Add notes about card entropy

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Ian Coleman
2020-10-18 23:17:52 +00:00
parent d31a0ad44b
commit 8c3a56ec4f

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<p>
<a href="https://bitcointalk.org/index.php?topic=311000.msg3345309#msg3345309" target="_blank">You are not a good source of entropy.</a>
</p>
<p>
<span>Card entropy has been implemented assuming cards are replaced, not drawn one after another.</span>
<span>A full deck with replacement generates 232 bits of entropy (21 words). A full deck without replacement generates 225 bits of entropy (21 words).</span>
<span>Card entropy changed significantly from v0.4.3 to v0.5.0. The old version can be accessed at
<a href="https://github.com/iancoleman/bip39/releases/tag/0.4.3">
https://github.com/iancoleman/bip39/releases/tag/0.4.3
</a>
or
<a href="https://web.archive.org/web/20201018232020/https://iancoleman.io/bip39/">
https://web.archive.org/web/20201018232020/https://iancoleman.io/bip39/
</a>
</span>
</p>
<h3>License</h3>
<p>
<span>Please refer to <a href="https://github.com/iancoleman/bip39/blob/master/LICENSE" target="_blank">the software license</a> for more detail.