[taco_emoji]

> all encryption is "security by obscurity."

Sure, I guess, in a sort of pedantic sense, but the point is that a robust cryptosystem must have the "obscure" information as a dynamic input variable, like an encryption key -- if the key is discovered, you discard it and use a new one, and the cryptosystem as a whole is still intact. Moreover, discovery of my key doesn't make your encrypted data any less secure.

If, however, the obscure information is a static, integral component like this scrambling algorithm, then discovery means the entire system is now compromised.