Originally posted by Aslyfox as I understand it
the secret to the Navajo Code Talkers was not that it used a language not known to many outside of the tribe but that it was a code within that language
knowing the word used was " turtle " in English did not reveal what was meant by " turtle "
Yes, there were a host of code words such as
atsah-besh-le-gai meaning colonel, literally "silver eagle", and
deba-de-nih meaning Spain, literally "sheep pain"
But also a simple code for the phonetic alphabet; three words could represent each letter of the alphabet. For A those would be "ant", "apple", and "axe, translated to "wol-la-chee", "be-la-sana", and "tse-nill". Not in itself a strong cipher but good enough that nobody managed to crack it - not even by the Navy's own codebreakers, I believe.
Quote: I have heard that the hardest " code " to break is a " book " code where each party to the code needs the same book, the same printing of it and the knowledge of how to use it to decipher the message encoded
of course, my information is probably out dated
Could be if it is well implemented. The Japanese navy used book codes, but due to their poor implementation and routines they kept being broken.
U.S. in World War II: How the Navy broke Japanese codes before Midway.
Both these systems carry the risk that if you crack it you can read past messages as well. The best option, at least back then, would be to use a
one-time pad. Impossible to crack, but each party must have pre-shared pads - which in itself is a security risk.
These days we simply wrap secret messages in bacon to confuse the enemy. Right, @CharLac?