BN_mod_inverse_odd was always being used on 64-bit platforms and was being used
for all curves with an order of 450 bits or smaller (basically, everything but
P-521). We generally don't care much about minor differences in the speed of
verifying signatures using curves other than P-256 and P-384. It is better to
always use the same algorithm.
This also allows |bn_mod_inverse_general|, |bn_mod_inverse_no_branch|, and
|BN_mod_inverse| to be dropped from programs that can somehow avoid linking in
the RSA key generation and RSA CRT recovery code.
Change-Id: I79b94bff23d2b07d5e0c704f7d44538797f8c7a0
Reviewed-on: https://boringssl-review.googlesource.com/9103
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
There are many cases where we need |BN_rand_range| but with a minimum
value other than 0. |BN_rand_range_ex| provides that.
Change-Id: I564326c9206bf4e20a37414bdbce16a951c148ce
Reviewed-on: https://boringssl-review.googlesource.com/8921
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This reverts commits:
8d79ed674019fdcb52348d79ed6740
Because WebRTC (at least) includes our headers in an extern "C" block,
which precludes having any C++ in them.
Change-Id: Ia849f43795a40034cbd45b22ea680b51aab28b2d
This change scatters the contents of the two scoped_types.h files into
the headers for each of the areas of the code. The types are now in the
|bssl| namespace.
Change-Id: I802b8de68fba4786b6a0ac1bacd11d81d5842423
Reviewed-on: https://boringssl-review.googlesource.com/8731
Reviewed-by: Adam Langley <agl@google.com>
We currently have the situation where the |tool| and |bssl_shim| code
includes scoped_types.h from crypto/test and ssl/test. That's weird and
shouldn't happen. Also, our C++ consumers might quite like to have
access to the scoped types.
Thus this change moves some of the template code to base.h and puts it
all in a |bssl| namespace to prepare for scattering these types into
their respective headers. In order that all the existing test code be
able to access these types, it's all moved into the same namespace.
Change-Id: I3207e29474dc5fcc344ace43119df26dae04eabb
Reviewed-on: https://boringssl-review.googlesource.com/8730
Reviewed-by: David Benjamin <davidben@google.com>
The case where ec_group_get_mont_data is NULL is only for arbitrary groups
which we now require to be prime order. BN_mod_exp_mont is fine with a NULL
BN_MONT_CTX. It will just compute it. Saves a bit of special-casing.
Also don't mark p-2 as BN_FLG_CONSTTIME as the exponent is public anyway.
Change-Id: Ie868576d52fc9ae5f5c9f2a4039a729151bf84c7
Reviewed-on: https://boringssl-review.googlesource.com/8307
Reviewed-by: Adam Langley <agl@google.com>
We do not need to support engine-provided verification methods.
Change-Id: Iaad8369d403082b728c831167cc386fdcabfb067
Reviewed-on: https://boringssl-review.googlesource.com/7311
Reviewed-by: David Benjamin <davidben@google.com>
A lot of consumers of obj.h only want the NID values. Others didn't need
it at all. This also removes some OBJ_nid2sn and OBJ_nid2ln calls in EVP
error paths which isn't worth pulling a large table in for.
BUG=chromium:499653
Change-Id: Id6dff578f993012e35b740a13b8e4f9c2edc0744
Reviewed-on: https://boringssl-review.googlesource.com/7563
Reviewed-by: David Benjamin <davidben@google.com>
See also 1b0c438e1a.
Change-Id: Ifcfe15caa4d0db8ef725f8dacd0e8c5c94b00a09
Reviewed-on: https://boringssl-review.googlesource.com/7390
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
An i2d compatibility function is rather long, so add CBB_finish_i2d for
part of it. It takes a CBB as input so only a 'marshal' function is
needed, rather than a 'to_bytes' one.
Also replace the *inp d2i update pattern with a slightly shorter one.
Change-Id: Ibb41059c9532f6a8ce33460890cc1afe26adc97c
Reviewed-on: https://boringssl-review.googlesource.com/6868
Reviewed-by: Adam Langley <agl@google.com>
There was a test for 512 bit orders but not one for 521-bit orders.
Test 521-bit orders instead.
Change-Id: I61a76d02637ca55d8ae21834085311dd84fd870f
Reviewed-on: https://boringssl-review.googlesource.com/7011
Reviewed-by: David Benjamin <davidben@google.com>
There's many ways to serialize a BIGNUM, so not including asn1 in the name is
confusing (and collides with BN_bn2cbb_padded). Since BN_asn12bn looks
ridiculous, match the parse/marshal naming scheme of other modules instead.
Change-Id: I53d22ae0537a98e223ed943e943c48cb0743cf51
Reviewed-on: https://boringssl-review.googlesource.com/6822
Reviewed-by: Adam Langley <alangley@gmail.com>
Since the error string logic was rewritten, this hasn't done anything.
Change-Id: Icb73dca65e852bb3c7d04c260d591906ec72c15f
Reviewed-on: https://boringssl-review.googlesource.com/6961
Reviewed-by: Adam Langley <agl@google.com>
|EC_GROUP_get0_order| doesn't require any heap allocations and never
fails, so it is much more convenient and more efficient for callers to
call.
Change-Id: Ic60f768875e7bc8e74362dacdb5cbbc6957b05a6
Reviewed-on: https://boringssl-review.googlesource.com/6532
Reviewed-by: Adam Langley <agl@google.com>
Chromium's toolchains may now assume C++11 library support, so we may freely
use C++11 features. (Chromium's still in the process of deciding what to allow,
but we use Google's style guide directly, toolchain limitations aside.)
Change-Id: I1c7feb92b7f5f51d9091a4c686649fb574ac138d
Reviewed-on: https://boringssl-review.googlesource.com/6465
Reviewed-by: Adam Langley <agl@google.com>
This change incorporates Intel's P-256 implementation. The record of
Intel's submission under CLA is in internal bug number 25330687.
Before:
Did 3582 ECDH P-256 operations in 1049114us (3414.3 ops/sec)
Did 8525 ECDSA P-256 signing operations in 1028778us (8286.5 ops/sec)
Did 3487 ECDSA P-256 verify operations in 1008996us (3455.9 ops/sec)
build/tool/bssl is 1434704 bytes after strip -s
After:
Did 8618 ECDH P-256 operations in 1027884us (8384.2 ops/sec)
Did 21000 ECDSA P-256 signing operations in 1049490us (20009.7 ops/sec)
Did 8268 ECDSA P-256 verify operations in 1079481us (7659.2 ops/sec)
build/tool/bssl is 1567216 bytes after strip -s
Change-Id: I147971a8e19849779c8ed7e20310d41bd4962299
Reviewed-on: https://boringssl-review.googlesource.com/6371
Reviewed-by: Adam Langley <agl@google.com>
It's very annoying having to remember the right incant every time I want
to switch around between my build, build-release, build-asan, etc.,
output directories.
Unfortunately, this target is pretty unfriendly without CMake 3.2+ (and
Ninja 1.5+). This combination gives a USES_TERMINAL flag to
add_custom_target which uses Ninja's "console" pool, otherwise the
output buffering gets in the way. Ubuntu LTS is still on an older CMake,
so do a version check in the meantime.
CMake also has its own test mechanism (CTest), but this doesn't use it.
It seems to prefer knowing what all the tests are and then tries to do
its own output management and parallelizing and such. We already have
our own runners. all_tests.go could actually be converted tidily, but
generate_build_files.py also needs to read it, and runner.go has very
specific needs.
Naming the target ninja -C build test would be nice, but CTest squats
that name and CMake grumps when you use a reserved name, so I've gone
with run_tests.
Change-Id: Ibd20ebd50febe1b4e91bb19921f3bbbd9fbcf66c
Reviewed-on: https://boringssl-review.googlesource.com/6270
Reviewed-by: Adam Langley <alangley@gmail.com>
arm_arch.h is included from ARM asm files, but lives in crypto/, not
openssl/include/. Since the asm files are often built from a different
location than their position in the source tree, relative include paths
are unlikely to work so, rather than having crypto/ be a de-facto,
second global include path, this change moves arm_arch.h to
include/openssl/.
It also removes entries from many include paths because they should be
needed as relative includes are always based on the locations of the
source file.
Change-Id: I638ff43d641ca043a4fc06c0d901b11c6ff73542
Reviewed-on: https://boringssl-review.googlesource.com/5746
Reviewed-by: Adam Langley <agl@google.com>
The documentation for |BN_CTX_get| states: "Once |BN_CTX_get| has
returned NULL, all future calls will also return NULL until
|BN_CTX_end| is called." Some code takes advantage of that guarantee
by only checking the return value of the last call to |BN_CTX_get| in a
series of calls. That is correct and the most efficient way of doing
it. However, that pattern is inconsistent with most of the other uses
of |BN_CTX_get|. Also, static analysis tools like Coverity cannot
understand that pattern. This commit removes the instances of that
pattern that Coverity complained about when scanning *ring*.
Change-Id: Ie36d0223ea1caee460c7979547cf5bfd5fb16f93
Reviewed-on: https://boringssl-review.googlesource.com/5611
Reviewed-by: Adam Langley <agl@google.com>
This is the first structure to be implemented with the new BIGNUM ASN.1
routines. Object reuse in the legacy d2i/i2d functions is implemented by
releasing whatever was in *out before and setting it to the
newly-allocated object. As with the new d2i_SSL_SESSION, this is a
weaker form of object reuse, but should suffice for reasonable callers.
As ECDSA_SIG is more likely to be parsed alone than as part of another
structure (and using CBB is slightly tedious), add convenient functions
which take byte arrays. For consistency with SSL_SESSION, they are named
to/from_bytes. from_bytes, unlike the CBS variant, rejects trailing
data.
Note this changes some test expectations: BER signatures now push an
error code. That they didn't do this was probably a mistake.
BUG=499653
Change-Id: I9ec74db53e70d9a989412cc9e2b599be0454caec
Reviewed-on: https://boringssl-review.googlesource.com/5269
Reviewed-by: Adam Langley <agl@google.com>
Also implement it without reference to crypto/asn1 or fake ASN1_INTEGERs and
add a test. Some platform crypto APIs only give back the key size, and not the
encoded signature length. No sense in implementing it twice.
BUG=347404,499653
Change-Id: I9aa27d52674375f8b036e57bb5850f091c9b25dd
Reviewed-on: https://boringssl-review.googlesource.com/5080
Reviewed-by: Adam Langley <agl@google.com>
Currently far from passing and I haven't even tried with a leak checker yet.
Also bn_test is slow.
Change-Id: I4fe2783aa5f7897839ca846062ae7e4a367d2469
Reviewed-on: https://boringssl-review.googlesource.com/4794
Reviewed-by: Adam Langley <agl@google.com>
This one really needs to get C++'d.
Change-Id: I088f3b77867af0cfc2da8324ba87954ef4cbba74
Reviewed-on: https://boringssl-review.googlesource.com/4350
Reviewed-by: Adam Langley <agl@google.com>
Beyond generally eliminating unnecessary includes, eliminate as many
includes of headers that declare/define particularly error-prone
functionality like strlen, malloc, and free. crypto/err/internal.h was
added to remove the dependency on openssl/thread.h from the public
openssl/err.h header. The include of <stdlib.h> in openssl/mem.h was
retained since it defines OPENSSL_malloc and friends as macros around
the stdlib.h functions. The public x509.h, x509v3.h, and ssl.h headers
were not changed in order to minimize breakage of source compatibility
with external code.
Change-Id: I0d264b73ad0a720587774430b2ab8f8275960329
Reviewed-on: https://boringssl-review.googlesource.com/4220
Reviewed-by: Adam Langley <agl@google.com>
The only dependency the low-level crypto modules have on code in
crypto/obj is their use of OBJ_nid2sn, which is trivial to avoid.
This facilitates future simplification of crypto/obj, including
possibly the removal of functions like OBJ_nid2sn and the complex
build infrastructure that supports them.
This change also removes EVP_CIPHER_name and EVP_MD_name.
Change-Id: I34ce7dc7e58d5c08b52f95d25eba3963590cf2f7
Reviewed-on: https://boringssl-review.googlesource.com/3932
Reviewed-by: Adam Langley <agl@google.com>
Limiting uses of crypto/bio to code that really need to it by avoiding
the use of BIO just to write to stdout/stderr.
Change-Id: I34e0f773161aeec073691e439ac353fb7b1785f3
Reviewed-on: https://boringssl-review.googlesource.com/3930
Reviewed-by: Adam Langley <agl@google.com>
Implement ECDSA_SIG_new and ECDSA_SIG_free manually in preparation for
removing all crypto/asn1 dependencies from ECDSA signature verification.
Change-Id: I0e84d74fa8e757af0cfb09daef03d59f428143cc
Reviewed-on: https://boringssl-review.googlesource.com/4153
Reviewed-by: Adam Langley <agl@google.com>
Previously, error strings were kept in arrays for each subdirectory and
err.c would iterate over them all and insert them at init time to a hash
table.
This means that, even if you have a shared library and lots of processes
using that, each process has ~30KB of private memory from building that
hash table.
This this change, all the error strings are built into a sorted list and
are thus static data. This means that processes can share the error
information and it actually saves binary space because of all the
pointer overhead in the old scheme. Also it saves the time taken
building the hash table at startup.
This removes support for externally-supplied error string data.
Change-Id: Ifca04f335c673a048e1a3e76ff2b69c7264635be
Including string.h in base.h causes any file that includes a BoringSSL
header to include string.h. Generally this wouldn't be a problem,
although string.h might slow down the compile if it wasn't otherwise
needed. However, it also causes problems for ipsec-tools in Android
because OpenSSL didn't have this behaviour.
This change removes string.h from base.h and, instead, adds it to each
.c file that requires it.
Change-Id: I5968e50b0e230fd3adf9b72dd2836e6f52d6fb37
Reviewed-on: https://boringssl-review.googlesource.com/3200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
By using non-DER or invalid encodings outside the signed portion of a
certificate the fingerprint can be changed without breaking the signature.
Although no details of the signed portion of the certificate can be changed
this can cause problems with some applications: e.g. those using the
certificate fingerprint for blacklists.
1. Reject signatures with non zero unused bits.
If the BIT STRING containing the signature has non zero unused bits reject the
signature. All current signature algorithms require zero unused bits.
2. Check certificate algorithm consistency.
Check the AlgorithmIdentifier inside TBS matches the one in the certificate
signature. NB: this will result in signature failure errors for some broken
certificates.
3. Check DSA/ECDSA signatures use DER.
Reencode DSA/ECDSA signatures and compare with the original received signature.
Return an error if there is a mismatch.
This will reject various cases including garbage after signature (thanks to
Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS program for
discovering this case) and use of BER or invalid ASN.1 INTEGERs (negative or
with leading zeroes).
CVE-2014-8275
(Imported from upstream's 85cfc188c06bd046420ae70dd6e302f9efe022a9 and
4c52816d35681c0533c25fdd3abb4b7c6962302d)
Change-Id: Ic901aea8ea6457df27dc542a11c30464561e322b
Reviewed-on: https://boringssl-review.googlesource.com/2783
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
RAND_pseudo_bytes just calls RAND_bytes now and only returns 0 or 1. Switch all
callers within the library call the new one and use the simpler failure check.
This fixes a few error checks that no longer work (< 0) and some missing ones.
Change-Id: Id51c79deec80075949f73fa1fbd7b76aac5570c6
Reviewed-on: https://boringssl-review.googlesource.com/2621
Reviewed-by: Adam Langley <agl@google.com>
Saves doing it ad-hoc all the time.
Change-Id: Ic1a1180f56eec37c19799649bb8f18237bd617f8
Reviewed-on: https://boringssl-review.googlesource.com/2241
Reviewed-by: Adam Langley <agl@google.com>
r and s are scalars, not EC coordinates.
Change-Id: I46a20215d3c602559c18c74a1da9a91543ea73ca
Reviewed-on: https://boringssl-review.googlesource.com/2240
Reviewed-by: Adam Langley <agl@google.com>
Windows is much pickier about dllimport/dllexport. Declare it on
the declaration, not the definition. Also ensure that the declaration
precedes the definition. Finally, remove a stray OPENSSL_EXPORT.
Change-Id: Id50b9de5acbe5adf1b15b22dd60b7a5c13a80cce
Reviewed-on: https://boringssl-review.googlesource.com/1862
Reviewed-by: Adam Langley <agl@google.com>
Chromium does not like static initializers, and the CPU logic uses one to
initialize CPU bits. However, the crypto library lacks an explicit
initialization function, which could complicate (no compile-time errors)
porting existing code which uses crypto/, but not ssl/.
Add an explicit CRYPTO_library_init function, but make it a no-op by default.
It only does anything (and is required) if building with
BORINGSSL_NO_STATIC_INITIALIZER.
Change-Id: I6933bdc3447fb382b1f87c788e5b8142d6f3fe39
Reviewed-on: https://boringssl-review.googlesource.com/1770
Reviewed-by: Adam Langley <agl@google.com>
Thanks to Denis Denisov for running the analysis.
Change-Id: I80810261e013423e746fd8d8afefb3581cffccc0
Reviewed-on: https://boringssl-review.googlesource.com/1701
Reviewed-by: Adam Langley <agl@google.com>
Where possible, functions should return one for success and zero for
error. The use of additional negative values to indicate an error is,
itself, error prone.
This change fixes many EVP functions to remove the possibility of
negative return values. Existing code that is testing for <= 0 will
continue to function, although there is the possibility that some code
was differentiating between negative values (error) and zero (invalid
signature) for the verify functions and will now show the wrong error
message.
Change-Id: I982512596bb18a82df65861394dbd7487783bd3d
Reviewed-on: https://boringssl-review.googlesource.com/1333
Reviewed-by: Adam Langley <agl@google.com>
The |size| method was documented to return the same as |ECDSA_size| -
the max size of an ECDSA signature. However, this involves some ASN.1
calculations which is best done once. What custom implementations want
to give is the size of the group order on which the ASN.1 computations
are based.
This change switches the |size| method to allow that.
Change-Id: I95b6e0c2b52bfcd0d74850c2c4e9bc01269255e2
Reviewed-on: https://boringssl-review.googlesource.com/1200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
