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and engage it in most modules.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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Reviewed-by: Richard Levitte <levitte@openssl.org>
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Rename it to be an internal function bn_init.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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The function rsa_ossl_mod_exp uses the function BN_with_flags to create a
temporary copy (local_r1) of a BIGNUM (r1) with modified flags. This
temporary copy shares some state with the original r1. If the state of r1
gets updated then local_r1's state will be stale. This was occurring in the
function so that when local_r1 was freed a call to bn_check_top was made
which failed an assert due to the stale state. To resolve this we must free
local_r1 immediately after we have finished using it and not wait until the
end of the function.
This problem prompted a review of all BN_with_flag usage within the
codebase. All other usage appears to be correct, although often not
obviously so. This commit refactors things to make it much clearer for
these other uses.
Reviewed-by: Emilia Käsper <emilia@openssl.org>
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RT#4142
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@akamai.com>
RT #4100, MR #1264
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The problem remained unnoticed so far, because it's never called by default.
You have to craft OPENSSL_ppccap environment variable to trigger the problem.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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is couple percent faster]. Triggered by RT#4128, but solves the problem by real modulo-scheduling.
Reviewed-by: Rich Salz <rsalz@openssl.org>
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Continuing from previous commit ensure our style is consistent for malloc
return checks.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
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Rebuild error source files: the new mkerr.pl functionality will now
pick up and translate static function names properly.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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All instances of SSLeay (any combination of case) were replaced with
the case-equivalent OpenSSL.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@akamai.com>
MR #1276, RT #4107
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Reviewed-by: Kurt Roeckx <kurt@openssl.org>
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Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
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[fixes github issue #447]
Reviewed-by: Tim Hudson <tjh@openssl.org>
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BN_with_flags() will read the dest->flags to keep the BN_FLG_MALLOCED but
overwrites everything else.
Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
MR #1231
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-Allow mingw debug builds to fail on Travis CI
-Fix Travis email notifications config
-Rename a variable to avoid a bogus warning with old GCC
error: declaration of ``dup'' shadows a global declaration [-Werror=shadow]
-Disable pedantic ms-format warnings with mingw
-Properly define const DH parameters
-Restore --debug flag in Travis CI builds; -d would get incorrectly passed
to ./Configure in mingw debug builds.
Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
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Close difference gap on Cortex-A9, which resulted in further improvement
even on other processors.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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As some of ARM processors, more specifically Cortex-Mx series, are
Thumb2-only, we need to support Thumb2-only builds even in assembly.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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Reviewed-by: Richard Levitte <levitte@openssl.org>
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-Wincompatible-pointer-types-discards-qualifiers (the latter did not require
any code changes).
Reviewed-by: Rich Salz <rsalz@openssl.org>
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Use malloc/free instead of big onstack buffers.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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After openssl_zalloc, cleanup more "set to 0/NULL" assignments.
Many are from github feedback.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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There are many places (nearly 50) where we malloc and then memset.
Add an OPENSSL_zalloc routine to encapsulate that.
(Missed one conversion; thanks Richard)
Also fixes GH328
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Don't dereference |d| when |top| is zero. Also test that various BIGNUM methods behave correctly on zero/even inputs.
Follow-up to b11980d79a52ec08844f08bea0e66c04b691840b
Reviewed-by: Rich Salz <rsalz@openssl.org>
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Fix from David Baggett via tweet.
Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
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If a binary sequence is all zero's, call BN_zero.
Reviewed-by: Matt Caswell <matt@openssl.org>
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The function BN_MONT_CTX_set was assuming that the modulus was non-zero
and therefore that |mod->top| > 0. In an error situation that may not be
the case and could cause a seg fault.
This is a follow on from CVE-2015-1794.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Especially since after the #ifdef cleanups this is not useful.
Reviewed-by: Matt Caswell <matt@openssl.org>
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From a CloudFlare patch.
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
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Reviewed-by: Rich Salz <rsalz@openssl.org>
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Create bn_free_d utility routine and use it.
Fix RT3950
Also a missing cleanse, from Loganaden Velvindron (loganaden@gmail.com),
who noticed it in a Cloudflare patch.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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This leaves behind files with names ending with '.iso-8859-1'. These
should be safe to remove. If something went wrong when re-encoding,
there will be some files with names ending with '.utf8' left behind.
Reviewed-by: Rich Salz <rsalz@openssl.org>
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Add secure heap for storage of private keys (when possible).
Add BIO_s_secmem(), CBIGNUM, etc.
Add BIO_CTX_secure_new so all BIGNUM's in the context are secure.
Contributed by Akamai Technologies under the Corporate CLA.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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Reviewed-by: Rich Salz <rsalz@openssl.org>
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A small rearrangement so the inclusion of rsaz_exp.h would be
unconditional, but what that header defines becomes conditional.
This solves the weirdness where rsaz_exp.h gets in and out of the
dependency list for bn_exp.c, depending on the present architecture.
Reviewed-by: Rich Salz <rsalz@openssl.org>
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CVE-2015-1788
Reviewed-by: Matt Caswell <matt@openssl.org>
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A BIGNUM can have the value of -0. The function BN_bn2hex fails to account
for this and can allocate a buffer one byte too short in the event of -0
being used, leading to a one byte buffer overrun. All usage within the
OpenSSL library is considered safe. Any security risk is considered
negligible.
With thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and
Filip Palian for discovering and reporting this issue.
Reviewed-by: Tim Hudson <tjh@openssl.org>
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Make update with manual edit so EVP_PKEY_asn1_set_item uses the same
ordinal as 1.0.2.
Reviewed-by: Matt Caswell <matt@openssl.org>
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RT#3859
Reviewed-by: Tim Hudson <tjh@openssl.org>
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bn_get_bits5 was overstepping array boundary by 1 byte. It was exclusively
read overstep and data could not have been used. The only potential problem
would be if array happens to end on the very edge of last accesible page.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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RT#3852
Reviewed-by: Richard Levitte <levitte@openssl.org>
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If BN_rand is called with |bits| set to 1 and |top| set to 1 then a 1 byte
buffer overflow can occur. There are no such instances within the OpenSSL at
the moment.
Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke, Filip Palian for
discovering and reporting this issue.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
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The functions BN_rshift and BN_lshift shift their arguments to the right or
left by a specified number of bits. Unpredicatable results (including
crashes) can occur if a negative number is supplied for the shift value.
Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and Filip Palian
for discovering and reporting this issue.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
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We had updates of certain header files in both Makefile.org and the
Makefile in the directory the header file lived in. This is error
prone and also sometimes generates slightly different results (usually
just a comment that differs) depending on which way the update was
done.
This removes the file update targets from the top level Makefile, adds
an update: target in all Makefiles and has it depend on the depend: or
local_depend: targets, whichever is appropriate, so we don't get a
double run through the whole file tree.
Reviewed-by: Rich Salz <rsalz@openssl.org>
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BLKINIT optimization worked on T4, but for some reason appears "too
aggressive" for T3 triggering intermiitent EC failures. It's not clear
why only EC is affected...
Reviewed-by: Tim Hudson <tjh@openssl.org>
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Reviewed-by: Rich Salz <rsalz@openssl.org>
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There are header files in crypto/ that are used by a number of crypto/
submodules. Move those to crypto/include/internal and adapt the
affected source code and Makefiles.
The header files that got moved are:
crypto/cryptolib.h
crypto/md32_common.h
Reviewed-by: Rich Salz <rsalz@openssl.org>
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Reviewed-by: Richard Levitte <levitte@openssl.org>
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