mcrypt (Pete's notes)

Mcrypt needs mhash, so get/install it first. Web to the mhash home page. Download mhash-0.8.13.tar.gz.

cd /usr/src gunzip mhash-0.8.13.tar.gz tar xf mhash-0.8.13.tar rm mhash-0.8.13.tar cd mhash-0.8.13/ ./configure make make install make clean

Web to the mcrypt home page. Download mcrypt-2.5.11.tar.gz and libmcrypt-2.4.20.tar.gz.

cd /usr/src gunzip libmcrypt-2.4.20.tar.gz tar tf libmcrypt-2.4.20.tar rm libmcrypt-2.4.20.tar cd libmcrypt-2.4.20 ./configure make make check make install make clean gunzip mcrypt-2.5.12.tar.gz tar xf mcrypt-2.5.12.tar rm mcrypt-2.5.12.tar cd mcrypt-2.5.12 export LD_LIBRARY_PATH=/usr/local/lib/ ./configure make make check make install make clean

To encrypt a file using the standard Unix "crpyt" algorithm, do

mcrypt -a enigma --keymode scrypt --bare filename

This will prompt you for the password and then produce filename.nc. To decrypt the file, use

mdecrypt -a enigma --keymode scrypt --bare filename.nc

Pete Siemsen

Last modified: Fri Feb 22 10:08:27 MST 2002