[bitcoin-dev] BIP39 seeds

[Jameson Lopp]

I believe it would depend upon the entropy used for the seed, as that would
affect how many bits the checksum represents.
https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki#Generating_the_mnemonic

So for a 24 word / 256 bit mnemonic the checksum is 8 bits, thus there are
8 valid checksums and if you picked a random checksum from the wordlist of
2048 words you'd have a 1 in 256 chance of picking a valid one.

On Sun, Dec 23, 2018 at 1:44 PM Aymeric Vitte via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:

> Has anybody already looked at this: given N randomly chosen words
> belonging to a BIP39 2048 words dictionary, what is the probability to
> get a "valid" BIP39 seed (ie with the right checksum)?
>
> The result looks (very) surprising to me and might have some use cases,
> just would like to know if this topic has already been discussed before
> going further
>
> --
> Move your coins by yourself (browser version): https://peersm.com/wallet
> Bitcoin transactions made simple:
> https://github.com/Ayms/bitcoin-transactions
> Zcash wallets made simple: https://github.com/Ayms/zcash-wallets
> Bitcoin wallets made simple: https://github.com/Ayms/bitcoin-wallets
> Get the torrent dynamic blocklist: http://peersm.com/getblocklist
> Check the 10 M passwords list: http://peersm.com/findmyass
> Anti-spies and private torrents, dynamic blocklist:
> http://torrent-live.org
> Peersm : http://www.peersm.com
> torrent-live: https://github.com/Ayms/torrent-live
> node-Tor : https://www.github.com/Ayms/node-Tor
> GitHub : https://www.github.com/Ayms
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev at lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20181223/1e291f73/attachment.html>