openssl enc -aes-256-ctr -pass pass:"$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64)" -nosalt < /dev/zero > randomfile.bin

Securely destroy data on given device hugely faster than /dev/urandom

This command generates a pseudo-random data stream using aes-256-ctr with a seed set by /dev/urandom. Redirect to a block device for secure data scrambling.

4
By: malathion
2014-06-02 18:12:54

1 Alternatives + Submit Alt

What Others Think

I found a kernel module /dev/srandom on github (josenk/srandom) that replaces /dev/urandom to be over 40x faster then /dev/urandom. dd if=/dev/srandom of=/dev/<your disk> bs=4096k
user182882 · 161 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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