Ever since reading a good book about password security as an impressionable intern, I have become something of a password security obsessive While this often tries my good wife's patience, it does give us a lot of peace of mind about the security of our online presence Whenever I create a password, a brief image often flits across my mind of a nefarious hacker with an array of graphics cards feverishly computing hashes to crack my newly minted password To get a better sense of the time involved in cracking passwords, I recommend the Password Haystacks site.
I recently acquired a Parallella Board which advertises itself as supercomputing for the masses. As I was poking around the examples I found they had ported a version of John The Ripper a tool for cracking password hashes to take advantage of the Parallella's multi-core Epiphany Coprocessor. Zynq 7020 parallella bitcoin this was an opportunity to see the other side of password security and see first hand, how easy or how hard it is to crack a password, and test the strength of some of my passwords along the way.
It also is a good exercise for my Parallella Board and an opportunity to play with a new toy! So let's dive into setting up the Parallella Board, compiling John The Ripper, and running it on a sample Linux passwd file. Mostly this is in the interest of saving space on the board and feels well thought through even though you need to buy several extra cables. I found this cable on Amazon to work well. It also uses a single micro-USB port to provide keyboard and mouse inputs, assuming that you will use a powered hub.
This requires both a powered hub I like this onewhich also works well for Bitcoin Mining Finally, you will need the correct power supply. It must be zynq 7020 parallella bitcoin output and at least 2 amps I went for 3 amps. You may need external cooling as well I bought a cooling fan and, zynq 7020 parallella bitcoin an act of extraordinary laziness, plugged it into my UDOO Board which had a convenient fan connector eliminating the need for soldering and set it on top of my Parallella Board.
So far, that has been enough The process for burning the Parallella OS to a micro SD card is slightly more complex than it is for other boards. The official zynq 7020 parallella bitcoin need to be followed very carefully. Especially the part about copying and renaming the kernal files! I omitted the kernal files the first time zynq 7020 parallella bitcoin ended up with a Parallella Board that did nothing when powered up You should give attention to what processor zynq 7020 parallella bitcoin have in your Parallella Zynq or Zynq I did not find it marked on the Parallella Board because of the positioning of the heatsinks, zynq 7020 parallella bitcoin I had to double check my invoice to find the processor model number.
Once you have properly flashed a micro SD card with the OS you are ready to power up the board! The official quick start guide is very helpful, especially with the diagram indicating where the correct ports are located.
I usually setup a static IP for my boards. This is easy on the Parallella. In a stroke of extraordinary thoughtfulness, the Parallella team preinstalled git on the board and checked out the example repositories to the linaro user's home directory. I zynq 7020 parallella bitcoin not an expert in John The Ripper and it is a very flexible and complex tool So just as a simple example though we will just use it with its defaults and target a Linux passwd file.
The passwd command prompts you to set and confirm a password zynq 7020 parallella bitcoin the user. Creating these users populates your systems passwd and shadow files with the hashes for those user's passwords. John The Ripper provides a tool for you to create an input file from the passwd and shadow files. Here is what I did to extract them:. This lights up the hash cracking engine and starts making your Parallella Board quite warm!
As John Zynq 7020 parallella bitcoin Ripper runs you can hit any key for status. Any hashes that it cracks are stored in a binary file. Welcome to the dark side! You just ran a password cracker on some password hashes! With great zynq 7020 parallella bitcoin comes great responsibility and hopefully an incentive to use really good passwords!
To log in, use user linaro and password linaro.
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