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path: root/src/lib/libcrypto/bn/bn_exp.c (follow)
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* use freezero() instead of memset/explicit_bzero + free. Substantiallyderaadt2017-05-021-9/+4
| | | | | | | | | | reduces conditional logic (-218, +82). MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH cache alignment calculation bn/bn_exp.c wasn'tt quite right. Two other tricky bits with ASN1_STRING_FLAG_NDEF and BN_FLG_STATIC_DATA where the condition cannot be collapsed completely. Passes regress. ok beck
* Send the function codes from the error functions to the bit bucket,beck2017-01-291-11/+8
| | | | | | as was done earlier in libssl. Thanks inoguchi@ for noticing libssl had more reacharounds into this. ok jsing@ inoguchi@
* Split out BN_div and BN_mod into ct and nonct versions for Internal use.beck2017-01-211-3/+3
| | | | ok jsing@
* Make explicit _ct and _nonct versions of bn_mod_exp funcitons thatbeck2017-01-211-11/+55
| | | | | | | | | | | | matter for constant time, and make the public interface only used external to the library. This moves us to a model where the important things are constant time versions unless you ask for them not to be, rather than the opposite. I'll continue with this method by method. Add regress tests for same. ok jsing@
* /usr/bin/unifdef -D MONT_MUL_MOD -D MONT_EXP_WORD -D RECP_MUL_MOD -m bn_exp.cbeck2017-01-211-23/+2
| | | | | with some style cleanup after. no binary change ok jsing@
* add constant-time MOD_EXP_CTIME_COPY_FROM_PREBUF.bcook2016-09-031-16/+55
| | | | | | | | | | Patch based on OpenSSL commit d7a854c055ff22fb7da80c3b0e7cb08d248591d0 "Performance penalty varies from platform to platform, and even key length. For rsa2048 sign it was observed to reach almost 10%." CVE-2016-0702 ok beck@
* BN_mod_exp_mont_consttime: check for zero modulus.bcook2016-09-031-9/+33
| | | | | | | Don't dereference d when top is zero. Original patch from OpenSSL commit d46e946d2603c64df6e1e4f9db0c70baaf1c4c03 ok jsing@
* BN_mod_exp_mont_consttime: check for zero modulus.bcook2016-09-031-4/+5
| | | | | | | Don't dereference |d| when |top| is zero. Also test that various BIGNUM methods behave correctly on zero/even inputs. Original patch from OpenSSL commit d46e946d2603c64df6e1e4f9db0c70baaf1c4c03
* Correct spelling of OPENSSL_cleanse.jsing2015-09-101-2/+2
| | | | ok miod@
* Fix indentation that incorrectly implies a different control flow.doug2015-03-211-2/+3
| | | | | | | | | | | | | The actual control flow is intentional while the indenting is incorrect. This is intended to be a cosmetic change. Verified that each of these was part of a KNF commit that wasn't intending to change behavior. Also, double checked against the history of changes in OpenSSL and BoringSSL. Addresses Coverity CIDs: 78842, 78859, 78863. ok tedu@
* Potential NULL dereference in the error path; Coverity CID 21720miod2015-02-141-2/+2
| | | | ok doug@ jsing@
* BN_CTX_get() can fail - consistently check its return value.jsing2015-02-091-15/+17
| | | | | | | | | | | | | | | There are currently cases where the return from each call is checked, the return from only the last call is checked and cases where it is not checked at all (including code in bn, ec and engine). Checking the last return value is valid as once the function fails it will continue to return NULL. However, in order to be consistent check each call with the same idiom. This makes it easy to verify. Note there are still a handful of cases that do not follow the idiom - these will be handled separately. ok beck@ doug@
* Apparently better fix for OpenSSL PR #3397 (Joyent bug #7704), from OpenSSLmiod2014-07-111-2/+2
| | | | trunk
* Only import cryptlib.h in the four source files that actually need it.jsing2014-07-111-2/+3
| | | | | | | | Remove the openssl public includes from cryptlib.h and add a small number of includes into the source files that actually need them. While here, also sort/group/tidy the includes. ok beck@ miod@
* Stop including standard headers via cryptlib.h - pull in the headers thatjsing2014-07-101-3/+3
| | | | | | are needed in the source files that actually require them. ok beck@ miod@
* tags as requested by miod and teduderaadt2014-06-121-1/+1
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* malloc() result does not need a cast.deraadt2014-06-071-1/+1
| | | | ok miod
* Replace (sometimes conditional) use of alloca with malloc, and clearingmiod2014-05-231-16/+0
| | | | | | through volatile pointers with explicit_bzero(). ok beck@ jsing@
* if (x) free(x) -> free(x); semantic patch generated with coccinelle, carefullymiod2014-05-221-2/+1
| | | | eyeballed before applying. Contributed by Cyril Roelandt on tech@
* Emergency knfectomie requested by tedu@.jsing2014-05-081-564/+582
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* Remove WIN32, WIN64 and MINGW32 tentacles.miod2014-04-281-6/+1
| | | | | | | | Also check for _LP64 rather than __arch64__ (the former being more reliable than __LP64__ or __arch64__) to tell 64-bit int platforms apart from 32-bit int platforms. Loosely based upon a diff from Martijn van Duren on tech@
* Change library to use intrinsic memory allocation functions instead ofbeck2014-04-171-2/+2
| | | | | | | | OPENSSL_foo wrappers. This changes: OPENSSL_malloc->malloc OPENSSL_free->free OPENSSL_relloc->realloc OPENSSL_freeFunc->free
* resolve conflictsdjm2012-10-131-67/+173
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* resolve conflicts, fix local changesdjm2010-10-011-1/+2
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* resolve conflictsdjm2008-09-061-65/+68
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* resolve conflictsdjm2006-06-271-2/+242
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* OpenSSL 0.9.7 stable 2002 05 08 mergebeck2002-05-151-49/+100
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* openssl-engine-0.9.6 mergebeck2000-12-151-287/+234
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* OpenSSL 0.9.5 mergebeck2000-03-191-19/+219
| | | | | | *warning* this bumps shared lib minors for libssl and libcrypto from 2.1 to 2.2 if you are using the ssl26 packages for ssh and other things to work you will need to get new ones (see ~beck/libsslsnap/<arch>) on cvs or ~beck/src-patent.tar.gz on cvs
* OpenSSL 0.9.4 mergebeck1999-09-291-107/+103
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* Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD buildryker1998-10-051-0/+553
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
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