> Sure, I'll take your statement that AirDrop hashes aren't as robust as they should be at face value, but I'm going to need you to provide more information. Of course, the PDFs have this, but the article would do well to better summarize.

Does the article they published about that which they link to not provide enough details? In that news release they referenced, they say "However, the research team shows that with new and optimized attack strategies, the low entropy of phone numbers enables attackers to deduce corresponding phone numbers from cryptographic hashes within milliseconds."

I'm not sure if I'm misunderstanding what you're asking, or if you just didn't notice that they provide the info you want fairly easily and succinctly already.