Commit Graph

41 Commits

Author SHA1 Message Date
Brian Smith
0acef5ec27 Simplify ec_group_st on the assumption it is used for GF(p) only.
Change-Id: I90e8f9ce7b996471daed129794eb1b0fa80a27cc
Reviewed-on: https://boringssl-review.googlesource.com/4272
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:53:20 +00:00
Brian Smith
054e682675 Eliminate unnecessary includes from low-level crypto modules.
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>
2015-04-13 20:49:18 +00:00
Brian Smith
83a82981dc Rename BIO_print_errors_fp back to ERR_print_errors_fp & refactor it.
A previous change in BoringSSL renamed ERR_print_errors_fp to
BIO_print_errors_fp as part of refactoring the code to improve the
layering of modules within BoringSSL. Rename it back for better
compatibility with code that was using the function under the original
name. Move its definition back to crypto/err using an implementation
that avoids depending on crypto/bio.

Change-Id: Iee7703bb1eb4a3d640aff6485712bea71d7c1052
Reviewed-on: https://boringssl-review.googlesource.com/4310
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:23:29 +00:00
Brian Smith
d6405beb2c Avoid calling BN_CTX_end without BN_CTX_start in ec_wNAF_precompute_mult.
Prior to this change, when EC_GROUP_get0_generator fails, BN_CTX_end
would get called even though BN_CTX_start hadn't been called yet, in
the case where the caller-supplied |ctx| is not NULL.

Change-Id: I6f728e74f0167193891cdb6f122b20b0770283dc
Reviewed-on: https://boringssl-review.googlesource.com/4271
Reviewed-by: Adam Langley <agl@google.com>
2015-04-09 00:29:14 +00:00
Brian Smith
69fe82ae1e Remove unused ec_pre_comp_st.group back pointer to group.
Change-Id: If15f2f0e2b4627318c9cdfbc76d5ca56a6894e3f
Reviewed-on: https://boringssl-review.googlesource.com/4270
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-04-08 20:27:58 +00:00
David Benjamin
4b1510c71e Fix a failure to NULL a pointer freed on error.
Reported by the LibreSSL project as a follow on to CVE-2015-0209

(Imported from upstream's 5e5d53d341fd9a9b9cc0a58eb3690832ca7a511f.)

Change-Id: Ic2e5dc5c96e316c55f76bedc6ea55b416be3287a
Reviewed-on: https://boringssl-review.googlesource.com/4049
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 19:50:32 +00:00
David Benjamin
5ae21bc02b Remove pointless free, and use preferred way of calling d2i_* functions
(Imported from upstream's 535bc8faf69dc4ff39e2ee99195b268cf99b9569)

Change-Id: Ia5abf4dce9dc8cdf5a9b77a3e360a40b5f815adf
Reviewed-on: https://boringssl-review.googlesource.com/3672
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 19:47:36 +00:00
David Benjamin
29b50eab6c Align d2i_ECPrivateKey error-handling with upstream.
Upstream decided to make the caller free the scratch space rather than the
callee. May as well match. (Existing code is pretty inconsistent. This API
pattern needs to go.)

See upstream's 9e442d485008046933cdc7da65080f436a4af089.

Change-Id: I7c9fcae5778a74d6ae8e9f546e03fb2cf6e48426
Reviewed-on: https://boringssl-review.googlesource.com/3671
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 19:45:42 +00:00
David Benjamin
114ddebbf6 Unexport EC_GROUP_copy.
EC_GROUP_copy is an rather unfriendly function; it doesn't work if the groups
have different[*] underlying EC_METHODs, but this notion is not exposed through
the API. I found no callers of EC_GROUP_copy in external code.

This leaves the precompute_mult functions as the remaining mutable API exposed
through EC_GROUP.

[*] Though, of the two EC_METHODs right now, simple.c is entirely unused.

Change-Id: Iabb52518005250fb970e12b3b0ea78b4f6eff4a0
Reviewed-on: https://boringssl-review.googlesource.com/3631
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 19:43:02 +00:00
David Benjamin
03741f61d9 Use EC_GROUP_dup and EC_POINT_dup in EC_KEY_copy.
They do the same thing. This removes all callers of EC_GROUP_copy outside
EC_GROUP_dup.

Change-Id: I65433ee36040de79e56483dfece774e01e2e2743
Reviewed-on: https://boringssl-review.googlesource.com/3630
Reviewed-by: Adam Langley <agl@google.com>
2015-02-25 21:44:24 +00:00
Adam Langley
7c21925a10 EC_GROUP_cmp should return zero if the groups match.
(I got this wrong when reading the OpenSSL code.)

Change-Id: Ib289ef41d0ab5a3157ad8b9454d2de96d1f86c22
Reviewed-on: https://boringssl-review.googlesource.com/3620
Reviewed-by: Adam Langley <agl@google.com>
2015-02-25 21:13:02 +00:00
Adam Langley
93531bd70f Add the CTX parameter back to EC_GROUP_cmp.
It was a mistake to remove this in the first place.

Change-Id: Icd97b4db01e49151daa41dd892f9da573ddc2842
Reviewed-on: https://boringssl-review.googlesource.com/3541
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:33:55 +00:00
David Benjamin
c35fb014d9 Fix more memory leaks on malloc failure.
Caught by malloc valgrind tests on Basic-Client-Sync. Also one by inspection
and verified with valgrind. Those should pass now with the exception of
CRYPTO_free_ex_data being internally implemented with malloc.

(Clearly we next should make our malloc tests assert that the containing
function fails to catch when we fail to check for some error and things
silently move one.)

Change-Id: I56c51dc8a32a7d3c7ac907d54015dc241728c761
Reviewed-on: https://boringssl-review.googlesource.com/3440
Reviewed-by: Adam Langley <agl@google.com>
2015-02-13 18:43:01 +00:00
David Benjamin
9ab14e00d5 Add in missing curly braces part 2.
ECC code.

Change-Id: I1a960620edbb30e10dcbab0e8053a1deb9db3262
Reviewed-on: https://boringssl-review.googlesource.com/3402
Reviewed-by: Adam Langley <agl@google.com>
2015-02-11 23:14:04 +00:00
Adam Langley
29b186736c Precompute sorted array for error strings.
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
2015-02-09 17:35:31 -08:00
Adam Langley
2b2d66d409 Remove string.h from base.h.
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>
2015-02-02 19:14:15 +00:00
Adam Langley
4a0f0c4910 Change CMakeLists.txt to two-space indent.
find -name CMakeLists.txt -type f | xargs sed -e 's/\t/  /g' -i

Change-Id: I01636b1849c00ba918f48828252492d99b0403ac
2015-01-28 16:37:10 -08:00
Eric Roman
517073cd4b Set output EC_KEY to NULL when d2i_ECPrivateKey() fails.
BUG=crbug.com/445679

Change-Id: Ia012d806964bd7240148779797eccd326484f364
Reviewed-on: https://boringssl-review.googlesource.com/2722
Reviewed-by: Adam Langley <agl@google.com>
2015-01-06 00:55:19 +00:00
Håvard Molland
3547688ee0 Remove EC_GROUP_set_point_conversion_form
All serialization functions take point format as input, and
asn1_form is never used.

Change-Id: Ib1ede692e815ac0c929e3b589c3a5869adb0dc8b
Reviewed-on: https://boringssl-review.googlesource.com/2511
Reviewed-by: Adam Langley <agl@google.com>
2014-12-09 18:47:03 +00:00
Håvard Molland
306e520cda Remove ec hybrid point format
According to rfc5480 and rfc4492 the hybrid format is not allowed
neither in certificates or the tls protocol.

Change-Id: I1d3fb5bef765bc7b58d29bdd60e15247fac4dc7a
Reviewed-on: https://boringssl-review.googlesource.com/2510
Reviewed-by: Adam Langley <agl@google.com>
2014-12-08 22:47:41 +00:00
David Benjamin
3087f6e594 Fix garbage free on malloc failure in ec_wNAF_mul.
PR#3595

(Imported from upstream's e04d426bf98ebb22abf0f15b6f09d333a6e8b2ad.)

Change-Id: I01a9d9bef7e911b3fb1565f8a582f5d6cc7d5537
Reviewed-on: https://boringssl-review.googlesource.com/2290
Reviewed-by: Adam Langley <agl@google.com>
2014-11-14 18:47:41 +00:00
David Benjamin
2f3ba910a2 Fix ec_test build on Windows.
No need to include unistd.h. (Though it probably should include string.h for
memcmp and strcmp.)

Change-Id: Ib09d2da4f7079c9d87338df75ec3560f4f203764
Reviewed-on: https://boringssl-review.googlesource.com/2260
Reviewed-by: Adam Langley <agl@google.com>
2014-11-12 19:39:55 +00:00
David Benjamin
f2f3cfedb7 Use BN_bn2bin_padded rather than doing math to figure out leading zeros.
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>
2014-11-10 23:04:52 +00:00
Adam Langley
9398f168f9 Explicitly check for empty ASN.1 strings in d2i_ECPrivateKey.
The old code implicitly relies on the ASN.1 code returning a \0-prefixed
buffer when the buffer length is 0. Change this to verify explicitly
that the ASN.1 string has positive length.

(Imported from upstream's 7f7c05ca638c3cc6d261961fae439cd91e3c1d27)

Change-Id: Icc6c44b874bdcb02374016a36d209830d6162a8a
2014-11-10 13:45:32 -08:00
Adam Langley
9f5a314d35 Automatically generate a missing EC public key.
When d2i_ECPrivateKey reads a private key with a missing (optional)
public key, generate one automatically from the group and private key.

(Imported from upstream's 2083f7c465d07867dd9867b8742bb71c03d1f203)

Change-Id: I9e5090de87cf846ab92e4be5b6bf64e6091d02e4
2014-11-10 13:45:31 -08:00
David Benjamin
9ecafa5c78 Shush some dead assignments.
Appease clang scan-build a bit. I'm not sure it's actually worth silencing all
of them because some of them look like preserving invariants between local
variables, but some are clearly pointless or can be restructured slightly.

Change-Id: I0bc81e2589bb402ff3ef0182d7a8921e31b85052
Reviewed-on: https://boringssl-review.googlesource.com/2205
Reviewed-by: Adam Langley <agl@google.com>
2014-11-06 01:34:33 +00:00
Adam Langley
404e6e64d0 Small tweak to ec_GFp_simple_points_make_affine.
(Imported from upstream's 267e6f3cc0ef78dea4e5cf93907a71556a45f008)

Change-Id: I99cfd0196b9625449c50494562c44f57f09fed17
Reviewed-on: https://boringssl-review.googlesource.com/2167
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-11-05 21:26:04 +00:00
David Benjamin
775b75f9de Fix Windows shared library build.
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>
2014-10-01 02:01:53 +00:00
David Benjamin
a70c75cfc0 Add a CRYPTO_library_init and static-initializer-less build option.
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>
2014-09-12 00:10:53 +00:00
Adam Langley
b2cb0ece76 Fix minor issues found by Clang's analysis.
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>
2014-09-02 22:39:41 +00:00
Adam Langley
0eb1aae207 Readd EC_GROUP_get_curve_GFp.
wpa_supplicant needs this in order to get the order of the coordinate
field, apparently so that they can hash to a point.

Change-Id: I92d5df7b37b67ace5f497c25f53f16bbe134aced
Reviewed-on: https://boringssl-review.googlesource.com/1622
Reviewed-by: Adam Langley <agl@google.com>
2014-08-26 21:52:12 +00:00
David Benjamin
c44d2f4cb8 Convert all zero-argument functions to '(void)'
Otherwise, in C, it becomes a K&R function declaration which doesn't actually
type-check the number of arguments.

Change-Id: I0731a9fefca46fb1c266bfb1c33d464cf451a22e
Reviewed-on: https://boringssl-review.googlesource.com/1582
Reviewed-by: Adam Langley <agl@google.com>
2014-08-21 01:06:07 +00:00
Adam Langley
993fde5162 Simplify ec_GFp_simple_points_make_affine.
Replace the tree-like structure by a linear approach, with fewer special
cases to handle value 0.

(Imported from upstream's d5213519c0ed87c71136084e7e843a4125ecc024.)

Change-Id: Icdd4815066bdbab0d2c0020db6a8cacc49b3d82a
Reviewed-on: https://boringssl-review.googlesource.com/1400
Reviewed-by: Adam Langley <agl@google.com>
2014-08-05 21:22:38 +00:00
Adam Langley
d82d79dffe "EC_POINT_invert" was checking "dbl" function pointer instead of "invert".
PR#2569

(Imported from upstream's 4ccc2c19e299741c8e0a8678a13f40e032709e9c)

Change-Id: Id6f5181ea99401145d7b3c4074b292cae8a1c660
2014-07-28 17:05:14 -07:00
Adam Langley
c0d9484902 ec: recognise known parameters when written in full.
Some EC ASN.1 structures are using a named curve, but include the full
parameters anyway. With this change, BoringSSL will recognise the order
of the curve.

Change-Id: Iff057178453f9fdc98c8c03bcabbccef89709887
Reviewed-on: https://boringssl-review.googlesource.com/1270
Reviewed-by: Adam Langley <agl@google.com>
2014-07-19 00:03:13 +00:00
David Benjamin
ecc0ce7e67 Introduce EVP_PKEY_is_opaque to replace RSA_METHOD_FLAG_NO_CHECK.
Custom RSA and ECDSA keys may not expose the key material. Plumb and "opaque"
bit out of the *_METHOD up to EVP_PKEY. Query that in ssl_rsa.c to skip the
sanity checks for certificate and key matching.

Change-Id: I362a2d5116bfd1803560dfca1d69a91153e895fc
Reviewed-on: https://boringssl-review.googlesource.com/1255
Reviewed-by: Adam Langley <agl@google.com>
2014-07-18 23:35:04 +00:00
Adam Langley
4c921e1bbc Move public headers to include/openssl/
Previously, public headers lived next to the respective code and there
were symlinks from include/openssl to them.

This doesn't work on Windows.

This change moves the headers to live in include/openssl. In cases where
some symlinks pointed to the same header, I've added a file that just
includes the intended target. These cases are all for backwards-compat.

Change-Id: I6e285b74caf621c644b5168a4877db226b07fd92
Reviewed-on: https://boringssl-review.googlesource.com/1180
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-07-14 22:42:18 +00:00
Adam Langley
cdf96e5886 Double free in i2o_ECPublicKey
PR: 3338

(Imported from upstream's e34af3ec2b1230a8a523d383f7de505f7cbd381d)
2014-06-20 13:17:40 -07:00
Adam Langley
aeb088ac09 EC infinity fix.
Fix handling of points at infinity in ec_GFp_simple_points_make_affine.
When inverting an array of Z coordinates, the algorithm is supposed to
treat any 0 essentially like a 1 to remain in the multiplicative group;
however, for one of the cases, we incorrectly multiplied by 0 and thus
ended up with garbage.
2014-06-20 13:17:36 -07:00
Adam Langley
f71a27920a Fix EC crash.
This change saves several EC routines from crashing when an EC_KEY is
missing a public key. The public key is optional in the EC private key
format and, without this patch, running the following through `openssl
ec` causes a crash:

-----BEGIN EC PRIVATE KEY-----
MBkCAQEECAECAwQFBgcIoAoGCCqGSM49AwEH
-----END EC PRIVATE KEY-----
2014-06-20 13:17:34 -07:00
Adam Langley
95c29f3cd1 Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)
2014-06-20 13:17:32 -07:00