From: Jameson Lopp <jameson.lopp@gmail.com>
To: Aymeric Vitte <vitteaymeric@gmail.com>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] BIP39 seeds
Date: Sun, 23 Dec 2018 16:08:13 -0500 [thread overview]
Message-ID: <CADL_X_f08N9uHFN1FBWM4iC=oSWXdLD_WU3EtfhPse7xD5WHpA@mail.gmail.com> (raw)
In-Reply-To: <68330522-7e7c-c3b4-99a9-1c68ddb56f23@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1773 bytes --]
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@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@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
[-- Attachment #2: Type: text/html, Size: 3352 bytes --]
prev parent reply other threads:[~2018-12-23 21:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-21 23:58 [bitcoin-dev] BIP39 seeds Aymeric Vitte
2018-12-23 18:46 ` Pavol Rusnak
2018-12-23 22:41 ` Aymeric Vitte
2018-12-25 0:30 ` James MacWhyte
2018-12-26 11:33 ` Aymeric Vitte
2018-12-26 18:54 ` James MacWhyte
2018-12-27 11:04 ` Aymeric Vitte
2018-12-31 16:52 ` Alan Evans
2019-01-01 19:44 ` Aymeric Vitte
2019-01-02 18:06 ` James MacWhyte
2019-01-04 0:02 ` Aymeric Vitte
2018-12-24 14:58 ` Tiago Romagnani Silveira
2018-12-23 20:55 ` Eric Scrivner
2018-12-23 21:08 ` Jameson Lopp [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CADL_X_f08N9uHFN1FBWM4iC=oSWXdLD_WU3EtfhPse7xD5WHpA@mail.gmail.com' \
--to=jameson.lopp@gmail.com \
--cc=bitcoin-dev@lists.linuxfoundation.org \
--cc=vitteaymeric@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox