Comments by "kd1s" (@kd1s) on "Spies, Espionage, And Secret Writing In 1770's - Historical Writing Series Part 5" video.

  1. Of course now we have ROT-13, MD5 and other cyphers. My favorites are the Ceasarean Cipher and the VIgenere cypher which is more complex. One place I worked we used to have encryption contests and Vigenere cypher unless you knew the key couldn't be broken easily. And 'invisible' inks well make sure the underlying text is encrypted. For example here's a cypher: S ogvw Ksjwnwgo fqpztbv. Mndtcv qom zxro tzt uhq ygj mdf't vtmuqpl.
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