fingerprinting

How can we tell what language/technology was used to render an HTML document?

In general, a web application can render any HTML it likes. Therefore, in theory, any language could render identical HTML output. However, there are some ways we can try to deduce what is running server-side. For instance, file extensions are usually a dead giveaway (although they could technically be faked). Due to my experience with ...

Musicbrainz fingerprinting

I've been busy with understanding the MusicBrainz database in the past few hours and as I noticed there's no command line application to tag or fingerprint audio files. Are there any CLI implementations on Musicbrainz's fingerprinting? And how can I create those fingerprints? I found some development tools on their website (python-music...

How does music fingerprinting work (for sites such as Shazam and Lala.com)?

My large (120gb) music collection contains many duplicate songs, and I've been trying to fingerprint tracks in the hopes of detecting duplicates. And since I'm a CS Major I'm very curious as to what is done out there? Nothing I do has nearly the accuracy of something like Shazam or Lala.com. How do they "hash" tracks? I have run a standa...

How to stop unintentional human errors?

We maintain a huge set of files in our web servers. Yesterday we were surprised to see a very important core file of the system being reverted by an older version (probably by some human beings since we do not have any automated scripts). Users partially got affected for half a day for this. Shall I run a sort of automated script to sca...

Reconstructing trees from a "fingerprint"

I've done my SO and Google research, and haven't found anyone who has tackled this before, or at least, anyone who has written about it. My question is, given a "universal" tree of arbitrary height, with each node able to have an arbitrary number of branches, is there a way to uniquely (and efficiently) "fingerprint" arbitrary sub-trees...

php session hijacking - is HTTPS enough? Suggestions for fingerprinting?

I use HTTPS, but want to minimize the risk of someone evil crafting their own cookies with a session ID that someone else actually uses recently. As a session variable I have an expiry time so the session is invalidated if it hasn't been used recently, so I figure the window of opportunity is when the victim is active or recently left...

how to buy the approprait scanner?

which scanner to use for digitizing fingerprints on cards? ...

What does fingerprint data look like?

Hi, Are there any datasets of digitized data from fingerprints (not-images)? Basically, we're planning an application that works on fingerprint data and wondering if the output by fingerprint readers are standardized and if so, are there some reference sets / data sheets we can look at ...