I think that's great. Cipher fixation is a vulnerability as the enemy knows what to attack.
This understanding of cryptography is so outdated that we don't even have a color photograph of the person first refuting it: https://en.wikipedia.org/wiki/Kerckhoffs%27s_principle
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This understanding of cryptography is so outdated that we don't even have a color photograph of the person first refuting it: https://en.wikipedia.org/wiki/Kerckhoffs%27s_principle