This week we had a guest speaker who showed us some very cool ways of encrypting messages. While it was relatively easy to decode as long as we had the key our partner used, I can imagine that it would be very difficult without. The same encryption techniques we learned were used in the civil war and others but at the time a lack of technology probably made even today's somewhat simple codes very difficult to break.
I really enjoyed the speakers presentation and it was quite an entertaining class. I hope that we continue to cover interesting topics like we have the past several weeks.
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