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ZIP 32: fixes https://github.com/zcash/zcash/issues/4641 

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2020-07-29 19:33:49 +01:00
parent c25fc6e899
commit 60db5fe85d
2 changed files with 9 additions and 2 deletions
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6
zip-0032.html
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@ -624,11 +624,15 @@ License: MIT</pre>
of a hierarchical deterministic wallet is given by:</p>
<ul>
<li>
<span class="math">\(\mathsf{BLAKE2b}\text{-}\mathsf{256}(\texttt{“Zcash_HD_Seed_FP”}, S)\)</span>
<span class="math">\(\mathsf{BLAKE2b}\text{-}\mathsf{256}(\texttt{“Zcash_HD_Seed_FP”},\)</span>
<span class="math">\([\texttt{0x20}]\,||\,S)\)</span>
.</li>
</ul>
<p>It MAY be used to uniquely identify a particular hierarchical deterministic wallet.</p>
<p>No corresponding short tag is defined.</p>
<p>Note: a previous version of this specification did not have the
<span class="math">\(\texttt{0x20}\)</span>
byte prefixing the seed. The current specification reflects the implementation in <cite>zcashd</cite>.</p>
</section>
</section>
<section id="specification-key-encodings"><h2><span class="section-heading">Specification: Key Encodings</span><span class="section-anchor"> <a rel="bookmark" href="#specification-key-encodings"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h2>

5
zip-0032.rst
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@ -410,12 +410,15 @@ Seed Fingerprints
A "seed fingerprint" for the master seed :math:`S` of a hierarchical deterministic wallet is given by:
* :math:`\mathsf{BLAKE2b}\text{-}\mathsf{256}(\texttt{“Zcash_HD_Seed_FP”}, S)`.
* :math:`\mathsf{BLAKE2b}\text{-}\mathsf{256}(\texttt{“Zcash_HD_Seed_FP”},`:math:`[\texttt{0x20}]\,||\,S)`.
It MAY be used to uniquely identify a particular hierarchical deterministic wallet.
No corresponding short tag is defined.
Note: a previous version of this specification did not have the :math:`\texttt{0x20}` byte prefixing the seed.
The current specification reflects the implementation in `zcashd`.
Specification: Key Encodings
============================