Author Archive
Saturday, October 17th, 2009
PHP vs Perl?
Disclaimer / Motivation
First of all, it is important to note that this isn’t supposed to be a benchmark. The results of this test are worth what they are, it only means that PHP performed better than perl for this particular program.
[…]
2 Comments » - Posted in English, Tech by nuno
Monday, June 29th, 2009
MSIT-IS 2nd Semester Retrospective
As promised in my 1st semester retrospective, here is a retrospective of the 2nd semester (Spring Semester).
The second semester was consisted of three courses, two core courses and one free elective. I picked the following courses:
Distributed Systems
Network Security
Secure Software Systems
You can take a look at the syllabus for each course here. I can’t tell […]
No Comments » - Posted in English, Tech by nuno
Sunday, June 28th, 2009
Pittsburgh
As most of my readers know, I am temporarily living in Pittsburgh, PA, to write my thesis. I created a blog where I will be posting my experience of living in Pittsburgh. You can read it at http://pittsburgh.sig9.net/.
Tags:cmu, pittsburgh, thesis
No Comments » - Posted in English, Misc by nuno
Friday, March 13th, 2009
Quick curiosity…
In Erlang, single assignment is like algebra…
When I went to school, my math teacher said, “If there’s an X in several different parts in the same equation, then all the Xs mean the same thing.” That’s how we can solve equations: if we know that X+Y=10 and X-Y=2, then X will be 6 and Y […]
3 Comments » - Posted in English, Tech by nuno
Tuesday, February 10th, 2009
Quick curiosity…
In regards to real time…
By convention, this function increases at a rate equal to 9192631770 times the period of the radiation emitted by the transition between two hyperfine levels of the ground state atomic cesium 133, a time unit which people have agreed to call second,
In “Veríssimo P, Rodrigues L.; Distributed Systems for System […]
No Comments » - Posted in English, Tech by nuno
Saturday, February 7th, 2009
Tips for safer SSL’ing
Despite what some people (including RapidSSL) said about the recent MD5 collision attack on SSL, the truth is that just because RapidSSL stopped using MD5 for issuing certificates it doesn’t mean the world is safe again.
The researchers were able to create a rogue Certification Authority certificate. That means they have a valid CA certificate, […]
No Comments » - Posted in English, Tech by nuno
Saturday, January 17th, 2009
Portuguese Holidays iCal
If you want *all* the Portuguese holidays in your calendar, subscribe the following ics:
http://cals.sig9.net/ptHolidays/
Here’s a list of optional parameters:
ey = <end year YYYY> (defaults to <current year> + 3)
sy = <start year YYYY> (defaults to <current year> - 2)
ct = <city> ({lisboa, porto} are the only cities currently available)
Example:
http://cals.sig9.net/ptHolidays/?ct=lisboa&sy=2009&ey=2015
If you want the […]
5 Comments » - Posted in English, Tech by nuno
Friday, January 16th, 2009
Human power to break CAPTCHA
While there’s people out there working for 1 cent an hour, CAPTCHA will never be bullet proof… just because it’s not supposed to be Human proof.
Check out http://www.anti-captcha.com/ or the google translation here since the original site is in Russian. Impressive that they even offer SLAs.
Tags:captcha, security
No Comments » - Posted in English, Tech by nuno
Sunday, January 11th, 2009
MSIT-IS 1st Semester Retrospective
A lot of people have been asking me for a retrospective of the Lisbon MSIT-IS (Masters in Information Technology - Information Security) program from Carnegie Mellon, so I decided to post here a review of the previous semester.
First of all, this is a Dual Program (MSIT-IS from CMU and Mestrado em Segurança Informatica from FCUL). […]
2 Comments » - Posted in English, Tech by nuno
Sunday, November 2nd, 2008
iTunes stopped recognizing iPhone
As some of you have noticed, I haven’t had much time to post on my blog lately because of this. But today I made an exception just because I spent the last couple of hours trying to figure out why the heck iTunes stopped recognizing my iPhone. While surfing through the internet I noticed […]
