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keys: rename CoinTypeLux → CoinTypeUTXO + LUXCoinType → CoinTypeEVM

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Name the SLIP-0044 coin-type constants by what they ARE — derivation
roots for UTXO-layout chains (X/P, 9000') and for EVM chains (60',
shared with Ethereum) — not by the brand that uses them. Same rule
as utxoAddr/evmAddr from the project-wide chain-vocabulary scrub.

SLIP-0044 values (9000, 60) unchanged. Zero external callers across
lux/node, lux/cli, lux/wallet. No backwards-compat alias; forward only.
This commit is contained in:
Hanzo AI
2026-06-01 15:37:04 -07:00
parent b857536029
commit 3de0dfe5a9
2 changed files with 13 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
keys.go
+5 -4
View File
@@ -546,7 +546,7 @@ func deriveMnemonicKeyForPath(mnemonic string, account, index uint32) ([]byte, e
}
// m/44'/60' (coin type for LUX)
key, err = key.NewChildKey(bip32.FirstHardenedChild + LUXCoinType)
key, err = key.NewChildKey(bip32.FirstHardenedChild + CoinTypeEVM)
if err != nil {
return nil, fmt.Errorf("failed to derive coin type: %w", err)
}
@@ -572,8 +572,9 @@ func deriveMnemonicKeyForPath(mnemonic string, account, index uint32) ([]byte, e
return key.Key, nil
}
// LUXCoinType is the BIP-44 coin type for LUX (60' = standard Ethereum)
const LUXCoinType = 60
// CoinTypeEVM is the SLIP-0044 coin_type for EVM chains (60', shared with
// Ethereum). C-Chain and any non-Lux L1 EVM derive under this tree.
const CoinTypeEVM = 60
// deriveMnemonicKey derives an EC private key from mnemonic using BIP44 path m/44'/60'/0'/0/{index}
func deriveMnemonicKey(mnemonic string, accountIndex uint32) ([]byte, error) {
@@ -596,7 +597,7 @@ func deriveMnemonicKey(mnemonic string, accountIndex uint32) ([]byte, error) {
}
// m/44'/60' (coin type for LUX)
key, err = key.NewChildKey(bip32.FirstHardenedChild + LUXCoinType)
key, err = key.NewChildKey(bip32.FirstHardenedChild + CoinTypeEVM)
if err != nil {
return nil, fmt.Errorf("failed to derive coin type: %w", err)
}
service_identity.go
+8 -7
View File
@@ -61,12 +61,13 @@ import (
"golang.org/x/crypto/sha3"
)
// CoinTypeLux is the SLIP-0044 coin_type for Lux P/X chains. Service
// identities derive under m/44'/9000'/<serviceIndex>'/0'/0' so they
// share the same coin-type as Lux staking keys but never collide with
// account-zero derivations (serviceIndex is hashed from servicePath,
// never 0 in practice for any well-formed path).
const CoinTypeLux = 9000
// CoinTypeUTXO is the SLIP-0044 coin_type for the UTXO-layout DAG-like
// chains — X-Chain (AVM) + P-Chain. Service identities derive under
// m/44'/9000'/<serviceIndex>'/0'/0' so they share the coin-type tree
// with X/P staking keys but never collide with account-zero derivations
// (serviceIndex is hashed from servicePath, never 0 in practice for
// any well-formed path).
const CoinTypeUTXO = 9000
// BIP44Purpose is the BIP-44 purpose constant. Pinned to 44 even though
// service identities don't carry funds — staying inside the BIP-44
@@ -163,7 +164,7 @@ func NewServiceIdentity(mnemonic, servicePath string) (*ServiceIdentity, error)
if err != nil {
return nil, fmt.Errorf("keys: derive purpose: %w", err)
}
coin, err := purpose.NewChildKey(bip32.FirstHardenedChild + CoinTypeLux)
coin, err := purpose.NewChildKey(bip32.FirstHardenedChild + CoinTypeUTXO)
if err != nil {
return nil, fmt.Errorf("keys: derive coin: %w", err)
}