There might be flaws in the following method for anonymous signal reception that I'm not seeing:
Alice doesn't know who Bob is. Bob wants to Alice to notify Bob of a particular outcome without discovering who Bob is. Bob doesn't want to rely on a narrow broadcast window. Neither Alice nor Bob want any other party (Carol) to spot that Alice is notifying someone of something.
So Bob tells Alice to do the following:
- The message is to be a short collection of random characters that makes prearranged sense to Alice and Bob. For example, 94e3d5b0f1 for "Yes / Proceed" and 32b6422292 for "No / Stop".
- Alice responds to or uses a twitter account with lots of followers. For example, a popular celebrity or topic.
- Alice creates a relevant tweet on any relevant topic which involves a URL link for more information.
- The URL link is created using a custom URL shortener. The custom URL ends with the desired message. For example, http://url.short/94e3d5b0f1
Alice can not find out who Bob is amongst the thousands or millions of followers. Other followers, such as Carol, have no idea that a Boy Band tweet or someone replying to a Boy Band tweet actually acknowledged for example, a fugitive amnesty for Bugs Bunny.
Would this be a viable method for anonymous signal reception?