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Edit spec #7

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Nov 20, 2018
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Edit spec #7

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Edit spec
iamwillkim Nov 20, 2018
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Update ~2018.11.8..19.31.59..ba77~.md
iamwillkim Nov 20, 2018
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8 changes: 4 additions & 4 deletions proposals/posts/~2018.11.8..19.31.59..ba77~.md
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Expand Up @@ -117,22 +117,22 @@ Optional string, used when turning generated BIP39 mnemonics into BIP32 seeds.
<li>Convert the seed (mnemonic phrase) plus the optional passphrase into a BIP32 seed, as specified in BIP39</li>
<li>Generate a BIP32 master node from the BIP32 seed (as per BIP32)</li>
<li>Derive the wallet at the path m/44'/60'/0'/0/0.</li>
<li>To derive an Ethereum address from the private key, use secp256k1 to get the uncompressed public key from the private key, then hash its last 64 bytes with keccak-256 and take the last 20 bytes from the result.</li>
<li>To derive an Ethereum address from the private key, use secp256k1 to get the uncompressed public key from the private key, then hash its last 64 bytes with keccak-256 and take the last 20 bytes from the result. If outputting addresses as strings rather than hex valules, the strings should be checksummed as per [EIP-55 (https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md).</li>
</ul>
</li>
<li>For the type "network", derive a seed as follows:
<ul>
<li>Convert the "management" seed (mnemonic phrase) plus the optional passphrase into a BIP32 seed, as specified in BIP39</li>
<li>Append the revision number to the string "network" (ie "network0")</li>
<li>Append the revision number to the string "network" (ie "network0"); the revision number defaults to 0</li>
<li>Append that whole string to the BIP32 seed</li>
<li>Hash the "salted" BIP32 seed using SHA2-256</li>
</ul>
</li>
<li>Optionally, for the type "network", derive encryption and authentication keys as follows (identical to `++pit:nu:crub:crypto` in Urbit's standard library, [zuse](https://github.com/urbit/arvo/blob/master/sys/zuse.hoon)):
<ul>
<li>Hash the "network" seed using SHA2-512</li>
<li>Take the first 256 bits of the result as the encryption private key</li>
<li>Take last 256 bits of the result as the authentication private key</li>
<li>Take the first 256 bits of the result as the authentication private key</li>
<li>Take last 256 bits of the result as the encryption private key</li>
<li>Derive public keys for those using ed25519</li>
</ul>
</li>
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