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Bruce Barnett
Attended Rensselaer Polytechnic Institute
Lived in Troy, NY
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Bruce Barnett

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I’ve always wanted to build a versatile Teensy-based device for use in physical security penetration testing. I’ve seen Irongeek’s device, and Mike Czumak’s dongle,  but neither of these had an SD card, and only had a 4 of 5 position DIP switch. I liked…
I’ve always wanted to build a versatile Teensy-based device for use in physical security penetration testing. I’ve seen Irongeek’s device, and Mike Czumak’s dongle, but nei…
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Bruce Barnett

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Mike Ossmann looks at the Chaos Communication Camp Rad10 badge - based on the HackRF
My First Look at rad1o Badge. Posted at: 11 August 2015 08:36 by Michael Ossmann. Over the next several days, thousands of hackers will gather at the Chaos Communication Camp in Germany. An electronic badge for the event is being prepared, and it is based on my design for HackRF One!
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Bruce Barnett

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We found a cecropia moth by the garage - US's largest moth - about 6 inches wide. He seems sluggish by the recent cold snap.
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never saw a moth quite like that...
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I purchased the "Getting Started with the Trinket" PDF from Make Magazine with their 50% off sale. The PDF was 270MBytes, more than a quarter of a Gigabyte! Yikes. This make things difficult sending the PDF to my Kindle. I used the following GhostScript command on my Linux system to reduce the size to a more manageable 21MBytes:

gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -sOutputFile=GSW_Adafruit_Trinket.new.pdf GSW_Adafruit_Trinket.pdf

It seemed to work, but it complained about the PDF, saying it did not meet Adobe's specifications.
#trinket  #make
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Looks interesting. Being paranoid, I's recommend the option that comes with the programming jig (about $70 USD).
Paul Campbell - Moonbase Otago is raising funds for OneRNG - an open source entropy generator on Kickstarter! OneRNG generates random numbers that your system can use for cryptography - it's completely open source, secure but hackable
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Dear SONY: Where can I buy a legal bittorrent of The Interview?
I'd love to hear the discussion between management/lawyers/techies :-)
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Bruce Barnett

Training/Tutorials/HOWTO  - 
 
I updated my tutorial on sed. Looking for feedback. http://www.grymoire.com/Unix/Sed.html
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At grymoire page
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New blog post. One of my clients wanted us to scan their web servers for confidential information.
#nmap #wget #exiftool #pdf
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张海
 
Hello, I've found a possible bug in your tutorial about sed (a most clear and useful document that I'll recommend to anyone who wants to know about sed). I didn't find your email so I'm posting it here, sorry in advance if this is not the right place.

In the section about --binary for GNU sed (http://www.grymoire.com/unix/Sed.html#uh-62j), you mentioned:

"If you are using any of these operating systems, the "-b" or --binary" command line option will treat the carriage return/new line combination as the end of the line."

But according to the manual (http://www.gnu.org/software/sed/manual/html_node/Invoking-sed.html) and my interpretion, the effect should be the opposite.

The --binary flag should cause a call to libc fopen() be flagged with 'b', which makes libc on Windows stop converting CRLF as in normal text mode, so that sed can see CR, instead of treating CRLF as a newline.
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19 hours left to back this project. This is going to be a winner for #security researchers interested in embedded systems. The price of this system will increase when commercially available, so if you sign up now, you can keep the lower price.
Colin O'Flynn is raising funds for ChipWhisperer-Lite: A New Era of Hardware Security Research on Kickstarter! Embedded security - is it an oxymoron? Learn the truth through a series of hands-on labs targeting computer and electrical engineers.
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Here's a picture of the finished aluminum case. These hammond cases can be found for $19, and with some hand tools (needle files, center punch, hammer)  and a drill, you can make one.
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I wanted to label the ports, and add a grounding cable to improve the shielding, and also measure the change in sensitivity. That's on my TODO list.
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I found a great case for my #HackRF and accessories. It was $10.50 from Amazon available here: http://www.amazon.com/gp/product/B002VPE1QG
It's just a little larger than my HackRF box, and it holds everything, and has a compartment for each piece.
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I ordered the Hammond 1455J1201 case, drilled the holes and now I'm testing the fit.
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Story
Tagline
Grymoire: a wizards's book of knowledge and experience
Introduction
I'm a scientist, and a magician.  I'm currently developing cyber-analytical systems, using semantic reasoning, to measure and evaluate the security of complex systems.
Bragging rights
My "grymoire" tutorial on SED is ranked #1 by google. I gave a talk at DEFCON about magic and misdirection.
Education
  • Rensselaer Polytechnic Institute
    Mathematics, 1969 - 1973
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