)]
FIPS 140-2 IG A.9 XTS key check.

Add a check that the two keys used for AES-XTS are different.

One test case uses the same key for both of the AES-XTS keys.  This causes
a failure under FIP 140-2 IG A.9.  Mark the test as returning a failure.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7120)

6 years agoThe next version in master is at least 1.1.2, not 1.1.1x
Richard Levitte [Tue, 11 Sep 2018 14:23:22 +0000 (16:23 +0200)]
The next version in master is at least 1.1.2, not 1.1.1x

The OMC hasn't yet decided what the next release version will be, but
it's at least going to 1.1.2, so we set that value for the moment.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7180)

6 years agoPrepare for 1.1.1a-dev
Matt Caswell [Tue, 11 Sep 2018 12:49:46 +0000 (13:49 +0100)]
Prepare for 1.1.1a-dev

Reviewed-by: Richard Levitte <levitte@openssl.org>
6 years agoPrepare for 1.1.1 release OpenSSL_1_1_1
Matt Caswell [Tue, 11 Sep 2018 12:48:18 +0000 (13:48 +0100)]
Prepare for 1.1.1 release

Reviewed-by: Richard Levitte <levitte@openssl.org>
6 years agoUpdate copyright year
Matt Caswell [Tue, 11 Sep 2018 12:22:14 +0000 (13:22 +0100)]
Update copyright year

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7176)

6 years agoCAPI engine: add support for RSA_NO_PADDING
Richard Levitte [Tue, 11 Sep 2018 09:00:30 +0000 (11:00 +0200)]
CAPI engine: add support for RSA_NO_PADDING

Since the SSL code started using RSA_NO_PADDING, the CAPI engine became
unusable.  This change fixes that.

Fixes #7131

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7174)

6 years agoCheck the return value from ASN1_INTEGER_set
Matt Caswell [Mon, 10 Sep 2018 15:23:14 +0000 (16:23 +0100)]
Check the return value from ASN1_INTEGER_set

Found by Coverity

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7169)

6 years agoValidate the SM2 digest len before use
Matt Caswell [Mon, 10 Sep 2018 15:53:17 +0000 (16:53 +0100)]
Validate the SM2 digest len before use

Fixes a Coverity complaint.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7170)

6 years agoDon't cast an int * to a size_t *
Matt Caswell [Mon, 10 Sep 2018 15:03:14 +0000 (16:03 +0100)]
Don't cast an int * to a size_t *

If sizeof(int) != sizeof(size_t) this may not work correctly.

Fixes a Coverity issue.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7168)

6 years agoMore updates to CHANGES and NEWS for the 1.1.1 release
Matt Caswell [Mon, 10 Sep 2018 13:44:04 +0000 (14:44 +0100)]
More updates to CHANGES and NEWS for the 1.1.1 release

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7167)

6 years agoUpdates NEWS for the 1.1.1 release
Matt Caswell [Mon, 10 Sep 2018 10:51:30 +0000 (11:51 +0100)]
Updates NEWS for the 1.1.1 release

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7164)

6 years agoUpdate the pyca-cryptography submodule
Matt Caswell [Mon, 10 Sep 2018 10:33:40 +0000 (11:33 +0100)]
Update the pyca-cryptography submodule

Hopefully this will resolve spurious travis failures.

[extended tests]

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7163)

6 years agoAdd a sentence in CHANGES to note SM2 support
Paul Yang [Mon, 10 Sep 2018 05:42:00 +0000 (13:42 +0800)]
Add a sentence in CHANGES to note SM2 support

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7160)

6 years agotest/evp_extra_test.c: fix null pointer dereference
Dr. Matthias St. Pierre [Sun, 9 Sep 2018 22:20:12 +0000 (00:20 +0200)]
test/evp_extra_test.c: fix null pointer dereference

It's actually not a real issue but caused by the absence of the default case
which does not occur in reality but which makes coverity see a code path where
pkey remains unassigned.

Reported by Coverity Scan (CID 1423323)
[extended tests]

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7158)

6 years agocrypto/rsa/rsa_pss.c: silence coverity warning
Dr. Matthias St. Pierre [Sun, 9 Sep 2018 14:33:12 +0000 (16:33 +0200)]
crypto/rsa/rsa_pss.c: silence coverity warning

Reported by Coverity Scan (CID 1439138)
[extended tests]

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7156)

6 years agotest/dhtest.c: fix resource leak
Dr. Matthias St. Pierre [Sun, 9 Sep 2018 14:19:19 +0000 (16:19 +0200)]
test/dhtest.c: fix resource leak

Reported by Coverity Scan (CID 1439136)
[extended tests]

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7155)

6 years agoASN.1 DER: Make INT32 / INT64 types read badly encoded LONG zeroes
Richard Levitte [Thu, 6 Sep 2018 20:09:11 +0000 (22:09 +0200)]
ASN.1 DER: Make INT32 / INT64 types read badly encoded LONG zeroes

The deprecated ASN.1 type LONG / ZLONG (incorrectly) produced zero
length INTEGER encoding for zeroes.  For the sake of backward
compatibility, we allow those to be read without fault when using the
replacement types INT32 / UINT32 / INT64 / UINT64.

Fixes #7134

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7144)

6 years agoTESTS: add test of decoding of invalid zero length ASN.1 INTEGER zero
Richard Levitte [Sat, 8 Sep 2018 08:09:32 +0000 (10:09 +0200)]
TESTS: add test of decoding of invalid zero length ASN.1 INTEGER zero

Confirms #7134

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7153)

6 years agoSipHash: add separate setter for the hash size
Richard Levitte [Thu, 6 Sep 2018 20:52:38 +0000 (22:52 +0200)]
SipHash: add separate setter for the hash size

This was originally part of SipHash_Init.  However, there are cases
where there isn't any key material to initialize from when setting the
hash size, and we do allow doing so with a EVP_PKEY control.  The
solution is to provide a separate hash_size setter and to use it in
the corresponding EVP_PKEY_METHOD.

Fixes #7143

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7145)

6 years agoTESTS: add SipHash tests with digestsize controls
Richard Levitte [Sat, 8 Sep 2018 21:19:39 +0000 (23:19 +0200)]
TESTS: add SipHash tests with digestsize controls

Confirms #7143

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7154)

6 years agoSipHash: make it possible to control the hash size through string controls
Richard Levitte [Sat, 8 Sep 2018 21:19:06 +0000 (23:19 +0200)]
SipHash: make it possible to control the hash size through string controls

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7154)

6 years agotest/evp_test.c: make it possible to use controls with MAC tests
Richard Levitte [Sat, 8 Sep 2018 21:16:55 +0000 (23:16 +0200)]
test/evp_test.c: make it possible to use controls with MAC tests

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7154)

6 years agoDo not reset SNI data in SSL_do_handshake()
Matt Caswell [Fri, 7 Sep 2018 14:17:34 +0000 (15:17 +0100)]
Do not reset SNI data in SSL_do_handshake()

PR #3783 introduce coded to reset the server side SNI state in
SSL_do_handshake() to ensure any erroneous config time SNI changes are
cleared. Unfortunately SSL_do_handshake() can be called mid-handshake
multiple times so this is the wrong place to do this and can mean that
any SNI data is cleared later on in the handshake too.

Therefore move the code to a more appropriate place.

Fixes #7014

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/7149)

6 years agoSimplify SSL_get_servername() to avoid session references
Ben Kaduk [Tue, 4 Sep 2018 17:30:00 +0000 (12:30 -0500)]
Simplify SSL_get_servername() to avoid session references

Ideally, SSL_get_servername() would do exactly as it is documented
and return exactly what the client sent (i.e., what we currently
are stashing in the SSL's ext.hostname), without needing to refer
to an SSL_SESSION object.  For historical reasons, including the
parsed SNI value from the ClientHello originally being stored in the
SSL_SESSION's ext.hostname field, we have had references to the
SSL_SESSION in this function.  We cannot fully excise them due to
the interaction between user-supplied callbacks and TLS 1.2 resumption
flows, where we call all callbacks but the client did not supply an
SNI value.  Existing callbacks expect to receive a valid SNI value
in this case, so we must fake one up from the resumed session in
order to avoid breakage.

Otherwise, greatly simplify the implementation and just return the
value in the SSL, as sent by the client.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7115)

6 years agoRestore historical SSL_get_servername() behavior
Ben Kaduk [Tue, 4 Sep 2018 16:44:07 +0000 (11:44 -0500)]
Restore historical SSL_get_servername() behavior

Commit 1c4aa31d79821dee9be98e915159d52cc30d8403 modified the state machine
to clean up stale ext.hostname values from SSL objects in the case when
SNI was not negotiated for the current handshake.  This is natural from
the TLS perspective, since this information is an extension that the client
offered but we ignored, and since we ignored it we do not need to keep it
around for anything else.

However, as documented in https://github.com/openssl/openssl/issues/7014 ,
there appear to be some deployed code that relies on retrieving such an
ignored SNI value from the client, after the handshake has completed.
Because the 1.1.1 release is on a stable branch and should preserve the
published ABI, restore the historical behavior by retaining the ext.hostname
value sent by the client, in the SSL structure, for subsequent retrieval.

[extended tests]

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7115)

6 years agoEnsure certificate callbacks work correctly in TLSv1.3
Matt Caswell [Thu, 6 Sep 2018 14:53:25 +0000 (15:53 +0100)]
Ensure certificate callbacks work correctly in TLSv1.3

The is_tls13_capable() function should not return 0 if no certificates
are configured directly because a certificate callback is present.

Fixes #7140

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7141)

6 years agoRemove a reference to SSL_force_post_handshake_auth()
Matt Caswell [Thu, 6 Sep 2018 14:21:42 +0000 (15:21 +0100)]
Remove a reference to SSL_force_post_handshake_auth()

That function was removed in favour of SSL_set_post_handshake_auth().
Update the docs accordingly.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7139)

6 years agoTest that we can handle a PHA CertificateRequest after we sent close_notify
Matt Caswell [Thu, 6 Sep 2018 11:06:24 +0000 (12:06 +0100)]
Test that we can handle a PHA CertificateRequest after we sent close_notify

Even though we already sent close_notify the server may not have recieved
it yet and could issue a CertificateRequest to us. Since we've already
sent close_notify we can't send any reasonable response so we just ignore
it.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7114)

6 years agoTest that we can process a KeyUpdate received after we sent close_notify
Kurt Roeckx [Tue, 4 Sep 2018 12:39:41 +0000 (13:39 +0100)]
Test that we can process a KeyUpdate received after we sent close_notify

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7114)

6 years agoProcess KeyUpdate and NewSessionTicket messages after a close_notify
Matt Caswell [Tue, 4 Sep 2018 12:36:55 +0000 (13:36 +0100)]
Process KeyUpdate and NewSessionTicket messages after a close_notify

If we've sent a close_notify then we are restricted about what we can do
in response to handshake messages that we receive. However we can sensibly
process NewSessionTicket messages. We can also process a KeyUpdate message
as long as we also ignore any request for us to update our sending keys.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7114)

6 years agoAdd missing SM2err and fix doc nits
Paul Yang [Thu, 6 Sep 2018 02:36:11 +0000 (10:36 +0800)]
Add missing SM2err and fix doc nits

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoAllow EVP_MD_CTX_set_pkey_ctx to accept NULL pctx
Paul Yang [Wed, 5 Sep 2018 14:01:33 +0000 (22:01 +0800)]
Allow EVP_MD_CTX_set_pkey_ctx to accept NULL pctx

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoAdd a SM2(7) man page
Paul Yang [Wed, 5 Sep 2018 12:20:33 +0000 (20:20 +0800)]
Add a SM2(7) man page

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoUpdate document for SM2 stuffs
Paul Yang [Wed, 5 Sep 2018 07:19:17 +0000 (15:19 +0800)]
Update document for SM2 stuffs

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoAdd test case for SM2 evp verification
Jack Lloyd [Tue, 4 Sep 2018 15:25:29 +0000 (23:25 +0800)]
Add test case for SM2 evp verification

This test case is originally submitted in #6757, by Jack Lloyd. The test
case has been modified to use the a different method to set the ID when
computing the Z hash of SM2 signature.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoSupport setting SM2 ID
Paul Yang [Tue, 4 Sep 2018 09:21:10 +0000 (17:21 +0800)]
Support setting SM2 ID

zero-length ID is allowed, but it's not allowed to skip the ID.

Fixes: #6534

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoMake SM2 ID stick to specification
Paul Yang [Mon, 3 Sep 2018 17:24:55 +0000 (01:24 +0800)]
Make SM2 ID stick to specification

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoSupport pmeth->digest_custom
Paul Yang [Mon, 3 Sep 2018 16:51:04 +0000 (00:51 +0800)]
Support pmeth->digest_custom

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoIntroduce EVP_MD_CTX_set_pkey_ctx
Paul Yang [Mon, 3 Sep 2018 15:56:41 +0000 (23:56 +0800)]
Introduce EVP_MD_CTX_set_pkey_ctx

Thus users can use this function to set customized EVP_PKEY_CTX to
EVP_MD_CTX structure.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agoRemove unnecessary sm2_za.c
Paul Yang [Mon, 3 Sep 2018 14:08:17 +0000 (22:08 +0800)]
Remove unnecessary sm2_za.c

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)

6 years agofuzz/driver.c: appease -Wmissing-prototypes
Patrick Steuer [Thu, 6 Sep 2018 13:51:43 +0000 (15:51 +0200)]
fuzz/driver.c: appease -Wmissing-prototypes

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7138)

6 years agoSupport EdDSA in apps/speed
Paul Yang [Fri, 7 Sep 2018 06:39:19 +0000 (14:39 +0800)]
Support EdDSA in apps/speed

This addresses issue #6922.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7073)

6 years agoAvoid SEGV when giving X509_sign a NULL private key.
Pauli [Thu, 6 Sep 2018 23:04:59 +0000 (09:04 +1000)]
Avoid SEGV when giving X509_sign a NULL private key.

Put a NULL check back in to avoid dereferencing the NULL pointer.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7146)

6 years agoRSA padding Zeroization fixes
Shane Lontis [Mon, 3 Sep 2018 01:39:50 +0000 (11:39 +1000)]
RSA padding Zeroization fixes

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7090)

6 years agoKey zeroization fix for EVP_SealInit + added simple test
Shane Lontis [Wed, 5 Sep 2018 22:34:45 +0000 (08:34 +1000)]
Key zeroization fix for EVP_SealInit + added simple test

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7105)

6 years agoHarmonize the error handling codepath
Nicola Tuveri [Wed, 5 Sep 2018 09:08:12 +0000 (12:08 +0300)]
Harmonize the error handling codepath

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7121)

6 years agoFix segfault in RSA_free() (and DSA/DH/EC_KEY)
Nicola Tuveri [Wed, 5 Sep 2018 08:58:55 +0000 (11:58 +0300)]
Fix segfault in RSA_free() (and DSA/DH/EC_KEY)

`RSA_free()` and friends are called in case of error from
`RSA_new_method(ENGINE *e)` (or the respective equivalent functions).

For the rest of the description I'll talk about `RSA_*`, but the same
applies for the equivalent `DSA_free()`, `DH_free()`, `EC_KEY_free()`.

If `RSA_new_method()` fails because the engine does not implement the
required method, when `RSA_free(RSA *r)` is called,
`r->meth == NULL` and a segfault happens while checking if
`r->meth->finish` is defined.

This commit fixes this issue by ensuring that `r->meth` is not NULL
before dereferencing it to check for `r->meth->finish`.

Fixes #7102 .

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7121)

6 years agoNew openssl subject parser hard to debug
Eric Curtin [Mon, 3 Sep 2018 14:23:37 +0000 (15:23 +0100)]
New openssl subject parser hard to debug

-subj 'subject=C = US, ST = A, L = root, O = Hewlett Packard Enterprise Company, OU = Remote Device Access, CN = Hewlett Packard Enterprise Remote Device Access Test Local CA, emailAddress = rda@hpe.com'
was a valid subject in openssl 1.0. Error received in 1.1 is:

problems making Certificate Request

Not very informative, I only figured this out because I compiled the
code and added logging.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7098)

6 years agohkdf zeroization fix
Shane Lontis [Tue, 4 Sep 2018 04:01:37 +0000 (14:01 +1000)]
hkdf zeroization fix

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7106)

6 years agokey zeroisation fix for p12
Shane Lontis [Tue, 4 Sep 2018 05:00:21 +0000 (15:00 +1000)]
key zeroisation fix for p12

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7109)

6 years agokey zeroisation for pvkfmt now done on all branch paths
Shane Lontis [Tue, 4 Sep 2018 04:31:11 +0000 (14:31 +1000)]
key zeroisation for pvkfmt now done on all branch paths

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7107)

6 years agokey zeroization fix for a branch path of tls13_final_finish_mac
Shane Lontis [Tue, 4 Sep 2018 05:12:13 +0000 (15:12 +1000)]
key zeroization fix for a branch path of tls13_final_finish_mac

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7110)

6 years agoopenssl req: don't try to report bits
Richard Levitte [Mon, 3 Sep 2018 11:17:03 +0000 (13:17 +0200)]
openssl req: don't try to report bits

With the introduction of -pkeyopt, the number of bits may change
without |newkey| being updated.  Unfortunately, there is no API to
retrieve the information from a EVP_PKEY_CTX either, so chances are
that we report incorrect information.  For the moment, it's better not
to try to report the number of bits at all.

Fixes #7086

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7096)

6 years agoClarify the return value of SSL_client_version()
Matt Caswell [Mon, 3 Sep 2018 10:57:33 +0000 (11:57 +0100)]
Clarify the return value of SSL_client_version()

The SSL_client_version() function returns the value held in the
legacy_version field of the ClientHello. This is never greater than
TLSv1.2, even if TLSv1.3 later gets negotiated.

Fixes #7079

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7095)

6 years agoAdd a test for RSA key exchange with both RSA and RSA-PSS certs
Matt Caswell [Mon, 3 Sep 2018 15:29:35 +0000 (16:29 +0100)]
Add a test for RSA key exchange with both RSA and RSA-PSS certs

Check that we use an RSA certificate if an RSA key exchange ciphersuite
is being used and we have both RSA and RSA-PSS certificates configured.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7099)

6 years agoDon't use an RSA-PSS cert for RSA key exchange
Matt Caswell [Mon, 3 Sep 2018 15:12:34 +0000 (16:12 +0100)]
Don't use an RSA-PSS cert for RSA key exchange

If we have selected a ciphersuite using RSA key exchange then we must
not attempt to use an RSA-PSS cert for that.

Fixes #7059

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7099)

6 years agoTest creation of tickets when using a TLSv1.3 PSK
Matt Caswell [Mon, 27 Aug 2018 00:39:00 +0000 (01:39 +0100)]
Test creation of tickets when using a TLSv1.3 PSK

Add a test to check that we create the correct number of tickets after a
TLSv1.3 PSK.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7097)

6 years agoSend a NewSessionTicket after using an external PSK
Matt Caswell [Fri, 24 Aug 2018 15:16:28 +0000 (16:16 +0100)]
Send a NewSessionTicket after using an external PSK

Treat a connection using an external PSK like we would a resumption and
send a single NewSessionTicket afterwards.

Fixes #6941

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7097)

6 years agoClarify the EVP_DigestSignInit docs
Matt Caswell [Thu, 23 Aug 2018 10:37:22 +0000 (11:37 +0100)]
Clarify the EVP_DigestSignInit docs

They did not make it clear how the memory management works for the |pctx|
parameter.

Fixes #7037

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7042)

6 years agoIgnore EPIPE when sending NewSessionTickets in TLSv1.3
Matt Caswell [Mon, 13 Aug 2018 19:18:32 +0000 (20:18 +0100)]
Ignore EPIPE when sending NewSessionTickets in TLSv1.3

If a client sends data to a server and then immediately closes without
waiting to read the NewSessionTickets then the server can receive EPIPE
when trying to write the tickets and never gets the opportunity to read
the data that was sent. Therefore we ignore EPIPE when writing out the
tickets in TLSv1.3

Fixes #6904

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6944)

6 years agoFix example in crl(1) man page
Jakub Wilk [Mon, 3 Sep 2018 09:09:51 +0000 (11:09 +0200)]
Fix example in crl(1) man page

The default input format is PEM, so explicit "-inform DER" is needed to
read DER-encoded CRL.

CLA: trivial

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7094)

6 years agoFixed a comment that referenced the wrong method
Alex Gaynor [Mon, 3 Sep 2018 17:27:18 +0000 (13:27 -0400)]
Fixed a comment that referenced the wrong method

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7100)

6 years agoFix HMAC SHA3-224 and HMAC SHA3-256.
Pauli [Wed, 15 Aug 2018 22:54:35 +0000 (08:54 +1000)]
Fix HMAC SHA3-224 and HMAC SHA3-256.

Added NIST test cases for these two as well.

Additionally deprecate the public definiton of HMAC_MAX_MD_CBLOCK in 1.2.0.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6972)

6 years agodemos/evp: add make clean
Paulo Flabiano Smorigo [Wed, 29 Aug 2018 14:00:44 +0000 (11:00 -0300)]
demos/evp: add make clean

Add make clean for evp demos and remove whitespace from a line.

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7072)

6 years agoMake OBJ_NAME case insensitive.
Pauli [Mon, 3 Sep 2018 21:35:45 +0000 (07:35 +1000)]
Make OBJ_NAME case insensitive.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7089)

6 years agohmac_init cleanup and fix key zeroization issue
Shane Lontis [Mon, 3 Sep 2018 04:15:13 +0000 (14:15 +1000)]
hmac_init cleanup and fix key zeroization issue

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7092)

6 years ago[test] throw error from wrapper function instead of an EC_METHOD specific one
Billy Brumley [Wed, 22 Aug 2018 09:27:34 +0000 (12:27 +0300)]
[test] throw error from wrapper function instead of an EC_METHOD specific one

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7028)

6 years ago[test] ECC: make sure negative tests pass for the right reasons
Billy Brumley [Wed, 22 Aug 2018 06:50:43 +0000 (09:50 +0300)]
[test] ECC: make sure negative tests pass for the right reasons

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7028)

6 years agoFix the comment of PEM_read_bio_ex
wzhang [Wed, 8 Aug 2018 08:04:18 +0000 (01:04 -0700)]
Fix the comment of PEM_read_bio_ex

Add one more unit test case

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/6892)

6 years agoRename SSL[_CTX]_add1_CA_list -> SSL[_CTX]_add1_to_CA_list
Richard Levitte [Mon, 13 Aug 2018 05:11:47 +0000 (07:11 +0200)]
Rename SSL[_CTX]_add1_CA_list -> SSL[_CTX]_add1_to_CA_list

They add a single item, so the names give a false impression of what
they do, making them hard to remember.  Better to give them a somewhat
better name.

Fixes #6930

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6931)

6 years agoadd docs for OCSP_resp_get0_signature
Paul Kehrer [Sat, 1 Sep 2018 14:50:28 +0000 (10:50 -0400)]
add docs for OCSP_resp_get0_signature

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7082)

6 years agoadd getter for tbsResponseData and signatureAlgorithm on OCSP_BASICRESP
Paul Kehrer [Sat, 1 Sep 2018 04:05:55 +0000 (00:05 -0400)]
add getter for tbsResponseData and signatureAlgorithm on OCSP_BASICRESP

fixes #7081

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7082)

6 years agoCheck the return from BN_sub() in BN_X931_generate_Xpq().
Pauli [Sun, 2 Sep 2018 21:37:38 +0000 (07:37 +1000)]
Check the return from BN_sub() in BN_X931_generate_Xpq().

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7088)

6 years agoCheck for a failure return from EVP_MD_CTX_new() in OCSP_basic_sign().
Pauli [Sun, 2 Sep 2018 21:29:45 +0000 (07:29 +1000)]
Check for a failure return from EVP_MD_CTX_new() in OCSP_basic_sign().

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7087)

6 years agoRemove redundant ASN1_INTEGER_set call
Eric Brown [Thu, 16 Aug 2018 15:34:39 +0000 (08:34 -0700)]
Remove redundant ASN1_INTEGER_set call

This trivial patch removes a duplicated call to ASN1_INTEGER_set.

Fixes Issue #6977

Signed-off-by: Eric Brown <browne@vmware.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6984)

6 years agoAdd a note in the docs about sharing PSKs between TLSv1.2 and TLSv1.3
Matt Caswell [Thu, 23 Aug 2018 13:37:01 +0000 (14:37 +0100)]
Add a note in the docs about sharing PSKs between TLSv1.2 and TLSv1.3

Fixes #6490

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7044)

6 years agoFix ssl/t1_trce.c to parse certificate chains
Erik Forsberg [Sun, 19 Aug 2018 17:24:44 +0000 (10:24 -0700)]
Fix ssl/t1_trce.c to parse certificate chains

Fixes #6994

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7009)

6 years agoTLSv1.3 related changes to man pages
Hubert Kario [Sat, 1 Sep 2018 00:40:51 +0000 (08:40 +0800)]
TLSv1.3 related changes to man pages

Add or update the documentation of the different man pages in relation to TLSv1.3 behaviour.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/6939)

6 years agoRevert ".travis.yml: omit linux-ppc64le target."
Andy Polyakov [Tue, 28 Aug 2018 20:06:26 +0000 (22:06 +0200)]
Revert ".travis.yml: omit linux-ppc64le target."

IBM POWER Open Source Ecosystem division asserts commitment to providing
more reliable service. GH#7016.

This reverts commit 275bfc56a6c4efa7e80c8cbb11fda0c3f9be818d.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
6 years agoFree SSL object on an error path
Matt Caswell [Mon, 27 Aug 2018 14:04:28 +0000 (15:04 +0100)]
Free SSL object on an error path

Thanks to @fangang190 for reporting this

Fixes #7061

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7065)

6 years agoFix a mem leak on error in the PSK code
Matt Caswell [Mon, 27 Aug 2018 13:52:09 +0000 (14:52 +0100)]
Fix a mem leak on error in the PSK code

Thanks to @fangang190 for reporting this issue.

Fixes #7060

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7065)

6 years agofix out-of-bounds write in sm2_crypt.c
ymlbright [Wed, 22 Aug 2018 03:22:11 +0000 (11:22 +0800)]
fix out-of-bounds write in sm2_crypt.c

asn1_encode has two form length octets: short form(1 byte), long form(1+n byte).

CLA: Trivial

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7027)

6 years agox509v3/v3_purp.c: refine lock-free check in x509v3_cache_extensions.
Andy Polyakov [Fri, 17 Aug 2018 10:30:36 +0000 (12:30 +0200)]
x509v3/v3_purp.c: refine lock-free check in x509v3_cache_extensions.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6996)

6 years agointernal/tsan_assist.h: add tsan_ld_acq and tsan_st_rel.
Andy Polyakov [Fri, 17 Aug 2018 10:13:01 +0000 (12:13 +0200)]
internal/tsan_assist.h: add tsan_ld_acq and tsan_st_rel.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6996)

6 years agoConfigurations/unix-Makefile.tmpl: address find portability issue.
Andy Polyakov [Sat, 18 Aug 2018 15:45:08 +0000 (17:45 +0200)]
Configurations/unix-Makefile.tmpl: address find portability issue.

-path is non-portable extension, fortunately it's possible to express
.git subdirectory exclusion with -prune.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7004)

6 years agoAdd semicolon at the end of the function prototypes
Paul Yang [Fri, 24 Aug 2018 12:38:04 +0000 (20:38 +0800)]
Add semicolon at the end of the function prototypes

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7041)

6 years agoDo not ignore EVP_PKEY_print_public/EVP_PKEY_print_private return values
Dmitry Belyavskiy [Sat, 18 Aug 2018 16:43:23 +0000 (19:43 +0300)]
Do not ignore EVP_PKEY_print_public/EVP_PKEY_print_private return values

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7007)

6 years agobn/bn_lib.c: conceal even memmory access pattern in bn2binpad.
Andy Polyakov [Wed, 15 Aug 2018 13:46:35 +0000 (15:46 +0200)]
bn/bn_lib.c: conceal even memmory access pattern in bn2binpad.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6915)