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Johanna Amann e1218cc7fa Change Hashing from H3 to Siphash. 
This commit mostly changes the hash function that is used for Internal
hashing of data < 36 bytes from H3 to Siphash. This change is motivated
by the fact that it turns out that H3 apparently does not deliver a very
good source of data uniqueness; running HLL with H3 as a hashing
function results in quite poor results (up to of 75% off in my tests).
In difference, running HLL with Siphash (or HMAC-MD5) changes this
factor to ~2%.

This also fixes a long-standing bug in Hash.h which truncated our hash
values to 32 bit on most machines.

Furthermore, it once again fixes a problem with the Rank function in
HLL.
2016-07-13 06:44:51 -07:00
..
btest Change Hashing from H3 to Siphash. 2016-07-13 06:44:51 -07:00
external Change one forgotten bro-ids.org to bro.org 2015-12-14 15:58:16 -08:00
scripts Adding usage guard to canonifier script. 2015-12-18 12:59:26 -08:00
.gitignore Test coverage integration for external tests and complete suite. 2012-01-12 11:58:13 -06:00
Makefile Fix portability issue with use of mktemp 2016-01-28 14:32:22 -06:00
README

README 

This directory contains suites for testing for Bro's correct
operation:

    btest/
        An ever-growing set of small unit tests testing Bro's
        functionality.

    external/
        A framework for downloading additional test sets that run more
        complex Bro configuration on larger traces files. Due to their
        size, these are not included directly. See the README for more
        information. 

    scripts/
        Helpers scripts used by some tests.