I think it's important to include the technical term "hash" at least once. Then users can research the topic. "Scrambled" is imprecise enough that it could me

I think it's important to include the technical term "hash" at least once. Then users can research the topic. "Scrambled" is imprecise enough that it could mean either hashed or encrypted. In radio usage, it specifically refers to encryption, so someone researching "scrambling" would get confused very quickly by that explanation.