sfill

sfill is designed to delete data which lies on available diskspace on mediums in a secure manner which can not be recovered by thiefs, law enforcement or other threats. The wipe algorithm is based on the paper “Secure Deletion of Data from Magnetic and Solid-State Memory” presented at the 6th Usenix Security Symposium by Peter Gutmann, one of the leading civilian cryptographers.

apt-get install secure-delete