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Code Issues Releases Wiki Activity

Clarify text in Hardened child key derivation

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Tony 2024-08-13 01:34:14 -07:00
parent 6d1c26e164
commit 1e9f65f9b6
2 changed files with 2 additions and 4 deletions
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5
ch05_wallets.adoc
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@ -1368,10 +1368,7 @@ of public keys from an xpub is very useful, but it comes with a
potential risk. Access to an xpub does not give access to child private
keys. However, because the xpub contains the chain code, if a child
private key is known, or somehow leaked, it can be used with the chain
code to derive all the other child private keys. A single leaked child
private key, together with a parent chain code, reveals all the private
keys of all the children. Worse, the child private key together with a
parent chain code can be used to deduce the parent private key.
code to derive all the other child private keys. A single leaked child private key, together with a parent chain code, can be used to deduce the parent private key. As a result, all of the child private keys of the parent are compromised.
To counter this risk, HD wallets provide an alternative derivation function
called _hardened derivation_, which breaks the relationship between

1
meta/github_contrib.adoc
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@ -168,6 +168,7 @@
<li>Thiago Arrais (thiagoarrais)</li>
<li>Thomas Kerin (afk11)</li>
<li>Tochi Obudulu (tochicool)</li>
<li>Tony Lu (tlulu)</li>
<li>Tosin (tkuye)</li>
<li>Vasil Dimov (vasild)</li>
<li>venzen</li>