Hi,
that means that it's all already compiled. No ./configure there...
in my Ubuntu, perlmagic is actually a package containing Image::Magick. Is this what you try to compile with cipher??? Or is it ImageMagick itself?

Update: I found this http://www.imagemagick.org/www/cipher.html and I believe this is the docs you are referring to. Right? That means that you either need to complie ImageMagick yourself instead of using the rpm that is supplied by yum or you need to find an rpm that has an ImageMagick that has been compiled with this option.

If the perlmagick/imagemagick that you installed via yum is not compiled with the option you require, you need to go the loooooooooooooooong way I described above (but beforehand you need to uninstall the rpm package)
Regards,
svenXY