View the most recent changes for the rb-crypt-isaac port at: rb-crypt-isaac.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for rb-crypt-isaac.
The raw portfile for rb-crypt-isaac is located here:
http://rb-crypt-isaac.darwinports.com/dports/ruby/rb-crypt-isaac/Portfile
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Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/rb-crypt-isaac

The rb-crypt-isaac Portfile 38283 2008-07-14 21:32:26Z febeling macports.org $
PortSystem 1.0
PortGroup ruby 1.0

ruby.setup crypt-isaac 0.9 copy_install:lib {README} rubyforge:1192
Maintainers: nomaintainer
Description: Implementation of the ISAAC psuedo random number generator.
Long Description: This is a Ruby implementation of the ISAAC cryptographically secure PRNG. One can use it when one wants independent sources of high quality random numbers.
Homepage: http://rubyforge.org/projects/crypt-isaac
distname ${ruby.module}_${version}

Category:-append security
Checksums: md5 5411951336490b2f805aa15d5902842a
build {
file mkdir ${worksrcpath}/lib
file mkdir ${worksrcpath}/lib/crypt
file rename ${worksrcpath}/ISAAC.rb ${worksrcpath}/lib/crypt/ISAAC.rb
}
Platform: darwin

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/rb-crypt-isaac
%  sudo port install rb-crypt-isaac  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching rb-crypt-isaac
--->  Verifying checksum for rb-crypt-isaac
--->  Extracting rb-crypt-isaac
--->  Configuring rb-crypt-isaac
--->  Building rb-crypt-isaac with target all

--->  Staging rb-crypt-isaac into destroot

--->  Installing rb-crypt-isaac

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using rb-crypt-isaac with these commands:

%  man rb-crypt-isaac
%  apropos rb-crypt-isaac
%  which rb-crypt-isaac
%  locate rb-crypt-isaac

 Where to find more information: