Yesterday, while reading the appendix in "Cryptonomicon" I learned that it's not a good idea to have a deck of cards with you while travelling! The appendix written by Bruce Schneier details how to crypt messages using a deck of cards. It's a very simple but effective and save way of encoding information by hand!
So if you travel with an unsorted deck you might be considered as a spy! And this can lead to trouble, so be warned :)
8:55:37 AM
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