Connection without a need for a magic word using hotp

Nobody has claimed this yet.

[HOTP wikiipita](https://en.wikipedia.org/wiki/HMAC-based_one-time_password)

hotp works by generating a one time password using a secret key and a counter
The listener could generate an OTP of say length 8 with key 0xdeadbeef and count of 5 they get 49004148

If the receiver has the same key and can figure out the count they would also get 49004148

Pros
1: It is standard so easy to find libraries for
2: You don't have to refresh the code

Cons:
1: You have to get the count to each party, and the counts may be desynced.
2: You may have to implement a way for the listener to send the count to connector.

Thanks for your time Luke

The issue proposes HOTP-based connection authentication but names no files, tests, or entry points. Start by reviewing the existing magic-wormhole connection protocol and determine how both parties would share and synchronize the counter; the work is done when the protocol design and its handling of desynchronized counters are settled.

Written by the indexing model from the issue text.