Add coinType and fullFundraiserPath fields in Config.

  This is fully compatible with cosmos-sdk v0.34.6. This library will be replaced with official cosmos-sdk library after cosmos-sdk release includes setCoinType and setFullFundraiserPath

crypto/keys/hd/hdpath.go

@@ -25,12 +25,6 @@ import (
 	"github.com/btcsuite/btcd/btcec"
 )
 
-// BIP44Prefix is the parts of the BIP32 HD path that are fixed by what we used during the fundraiser.
-const (
-	BIP44Prefix        = "44'/118'/"
-	FullFundraiserPath = BIP44Prefix + "0'/0/0"
-)
-
 // BIP44Params wraps BIP 44 params (5 level BIP 32 path).
 // To receive a canonical string representation ala
 // m / purpose' / coinType' / account' / change / addressIndex
@@ -132,8 +126,8 @@ func isHardened(field string) bool {
 // NewFundraiserParams creates a BIP 44 parameter object from the params:
 // m / 44' / 118' / account' / 0 / address_index
 // The fixed parameters (purpose', coin_type', and change) are determined by what was used in the fundraiser.
-func NewFundraiserParams(account uint32, addressIdx uint32) *BIP44Params {
-	return NewParams(44, 118, account, false, addressIdx)
+func NewFundraiserParams(account, coinType, addressIdx uint32) *BIP44Params {
+	return NewParams(44, coinType, account, false, addressIdx)
 }
 
 // DerivationPath returns the BIP44 fields as an array.

types/address.go

@@ -20,6 +20,13 @@ const (
 	// Bech32PrefixAccAddr defines the Bech32 prefix of an account's address
 	Bech32MainPrefix = "cosmos"
 
+	// Atom in https://github.com/satoshilabs/slips/blob/master/slip-0044.md
+	CoinType = 118
+
+	// BIP44Prefix is the parts of the BIP32 HD path that are fixed by
+	// what we used during the fundraiser.
+	FullFundraiserPath = "44'/118'/0'/0/0"
+
 	// PrefixAccount is the prefix for account keys
 	PrefixAccount = "acc"
 	// PrefixValidator is the prefix for validator keys

types/config.go

@@ -10,6 +10,8 @@ type Config struct {
 	mtx                 sync.RWMutex
 	sealed              bool
 	bech32AddressPrefix map[string]string
+	coinType            uint32
+	fullFundraiserPath  string
 	txEncoder           TxEncoder
 }
 
@@ -25,7 +27,9 @@ var (
 			"validator_pub":  Bech32PrefixValPub,
 			"consensus_pub":  Bech32PrefixConsPub,
 		},
-		txEncoder: nil,
+		coinType:           CoinType,
+		fullFundraiserPath: FullFundraiserPath,
+		txEncoder:          nil,
 	}
 )
 
@@ -73,6 +77,18 @@ func (config *Config) SetTxEncoder(encoder TxEncoder) {
 	config.txEncoder = encoder
 }
 
+// Set the BIP-0044 CoinType code on the config
+func (config *Config) SetCoinType(coinType uint32) {
+	config.assertNotSealed()
+	config.coinType = coinType
+}
+
+// Set the FullFundraiserPath (BIP44Prefix) on the config
+func (config *Config) SetFullFundraiserPath(fullFundraiserPath string) {
+	config.assertNotSealed()
+	config.fullFundraiserPath = fullFundraiserPath
+}
+
 // Seal seals the config such that the config state could not be modified further
 func (config *Config) Seal() *Config {
 	config.mtx.Lock()
@@ -116,3 +132,13 @@ func (config *Config) GetBech32ConsensusPubPrefix() string {
 func (config *Config) GetTxEncoder() TxEncoder {
 	return config.txEncoder
 }
+
+// Get the BIP-0044 CoinType code on the config
+func (config *Config) GetCoinType() uint32 {
+	return config.coinType
+}
+
+// Get the FullFundraiserPath (BIP44Prefix) on the config
+func (config *Config) GetFullFundraiserPath() string {
+	return config.fullFundraiserPath
+}