Well, not that much, right? If you had an 11-word diceware passphrase to start, each word is about 7 characters on average, so you have maybe 90 places to insert a token—only 6.5 extra bits come from choosing a place to insert your character. And of course you get the same added entropy from inserting a random 3 base32 chars at a random location.
Happy to grant that a cracker assuming no unicode won’t be able to crack your password, but if that’s your goal then it might be a bad idea to post about your strategy on the public internet ;)
Well, not that much, right? If you had an 11-word diceware passphrase to start, each word is about 7 characters on average, so you have maybe 90 places to insert a token—only 6.5 extra bits come from choosing a place to insert your character. And of course you get the same added entropy from inserting a random 3 base32 chars at a random location.
Happy to grant that a cracker assuming no unicode won’t be able to crack your password, but if that’s your goal then it might be a bad idea to post about your strategy on the public internet ;)