[tiler]

A couple of random thoughts on potential applications/uses:

1. Alexandria needs to communicate with Bilbo. Alexandria has the privilege of being trusted by whatever organization she belongs to (be that her country, company, etc) and as such is unmonitored AFAsheKs. Biblo on the other hand is some fugitive-type and is unable, or perhaps unwilling, to enter direct communication with Alexandria for fear of compromising himself or his beloved Alexandria. Bilbo could then monitor Alexandria's calls for an encoded message via a protocol they predetermine. This protocol could take the form of linguistic or audio steganography. One could image all sorts of information being leaked by Alexandria.

2. More realistically this could be tool for bribery. Monitor a set of vulnerable targets, wait until they reveal something, take a bribe to stay quite.

3. Or, for the Machiavellian-minded leak information that was supposedly confidential between two parties.

[jmnicolas]

I didn't understand anything. Could you explain it with Alice and Bob instead ?