Re: [tor-dev] Future Onion Addresses and Human Factors

On Aug 8, 2015, at 12:36 PM, Alec Muffett alecm@fb.com wrote:

9. appending a credit-card-like “you typed this properly” extra few characters checksum over the length might be helpful (10..15 bits?) - ideally this might help round-up the count of characters to a full field, eg: XXX in this?

    a1uik-0w1gm-fq3i5-ievxd-m9ceu-27e88-g6o7p-e0rff-dw9jm-ntwkd-sdXXX.onion
   
   

For the avoidance of doubt: I am not proposing use of special-case capital letters for checksums. I merely use capital letters for emphasis.

— Alec Muffett Security Infrastructure Facebook Engineering London