In this directory you will find a benchmark script "benchmark.pl" that will test the performance of all Crypt::CBC compatible encryption modules available on CPAN at the time of this writing (November 2003). Of course, it will only test those modules that are installed on your system. The results are writting into an HTML file "benchmark.html" (and other files linked from there). The benchmarking is surely not bullet-proof but the results should give you an idea of the performance of the various modules on your(!) machine. Please note, that the performance of all modules can vary a lot depending on the operating system and hardware. The file "benchmark.html" shipped with Crypt::Twofish_PP shows the results for one of my machines. You should not over-estimate the absolute numbers but rather see the results as a whole and only compare the performance indicators relative to each other. For more reliable results you will probably increase the time per test. You can do that by modifying the constant "SECONDS" in the source code of "benchmark.pl". Improvements to the script (command-line options for more flexible usage?) are welcome! Guido Flohr