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What I learned from Whitfield Diffie and Martin Hellman

A few years ago, while attending a “Computer Systems and Networks Security” class, I was talking with a friend of mine. We said to each other: “There’s no way in hell that two principals can exchange a key without a pre-shared key of some sort“. A few minutes later, our professor introduced us to the [...]

Posted 13 January 2011 † simaom § informação ‡ Comments (0) ° Tagged: , ,

Browser fingerprinting

Tomei conhecimento do estudo da Electronic Frontier Foundation intitulado “Web Browsers Leave ‘Fingerprints’ Behind as You Surf the Net”, através do Miguel Almeida, mas já vi várias opiniões em vários sítios diferentes. Apesar de achar que os resultados do estudo são de facto preocupantes, acho que se está a exagerar bastante. Ao correr o teste [...]

Posted 31 May 2010 † simaom § informação ‡ Comments (0) ° Tagged: , , , ,

PrinScreen RSS File – Long live Prt.sc… sort of

Recently, one of my favorite blog aggregators died, but left us with a nice OPML file containing all rss feeds from the authors of the aggregator. Yahoo! My pipes couldn’t parse the opml file, so I built a python script to do it and hosted it in my server. The RSS File is updated every [...]

Posted 12 April 2010 † simaom § Uncategorized ‡ Comments (1) ° Tagged: , , , ,

opml2rss.py – An opml to rss converter

I just uploaded another script to my github repository. It’s a python script to parse an opml file and generate a rss file with entries from all rss feeds in the rss file not older than a certain number of days. You can get the script here: http://github.com/…/opml2rss.py The script has a few configuration parameters [...]

Posted 12 April 2010 † simaom § ‡ Comments (1) ° Tagged: , , , ,