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42 sats \ 1 reply \ @south_korea_ln 9h \ parent \ on: Write a short story with 12 words bitcoin
I stand corrected. You can't use your own words, even if they share the same 4 first letters. @optimism's answer seems much better informed.
The first 4 letters identify the word (no word in the list shares the same 4 letters), but the mapping to binary will break if you use another word.
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0 sats \ 0 replies \ @optimism 9h
You could make an algo that takes identifier = left(word,4) and then locate(identifier) in an index of real words, but that's additional software, and it doesn't add any real security, except perhaps buy you 5 more minutes for someone that stole your seed phrase to figure it out and then manually map it against the standard.
If those few extra minutes are significant in your security setup, you may need to rethink your setup.
Most of these change BIP39 "ideas" aren't worth the effort. If you're not rich, your main enemy is loss. If you're rich, your main enemy is centralization. Neither will be solved by encoding tricks.
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