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Update bip-0039.mediawiki
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@ -18,7 +18,7 @@
This BIP describes the implementation of a mnemonic code or mnemonic sentence -- This BIP describes the implementation of a mnemonic code or mnemonic sentence --
a group of easy to remember words -- for the generation of deterministic wallets. a group of easy to remember words -- for the generation of deterministic wallets.
It consists of two parts: generating the mnemonic, and converting it into a It consists of two parts: generating the mnemonic and converting it into a
binary seed. This seed can be later used to generate deterministic wallets using binary seed. This seed can be later used to generate deterministic wallets using
BIP-0032 or similar methods. BIP-0032 or similar methods.
@ -29,7 +29,7 @@ handling of raw binary or hexadecimal representations of a wallet seed. The
sentence could be written on paper or spoken over the telephone. sentence could be written on paper or spoken over the telephone.
This guide is meant to be a way to transport computer-generated randomness with This guide is meant to be a way to transport computer-generated randomness with
a human readable transcription. It's not a way to process user-created a human-readable transcription. It's not a way to process user-created
sentences (also known as brainwallets) into a wallet seed. sentences (also known as brainwallets) into a wallet seed.
==Generating the mnemonic== ==Generating the mnemonic==
@ -46,7 +46,7 @@ as an index into a wordlist. Finally, we convert these numbers into words and
use the joined words as a mnemonic sentence. use the joined words as a mnemonic sentence.
The following table describes the relation between the initial entropy The following table describes the relation between the initial entropy
length (ENT), the checksum length (CS) and the length of the generated mnemonic length (ENT), the checksum length (CS), and the length of the generated mnemonic
sentence (MS) in words. sentence (MS) in words.
<pre> <pre>
@ -67,12 +67,12 @@ MS = (ENT + CS) / 11
An ideal wordlist has the following characteristics: An ideal wordlist has the following characteristics:
a) smart selection of words a) smart selection of words
- the wordlist is created in such way that it's enough to type the first four - the wordlist is created in such a way that it's enough to type the first four
letters to unambiguously identify the word letters to unambiguously identify the word
b) similar words avoided b) similar words avoided
- word pairs like "build" and "built", "woman" and "women", or "quick" and "quickly" - word pairs like "build" and "built", "woman" and "women", or "quick" and "quickly"
not only make remembering the sentence difficult, but are also more error not only make remembering the sentence difficult but are also more error
prone and more difficult to guess prone and more difficult to guess
c) sorted wordlists c) sorted wordlists
@ -97,7 +97,7 @@ This seed can be later used to generate deterministic wallets using BIP-0032 or
similar methods. similar methods.
The conversion of the mnemonic sentence to a binary seed is completely independent The conversion of the mnemonic sentence to a binary seed is completely independent
from generating the sentence. This results in rather simple code; there are no from generating the sentence. This results in a rather simple code; there are no
constraints on sentence structure and clients are free to implement their own constraints on sentence structure and clients are free to implement their own
wordlists or even whole sentence generators, allowing for flexibility in wordlists wordlists or even whole sentence generators, allowing for flexibility in wordlists
for typo detection or other purposes. for typo detection or other purposes.