Time and time again you hear about a company having all of their users' passwords, or "password hashes", compromised, and often there's a press response including one or more prominent security researchers demonstrating how 1,000 users had the password "batman", and so on. It's surprising how often this happens considering we've had ways to do password authentication that don't expose users' passwords, or at least makes it significantly harder to crack them, for several decades.

Personally, I think it boils down to a fundamental misunderstanding about what cryptographic hash functions are and what they are—or should be—used for, and a failure on the part of security researchers and advocates, myself included, to properly explain and emphasize the differences. So here's an attempt to explain why "SHA 256-bits enterprise-grade password encryption" is only slightly better than storing passwords in plain text.

1.    Separate subject from body with a blank line
2.    Limit the subject line to 50 characters
3.    Capitalize the subject line
4.    Do not end the subject line with a period
5.    Use the imperative mood in the subject line
6.    Wrap the body at 72 characters
7.    Use the body to explain what and why vs. how

Le format d'impression A est basé sur l’homothétique, c’est-à-dire que ses proportions doivent être conservées lorsque l’on plie une feuille dans son côté le plus long. Cette particularité permet de pouvoir reproduire chaque format A(x) dans son format A(x+1) ou A(x-1) en conservant toutes les proportions de ce qui se trouve sur la page.

I import all my photos with Shotwell into a folder within my Dropbox so all the photos are available to other devices. However, most importing is done on Linux laptop and while photos are available on the Linux desktop (a separate machine) the databases seem to be different so I have difficulty locating photos. Can anyone suggest a remedy ? Supplementary question - if I add tags to the photos on, say the desktop, are these applied on the laptop as well ?

for f in *.flac; do echo "Converting $f"; g=`basename "$f" .flac`; ffmpeg -i "$f" "$g.mp3" || echo FAILED; done

The Unofficial Dropbox Wiki is the only definitive resource on the web containing a wealth of information regarding applications that work with Dropbox and tips you can use to trick out your Dropbox! This user-supported wiki was created and is maintained by Raymond Ma, a former Dropbox User Ops Intern and a current Dropbox Forum Super User. Dropbox Wiki is not sponsored, endorsed, or affiliated with Dropbox.

In January 2014, Andy Y. joined our team. Also a forum Super User, he spends his free time helping on the forums, and is happy to be a member of the Dropbox Wiki team.

Retrouvez des tests d’objectifs, de boitiers et d’accessoires divers effectués par nos propres soins.Photoexposition.fr veut également partager sa passion pour la photo…en couleur et en noir & blanc.