Commit Graph

1686 Commits

Author SHA1 Message Date
Adam Langley
23b460df02 Add #ifdefs so RSAZ is only built on x86-64.
Change-Id: I5ec6b59e75120029348ce71c76e49a2d6e010913
2014-07-08 15:27:43 -07:00
Alex Chernyakhovsky
3c5034e97c Remove OPENSSL_NO_RSA
Building without RSA support is unreasonable. Changes were made by
running

find . -type f -name *.c | xargs unifdef -m -U OPENSSL_NO_RSA
find . -type f -name *.h | xargs unifdef -m -U OPENSSL_NO_RSA

using unifdef 2.10 and some newlines were removed manually.

Change-Id: Iea559e2d4b3d1053f28a4a9cc2f7a3d1f6cabd61
Reviewed-on: https://boringssl-review.googlesource.com/1095
Reviewed-by: Adam Langley <agl@google.com>
2014-07-07 20:20:53 +00:00
Alex Chernyakhovsky
2897ed3634 Remove CHARSET_EBCDIC
Since crypto/ebcdic.{c,h} are not present in BoringSSL, remove the #ifdefs
Changes were made by running

find . -type f -name *.c | xargs unifdef -m -U CHARSET_EBCDIC
find . -type f -name *.h | xargs unifdef -m -U CHARSET_EBCDIC

using unifdef 2.10.

An additional two ifdefs (CHARSET_EBCDIC_not) were removed manually.

Change-Id: Ie174bb00782cc44c63b0f9fab69619b3a9f66d42
Reviewed-on: https://boringssl-review.googlesource.com/1093
Reviewed-by: Adam Langley <agl@google.com>
2014-07-07 19:30:35 +00:00
David Benjamin
d970488862 Typo in EVP_PKEY_asn1_find_str.
Other importing an EC PRIVATE KEY doesn't work.

Change-Id: I58b4e88d287cd7fc772a1958df5878ecff1c5b06
Reviewed-on: https://boringssl-review.googlesource.com/1090
Reviewed-by: Adam Langley <agl@google.com>
2014-07-02 21:06:57 +00:00
Adam Langley
7ac79ebe55 The asm files bn/asm/x86* weren't actually used.
(This appears to be the case with upstream too, it's not that BoringSSL
is missing optimisations from what I can see.)

Change-Id: I0e54762ef0d09e60994ec82c5cca1ff0b3b23ea4
Reviewed-on: https://boringssl-review.googlesource.com/1080
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-07-02 00:29:12 +00:00
Adam Langley
4042667eb9 Add ERR_get_next_error_library back.
It was removed in the fork but it turned out to need it.

Change-Id: I21030c8d5befecb63f2c40a59963bec1da1d96fb
Reviewed-on: https://boringssl-review.googlesource.com/1081
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-07-02 00:11:32 +00:00
Adam Langley
8a09146b87 Add license to charmap.pl.
I have confirmed with Dr. Stephen Henson (the author) that the file is
licensed under the OpenSSL license.

Change-Id: I97dc4c74b363184e1b36e5835bad684d66696d54
2014-06-30 16:48:53 -07:00
Adam Langley
45ec21b99c Add stitched RC4-MD5 as an AEAD.
This change adds the stitched RC4-MD5 code from upstream OpenSSL but
exposes it as an AEAD. It's not a normal AEAD (it's stateful thus
doesn't take an nonce) but forcing pre-AEAD cipher suites in the AEAD
interface is less painful than forcing AEADs into the EVP_CIPHER
interface. Over time, more and more cipher suites will be exposed as
TLS-specific AEADs and then ssl/ can drop support for EVP_CIPHER.

See original code from upstream:
https://github.com/openssl/openssl/blob/master/crypto/evp/e_rc4_hmac_md5.c

Change-Id: Ia9267b224747f02be6b934ea0b2b50e1f529fab9
Reviewed-on: https://boringssl-review.googlesource.com/1043
Reviewed-by: Adam Langley <agl@google.com>
2014-06-30 23:01:17 +00:00
Adam Langley
5d17dd64cc Very minor BN fixes.
Fixes one comment that mentioned the wrong function name. Also causes
two BN random functions to fail when the output is NULL. Previously they
would silently do nothing.

Change-Id: I89796ab855ea32787765c301a478352287e61190
2014-06-30 14:22:32 -07:00
David Benjamin
03973096f4 Port ServerHello extension parsing to CBS.
This gives us systematic bounds-checking on all the parses. Also adds a
convenience function, CBS_memdup, for saving the current contents of a CBS.

Change-Id: I17dad74575f03121aee3f771037b8806ff99d0c3
Reviewed-on: https://boringssl-review.googlesource.com/1031
Reviewed-by: Adam Langley <agl@google.com>
2014-06-26 20:42:27 +00:00
Adam Langley
8adf4f1d89 Merge "Remove references to AEAD in non-AEAD interface codepath" 2014-06-26 00:59:49 +00:00
Adam Langley
659de419c1 Add ISC header to a handful of files.
A handful of new files were missing the ISC license header.

Change-Id: I44507dd1361b0348d8e0e1bf12d38072030af53d
2014-06-26 10:26:42 -07:00
Victor Vasiliev
508c29fec9 Remove references to AEAD in non-AEAD interface codepath
Since all AEAD ciphers now go through EVP_AEAD interface, the code which
uses EVP_Cipher interface no longer needs any of AEAD handling logic.

This also removes EVP_CTRL_AEAD_TLS1_AAD from GCM interface, which was
duplicating non-TLS-specific GCM logic and is not used anymore.

Change-Id: I5ddae880e7bc921337f9149a0acfdd00c9a478c3
2014-06-25 15:56:05 -04:00
Adam Langley
d54dc249ea Run AEAD test cases at the end of a file.
aead_test reads test vectors from a file but used blank lines to
indicate the end of a test case. If the file ended without a blank line
to terminate the final test case, it would previously have been skipped.

Change-Id: Id8dd34e86f0b912596dfb33234a894f8d9aa0235
2014-06-24 17:00:54 -07:00
Adam Langley
54cdd120aa Merge "Include some build fixes for OS X." 2014-06-24 18:01:32 +00:00
Adam Langley
30eda1d2b8 Include some build fixes for OS X.
Apart from the obvious little issues, this also works around a
(seeming) libtool/linker:

a.c defines a symbol:

int kFoo;

b.c uses it:

extern int kFoo;

int f() {
  return kFoo;
}

compile them:

$ gcc -c a.c
$ gcc -c b.c

and create a dummy main in order to run it, main.c:

int f();

int main() {
  return f();
}

this works as expected:

$ gcc main.c a.o b.o

but, if we make an archive:

$ ar q lib.a a.o b.o

and use that:

$ gcc main.c lib.a
Undefined symbols for architecture x86_64
  "_kFoo", referenced from:
    _f in lib.a(b.o)

(It doesn't matter what order the .o files are put into the .a)

Linux and Windows don't seem to have this problem.

nm on a.o shows that the symbol is of type "C", which is a "common symbol"[1].
Basically the linker will merge multiple common symbol definitions together.

If ones makes a.c read:

int kFoo = 0;

Then one gets a type "D" symbol - a "data section symbol" and everything works
just fine.

This might actually be a libtool bug instead of an ld bug: Looking at `xxd
lib.a | less`, the __.SYMDEF SORTED index at the beginning of the archive
doesn't contain an entry for kFoo unless initialised.

Change-Id: I4cdad9ba46e9919221c3cbd79637508959359427
2014-06-24 11:15:12 -07:00
Adam Langley
3f4e13c7da Fix GCM in non-AESNI mode.
GCM was broken in non-AESNI mode because I fluffed a #define when
moving gcm128.c across.

Change-Id: I66d5fed6a3d83d641da55c5ca434f17db0d89237
2014-06-24 11:00:27 -07:00
David Benjamin
95463b311d Remove crypto/comp and SSL_COMP support code.
Now that the consuming code in ssl/ is removed, there is no need for this.
Leave SSL_COMP and STACK_OF(SSL_COMP) for now so as not to break any code which
manipulates the output of SSL_COMP_get_compression_methods to disable
compression.

Change-Id: Idf0a5debd96589ef6e7e56acf5d9259412b7d7a1
2014-06-24 17:22:06 +00:00
Adam Langley
7410689a30 Generate (EC)DSA nonces with truncate/test/reject.
Previously we generated a number that was 8 bytes too large and used a
modular reduction, which has a (tiny, tiny) bias towards zero.

Out of an excess of caution, instead truncate the generated nonce and
try again if it's out of range.

Change-Id: Ia9a7a57dd6d3e5f13d0b881b3e9b2e986d46e4ca
2014-06-23 15:41:44 -07:00
Adam Langley
d031f11596 Remove |num_rounds| argument from chacha_core.
The function was hard-coded to 20 rounds already so the argument was
already useless. Thanks to Huzaifa Sidhpurwala for noticing.

Change-Id: I5f9d6ca6d46c6ab769b19820f8f918349544846d
2014-06-23 13:14:13 -07:00
Adam Langley
4ac0b38cfc Try both old and new X.509 hashes.
Ensure the library can find the right files under /etc/ssl/certs when
running on older systems.

There are many symbolic links under /etc/ssl/certs created by using
hash of the PEM certificates in order for OpenSSL to find those
certificates. Openssl has a tool to help you create hash symbolic
links (tools/c_rehash). However newer versions of the library changed
the hash algorithm, which makes it unable to run properly on systems
that use the old /etc/ssl/certs layout (e.g. Ubuntu Lucid).

This patch gives a way to find a certificate according to its hash by
using both the old and new algorithms. http://crbug.com/111045 is used
to track this issue.

(Imported from Chromium:
http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/openssl/patches.chromium/0003-x509_hash_name_algorithm_change.patch?revision=231571)

Change-Id: Idbc27aba7685c991f8b94cfea38cf4f3f4b38adc
2014-06-20 15:31:01 -07:00
Adam Langley
3ffd70ec36 crypto/sha/asm/sha[1,512]-x86_64.pl: Windows build
This change stops the Intel, SHA instruction code from breaking the
Windows build.
2014-06-20 13:17:43 -07:00
Adam Langley
b0d5fb6c74 Add OPENSSL_str[n]casecmp
Windows has different names for these functions and also doesn't have
the strings.h header in which they appear.

This change adds tiny wrapper functions for Windows.
2014-06-20 13:17:43 -07:00
Adam Langley
464f3a147c Enforce _X509_CHECK_FLAG_DOT_SUBDOMAINS internal-only
(Imported from upstream's cfbc10fb327cf8535d6e9b402d1d03140d23d753)
2014-06-20 13:17:43 -07:00
Adam Langley
956665b32b sha1-x86_64.pl: add missing rex prefix in shaext.
PR: 3405

(Imported from upstream's 1f6d2076256761b44e7336b496ab0887f90cea69)
2014-06-20 13:17:42 -07:00
Adam Langley
8241005bfa Client-side namecheck wildcards.
A client reference identity of ".example.com" matches a server certificate
presented identity that is any sub-domain of "example.com" (e.g.
"www.sub.example.com).

With the X509_CHECK_FLAG_SINGLE_LABEL_SUBDOMAINS flag, it matches only direct
child sub-domains (e.g. "www.sub.example.com"). (cherry picked from commit
e52c52f10bb8e34aaf8f28f3e5b56939e8f6b357)

(Imported from upstream's 3cc8a3f2343cda796de90c127b9e907ca3ec2da5)
2014-06-20 13:17:42 -07:00
Adam Langley
006779a02c Add benchmarks for hash functions to bssl speed. 2014-06-20 13:17:42 -07:00
Adam Langley
cb5dd63e5e Add support for Intel SHA extension.
(Imported from upstream's 70fddbe32a7b3400a6ad0a9265f2c0ed72988d27)
2014-06-20 13:17:42 -07:00
Adam Langley
20c57547d0 ghash-x86_64.pl: optimize for upcoming Atom.
(Imported from upstream's 66aeaec067680e4a4ab956dcf30a295aaba07e2c)
2014-06-20 13:17:42 -07:00
Adam Langley
a09d2127ea Set default global mask to UTF8 only.
(Imported from upstream's 08b172b975bcd5854f9201b9f89d05dc330adb79)
2014-06-20 13:17:41 -07:00
Adam Langley
467c87e318 remove duplicate 0x for default RSASSA-PSS salt len
(Imported from upstream's 42d73874edb4eb6681b769d9850afebe97adf329)
2014-06-20 13:17:40 -07:00
Adam Langley
dc160f84f5 Fixes to host checking.
Fixes to host checking wild card support and add support for setting
host checking flags when verifying a certificate chain.

(Imported from upstream's a2219f6be36d12f02b6420dd95f819cf364baf1d)
2014-06-20 13:17:40 -07:00
Adam Langley
3e449b1b05 Don't allocate more than is needed in BUF_strndup()
(Imported from upstream's 4ceb430a468e8226175aa3f169c0e746877c17e1,
4f7236edc7d5c384bdb148faf7b23f887cf18f69 and
ed693e43329383c0d68455d83778cdc9748a074d)
2014-06-20 13:17:40 -07:00
Adam Langley
c8e91d5798 bignum: allow concurrent BN_MONT_CTX_set_locked()
The lazy-initialisation of BN_MONT_CTX was serialising all threads, as noted by
Daniel Sands and co at Sandia. This was to handle the case that 2 or more
threads race to lazy-init the same context, but stunted all scalability in the
case where 2 or more threads are doing unrelated things! We favour the latter
case by punishing the former. The init work gets done by each thread that finds
the context to be uninitialised, and we then lock the "set" logic after that
work is done - the winning thread's work gets used, the losing threads throw
away what they've done.

(Imported from upstream's bf43446835bfd3f9abf1898a99ae20f2285320f3)
2014-06-20 13:17:40 -07:00
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
eceb33d3af bignum: fix boundary condition in montgomery logic
It's not clear whether this inconsistency could lead to an actual
computation error, but it involved a BIGNUM being passed around the
montgomery logic in an inconsistent state. This was found using flags
-DBN_DEBUG -DBN_DEBUG_RAND, and working backwards from this assertion
in 'ectest';

ectest: bn_mul.c:960: BN_mul: Assertion `(_bnum2->top == 0) ||
(_bnum2->d[_bnum2->top - 1] != 0)' failed

(Imported from upstream's 3cc546a3bbcbf26cd14fc45fb133d36820ed0a75)
2014-06-20 13:17:40 -07:00
Adam Langley
6a57f92195 bn/asm/armv4-gf2m.pl, modes/asm/ghash-armv4.pl: faster multiplication algorithm suggested in following paper:
Câmara, D.; Gouvêa, C. P. L.; López, J. & Dahab, R.: Fast Software
Polynomial Multiplication on ARM Processors using the NEON Engine.

http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf

(Imported from upstream's 0fb3d5b4fdc76b8d4a4700d03480cda135c6c117)
2014-06-20 13:17:40 -07:00
Adam Langley
89b73fbafa aes/asm/bsaes-x86_64.pl: Atom-specific optimization.
(Imported from upstream's ffdff9f12f028e4075b473a2a21e51c5bcc2bbd9)
2014-06-20 13:17:40 -07:00
Adam Langley
548523fd5e Extension checking fixes.
When looking for an extension we need to set the last found
position to -1 to properly search all extensions.

PR#3309

(Imported from upstream's 5cd5e0219d2e9a8c1f2fec3d867f38179c3a86af)
2014-06-20 13:17:40 -07:00
Adam Langley
45ba42a94c vpaes-[x86_64|ppc].pl: fix typo, which for some reason triggers rkhunter.
(Imported from upstream's dacb698ada2579bccfc3d88662f8cca75fb1b9aa)
2014-06-20 13:17:39 -07:00
Adam Langley
e2c2f60c44 Don't try and verify signatures if key is NULL (CVE-2013-0166)
Add additional check to catch this in ASN1_item_verify too.

(Imported from upstream's e9b4b8afbd129adc18d3fe71ca2ab34fe61d8640)
2014-06-20 13:17:39 -07:00
Adam Langley
33685b82ec dh/check.c: check BN_CTX_get's return value.
(Imported from upstream's fe69e6be6e551c04d9d6a186c7fee1e635313ca6)
2014-06-20 13:17:39 -07:00
Adam Langley
e0ddf2706a For self signed root only indicate one error.
(Imported from upstream's bdfc0e284c89dd5781259cc19aa264aded538492.)
2014-06-20 13:17:39 -07:00
Adam Langley
8f5b6b9b0f perlasm/x86asm.pl: recognize elf-1 denoting old ELF platforms.
(Imported from upstream's ca88a1d439f72f124d0f23e2d130e56bbcbb93a9)
2014-06-20 13:17:39 -07:00
Adam Langley
9612b766ae perlasm/x86gas.pl: limit special OPENSSL_ia32cap_P treatment to ELF.
(Imported from upstream's 5615196f7bd467f1e56e275bf740a62caa04d107.)
2014-06-20 13:17:39 -07:00
Adam Langley
9a7cb38882 rc4/asm/rc4-586.pl: allow for 386-only build.
(Imported from upstream's 1f59eb5f111149eb0cf5cdc2b378cfa0fbdfa9c3)
2014-06-20 13:17:39 -07:00
Adam Langley
43134282d0 sha/asm/sha256-586.pl: don't try to compile SIMD with no-sse2.
(Imported from upstream's d00ae7cf7019847c5d35728b01b22461a01bb336)
2014-06-20 13:17:39 -07:00
Adam Langley
bd97c20c77 sha/asm/sha512-x86_64.pl: fix compilation error on Solaris.
(Imported from upstream's f92926e33175b0ef874244ba7d66dd987a862750)
2014-06-20 13:17:39 -07:00
Adam Langley
c83b1ceae2 x509/by_dir.c: fix run-away pointer.
fix run-away pointer (and potential SEGV) when adding duplicates in
add_cert_dir.

PR: 3261
Reported by: Marian Done

(Imported from upstream's 83fe7b9c8321d5ffb6bfe67df85ed66ceb97102f)
2014-06-20 13:17:38 -07:00
Adam Langley
5685363771 aes/asm/aesni-x86[_64].pl: minor Atom-specific performance tweak.
(Imported from upstream's 2d4d9623da229162ad4377174526af3c01b1707a)
2014-06-20 13:17:38 -07:00
Adam Langley
114a711f8b aes/asm/aesni-x86_64.pl: further optimization for Atom Silvermont.
Improve CBC decrypt and CTR by ~13/16%, which adds up to ~25/33%
improvement over "pre-Silvermont" version. [Add performance table to
aesni-x86.pl].

(Imported from upstream's b347341c75656cf8bc039bd0ea5e3571c9299687)
2014-06-20 13:17:38 -07:00
Adam Langley
a993a70d6d Include self-signed flag in certificates.
Include self-signed flag in certificates by checking SKID/AKID as well as
issuer and subject names. Although this is an incompatible change it should
have little impact in pratice because self-issued certificates that are not
self-signed are rarely encountered.

(Imported from upstream's c00f8d697aed17edbd002e2f6c989d8fbd7c4ecf)
2014-06-20 13:17:38 -07:00
Adam Langley
ec72cf5a1c Include TA in checks/callback with partial chains.
When a chain is complete and ends in a trusted root checks are also performed
on the TA and the callback notified with ok==1. For consistency do the same for
chains where the TA is not self signed.

(Imported from upstream's b07e4f2f46fc286c306353d5e362cbc22c8547fb)
2014-06-20 13:17:38 -07:00
Adam Langley
35163dc925 Add cert_self_signed function to simplify verify.
(Imported from upstream's ced6dc5cefca57b08e077951a9710c33b709e99e)
2014-06-20 13:17:38 -07:00
Adam Langley
a216d03d0e Simplify X509_STORE_CTX_get1_chain.
(Imported from upstream's bf2d129194d5a8f2ccf5ff5261ab755e4fc9f98e)
2014-06-20 13:17:38 -07:00
Adam Langley
d81f801f6d ghash-x86[_64].pl: ~15% improvement on Atom Silvermont
(other processors unaffected).

(Imported from upstream's 7078d93307d795cec577ec4a792b72fffed551ab)
2014-06-20 13:17:38 -07:00
Adam Langley
6d43d0c4d6 Add extension free function.
(Imported from upstream's 984a30423d70126ed1df30e4b52962398cdaa9b6.)
2014-06-20 13:17:38 -07:00
Adam Langley
29db55944b Remove redundant accessor.
You can do the same thing, and more, with X509_ALGOR_[gs]et0().

(Imported from upstream's 40b0d0765ec8d34654be099456dc1dfb6e1bd3ff)
2014-06-20 13:17:37 -07:00
Adam Langley
7b29449086 AES-NI asm update from master.
(Imported from upstream's 5572bc4e2fb485c0d85bd5b4ec430ae0af65f7ea)
2014-06-20 13:17:37 -07:00
Adam Langley
5c6ca976c8 Update SHA asm from master.
(Imported from upstream's 729d334106e6ef3a2b2f4f9cb2520669a07ae79d)
2014-06-20 13:17:37 -07:00
Adam Langley
bdf8acc2d2 Add more accessors.
(Imported from upstream's cacdfcb2479984d9bfcc79b623118d8af6fea169)
2014-06-20 13:17:37 -07:00
Adam Langley
b152b3d4ed Add accessor for x509.cert_info.
(Imported from upstream's 519ad9b3845c475d29db8b84b59bde7edecb4e70.)
2014-06-20 13:17:37 -07:00
Adam Langley
6887edb917 Improvements in constant-time OAEP decoding.
This change adds a new function, BN_bn2bin_padded, that attempts, as
much as possible, to serialise a BIGNUM in constant time.

This is used to avoid some timing leaks in RSA decryption.
2014-06-20 13:17:37 -07:00
Adam Langley
cd8128d618 This change merges upstream's updated ppc-xlate.pl. 2014-06-20 13:17:37 -07:00
Adam Langley
01797e309f psk_client_callback, 128-byte id bug.
Fix a bug in handling of 128 byte long PSK identity in
psk_client_callback.

OpenSSL supports PSK identities of up to (and including) 128 bytes in
length. PSK identity is obtained via the psk_client_callback,
implementors of which are expected to provide a NULL-terminated
identity. However, the callback is invoked with only 128 bytes of
storage thus making it impossible to return a 128 byte long identity and
the required additional NULL byte.

This CL fixes the issue by passing in a 129 byte long buffer into the
psk_client_callback. As a safety precaution, this CL also zeroes out the
buffer before passing it into the callback, uses strnlen for obtaining
the length of the identity returned by the callback, and aborts the
handshake if the identity (without the NULL terminator) is longer than
128 bytes.
2014-06-20 13:17:37 -07:00
Adam Langley
64bda23cad Base64 padding fix.
https://rt.openssl.org/Ticket/Display.html?id=2608

Previously, this input to the base64 code:

================================================================================-

Would cause the output length of EVP_DecodeUpdate to be negative. When
that happened in the base64 BIO, it would crash. In PEM decoding, the
ASN.1 code actually maintains signed lengths and manages to simply error
out!
2014-06-20 13:17:36 -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
735107652b Const correctness.
This change fixes a number of build warnings.
2014-06-20 13:17:36 -07:00
Adam Langley
77b7e63311 Adjust stack pointer in AES-NI CBC decryption.
This change adjusts the stack pointer during CBC decryption. The code
was previously using the red zone across function calls and valgrind
thinks that the "unused" stack is undefined after a function call.
2014-06-20 13:17:35 -07:00
Adam Langley
409766d218 Add function to recover RSA CRT params.
Some RSA private keys are specified with only n, e and d. Although we
can use these keys directly, it's nice to have a uniform representation
that includes the precomputed CRT values. This change adds a function
that can recover the primes from a minimal private key of that form.
2014-06-20 13:17:35 -07:00
Adam Langley
de0b202684 ChaCha20-Poly1305 support. 2014-06-20 13:17:35 -07:00
Adam Langley
dfe3053086 AEAD tests. 2014-06-20 13:17:34 -07:00
Adam Langley
fd772a5aeb AEAD interface.
This change adds an AEAD interface to EVP and an AES-GCM implementation
suitable for use in TLS.
2014-06-20 13:17:34 -07:00
Adam Langley
acff73f227 Constant-time, RSA PMS processing.
This change alters the processing of invalid, RSA pre-master secrets so
that bad encryptions are treated like random session keys in constant
time.
2014-06-20 13:17:34 -07:00
Adam Langley
7d0a1d680c Fix padding side-channels.
This patch tweaks the OAEP padding check to be slightly more constant
time and rewrites the PKCS#1 v1.5 padding check to the same end.
2014-06-20 13:17:34 -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
27ae9ed774 Small prime generation.
Ensure that, when generating small primes, the result is actually of the
requested size. Fixes OpenSSL #2701.

This change does not address the cases of generating safe primes, or
where the |add| parameter is non-NULL.
2014-06-20 13:17:34 -07:00
Adam Langley
61bb3ddfab Ensure that x**0 mod 1 = 0. 2014-06-20 13:17:34 -07:00
Adam Langley
ebebf87d6d Add needed volatile qualifications.
Add volatile qualifications to two blocks of inline asm to stop GCC from
eliminating them as dead code.
2014-06-20 13:17:33 -07:00
Adam Langley
d4b4f085d9 Safe (EC)DSA nonces.
This change causes (EC)DSA nonces be to calculated by hashing the
message and private key along with entropy.
2014-06-20 13:17:33 -07:00
Adam Langley
6aea58d0ea Check for invalid divisors in BN_div. 2014-06-20 13:17:33 -07:00
Adam Langley
1258b6a756 ChannelID support.
Implement ChannelID as both a client and server.
2014-06-20 13:17:33 -07:00
Adam Langley
75b833cc81 OpenSSL: make final reduction in Montgomery multiplication constant-time.
(The issue was reported by Shay Gueron.)

The final reduction in Montgomery multiplication computes if (X >= m) then X =
X - m else X = X

In OpenSSL, this was done by computing T = X - m,  doing a constant-time
selection of the *addresses* of X and T, and loading from the resulting
address. But this is not cache-neutral.

This patch changes the behaviour by loading both X and T into registers, and
doing a constant-time selection of the *values*.

TODO(fork): only some of the fixes from the original patch still apply to
the 1.0.2 code.
2014-06-20 13:17:33 -07:00
Adam Langley
b36a3156b6 Add another bn modexp test.
Add a test based on multiplication optimizations from OpenSSL HEAD
(1.1.0-dev) Based on openssl-SNAP-20111003
2014-06-20 13:17:33 -07:00
Adam Langley
520ed0446c GOT-relative lookups in RC4 code. 2014-06-20 13:17:32 -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