Commit graph

10367 commits

Author SHA1 Message Date
Matt Caswell
df2cb82ae3 Ensure bn_cmp_words can handle the case where n == 0
Thanks to David Benjamin who reported this, performed the analysis and
suggested the patch. I have incorporated some of his analysis in the
comments below.

This issue can cause an out-of-bounds read. It is believed that this was
not reachable until the recent "fixed top" changes. Analysis has so far
only identified one code path that can encounter this - although it is
possible that others may be found. The one code path only impacts 1.0.2 in
certain builds. The fuzzer found a path in RSA where iqmp is too large. If
the input is all zeros, the RSA CRT logic will multiply a padded zero by
iqmp. Two mitigating factors:

- Private keys which trip this are invalid (iqmp is not reduced mod p).
Only systems which take untrusted private keys care.
- In OpenSSL 1.1.x, there is a check which rejects the oversize iqmp,
so the bug is only reproducible in 1.0.2 so far.

Fortunately, the bug appears to be relatively harmless. The consequences of
bn_cmp_word's misbehavior are:

- OpenSSL may crash if the buffers are page-aligned and the previous page is
non-existent.
- OpenSSL will incorrectly treat two BN_ULONG buffers as not equal when they
are equal.
- Side channel concerns.

The first is indeed a concern and is a DoS bug. The second is fine in this
context. bn_cmp_word and bn_cmp_part_words are used to compute abs(a0 - a1)
in Karatsuba. If a0 = a1, it does not matter whether we use a0 - a1 or
a1 - a0. The third would be worth thinking about, but it is overshadowed
by the entire Karatsuba implementation not being constant time.

Due to the difficulty of tripping this and the low impact no CVE is felt
necessary for this issue.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8326)

(cherry picked from commit 576129cd72)
2019-02-25 16:32:23 +00:00
Nicola Tuveri
e2e69dce15 Clear BN_FLG_CONSTTIME on BN_CTX_get()
(cherry picked from commit c8147d37cc)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8253)
2019-02-20 20:28:51 +02:00
Billy Brumley
48e82c8e22 SCA hardening for mod. field inversion in EC_GROUP
This commit adds a dedicated function in `EC_METHOD` to access a modular
field inversion implementation suitable for the specifics of the
implemented curve, featuring SCA countermeasures.

The new pointer is defined as:
`int (*field_inv)(const EC_GROUP*, BIGNUM *r, const BIGNUM *a, BN_CTX*)`
and computes the multiplicative inverse of `a` in the underlying field,
storing the result in `r`.

Three implementations are included, each including specific SCA
countermeasures:
  - `ec_GFp_simple_field_inv()`, featuring SCA hardening through
    blinding.
  - `ec_GFp_mont_field_inv()`, featuring SCA hardening through Fermat's
    Little Theorem (FLT) inversion.
  - `ec_GF2m_simple_field_inv()`, that uses `BN_GF2m_mod_inv()` which
    already features SCA hardening through blinding.

From a security point of view, this also helps addressing a leakage
previously affecting conversions from projective to affine coordinates.

This commit also adds a new error reason code (i.e.,
`EC_R_CANNOT_INVERT`) to improve consistency between the three
implementations as all of them could fail for the same reason but
through different code paths resulting in inconsistent error stack
states.

Co-authored-by: Nicola Tuveri <nic.tuv@gmail.com>

(cherry picked from commit e0033efc30)

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/8262)
2019-02-20 19:54:19 +02:00
Matt Caswell
8f6567dfd7 Don't interleave handshake and other record types in TLSv1.3
In TLSv1.3 it is illegal to interleave handshake records with non handshake
records.

Fixes 

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/8191)

(cherry picked from commit 3d35e3a253)
2019-02-19 09:37:29 +00:00
Corinna Vinschen
a81cc6e8a2 cygwin: drop explicit O_TEXT
Cygwin binaries should not enforce text mode these days, just
use text mode if the underlying mount point requests it

Signed-off-by: Corinna Vinschen <vinschen@redhat.com>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8248)

(cherry picked from commit 9b57e4a1ef)
2019-02-18 21:11:53 +01:00
David Benjamin
2e82607841 Check for unpaired .cfi_remember_state
Reviewed-by: Richard Levitte <levitte@openssl.org>
GH: 
(cherry picked from commit e09633107b)
2019-02-17 23:41:14 +01:00
David Benjamin
2086edb799 Fix some CFI issues in x86_64 assembly
The add/double shortcut in ecp_nistz256-x86_64.pl left one instruction
point that did not unwind, and the "slow" path in AES_cbc_encrypt was
not annotated correctly. For the latter, add
.cfi_{remember,restore}_state support to perlasm.

Next, fill in a bunch of functions that are missing no-op .cfi_startproc
and .cfi_endproc blocks. libunwind cannot unwind those stack frames
otherwise.

Finally, work around a bug in libunwind by not encoding rflags. (rflags
isn't a callee-saved register, so there's not much need to annotate it
anyway.)

These were found as part of ABI testing work in BoringSSL.

Reviewed-by: Richard Levitte <levitte@openssl.org>
GH: 
(cherry picked from commit c0e8e5007b)
2019-02-17 23:41:11 +01:00
Daniel DeFreez
851437094a Fix null pointer dereference in cms_RecipientInfo_kari_init
CLA: trivial

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8137)

(cherry picked from commit b754a8a159)
2019-02-13 14:30:48 +08:00
Andy Polyakov
2cf7fd698e AArch64 assembly pack: authenticate return addresses.
ARMv8.3 adds pointer authentication extension, which in this case allows
to ensure that, when offloaded to stack, return address is same at return
as at entry to the subroutine. The new instructions are nops on processors
that don't implement the extension, so that the vetification is backward
compatible.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8205)

(cherry picked from commit 9a18aae5f2)
2019-02-13 02:39:27 +01:00
Tomas Mraz
95f59d398c Allow the syntax of the .include directive to optionally have '='
If the old openssl versions not supporting the .include directive
load a config file with it, they will bail out with error.

This change allows using the .include = <filename> syntax which
is interpreted as variable assignment by the old openssl
config file parser.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8141)

(cherry picked from commit 9d5560331d)
2019-02-11 15:25:00 +01:00
Daniel DeFreez
a12b338f06 Fix null pointer dereference in ssl_module_init
CLA: Trivial

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8183)

(cherry picked from commit 758229f7d2)
2019-02-11 08:33:28 +10:00
Todd Short
3dbec21b46 Fix d2i_PublicKey() for EC keys
o2i_ECPublicKey() requires an EC_KEY structure filled with an EC_GROUP.

o2i_ECPublicKey() is called by d2i_PublicKey(). In order to fulfill the
o2i_ECPublicKey()'s requirement, d2i_PublicKey() needs to be called with
an EVP_PKEY with an EC_KEY containing an EC_GROUP.

However, the call to EVP_PKEY_set_type() frees any existing key structure
inside the EVP_PKEY, thus freeing the EC_KEY with the EC_GROUP that
o2i_ECPublicKey() needs.

This means you can't d2i_PublicKey() for an EC key...

The fix is to check to see if the type is already set appropriately, and
if so, not call EVP_PKEY_set_type().

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8168)

(cherry picked from commit 2aa2beb06c)
2019-02-08 10:04:13 +00:00
Sam Roberts
3b09585bd6 Remove unnecessary trailing whitespace
Trim trailing whitespace. It doesn't match OpenSSL coding standards,
AFAICT, and it can cause problems with git tooling.

Trailing whitespace remains in test data and external source.

Backport-of: https://github.com/openssl/openssl/pull/8092

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/8134)
2019-02-05 16:29:17 +01:00
Bernd Edlinger
1b66fc87da Fix a crash in reuse of i2d_X509_PUBKEY
If the second PUBKEY is malformed there is use after free.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8122)

(cherry picked from commit 5dc40a83c7)
2019-01-31 19:27:37 +01:00
Bernd Edlinger
df3b7b99a8 Fixed d2i_X509 in-place not re-hashing the ex_flags
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8116)

(cherry picked from commit 5364902250)
2019-01-31 19:20:03 +01:00
Bernd Edlinger
7193394aee Fix a memory leak with di2_X509_CRL reuse
Additionally avoid undefined behavior with
in-place memcpy in X509_CRL_digest.

Fixes 

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8112)

(cherry picked from commit a727627922)
2019-01-31 19:14:17 +01:00
Matt Caswell
9ed9875f05 Don't leak memory from ERR_add_error_vdata()
If the call the ERR_set_error_data() in ERR_add_error_vdata() fails then
a mem leak can occur. This commit checks that we successfully added the
error data, and if not frees the buffer.

Fixes 

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/8105)

(cherry picked from commit fa6b1ee111)
2019-01-29 11:12:26 +00:00
David Asraf
eae1c647df crypto/bn: fix return value in BN_generate_prime
When the ret parameter is NULL the generated prime
is in rnd variable and not in ret.

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/8076)

(cherry picked from commit 3d43f9c809)
2019-01-27 12:18:50 +00:00
Klotz, Tobias
b6d41ff733 Cleanup vxworks support to be able to compile for VxWorks 7
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7569)

(cherry picked from commit 5c8b7b4caa)
2019-01-24 17:58:27 +01:00
Bernd Edlinger
b6769a3865 PPC: Try out if mftb works before using it
If this fails try out if mfspr268 works.

Use OPENSSL_ppccap=0x20 for enabling mftb,
OPENSSL_ppccap=0x40 for enabling mfspr268,
and OPENSSL_ppccap=0 for enabling neither.

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8043)

(cherry picked from commit c8f370485c)
2019-01-21 15:45:53 +01:00
Corey Minyard
492f70645c Fix a memory leak in the mem bio
If you use a BIO and set up your own buffer that is not freed, the
memory bio will leak the BIO_BUF_MEM object it allocates.

The trouble is that the BIO_BUF_MEM is allocated and kept around,
but it is not freed if BIO_NOCLOSE is set.

The freeing of BIO_BUF_MEM was fairly confusing, simplify things
so mem_buf_free only frees the memory buffer and free the BIO_BUF_MEM
in mem_free(), where it should be done.

Alse add a test for a leak in the memory bio
Setting a memory buffer caused a leak.

Signed-off-by: Corey Minyard <minyard@acm.org>

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8051)

(cherry picked from commit c6048af23c)
2019-01-21 17:50:04 +10:00
David Benjamin
781378daca Reduce inputs before the RSAZ code.
The RSAZ code requires the input be fully-reduced. To be consistent with the
other codepaths, move the BN_nnmod logic before the RSAZ check.

This fixes an oft-reported fuzzer bug.
https://github.com/google/oss-fuzz/issues/1761

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7187)

(cherry picked from commit 3afd537a3c)
2019-01-17 08:19:24 +10:00
Richard Levitte
b36b1632e2 crypto/armcap.c, crypto/ppccap.c: stricter use of getauxval()
Having a weak getauxval() and only depending on GNU C without looking
at the library we build against meant that it got picked up where not
really expected.

So we change this to check for the glibc version, and since we know it
exists from that version, there's no real need to make it weak.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/8028)

(cherry picked from commit 5f40dd158c)
2019-01-16 18:04:22 +01:00
Richard Levitte
6ffcd10ade crypto/uid.c: use own macro as guard rather than AT_SECURE
It turns out that AT_SECURE may be defined through other means than
our inclusion of sys/auxv.h, so to be on the safe side, we define our
own guard and use that to determine if getauxval() should be used or
not.

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7933)

(cherry picked from commit aefb980c45)
2019-01-16 06:21:32 +01:00
Matt Caswell
46c853e03a Check more return values in the SRP code
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8019)

(cherry picked from commit d63bde7827)
2019-01-15 11:35:08 +00:00
Matt Caswell
d42c356882 Check a return value in the SRP code
Spotted by OSTIF audit

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8019)

(cherry picked from commit 0a5bda639f)
2019-01-15 11:35:08 +00:00
Viktor Dukhovni
25eb9299ce More configurable crypto and ssl library initialization
1.  In addition to overriding the default application name,
    one can now also override the configuration file name
    and flags passed to CONF_modules_load_file().

2.  By default we still keep going when configuration file
    processing fails.  But, applications that want to be
    strict about initialization errors can now make explicit
    flag choices via non-null OPENSSL_INIT_SETTINGS that omit
    the CONF_MFLAGS_IGNORE_RETURN_CODES flag (which had so far
    been both undocumented and unused).

3.  In OPENSSL_init_ssl() do not request OPENSSL_INIT_LOAD_CONFIG
    if the options already include OPENSSL_INIT_NO_LOAD_CONFIG.

4.  Don't set up atexit() handlers when called with opts equal to
    OPENSSL_INIT_BASE_ONLY (this flag should only be used alone).

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7969)
2019-01-07 13:53:52 -05:00
Viktor Dukhovni
1bfd76b3af Update generator copyright year.
Some Travis builds appear to fail because generated objects get
2019 copyrights now, and the diff complains.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7969)
2019-01-07 13:53:24 -05:00
Matt Caswell
56806f432b Support _onexit() in preference to atexit() on Windows
This enables cleanup to happen on DLL unload instead of at process exit.

[extended tests]

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)
2019-01-04 20:23:16 +00:00
Matt Caswell
6b97cc6ec1 Introduce a no-pinshared option
This option prevents OpenSSL from pinning itself in memory.

Fixes 

[extended tests]

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)
2019-01-04 20:23:16 +00:00
Matt Caswell
c2b3db2454 Implement OPENSSL_INIT_NO_ATEXIT
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)
2019-01-04 20:23:16 +00:00
Matt Caswell
f725fe5b4b Fix a RUN_ONCE bug
We have a number of instances where there are multiple "init" functions for
a single CRYPTO_ONCE variable, e.g. to load config automatically or to not
load config automatically. Unfortunately the RUN_ONCE mechanism was not
correctly giving the right return value where an alternative init function
was being used.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)
2019-01-04 20:23:16 +00:00
Matt Caswell
42c17f3a10 make update
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7973)
2019-01-03 09:26:34 +00:00
Bernd Edlinger
c25ae0fff7 Fix cert with rsa instead of rsaEncryption as public key algorithm
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7962)

(cherry picked from commit 1f483a69bc)
2018-12-31 09:51:04 +01:00
Jung-uk Kim
2988abe069 Do not complain when /dev/crypto does not exist.
FreeBSD does not enable cryptodev(4) by default.  OpenBSD disabled support
for /dev/crypto by default from 4.9 and removed it from 5.7.  Now the engine
is properly enabled by default on BSD platforms (see ), it continuously
complains:

Could not open /dev/crypto: No such file or directory

Hide the nagging error message behind ENGINE_DEVCRYPTO_DEBUG.

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/7896)

(cherry picked from commit c79a022da9)
2018-12-23 08:32:43 +01:00
Shreya Bhandare
92791b972c EVP_PKEY_size declared to take a const parameter
CLA: trivial
Function EVP_PKEY_size has been modified to take a const parameter

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7892)

(cherry picked from commit 47ec2367eb)
2018-12-23 00:27:23 +01:00
FdaSilvaYY
7d550561e3 Coverity fix in some crypto/asn1 code
Call to i2d method returns an int value.

Fix:
CID 1338183 ( of 1): Improper use of negative value (NEGATIVE_RETURNS)
CID 1371691 ( of 1): Improper use of negative value (NEGATIVE_RETURNS)
CID 1371692 ( of 1): Improper use of negative value (NEGATIVE_RETURNS)

[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7359)

(cherry picked from commit da84249be6)
2018-12-22 18:13:56 +01:00
Ken Goldman
ea7d2c5808 Admit unknown pkey types at security level 0
The check_key_level() function currently fails when the public key
cannot be extracted from the certificate because its algorithm is not
supported.  However, the public key is not needed for the last
certificate in the chain.

This change moves the check for level 0 before the check for a
non-NULL public key.

For background, this is the TPM 1.2 endorsement key certificate.
I.e., this is a real application with millions of certificates issued.
The key is an RSA-2048 key.

The TCG (for a while) specified

     Public Key Algorithm: rsaesOaep

rather than the commonly used

     Public Key Algorithm: rsaEncryption

because the key is an encryption key rather than a signing key.
The X509 certificate parser fails to get the public key.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7906)
2018-12-20 03:10:55 -05:00
Richard Levitte
145419423e ERR: preserve system error number in a few more places
It turns out that intialization may change the error number, so we
need to preserve the system error number in functions where
initialization is called for.
These are ERR_get_state() and err_shelve_state()

Fixes 

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7902)

(cherry picked from commit 91c5473035)
2018-12-14 23:17:06 +01:00
Mansour Ahmadi
faafe140a8 Add missing OPENSSL_clear_free before using ec->key
Fixes 

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7877)

(cherry picked from commit 4128136a28)
2018-12-13 10:10:02 +00:00
Mansour Ahmadi
3b16099e0c add missing check for BN_mod_inverse
Fixes 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7876)

(cherry picked from commit 55833a8de7)
2018-12-13 09:59:10 +00:00
Mansour Ahmadi
5db5edc99a fix inconsistent flen check in rsa_pk1 and rsa_oaep
Fixes 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7880)

(cherry picked from commit 4fea7005c3)
2018-12-13 09:48:50 +00:00
Matt Caswell
f807ad17f3 Disallow Ed448 signature malleability
Check that s is less than the order before attempting to verify the
signature as per RFC8032 5.2.7

Fixes 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7748)

(cherry picked from commit 08afd2f37a)
2018-12-11 11:58:40 +00:00
Eneas U de Queiroz
488521d77f eng_devcrypto: make sure digest can do copy
Digest must be able to do partial-state copy to be used.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit 16e252a01b)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
2887a5c8f9 eng_devcrypto: fix ctr mode
Make CTR mode behave like a stream cipher.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit b5015e834a)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
a19d1a1d37 eng_devcrypto: add cipher CTX copy function
The engine needs a custom cipher context copy function to open a new
/dev/crypto session.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit 6d99e23839)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
5378c582c8 eng_devcrypto: close session on cleanup, not final
Close the session in digest_cleanup instead of digest_final.  A failure
in closing the session does not mean a previous successful digest final
has failed as well.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit a67203a19d)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
68b02a8ab7 eng_devcrypto: fix copy of unitilialized digest
If the source ctx has not been initialized, don't initialize the copy
either.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit ae8183690f)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
add2ab1f28 eng_devcrypto: expand digest failure cases
Return failure when the digest_ctx is null in digest_update and
digest_final, and when md is null in digest_final.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit 4d9f996544)
2018-12-10 13:22:14 +01:00
Eneas U de Queiroz
be5cf61caa eng_devcrypto: don't leak methods tables
Call functions to prepare methods after confirming that /dev/crytpo was
sucessfully open and that the destroy function has been set.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

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/7585)

(cherry picked from commit d9d4dff5c6)
2018-12-10 13:22:14 +01:00
Matt Caswell
ef97becf52 Preserve errno on dlopen
For the same reasons as in the previous commit we must preserve errno
across dlopen calls. Some implementations (e.g. solaris) do not preserve
errno even on a successful dlopen call.

Fixes 

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7680)

(cherry picked from commit 3cb4e7dc1c)
2018-12-10 10:22:05 +00:00
Matt Caswell
99992ad220 Make sure build_SYS_str_reasons() preserves errno
This function can end up being called during ERR_get_error() if we are
initialising. ERR_get_error() must preserve errno since it gets called via
SSL_get_error(). If that function returns SSL_ERROR_SYSCALL then you are
supposed to inspect errno.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7680)

(cherry picked from commit 71b1ceffc4)
2018-12-10 10:22:05 +00:00
Richard Levitte
4bd0db1fea make update
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7852)

(cherry picked from commit f2f734d4f9)
2018-12-10 10:08:32 +01:00
Richard Levitte
fa75ee1aec Prevent calling decryption in an encryption context and vice versa
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7852)

(cherry picked from commit a8bf2f8f24)
2018-12-10 10:08:32 +01:00
Andy Polyakov
3c1b856236 err/err.c: improve err_clear_last_constant_time's portability.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7850)

(cherry picked from commit 91d0fd1c27)
2018-12-08 12:35:45 +01:00
Richard Levitte
673273c43e Make EVP_PKEY_asn1_add0() stricter about its input
It turns out that the strictness that was implemented in
EVP_PKEY_asn1_new() (see Github openssl/openssl#6880) was badly placed
for some usages, and that it's better to do this check only when the
method is getting registered.

Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7847)

(cherry picked from commit a860031621)
2018-12-07 11:59:11 +01:00
Dr. Matthias St. Pierre
9478b1a095 curve25519.c: improve formula alignment
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7750)

(cherry picked from commit 425dde5d75)
2018-12-06 20:55:00 +01:00
Dr. Matthias St. Pierre
6a1ed7a321 curve25519.c: reformat code to follow coding guidelines
Fixes 

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7750)

(cherry picked from commit 3a17b9a46e)
2018-12-06 20:54:44 +01:00
Andy Polyakov
8df98cd988 bn/bn_{div|shift}.c: introduce fixed-top interfaces.
Fixed-top interfaces tolerate zero-padded inputs and facilitate
constant-time-ness. bn_div_fixed_top tolerates zero-padded dividend,
but not divisor. It's argued that divisor's length is public even
when value is secret.

[extended tests]

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit 3a4a88f436)
2018-12-05 10:38:22 +00:00
Andy Polyakov
a7e8ab41fd bn/bn_div.c: make conditional addition unconditional
and add template for constant-time bn_div_3_words.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit 3da2e9c4ee)
2018-12-05 10:38:22 +00:00
Andy Polyakov
9b2a219cae Configurations/10-main.conf: remove MIPS bn_div_3_words.
It's being replaced with constant-time alternative.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit b34446cca2)
2018-12-05 10:38:22 +00:00
Matt Caswell
f3243f2229 Disallow Ed25519 signature maleability
Check that s is less than the order before attempting to verify the
signature as per RFC8032 5.1.7

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7697)

(cherry picked from commit 0ac8f35c04)
2018-12-03 14:25:20 +00:00
Andy Polyakov
f1d91b8970 rsa/rsa_ssl.c: make RSA_padding_check_SSLv23 constant-time.
Copy of RSA_padding_check_PKCS1_type_2 with a twist that rejects padding
if nul delimiter is preceded by 8 consecutive 0x03 bytes.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 603221407d)
2018-11-30 12:51:58 +00:00
Andy Polyakov
f5ebe54c00 rsa/rsa_oaep.c: remove memcpy calls from RSA_padding_check_PKCS1_OAEP.
And make RSAErr call unconditional.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 75f5e944be)
2018-11-30 12:51:58 +00:00
Andy Polyakov
db1b63f45c rsa/rsa_pk1.c: remove memcpy calls from RSA_padding_check_PKCS1_type_2.
And make RSAErr call unconditional.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit e875b0cf2f)
2018-11-30 12:51:58 +00:00
Andy Polyakov
382448f337 rsa/rsa_ossl.c: make RSAerr call in rsa_ossl_private_decrypt unconditional.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 89072e0c2a)
2018-11-30 12:51:58 +00:00
Andy Polyakov
d2cd28b99e err/err.c: add err_clear_last_constant_time.
Expected usage pattern is to unconditionally set error and then
wipe it if there was no actual error.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit f658a3b64d)
2018-11-30 12:51:58 +00:00
Billy Brumley
37b07c68ef Clean up BN_consttime_swap.
Updated "condition" logic lifted from Theo Buehler's LibreSSL commit 517358603b

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7619)

(cherry picked from commit 900fd8f375)
2018-11-26 17:54:08 +02:00
Richard Levitte
1119d4e7f4 VMS: fix collected error strings
It turns out that on VMS, strerror() returns messages with added
spaces at the end.

We wouldn't had noticed if it wasn't for perl trimming those spaces
off for its own sake and thereby having test/recipes/02-test_errstr.t
fail on VMS.

The safe fix is to do the same trimming ourselves.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7701)

(cherry picked from commit 9f15e5b911)
2018-11-24 17:43:30 +01:00
David Woodhouse
abaa2311ad Stop marking default digest for EC keys as mandatory
ASN1_PKEY_CTRL_DEFAULT_MD_NID is documented to return 2 for a mandatory
digest algorithm, when the key can't support any others. That isn't true
here, so return 1 instead.

Partially fixes 

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>

(cherry picked from commit eb7eb1378c)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7609)
2018-11-24 08:49:32 +02:00
Richard Levitte
cae2a7ca42 Smarter build of system error text database
We stored copies of the system error texts in a fixed line size array,
which is a huge waste.  Instead, use a static memory pool and pack all
the string in there.  The wasted space at the end, if any, gives us
some leeway for longer strings than we have measured so far.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7681)

(cherry picked from commit 2c5b6bbb67)
2018-11-23 12:35:54 +01:00
Andy Polyakov
5970d48093 rsa/rsa_ossl.c: cache MONT_CTX for public modulus earlier.
Blinding is performed more efficiently and securely if MONT_CTX for public
modulus is available by the time blinding parameter are instantiated. So
make sure it's the case.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7586)

(cherry picked from commit 2cc3f68cde)
2018-11-22 09:49:48 +00:00
Matt Caswell
7c6d372aff Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7669)
2018-11-20 13:27:36 +00:00
Andy Polyakov
7a6d71c527 sha/asm/sha512p8-ppc.pl: optimize epilogue.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7643)

(cherry picked from commit 6b956fe77b)
2018-11-16 09:26:29 +01:00
Andy Polyakov
0e2ad9593a sha/asm/sha512p8-ppc.pl: fix typo in prologue.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7643)

(cherry picked from commit 79d7fb990c)
2018-11-16 09:26:28 +01:00
Vitezslav Cizek
42acb69fd1 DSA: Check for sanity of input parameters
dsa_builtin_paramgen2 expects the L parameter to be greater than N,
otherwise the generation will get stuck in an infinite loop.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>

(cherry picked from commit 3afd38b277)

(Merged from https://github.com/openssl/openssl/pull/7493)
2018-11-14 13:07:54 +01:00
Richard Levitte
61e78e7ace Fix SipHash init order.
Setting the SipHash hash size and setting its key is done with two
independent functions...  and yet, the internals depend on both.

Unfortunately, the function to change the size wasn't adapted for the
possibility that the key was set first, with a different hash size.

This changes the hash setting function to fix the internal values
(which is easy, fortunately) according to the hash size.

evpmac.txt value for digestsize:8 is also corrected.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7613)

(cherry picked from commit 425036130d)
2018-11-12 07:16:58 +01:00
Billy Brumley
6f172154f5 [crypto/bn] swap BN_FLG_FIXED_TOP too
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7599)

(cherry picked from commit dd41956d80)
2018-11-10 04:14:11 +02:00
Bernd Edlinger
bdb8897691 Fix issues with do_rand_init/rand_cleanup_int
Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7588)

(cherry picked from commit e2d227bb4a)
2018-11-09 13:37:38 +01:00
Dr. Matthias St. Pierre
abf58ed319 rand_unix.c: open random devices on first use only
Commit c7504aeb64 (pr ) fixed a regression for applications in
chroot environments, which compensated the fact that the new OpenSSL CSPRNG
(based on the NIST DRBG) now reseeds periodically, which the previous
one didn't. Now the reseeding could fail in the chroot environment if the
DEVRANDOM devices were not present anymore and no other entropy source
(e.g. getrandom()) was available.

The solution was to keep the file handles for the DEVRANDOM devices open
by default. In fact, the fix did more than this, it opened the DEVRANDOM
devices early and unconditionally in rand_pool_init(), which had the
unwanted side effect that the devices were opened (and kept open) even
in cases when they were not used at all, for example when the getrandom()
system call was available. Due  to a bug (issue ) this even happened
when the feature was disabled by the application.

This commit removes the unconditional opening of all DEVRANDOM devices.
They will now only be opened (and kept open) on first use. In particular,
if getrandom() is available, the handles will not be opened unnecessarily.

This change does not introduce a regression for applications compiled for
libcrypto 1.1.0, because the SSLEAY RNG also seeds on first use. So in the
above constellation the CSPRNG will only be properly seeded if it is happens
before the forking and chrooting.

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7437)

(cherry picked from commit 8cfc19716c)
2018-11-08 16:41:24 +01:00
Dr. Matthias St. Pierre
c39df745b0 Test: link drbgtest statically against libcrypto
and remove duplicate rand_drbg_seedlen() implementation again.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7462)

(cherry picked from commit 1c615e4ce9)
2018-11-08 16:32:30 +01:00
Pauli
f7258489d8 Add missing RAND initialisation call.
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7587)

(cherry picked from commit ac765685d4)
2018-11-08 08:13:16 +10:00
Bernd Edlinger
294941aebb Rename the rand_drbg_st data member "pool" to "seed_pool"
... to make the intended use more clear and differentiate
it from the data member "adin_pool".

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7575)

(cherry picked from commit 31f32abb8e)
2018-11-07 15:23:39 +01:00
Bernd Edlinger
9bc987f008 Initialize reseed_gen_counter to 1, like it is done in master
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/7532)
2018-11-07 15:16:19 +01:00
Bernd Edlinger
939ef2ea11 Avoid two memory allocations in each RAND_DRBG_bytes
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/7518)
2018-11-05 22:52:24 +01:00
Bernd Edlinger
c40c1ef4f3 Fix error handling in RAND_DRBG_uninstantiate
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/7519)
2018-11-05 22:46:21 +01:00
Bernd Edlinger
ee5a79104c Fix error handling in rand_drbg_new
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/7519)
2018-11-05 22:46:20 +01:00
Bernd Edlinger
f98a893ed4 Fix error handling in RAND_DRBG_set
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/7519)
2018-11-05 22:46:20 +01:00
Richard Levitte
cd01707b7f crypto/engine/eng_devcrypto.c: ensure we don't leak resources
If engine building fails for some reason, we must make sure to close
the /dev/crypto handle.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7506)

(cherry picked from commit 681e8cacdb)
2018-11-02 20:24:08 +01:00
Richard Levitte
120fc33e29 crypto/engine/eng_devcrypto.c: open /dev/crypto only once
We opened /dev/crypto once for each session, which is quite unnecessary.
With this change, we open /dev/crypto once at engine init, and close
it on unload.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7506)

(cherry picked from commit 458c7dad9e)
2018-11-02 20:24:00 +01:00
Richard Levitte
dcbbcf083c crypto/engine/eng_devcrypto.c: new compilers are strict on prototypes
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7506)

(cherry picked from commit 28ac1bd9a9)
2018-11-02 20:23:53 +01:00
Richard Levitte
3dcca12a20 crypto/engine/eng_devcrypto.c: add digest copy
Copying an EVP_MD_CTX, including the implementation local bits, is a
necessary operation.  In this case, though, it's the same as
initializing the local bits to be "copied to".

Fixes 

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7506)

(cherry picked from commit 36af124bfb)
2018-11-02 20:23:47 +01:00
Pauli
6039651c43 Add a constant time flag to one of the bignums to avoid a timing leak.
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7549)

(cherry picked from commit 00496b6423)
2018-11-02 08:14:35 +10:00
Bernd Edlinger
faca6bfac3 Fix a race condition in drbg_add
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/7523)

(cherry picked from commit 4011bab1f8)
2018-10-30 23:28:12 +01:00
Chocobo1
189b56b206 Fix MSVC warning C4819
CLA: trivial

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7444)

(cherry picked from commit cf4eea1204)
2018-10-30 04:52:27 +01:00
Matt Caswell
070ce40be1 Reset the HKDF state between operations
Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7501)

(cherry picked from commit ca55d70be0)
2018-10-29 14:11:40 +00:00
Bernd Edlinger
6101850baf Rework and simplify resource flow in drbg_add
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/7504)

(cherry picked from commit f9e43929c4)
2018-10-29 12:31:21 +01:00
Dr. Matthias St. Pierre
c7a7ed3870 randfile.c: fix a Coverity warning
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7510)

(cherry picked from commit 040a03470c)
2018-10-28 23:39:13 +01:00
Pauli
b1d6d55ece Timing vulnerability in ECDSA signature generation (CVE-2018-0735)
Preallocate an extra limb for some of the big numbers to avoid a reallocation
that can potentially provide a side channel.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7486)

(cherry picked from commit 99540ec794)
2018-10-29 07:59:23 +10:00
Pauli
8abfe72e8c Timing vulnerability in DSA signature generation (CVE-2018-0734).
Avoid a timing attack that leaks information via a side channel that
triggers when a BN is resized.  Increasing the size of the BNs
prior to doing anything with them suppresses the attack.

Thanks due to Samuel Weiser for finding and locating this.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7486)

(cherry picked from commit a9cfb8c2aa)
2018-10-29 07:58:42 +10:00
Pauli
f1b12b8713 DSA mod inverse fix
There is a side channel attack against the division used to calculate one of
the modulo inverses in the DSA algorithm.  This change takes advantage of the
primality of the modulo and Fermat's little theorem to calculate the inverse
without leaking information.

Thanks to Samuel Weiser for finding and reporting this.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7487)

(cherry picked from commit 415c335635)
2018-10-29 06:51:55 +10:00
Dr. Matthias St. Pierre
d2953e5e7d drbg_lib: avoid NULL pointer dereference in drbg_add
Found by Coverity Scan

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7511)

(cherry picked from commit 59f90557dd)
2018-10-28 19:21:12 +01:00
Bernd Edlinger
1f98527659 Fix data race in RAND_DRBG_generate
Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7399)

(cherry picked from commit a83dc59afa)
2018-10-27 13:04:55 +02:00
Dr. Matthias St. Pierre
d597a9a877 RAND_add()/RAND_seed(): fix failure on short input or low entropy
Commit 5b4cb385c1 () introduced a bug which had the effect
that RAND_add()/RAND_seed() failed for buffer sizes less than
32 bytes. The reason was that now the added random data was used
exlusively as entropy source for reseeding. When the random input
was too short or contained not enough entropy, the DRBG failed
without querying the available entropy sources.

This commit makes drbg_add() act smarter: it checks the entropy
requirements explicitely. If the random input fails this check,
it won't be added as entropy input, but only as additional data.
More precisely, the behaviour depends on whether an os entropy
source was configured (which is the default on most os):

- If an os entropy source is avaible then we declare the buffer
  content as additional data by setting randomness to zero and
  trigger a regular   reseeding.

- If no os entropy source is available, a reseeding will fail
  inevitably. So drbg_add() uses a trick to mix the buffer contents
  into the DRBG state without forcing a reseeding: it generates a
  dummy random byte, using the buffer content as additional data.

Related-to: 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7456)

(cherry picked from commit 8817215d5c)
2018-10-27 13:03:35 +02:00
Dr. Matthias St. Pierre
35a34508ef Backport some DRBG renamings and typo fixes
In commit 8bf3665196 some renamings andd typo fixes were made
while adding back the DRBG-HMAC and DRBG-HASH implementation.
Since the commit could not be backported, a lot of unnecessary
differences between master and 1.1.1 were introduced.

These differences result in tiresome merge conflicts when
cherry-picking. To minimize these merge-conflicts, this patch
ports all 'non-feature' changes of commit 8bf3665196
(e.g., renamings of private variables, fixes of typographical
errors, comment changes) manually back to 1.1.1.

The commits a83dc59afa () and 8817215d5c ()
failed to cherry-pick previously to 1.1.1, with this patch
they both cherry-pick without conflicts.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7505)
2018-10-26 23:04:23 +02:00
Bernd Edlinger
f3f7f1a826 Fix a possible crash in rand_drbg_get_entropy
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
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/7474)

(cherry picked from commit 21311777ad)
2018-10-26 15:26:21 +02:00
Dr. Matthias St. Pierre
1d0671b81f RAND_load_file(): avoid adding small chunks to RAND_add()
Increase the load buffer size such that it exceeds the chunk
size by a comfortable amount. This is done to avoid calling
RAND_add() with a small final chunk. Instead, such a small
final chunk will be added together with the previous chunk
(unless it's the only one).

Related-to: 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7456)
2018-10-26 08:50:26 +02:00
Dr. Matthias St. Pierre
13ce86259e RAND_load_file(): return error if reseeding failed
The failure of RAND_load_file was only noticed because of the
heap corruption which was reported in  and fixed in commit
5b4cb385c1. To prevent this in the future, RAND_load_file()
now explicitly checks RAND_status() and reports an error if it
fails.

Related-to: 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7456)
2018-10-26 08:50:26 +02:00
Richard Levitte
28361a0b82 RAND: ensure INT32_MAX is defined
This value is used to set DRBG_MAX_LENGTH

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7467)

(cherry picked from commit f81b043ad8)
2018-10-23 10:56:59 +02:00
Dr. Matthias St. Pierre
ece482ff3a RAND_add(): fix heap corruption in error path
This bug was introduced by  which enhanced RAND_add() to
accept large buffer sizes. As a consequence, RAND_add() now fails
for buffer sizes less than 32 bytes (i.e. less than 256 bits).
In addition, rand_drbg_get_entropy() forgets to reset the attached
drbg->pool in the case of an error, which leads to the heap corruption.

The problem occurred with RAND_load_file(), which reads the file in
chunks of 1024 bytes each. If the size of the final chunk is less than
32 bytes, then RAND_add() fails, whence RAND_load_file() fails
silently for buffer sizes n = k * 1024 + r with r = 1,...,31.

This commit fixes the heap corruption only. The other issues will
be addressed in a separate pull request.

Thanks to Gisle Vanem for reporting this issue.

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7455)

(cherry picked from commit 5b4cb385c1)
2018-10-22 14:57:04 +02:00
Andy Polyakov
fc762e7d5c arch/async_posix.h: improve portability.
{make|swap|get|set}context are removed in POSIX.1-2008, but glibc
apparently keeps providing it.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7420)

(cherry picked from commit 9d71a24ebf)
2018-10-19 10:31:04 +02:00
Viktor Dukhovni
a190ea8ad7 Apply self-imposed path length also to root CAs
Also, some readers of the code find starting the count at 1 for EE
cert confusing (since RFC5280 counts only non-self-issued intermediate
CAs, but we also counted the leaf).  Therefore, never count the EE
cert, and adjust the path length comparison accordinly.  This may
be more clear to the reader.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit dc5831da59)
2018-10-18 00:10:04 -04:00
Viktor Dukhovni
bb6923945e Only CA certificates can be self-issued
At the bottom of https://tools.ietf.org/html/rfc5280#page-12 and
top of https://tools.ietf.org/html/rfc5280#page-13 (last paragraph
of above https://tools.ietf.org/html/rfc5280#section-3.3), we see:

   This specification covers two classes of certificates: CA
   certificates and end entity certificates.  CA certificates may be
   further divided into three classes: cross-certificates, self-issued
   certificates, and self-signed certificates.  Cross-certificates are
   CA certificates in which the issuer and subject are different
   entities.  Cross-certificates describe a trust relationship between
   the two CAs.  Self-issued certificates are CA certificates in which
   the issuer and subject are the same entity.  Self-issued certificates
   are generated to support changes in policy or operations.  Self-
   signed certificates are self-issued certificates where the digital
   signature may be verified by the public key bound into the
   certificate.  Self-signed certificates are used to convey a public
   key for use to begin certification paths.  End entity certificates
   are issued to subjects that are not authorized to issue certificates.

that the term "self-issued" is only applicable to CAs, not end-entity
certificates.  In https://tools.ietf.org/html/rfc5280#section-4.2.1.9
the description of path length constraints says:

   The pathLenConstraint field is meaningful only if the cA boolean is
   asserted and the key usage extension, if present, asserts the
   keyCertSign bit (Section 4.2.1.3).  In this case, it gives the
   maximum number of non-self-issued intermediate certificates that may
   follow this certificate in a valid certification path.  (Note: The
   last certificate in the certification path is not an intermediate
   certificate, and is not included in this limit.  Usually, the last
   certificate is an end entity certificate, but it can be a CA
   certificate.)

This makes it clear that exclusion of self-issued certificates from
the path length count applies only to some *intermediate* CA
certificates.  A leaf certificate whether it has identical issuer
and subject or whether it is a CA or not is never part of the
intermediate certificate count.  The handling of all leaf certificates
must be the same, in the case of our code to post-increment the
path count by 1, so that we ultimately reach a non-self-issued
intermediate it will be the first one (not zeroth) in the chain
of intermediates.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit ed422a2d01)
2018-10-18 00:10:03 -04:00
Antoine Salon
8710396980 EVP module documentation pass
Replace ECDH_KDF_X9_62() with internal ecdh_KDF_X9_63()

Signed-off-by: Antoine Salon <asalon@vmware.com>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7345)

(cherry picked from commit ffd89124bd)
2018-10-17 13:31:59 +03:00
Dr. Matthias St. Pierre
dbf0a49625 DRBG: fix reseeding via RAND_add()/RAND_seed() with large input
In pull request  the seeding of the DRBG via RAND_add()/RAND_seed()
was implemented by buffering the data in a random pool where it is
picked up later by the rand_drbg_get_entropy() callback. This buffer
was limited to the size of 4096 bytes.

When a larger input was added via RAND_add() or RAND_seed() to the DRBG,
the reseeding failed, but the error returned by the DRBG was ignored
by the two calling functions, which both don't return an error code.
As a consequence, the data provided by the application was effectively
ignored.

This commit fixes the problem by a more efficient implementation which
does not copy the data in memory and by raising the buffer the size limit
to INT32_MAX (2 gigabytes). This is less than the NIST limit of 2^35 bits
but it was chosen intentionally to avoid platform dependent problems
like integer sizes and/or signed/unsigned conversion.

Additionally, the DRBG is now less permissive on errors: In addition to
pushing a message to the openssl error stack, it enters the error state,
which forces a reinstantiation on next call.

Thanks go to Dr. Falko Strenzke for reporting this issue to the
openssl-security mailing list. After internal discussion the issue
has been categorized as not being security relevant, because the DRBG
reseeds automatically and is fully functional even without additional
randomness provided by the application.

Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7382)

(cherry picked from commit 3064b55134)
2018-10-16 22:32:42 +02:00
Mykola Baibuz
3924d69965 Safer memory cleanup in (crypto/rsa/rsa_lib.c)
We don't need to use secure clean for public key.

CLA: trivial

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7363)

(cherry picked from commit c033101db3)
2018-10-13 21:19:24 +08:00
Andy Polyakov
a9e4192e71 rsa/rsa_ossl.c: fix and extend commentary [skip ci].
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7123)

(cherry picked from commit d1c008f66b)
2018-10-12 22:28:52 +02:00
Andy Polyakov
7ed9ad1cc3 sha/asm/keccak1600-s390x.pl: resolve -march=z900 portability issue.
Negative displacement in memory references was not originally specified,
so that for maximum coverage one should abstain from it, just like with
any other extension. [Unless it's guarded by run-time switch, but there
is no switch in keccak1600-s390x.]

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7239)

(cherry picked from commit fc97c882f4)
2018-10-12 20:53:57 +02:00
FdaSilvaYY
7f0e220f4d crypto/rand: fix some style nit's
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/7378)

(cherry picked from commit c2e33a05b1)
2018-10-10 14:02:45 +02:00
Dr. Matthias St. Pierre
b99f047f3f rand_unix.c: fix --with-rand-seed=none build
Fixes a compiler warning about an unused syscall_random()
and cleans up the OPENSSL_RAND_SEED preprocessor logic.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/779)

(cherry picked from commit d90e128be6)
2018-10-10 12:40:52 +02:00
Paul Yang
8848b14fda Fix a nit of copyright date range
Should be 2018 instead of 20018.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7364)
2018-10-10 09:51:03 +08:00
Richard Levitte
e9a4fb4997 /dev/crypto engine: give CIOCFSESSION the actual sess-id
We passed that ioctl a pointer to the whole session_op structure,
which wasn't quite right.

Notified by David Legault.

Fixes 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7304)

(cherry picked from commit 470096e576)
2018-10-05 21:55:38 +02:00
Dr. Matthias St. Pierre
5e130ae632 test/secmemtest: test secure memory only if it is implemented
Fixes 

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7351)

(cherry picked from commit 8529b15642)
2018-10-05 12:23:34 +02:00
Matt Caswell
90893527fc Fix the BIO callback return code handling
The BIO callback handling incorrectly wrote over the return code passed
to the callback, meaning that an incorrect result was (eventually) returned
to the caller.

Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7344)

(cherry picked from commit d97ce8d9a0)
2018-10-04 14:20:27 +01:00
Richard Levitte
6babfb2161 Small cleanup (util/mkdef.pl, crypto/bio/bss_log.c, include/openssl/ocsp.h)
BIO_s_log() is declared for everyone, so should return NULL when not
actually implemented.  Also, it had explicit platform limitations in
util/mkdef.pl that didn't correspond to what was actually in code.
While at it, a few other hard coded things that have lost their
relevance were removed.

include/openssl/ocsp.h had a few duplicate declarations.

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7331)

(cherry picked from commit 7e09c5eaa5)
2018-10-04 09:59:00 +02:00
Matt Caswell
acb03676c5 Fix some Coverity warnings
Check some return values on some functions.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7335)

(cherry picked from commit 434893af2b)
2018-10-02 10:58:05 +01:00
Pauli
79c2c74130 Use secure_getenv(3) when available.
Change all calls to getenv() inside libcrypto to use a new wrapper function
that use secure_getenv() if available and an issetugid then getenv if not.

CPU processor override flags are unchanged.

Extra checks for OPENSSL_issetugid() have been removed in favour of the
safe getenv.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7047)

(cherry picked from commit 5c39a55d04)
2018-09-24 11:22:22 +10:00
agnosticdev
c257f61f10 typo-fixes: miscellaneous typo fixes
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/7277)

(cherry picked from commit 46d085096c)
2018-09-21 23:59:02 +02:00
Richard Levitte
4ccd6c5479 crypto/bn/asm/x86_64-gcc.c: remove unnecessary redefinition of BN_ULONG
This module includes bn.h via other headers, so it picks up the
definition from there and doesn't need to define them locally (any
more?).  Worst case scenario, the redefinition may be different and
cause all sorts of compile errors.

Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7287)

(cherry picked from commit dda5396aae)
2018-09-21 11:35:14 +02:00
Richard Levitte
baa5cdad88 /dev/crypto engine: add missing RC4 parameter
Fixes 

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7281)

(cherry picked from commit f52f2c1ae8)
2018-09-20 22:02:43 +02:00
Richard Levitte
226e6a2cf2 crypto/ui/ui_openssl.c: make sure to recognise ENXIO and EIO too
These both indicate that the file descriptor we're trying to use as a
terminal isn't, in fact, a terminal.

Fixes 

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7272)

(cherry picked from commit 276bf8620c)
2018-09-20 06:40:52 +02:00
Pauli
d2d3b5ded7 Add missing include file.
Specifically, include e_os.h to pick up alloca definition for WIN32.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7234)

(cherry picked from commit a825856ab7)
2018-09-17 12:54:20 +10:00
Pauli
24907560db Use 'i' as parameter name not 'I'.
The latter causes problems when complex.h is #included.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7233)

(cherry picked from commit 972f67889b)
2018-09-17 09:53:15 +10:00
Richard Levitte
d6d6aa3521 VMS: only use the high precision on VMS v8.4 and up
It simply isn't available on older versions.

Issue submitted by Mark Daniels

Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7230)
2018-09-15 14:59:06 +02:00
Paul Yang
2ccfcbfb71 Make some return checks consistent with others
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7209)
2018-09-13 23:23:18 +09:00
Dr. Matthias St. Pierre
b262a00229 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 

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

(cherry picked from commit c402e943cd)
2018-09-12 23:48:18 +02:00
Viktor Szakats
f8e1c190d5 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)
2018-09-12 09:18:25 +02:00
Richard Levitte
6258e244bf crypto/sm2/sm2_sign.c: ensure UINT16_MAX is properly defined
Fixes 

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

(cherry picked from commit 88ea3685e4)
2018-09-12 02:12:31 +02:00
Matt Caswell
1212818eb0 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7176)
2018-09-11 13:45:17 +01:00
Matt Caswell
512d811719 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)
2018-09-10 17:33:02 +01:00
Matt Caswell
d689f313cc 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)
2018-09-10 17:28:33 +01:00
Dr. Matthias St. Pierre
427e91d928 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)
2018-09-10 11:03:50 +01:00
Richard Levitte
ca89174bc9 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 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7144)
2018-09-09 03:39:37 +02:00
Richard Levitte
d74f23d2db 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 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7145)
2018-09-09 01:47:56 +02:00
Richard Levitte
d0123525cd 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)
2018-09-09 01:47:56 +02:00
Paul Yang
f922dac87d 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)
2018-09-07 18:12:26 +08:00
Paul Yang
81c7945388 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)
2018-09-07 18:12:26 +08:00
Paul Yang
675f4ceef8 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)
2018-09-07 18:12:26 +08:00
Paul Yang
4803717f5e Support setting SM2 ID
zero-length ID is allowed, but it's not allowed to skip the ID.

Fixes: 

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7113)
2018-09-07 18:12:26 +08:00
Paul Yang
00433bad41 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)
2018-09-07 18:12:26 +08:00
Paul Yang
0a8fdef752 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)
2018-09-07 18:12:26 +08:00
Paul Yang
00902d9414 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)
2018-09-07 18:12:26 +08:00
Paul Yang
5bd0abe7a2 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)
2018-09-07 18:12:26 +08:00
Pauli
a6465b3f85 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)
2018-09-07 09:04:59 +10:00
Shane Lontis
82eba370da 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)
2018-09-06 14:51:30 +10:00
Shane Lontis
2eb2b4f3a1 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)
2018-09-06 08:34:45 +10:00
Nicola Tuveri
544648a8e0 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)
2018-09-05 15:22:35 +03:00
Nicola Tuveri
0c5d725ebf 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  .

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)
2018-09-05 15:22:35 +03:00
Shane Lontis
64ed55ab03 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)
2018-09-05 05:21:46 +10:00
Shane Lontis
f5cee414fa 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)
2018-09-05 05:18:43 +10:00
Shane Lontis
0239283d99 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)
2018-09-05 05:14:02 +10:00
Pauli
e0810e3502 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)
2018-09-04 08:09:12 +10:00
Pauli
fc196a5eb9 Make OBJ_NAME case insensitive.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7089)
2018-09-04 07:35:45 +10:00
Shane Lontis
2d28a42f89 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)
2018-09-04 07:31:41 +10:00
Billy Brumley
bfb10b9758 [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)
2018-09-03 20:25:41 +02:00
wzhang
a7eeefeadc 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)
2018-09-03 20:35:11 +08:00
Paul Kehrer
20c3672174 add getter for tbsResponseData and signatureAlgorithm on OCSP_BASICRESP
fixes 

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)
2018-09-03 06:07:22 +02:00
Pauli
6bcfcf16bf 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)
2018-09-03 10:41:07 +10:00
Pauli
a8d3dbe19b 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)
2018-09-03 09:57:28 +10:00
Eric Brown
59701e6363 Remove redundant ASN1_INTEGER_set call
This trivial patch removes a duplicated call to ASN1_INTEGER_set.

Fixes Issue 

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)
2018-09-03 07:19:54 +10:00
ymlbright
307a494e5b 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)
2018-08-29 13:47:14 +10:00
Andy Polyakov
7d38ca3f8b 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)
2018-08-26 17:47:49 +02:00
Andy Polyakov
324b956052 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)
2018-08-23 22:20:35 +02:00
Andy Polyakov
e02c519cd3 bn/bn_blind.c: use Montgomery multiplication when possible.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6915)
2018-08-23 22:20:35 +02:00
Andy Polyakov
41bfd5e7c8 rsa/rsa_ossl.c: implement variant of "Smooth CRT-RSA."
In [most common] case of p and q being of same width, it's possible to
replace CRT modulo operations with Montgomery reductions. And those are
even fixed-length Montgomery reductions...

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6915)
2018-08-23 22:20:35 +02:00
Andy Polyakov
fcc4ee0947 crypto/bn: add more fixed-top routines.
Add bn_{mul|sqr}_fixed_top, bn_from_mont_fixed_top, bn_mod_sub_fixed_top.
Switch to bn_{mul|sqr}_fixed_top in bn_mul_mont_fixed_top and remove
memset in bn_from_montgomery_word.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6915)
2018-08-23 22:20:35 +02:00
Matthias Kraft
ea5def1478 Extend dladdr() for AIX, consequence from changes for openssl#6368.
The shared libraries are now stored as members of archives, as it is usual
on AIX. To correctly address this the custom dladdr()-implementation as
well as the dlfcn_load() routine need to be able to cope with such a
construct: libname.a(libname.so).

Signed-off-by: Matthias Kraft <Matthias.Kraft@softwareag.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6872)
2018-08-22 21:50:33 +02:00
Andy Polyakov
0b1319ba94 crypto/init.c: improve destructor_key's portability.
It was assumed that CRYPTO_THREAD_LOCAL is universally scalar type,
which doesn't appear to hold true.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6976)
2018-08-22 21:46:01 +02:00
Andy Polyakov
19934970ac asn1/asn_moid.c: overhaul do_create.
Original could allocate nid and then bail out on malloc failure. Instead
allocate first *then* attempt to create object.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6998)
2018-08-22 21:35:27 +02:00
Matt Caswell
aabbc24e42 Improve the usability of the ca app using EdDSA
Previously you had to supply "null" as the digest to use EdDSA. This changes
things so that any digest is ignored.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6901)
2018-08-22 16:35:54 +01:00
Dr. Matthias St. Pierre
bc420ebea2 rand_lib.c: Don't open random devices while cleaning up.
Fixes 

In pull request  a change was made to keep the handles to the
random devices opened in order to avoid reseeding problems for
applications in chroot environments.

As a consequence, the handles of the random devices were leaked at exit
if the random generator was not used by the application. This happened,
because the call to RAND_set_rand_method(NULL) in rand_cleanup_int()
triggered a call to the call_once function do_rand_init, which opened
the random devices via rand_pool_init().

Thanks to GitHub user @bwelling for reporting this issue.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7023)
2018-08-22 10:53:49 +02:00
Pauli
3b8e97ab61 Zero memory in CRYPTO_secure_malloc.
This commit destroys the free list pointers which would otherwise be
present in the returned memory blocks.  This in turn helps prevent
information leakage from the secure memory area.

Note: CRYPTO_secure_malloc is not guaranteed to return zeroed memory:
before the secure memory system is initialised or if it isn't implemented.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7011)
2018-08-22 09:20:18 +10:00
Nicola Tuveri
5d92b853f6 Replace GFp ladder implementation with ladd-2002-it-4 from EFD
The EFD database does not state that the "ladd-2002-it-3" algorithm
assumes X1 != 0.
Consequently the current implementation, based on it, fails to compute
correctly if the affine x coordinate of the scalar multiplication input
point is 0.

We replace this implementation using the alternative algorithm based on
Eq. (9) and (10) from the same paper, which being derived from the
additive relation of (6) does not incur in this problem, but costs one
extra field multiplication.

The EFD entry for this algorithm is at
https://hyperelliptic.org/EFD/g1p/auto-shortw-xz.html#ladder-ladd-2002-it-4
and the code to implement it was generated with tooling.

Regression tests add one positive test for each named curve that has
such a point. The `SharedSecret` was generated independently from the
OpenSSL codebase with sage.

This bug was originally reported by Dmitry Belyavsky on the
openssl-users maling list:
https://mta.openssl.org/pipermail/openssl-users/2018-August/008540.html

Co-authored-by: Billy Brumley <bbrumley@gmail.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7000)
2018-08-21 09:51:18 +01:00
Pauli
756510c102 Check getauxval on systems that have it when checking for setuid execution.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/6993)
2018-08-20 11:12:26 +10:00
Dr. Matthias St. Pierre
cca9962178 rand_unix.c: don't discard entropy bytes from /dev/*random
Don't discard partial reads from /dev/*random and retry instead.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6990)
2018-08-19 12:44:05 +02:00
Dr. Matthias St. Pierre
630ce41e83 rand_unix.c: don't discard entropy bytes from syscall_random()
Fixes 

Don't discard partial reads from syscall_random() and retry instead.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6990)
2018-08-19 12:44:05 +02:00
Dr. Matthias St. Pierre
9b5f1c8fd8 rand_unix.c: assimilate syscall_random() with getrandom(2)
Change return value type to ssize_t and ensure that a negative value
is returned only if a corresponding errno is set.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6990)
2018-08-19 12:44:05 +02:00
Benjamin Kaduk
50f3994b51 Avoid shadowing 'free' in X509_LOOKUP_met_set_free
gcc 4.6 (arguably erroneously) warns about our use of 'free' as
the name of a function parameter, when --strict-warnings is enabled:

crypto/x509/x509_meth.c: In function 'X509_LOOKUP_meth_set_free':
crypto/x509/x509_meth.c:61:12: error: declaration of 'free' shadows a global declaration [-Werror=shadow]
cc1: all warnings being treated as errors
make[1]: *** [crypto/x509/x509_meth.o] Error 1

(gcc 4.8 is fine with this code, as are newer compilers.)

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6991)
2018-08-17 13:57:23 -05:00
Andy Polyakov
d2b863643d crypto/threads_*: remove CRYPTO_atomic_{read|write}.
CRYPTO_atomic_read was added with intention to read statistics counters,
but readings are effectively indistinguishable from regular load (even
in non-lock-free case). This is because you can get out-dated value in
both cases. CRYPTO_atomic_write was added for symmetry and was never used.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6883)
2018-08-17 12:40:39 +02:00
Tomas Mraz
60c526975a Deallocate previously loaded SSL CONF module data
If application explicitly calls CONF_modules_load_file() the SSL
conf module will be initialized twice and the module data would leak.
We need to free it before initializing it again.

Fixes 

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6948)
2018-08-14 17:43:36 -04:00
Andy Polyakov
2369111fd9 crypto/o_fopen.c: alias fopen to fopen64.
Originally fopen(3) was called from bio/bss_file.c, which performed the
aliasing. Then fopen(3) was moved to o_fopen.c, while "magic" definition
was left behind. It's still useful on 32-bit platforms, so pull it to
o_fopen.c.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6596)
2018-08-13 20:33:20 +01:00
Richard Levitte
cba024dc68 i2d_ASN1_OBJECT(): allocate memory if the user didn't provide a buffer
Since 0.9.7, all i2d_ functions were documented to allocate an output
buffer if the user didn't provide one, under these conditions (from
the 1.0.2 documentation):

    For OpenSSL 0.9.7 and later if B<*out> is B<NULL> memory will be
    allocated for a buffer and the encoded data written to it. In this
    case B<*out> is not incremented and it points to the start of the
    data just written.

i2d_ASN1_OBJECT was found not to do this, and would crash if a NULL
output buffer was provided.

Fixes 

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/6918)
2018-08-11 12:27:02 +02:00
Pauli
d0d0e8a719 Change the OID references for X25519, X448, ED25519 and ED448 from the draft RFC
to the now released RFC 8410.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6910)
2018-08-10 08:41:00 +10:00
Matt Caswell
1049ae985e Revert "stack/stack.c: omit redundant NULL checks."
This reverts commit 8839324450.

Removing these checks changes the behaviour of the API which is not
appropriate for a minor release. This also fixes a failure in the
fuzz tests when building with no-comp.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6895)
2018-08-09 14:37:10 +01:00
Andy Polyakov
8f15498563 crypto/mem.c: switch to tsan_assist.h in CRYPTO_MDEBUG.
Rationale is that it wasn't providing accurate statistics anyway.
For statistics to be accurate CRYPTO_get_alloc_counts should acquire
a lock and lock-free additions should not be an option.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:50 +02:00
Andy Polyakov
e519d6b563 engine/eng_lib.c: remove redundant #ifdef.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:46 +02:00
Andy Polyakov
f21b5b64cb x509v3/v3_purp.c: re-implement lock-free check for extensions cache validity.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:31 +02:00
Andy Polyakov
0da7358b07 x509v3/v3_purp.c: resolve Thread Sanitizer nit.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:27 +02:00
Andy Polyakov
cab76c0f64 lhash/lhash.c: switch to Thread-Sanitizer-friendly primitives.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:18 +02:00
Andy Polyakov
8839324450 stack/stack.c: omit redundant NULL checks.
Checks are left in OPENSSL_sk_shift, OPENSSL_sk_pop and OPENSSL_sk_num.
This is because these are used as "opportunistic" readers, pulling
whatever datai, if any, set by somebody else. All calls that add data
don't check for stack being NULL, because caller should have checked
if stack was actually created.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6860)
2018-08-07 08:57:02 +02:00
Andy Polyakov
5b37fef04a Harmonize use of sk_TYPE_find's return value.
In some cases it's about redundant check for return value, in some
cases it's about replacing check for -1 with comparison to 0.
Otherwise compiler might generate redundant check for <-1. [Even
formatting and readability fixes.]

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6860)
2018-08-07 08:56:54 +02:00
Andy Polyakov
28ad73181a x509/x509name.c: fix potential crash in X509_NAME_get_text_by_OBJ.
Documentation says "at most B<len> bytes will be written", which
formally doesn't prohibit zero. But if zero B<len> was passed, the
call to memcpy was bound to crash.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6860)
2018-08-07 08:56:17 +02:00
Richard Levitte
38eca7fed0 Make EVP_PKEY_asn1_new() stricter with its input
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6880)
2018-08-07 07:53:08 +02:00
Patrick Steuer
f38edcab59 s390x assembly pack: add KIMD/KLMD code path for sha3/shake
Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5935)
2018-08-06 12:04:52 +02:00
Dr. Matthias St. Pierre
28c5b7d482 Fix some undefined behaviour in the Curve448 code (2nd attempt)
Fixes 
Replaces 

This commit reverts commit 7876dbffce and moves the check for a
zero-length input down the callstack into sha3_update().

Reviewed-by: Matt Caswell <matt@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/6838)
2018-08-03 12:02:14 +02:00
Andy Polyakov
680b9d45b0 asn1/tasn_utl.c: fix logical error in and overhaul asn1_do_lock.
CRYPTO_atomic_add was assumed to return negative value on error, while
it returns 0.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2018-08-01 16:07:24 +02:00
Pauli
f52292be10 Add OIDs for HMAC SHA512/224 and HMAC SHA512/256.
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6830)
2018-08-01 11:58:39 +10:00
Matt Caswell
43a0f2733a Fix some TLSv1.3 alert issues
Ensure that the certificate required alert actually gets sent (and doesn't
get translated into handshake failure in TLSv1.3).

Ensure that proper reason codes are given for the new TLSv1.3 alerts.

Remove an out of date macro for TLS13_AD_END_OF_EARLY_DATA. This is a left
over from an earlier TLSv1.3 draft that is no longer used.

Fixes 

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6809)
2018-07-31 09:31:50 +01:00
Matt Caswell
50db81633e Deprecate the EC curve type specific functions in 1.2.0
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6815)
2018-07-31 09:08:50 +01:00
Matt Caswell
9cc570d4c4 Use the new non-curve type specific EC functions internally
Fixes 

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6815)
2018-07-31 09:08:38 +01:00
Matt Caswell
8e3cced75f Provide EC functions that are not curve type specific
Some EC functions exist in *_GFp and *_GF2m forms, in spite of the
implementations between the two curve types being identical. This
commit provides equivalent generic functions with the *_GFp and *_GF2m
forms just calling the generic functions.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6815)
2018-07-31 09:08:38 +01:00
Pauli
3d3cbce550 Check return from BN_sub
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6823)
2018-07-31 13:30:29 +10:00
Pauli
35c9408108 Check conversion return in ASN1_INTEGER_print_bio.
Also streamline the code by relying on ASN1_INTEGER_to_BN to allocate the
BN instead of doing it separately.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6821)
2018-07-31 11:37:05 +10:00
Bryan Donlan
665d9d1c06 Remove DSA digest length checks when no digest is passed
FIPS 186-4 does not specify a hard requirement on DSA digest lengths,
and in any case the current check rejects the FIPS recommended digest
lengths for key sizes != 1024 bits.

Fixes: 

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6749)
2018-07-29 21:26:29 +02:00
Billy Brumley
9d91530d2d EC GFp ladder
This commit leverages the Montgomery ladder scaffold introduced in 
(alongside a specialized Lopez-Dahab ladder for binary curves) to
provide a specialized differential addition-and-double implementation to
speedup prime curves, while keeping all the features of
`ec_scalar_mul_ladder` against SCA attacks.

The arithmetic in ladder_pre, ladder_step and ladder_post is auto
generated with tooling, from the following formulae:

- `ladder_pre`: Formula 3 for doubling from Izu-Takagi "A fast parallel
  elliptic curve multiplication resistant against side channel attacks",
  as described at
  https://hyperelliptic.org/EFD/g1p/auto-shortw-xz.html#doubling-dbl-2002-it-2
- `ladder_step`: differential addition-and-doubling Eq. (8) and (10)
  from Izu-Takagi "A fast parallel elliptic curve multiplication
  resistant against side channel attacks", as described at
  https://hyperelliptic.org/EFD/g1p/auto-shortw-xz.html#ladder-ladd-2002-it-3
- `ladder_post`: y-coordinate recovery using Eq. (8) from Brier-Joye
  "Weierstrass Elliptic Curves and Side-Channel Attacks", modified to
  work in projective coordinates.

Co-authored-by: Nicola Tuveri <nic.tuv@gmail.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6772)
2018-07-26 19:41:16 +02:00
Andy Polyakov
8e83072310 Add ec/asm/x25519-ppc64.pl module.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6782)
2018-07-26 14:01:49 +02:00
Andy Polyakov
70a579ae2f bn/bn_mod.c: harmonize BN_mod_add_quick with original implementation.
New implementation failed to correctly reset r->neg flag. Spotted by
OSSFuzz.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6783)
2018-07-26 13:56:05 +02:00
Paul Yang
9e4c977748 Fix a trivial coding style nit in sm2_sign.c
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Andy Polyakov <appro@openssl.org>
GH: 
2018-07-26 07:09:22 +02:00
Shane Lontis
7c226dfc43 Fixed issue where DRBG_CTR fails if NO_DF is used - when entropy is called
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/6778)
2018-07-26 06:58:44 +10:00
Rich Salz
037241bf04 Check for failures, to avoid memory leak
Thanks to Jiecheng Wu, Zuxing Gu for the report.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6791)
2018-07-25 15:57:18 -04:00
Andy Polyakov
80ae7285e1 crypto/init.c: use destructor_key even as guard in OPENSSL_thread_stop.
Problem was that Windows threads that were terminating before libcrypto
was initialized were referencing uninitialized or possibly even
unrelated thread local storage index.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6752)
2018-07-25 16:37:35 +02:00
Andy Polyakov
ceb8e32cbc crypto/dllmain.c: remove unused OPENSSL_NONPIC_relocated variable.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6752)
2018-07-25 16:37:31 +02:00
Andy Polyakov
9e4a1c3f65 crypto/cryptlib.c: resolve possible race in OPENSSL_isservice.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6752)
2018-07-25 16:37:25 +02:00
Andy Polyakov
b86d57bb0b crypto/cryptlib.c: make OPENSS_cpuid_setup safe to use as constructor.
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6752)
2018-07-25 16:36:26 +02:00
Andy Polyakov
7b953da40d ec/ecp_nistz256.c: fix Coverity nit.
|ctx| recently became unconditionally non-NULL and is already dereferenced
earlier.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2018-07-25 15:45:18 +02:00
David Benjamin
61ac9fc5c4 Remove zero special-case in BN_mod_exp_mont.
A number intended to treat the base as secret should not be branching on
whether it is zero. Test-wise, this is covered by existing tests in bnmod.txt.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6733)
2018-07-24 11:48:48 -04:00
neighbads
675fa85413 Update sm2_crypt.c
asn1_encode : x, y  =>    0 | x,0 | y
(because of DER encoding rules when x and y have high bit set)

CLA: Trivial

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6694)
2018-07-24 12:28:03 +02:00
Richard Levitte
85aebfcc6e def_load_bio(): Free |biosk| more carefully
If there's anything in the |biosk| stack, the first element is always
the input BIO.  It should never be freed in this function, so we must
take careful steps not to do so inadvertently when freeing the stack.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6769)
2018-07-24 09:50:56 +02:00
Andy Polyakov
8fc4aeb952 ec/ecp_nistz256.c: fix ecp_nistz256_set_from_affine.
ecp_nistz256_set_from_affine is called when application attempts to use
custom generator, i.e. rarely. Even though it was wrong, it didn't
affect point operations, they were just not as fast as expected.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6738)
2018-07-22 15:22:01 +02:00
Andy Polyakov
87a75b3e5c ec/asm/ecp_nistz256-{!x86_64}.pl: fix scatter_w7 function.
The ecp_nistz256_scatter_w7 function is called when application
attempts to use custom generator, i.e. rarely. Even though non-x86_64
versions were wrong, it didn't affect point operations, they were just
not as fast as expected.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6738)
2018-07-22 15:21:44 +02:00
Andy Polyakov
f40e0a342c bn/bn_intern.c: const-ify bn_set_{static}_words.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6738)
2018-07-22 15:21:18 +02:00
Richard Levitte
b709babbca PKCS12: change safeContentsBag from a SET OF to a SEQUENCE OF
As per RFC 7292.

Fixes 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6708)
2018-07-22 11:01:36 +02:00
Andy Polyakov
f20aa69e33 crypto/*: address standard-compilance nits.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6745)
2018-07-20 13:40:30 +02:00
Andy Polyakov
f36e9f1183 bio/bss_dgram.c: harmonize usage of OPENSSL_USE_IPV6 with the rest.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6745)
2018-07-20 13:40:27 +02:00
Andy Polyakov
756c91b163 ec/ec_lcl.h: fix pre-C9x compilation problems.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6745)
2018-07-20 13:40:19 +02:00
Matt Caswell
d8434cf856 Validate legacy_version
The spec says that a client MUST set legacy_version to TLSv1.2, and
requires servers to verify that it isn't SSLv3.

Fixes 

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6747)
2018-07-20 10:52:02 +01:00
Andy Polyakov
37132c9702 ec/ecdsa_ossl.c: switch to fixed-length Montgomery multiplication.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: David Benjamin <davidben@google.com>
(Merged from https://github.com/openssl/openssl/pull/6664)
2018-07-18 16:09:56 +02:00
Andy Polyakov
fff7a0dcf6 ec/ecdsa_ossl.c: formatting and readability fixes.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: David Benjamin <davidben@google.com>
(Merged from https://github.com/openssl/openssl/pull/6664)
2018-07-18 16:09:51 +02:00
Andy Polyakov
3fc7a9b96c ec/ecdsa_ossl.c: revert blinding in ECDSA signature.
Originally suggested solution for "Return Of the Hidden Number Problem"
is arguably too expensive. While it has marginal impact on slower
curves, none to ~6%, optimized implementations suffer real penalties.
Most notably sign with P-256 went more than 2 times[!] slower. Instead,
just implement constant-time BN_mod_add_quick.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: David Benjamin <davidben@google.com>
(Merged from https://github.com/openssl/openssl/pull/6664)
2018-07-18 16:08:59 +02:00
Andy Polyakov
83e034379f bn/bn_lib.c address Coverity nit in bn2binpad.
It was false positive, but one can as well view it as readability issue.
Switch even to unsigned indices because % BN_BYTES takes 4-6 instructions
with signed dividend vs. 1 (one) with unsigned.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2018-07-18 16:04:24 +02:00
Mat
1a50eedf2a Fix typo in x25519-x86_64.pl
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6726)
2018-07-17 10:20:45 -04:00
Nicola Tuveri
01ad66f85d EC2M Lopez-Dahab ladder: use it also for ECDSA verify
By default `ec_scalar_mul_ladder` (which uses the Lopez-Dahab ladder
implementation) is used only for (k * Generator) or (k * VariablePoint).
ECDSA verification uses (a * Generator + b * VariablePoint): this commit
forces the use of `ec_scalar_mul_ladder` also for the ECDSA verification
path, while using the default wNAF implementation for any other case.

With this commit `ec_scalar_mul_ladder` loses the static attribute, and
is added to ec_lcl.h so EC_METHODs can directly use it.

While working on a new custom EC_POINTs_mul implementation, I realized
that many checks (e.g. all the points being compatible with the given
EC_GROUP, creating a temporary BN_CTX if `ctx == NULL`, check for the
corner case `scalar == NULL && num == 0`) were duplicated again and
again in every single implementation (and actually some
implementations lacked some of the tests).
I thought that it makes way more sense for those checks that are
independent from the actual implementation and should always be done, to
be moved in the EC_POINTs_mul wrapper: so this commit also includes
these changes.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6690)
2018-07-16 10:17:40 +01:00
Nicola Tuveri
f45846f500 EC2M Lopez-Dahab ladder implementation
This commit uses the new ladder scaffold to implement a specialized
ladder step based on differential addition-and-doubling in mixed
Lopez-Dahab projective coordinates, modified to independently blind the
operands.

The arithmetic in `ladder_pre`, `ladder_step` and `ladder_post` is
auto generated with tooling:
- see, e.g., "Guide to ECC" Alg 3.40 for reference about the
  `ladder_pre` implementation;
- see https://www.hyperelliptic.org/EFD/g12o/auto-code/shortw/xz/ladder/mladd-2003-s.op3
  for the differential addition-and-doubling formulas implemented in
  `ladder_step`;
- see, e.g., "Fast Multiplication on Elliptic Curves over GF(2**m)
  without Precomputation" (Lopez and Dahab, CHES 1999) Appendix Alg Mxy
  for the `ladder_post` implementation to recover the `(x,y)` result in
  affine coordinates.

Co-authored-by: Billy Brumley <bbrumley@gmail.com>
Co-authored-by: Sohaib ul Hassan <soh.19.hassan@gmail.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6690)
2018-07-16 10:17:40 +01:00
Nicola Tuveri
3712436071 EC point multiplication: add ladder scaffold
for specialized Montgomery ladder implementations

PR  and  replaced the default EC point multiplication path for
prime and binary curves with a unified Montgomery ladder implementation
with various timing attack defenses (for the common paths when a secret
scalar is feed to the point multiplication).
The newly introduced default implementation directly used
EC_POINT_add/dbl in the main loop.

The scaffolding introduced by this commit allows EC_METHODs to define a
specialized `ladder_step` function to improve performances by taking
advantage of efficient formulas for differential addition-and-doubling
and different coordinate systems.

- `ladder_pre` is executed before the main loop of the ladder: by
  default it copies the input point P into S, and doubles it into R.
  Specialized implementations could, e.g., use this hook to transition
  to different coordinate systems before copying and doubling;
- `ladder_step` is the core of the Montgomery ladder loop: by default it
  computes `S := R+S; R := 2R;`, but specific implementations could,
  e.g., implement a more efficient formula for differential
  addition-and-doubling;
- `ladder_post` is executed after the Montgomery ladder loop: by default
  it's a noop, but specialized implementations could, e.g., use this
  hook to transition back from the coordinate system used for optimizing
  the differential addition-and-doubling or recover the y coordinate of
  the result point.

This commit also renames `ec_mul_consttime` to `ec_scalar_mul_ladder`,
as it better corresponds to what this function does: nothing can be
truly said about the constant-timeness of the overall execution of this
function, given that the underlying operations are not necessarily
constant-time themselves.
What this implementation ensures is that the same fixed sequence of
operations is executed for each scalar multiplication (for a given
EC_GROUP), with no dependency on the value of the input scalar.

Co-authored-by: Sohaib ul Hassan <soh.19.hassan@gmail.com>
Co-authored-by: Billy Brumley <bbrumley@gmail.com>

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6690)
2018-07-16 10:17:40 +01:00
Nicola Tuveri
51f3021d97 Remove stale SM2 error codes
Run `make update ERROR_REBUILD=-rebuild` to remove some stale error
codes for SM2 (which is now using its own submodule for error codes,
i.e., `SM2_*`).

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6690)
2018-07-16 10:17:40 +01:00
Andy Polyakov
3c849bc901 ec/curve25519.c: reorganize for better accessibility.
Move base 2^64 code to own #if section. It was nested in base 2^51 section,
which arguably might have been tricky to follow.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6699)
2018-07-15 19:06:06 +02:00
Andy Polyakov
d3e3263072 ec/asm/x25519-x86_64.pl: add CFI directives and Windows SE handler.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6699)
2018-07-15 19:05:57 +02:00
Andy Polyakov
2de607d8c9 ec/asm/x25519-x86_64.pl: fix base 2^64 add/sub and final reduction.
Base 2^64 addition/subtraction and final reduction failed to treat
partially reduced values correctly.

Thanks to Wycheproof Project for vectors and Paul Kehrer for report.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6699)
2018-07-15 19:04:48 +02:00
Andy Polyakov
5d1c09de1f bn/bn_lcl.h,bn_nist.c: addres strict warnings with -DBN_DEBUG.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2018-07-14 13:44:24 +02:00
Andy Polyakov
582ad5d4d9 rsa/*: switch to BN_bn2binpad.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5254)
2018-07-14 13:38:21 +02:00