These are some implementations of tiger made without looking at the original
reference code to ensure the resulting code can be published under a free
license. The paper was looked though to know how did tiger work.

Currently we provide native implementations of tiger in C and PHP. Yes, this
means for example that the PHP implementation is written only using PHP.

In the C implementation various optimizations to make the calculations faster
are included, amongst other things there is a SSE2 implementation of the key
scheduling (there is no implementation of the tiger round code since the
s-table look ups trashed performance).

Free tiger also provides an implementation of the tigerp1 and tigerp2 functions
these functions are intended to provide a safer method of password storage for
authentication methods similar to the one used by DC as defined in
http://www.dcbase.org/forums/viewtopic.php?f=18&t=770