sunset silhouette

Sabi Yuna

Davit Yuna

Aviv

Beri

Fortune Yuna

Detecting Credit Card Numbers

Detecting Credit Card Numbers in Network Traffic

I was investigating this about a year ago and got to similar conclusions. The cost of doing CCN detection while processing requests and responses via an IDS/IPS should be seamless if the system scales with the number of regular expressions (rather than iterating over them as one as to do with PCRE like libraries), as transducer based technology allows.

Calculating luhn and applying other means to reduce false positives has a negative impact on performance (although this can be reduced to some extent).

Bryan Peterson -- photographer

I want to recommend to you some wonderful books by a gifted photographer that contributed a lot to the results of my (good) photography (the bad photography is all my own fault). The photographer's name is Bryan Peterson. Check out his website at http://www.bryanfpeterson.com/

The books are:

• His technical book about exposure is Understanding Exposure
  
• His composition book is Learning to See Creatively
  
• His book about digital photography is Understanding Digital Photography
• His book about taking pictures of people is Beyond Portraiture
• I just noticed that he has a new book coming Understanding Shutter Speed
  

I love the rich colors of his pictures, the creative compositions and the wonderful exposure.

If you don't make much of the technical information in the books you'll surely admire the photos. Nonetheless, the information next to the photos in the books is very inspiring and instructive.