US District Court Says Calculating a Hash Value = Search

Posted by on under orin kerr, hash values, hash value, child pornography, slashdot, 4th amendment, us district court, volokh, video files, warrants, hard drive, gmt, pennsylvania, blog |

bfwebster writes "Orin Kerr over at The Volokh Conspiracy (a great legal blog, BTW) reports on a US District Court ruling issued just last week which finds that doing hash calculations on a hard drive is a form of search and thus subject to 4th Amendment limitations. In this particular case, the US District Court suppressed evidence of child pornography on a hard drive because proper warrants were not obtained before imaging the hard drive and calculating MD5 hash values for the individual files on the drive, some of which ended up matching known MD5 hash values for known child pornography image and video files. More details at Kerr's posting." Update: 10/28 16:23 GMT by T : Headline updated to reflect that this is a Federal District Court located in Pennsylvania, rather than a court of the Commonwealth itself.

Read more of this story at Slashdot.


Tagi: orin kerr, hash values, hash value, child pornography, slashdot, 4th amendment, us district court, volokh, video files, warrants, hard drive, gmt, pennsylvania, blog

US District Court Says Calculating a Hash Value = Search

Posted by on under orin kerr, hash values, hash value, child pornography, slashdot, 4th amendment, us district court, volokh, video files, warrants, hard drive, gmt, pennsylvania, blog |

bfwebster writes "Orin Kerr over at The Volokh Conspiracy (a great legal blog, BTW) reports on a US District Court ruling issued just last week which finds that doing hash calculations on a hard drive is a form of search and thus subject to 4th Amendment limitations. In this particular case, the US District Court suppressed evidence of child pornography on a hard drive because proper warrants were not obtained before imaging the hard drive and calculating MD5 hash values for the individual files on the drive, some of which ended up matching known MD5 hash values for known child pornography image and video files. More details at Kerr's posting." Update: 10/28 16:23 GMT by T : Headline updated to reflect that this is a Federal District Court located in Pennsylvania, rather than a court of the Commonwealth itself.

Read more of this story at Slashdot.


Tagi: orin kerr, hash values, hash value, child pornography, slashdot, 4th amendment, us district court, volokh, video files, warrants, hard drive, gmt, pennsylvania, blog

Wordpress integration

Posted by Elementus on under th weekend, sime, Wordpress, blog |

This weekend I have installed copy of Wordpress at home and found a way how to integrate iMatrix code to each post automatically. Process is simple. If you like to add this to yours - contact me. Soon, integration guide will be availalbe online...

One of popular blog agreed to test it today:)
Tagi: th weekend, sime, Wordpress, blog

iPhoneworld.ca: first blog with iMatrix integration!

Posted by Elementus on under iphe, phe, blogs, blog |

Today, one of the most popular blogs about iPhone, iPhoneWorld.ca, integrated iMatrix. Each post is marked by iMatrix code in title. Now iPhone users can open articles directly from mobile phone just shooting a code from monitor. iPhone users get pages adapted pages for best readability.
Tagi: iphe, phe, blogs, blog

Fun with the iPhone accelerometer

Posted by on under light sensors, lengthy bout, iphe, straw poll, accelerometer, arm assembly, safari browser, input methods, pxl, iphone, input device, smackbook, reverse engineering, raw data, fun stuff, repository, source code, hack, balls, blog |

Note (9/12): there is an application in the iBrickr PXL repository called 'Balls' which links to this page. I have nothing to do with that app; it was created by Grudgnor over at the MacRumors forum.

Those who have followed this blog will know that I like to like to play with unusual input methods (see my earlier posts on , ambient light sensors, and the SmackBook).

As it turns out, the iPhone has a built-in LIS302DL, a tiny 3-axis accelerometer. While some have attempted to use it from within the Safari browser (the Tilt game detects changes to the width of the browser page; it is basically used as a 1-bit input device), its potential is still somewhat untapped.

After a rather lengthy bout of reverse-engineering (I had barely touched ARM assembly before this), I finally figured out how to access the raw data from the accelerometer itself, as can be seen in the video above. Source code will be posted as soon as possible is posted here. (update: yes, it is possible to access the accelerometer directly through UIKit without this hack -- however, you'll be locked to the default sample rate, which is too slow for some of the fun stuff)

Straw poll: What would you like to see on the iPhone?


Tagi: light sensors, lengthy bout, iphe, straw poll, accelerometer, arm assembly, safari browser, input methods, pxl, iphone, input device, smackbook, reverse engineering, raw data, fun stuff, repository, source code, hack, balls, blog