9 Commits

Author	SHA1	Message	Date
Adam Ierymenko	a297e4a5bf	Add build def ZT_NO_TYPE_PUNNING, which when defined disables type punning code that might cause unaligned access errors on architectures that care (e.g. Android/ARM)	2015-07-08 09:12:51 -07:00
Adam Ierymenko	f19c3c51d3	Revert slow non-SSE Salsa20 modification since it did not fix Android/ARM issue. Also update Salsa20 comments and clean up a bit.	2015-07-02 09:00:00 -07:00
Adam Ierymenko	7c9949eea3	For @glimberg -- a *possible* fix to the alignment headaches on Android/ARM. If this works we should find a define that can be used to enable it there since it will slow things down on non-x86 other architectures.	2015-07-01 12:29:23 -07:00
Adam Ierymenko	8d2e20ede6	Get rid of __align stuff in Salsa20 -- not portable, does not seem to help much on newer chips.	2014-09-16 08:53:18 -07:00
Adam Ierymenko	f2d372545a	Salsa20 SSE Windows build fix -- turns out you can't be as loose with SSE intrinsics in Visual Studio	2014-07-26 20:07:38 -07:00
Adam Ierymenko	12692c551e	SSE optimized Salsa20 -- anywhere from 20% to 50% faster than plain C version	2014-07-15 17:56:09 -07:00
Adam Ierymenko	8c9b73f67b	Make Salsa20 variable-round, allowing for Salsa20/12 to be used for Packet encrypt and decrypt. Profiling analysis found that Salsa20 encrypt was accounting for a nontrivial percentage of CPU time, so it makes sense to cut this load fundamentally. There are no published attacks against Salsa20/12, and DJB believes 20 rounds to be overkill. This should be more than enough for our needs. Obviously incorporating ASM Salsa20 is among the next steps for performance.	2013-10-18 17:39:48 -04:00
Adam Ierymenko	ef3e319c64	Several things: ... (1) Probable fix for issue #7 and major cleanup of EthernetTap code with consolidation for all unix-like systems and specialization for different flavors only when needed. (2) Refactor of Buffer<> to make its members private, and Packet to use Buffer's methods exclusively to access them. This improves clarity and means we're no longer lying about Buffer's role in the code's security posture. (3) Add -fstack-protect to Makefile to bounds check stack variables.	2013-07-09 14:06:55 -04:00
Adam Ierymenko	150850b800	New git repository for release - version 0.2.0 tagged	2013-07-04 16:56:19 -04:00