dex/keygen: use ChildBIP32Std for extended key derivation #1341
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This updates the GenDeepChild helper, which is used in both client/core to setup DEX account keys from the app seed, and in client/asset/eth to derive the account private key from the wallet seed. This is especially in the eth key derivation, where the intent is to follow BIP44 with the path m/44'/60'/0'/0/0, which requires generating child keys as per BIP32 strictly. For generating DEX account keys from the app seed, it is also good from a standardness point of view to use strict BIP32 derivation. The legacy derivation is only required for Decred wallets for compatibility.
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JoeGruffins
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buck54321
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Requires decred/dcrd#2845Updates the
github.com/decred/dcrd/hdkeychain/v3require to v3.1.0.WARNING: Keys derived from the app seed are likely to be different with the updated strict BIP32 HD key derivation. This includes
Wallets such as inclient/asset/ethwhere it prepares a private key for the BIP44 path m/44'/60'/0'/0/0As such, you should not rely on any of these accounts or keys being recoverable.
This updates the
GenDeepChildhelper, which is used in both client/core to setup DEX account keys from the app seed, and in client/asset/eth to derive the account private key from the wallet seed.This is especially in the eth key derivation, where the intent is to follow BIP44 with the path m/44'/60'/0'/0/0, which requires generating child keys as per BIP32 strictly.
For generating DEX account keys from the app seed, it is also good from a standardness point of view to use strict BIP32 derivation. The legacy derivation is only required for Decred wallets for compatibility.
Resolves #1337
This eliminates the occasional error from
client/asset/eth.CreateWallet