如何使用cosmos sdk生成hd钱包密钥和地址给定的种子短语？

Question

我正在尝试使用cosmos sdk生成hd钱包私钥、公钥和无地址。下面是python中的等效实现，它生成键，按预期地址，但是当试图使用cosmos sdk在golang中生成时，它不会生成相同的键。对于python实现的等效golang版本的任何输入都是非常感谢的。谢谢。

Python

seed = Mnemonic.to_seed("blast about old claw current first paste risk involve victory edit current", passphrase="")
print("Seed: ", seed.hex())
purpose = 44
coinType = 118
account = 0
change = 0

hdwallet = HDWallet()
hdwallet.from_seed(seed=seed.hex())

for addressIndex in range(1):
    hdwallet.clean_derivation()
    hdwallet.from_index(purpose, hardened=True)
    hdwallet.from_index(coinType, hardened=True)
    hdwallet.from_index(account, hardened=True)
    hdwallet.from_index(change)
    hdwallet.from_index(addressIndex, hardened=True)

    print("---")
    print("Derivation Path: ", hdwallet.path())
    print("Private Key: ", hdwallet.private_key())
    print("Public Key: ", hdwallet.public_key())

    readdr_bytes = b"\x04" + bytearray.fromhex(hdwallet.public_key())
    readdr_bytes5 = bech32.convertbits(readdr_bytes, 8, 5)
    wallet_addr = bech32.bech32_encode("atom", readdr_bytes5)
    print("Wallet Address: ", wallet_addr)

输出

派生路径: m/44'/118'/0'/0/0‘私钥: 69668f2378b43009b16b5c6eb5e405d9224ca2a326a65a17919e567105fa4e5a公钥: 03de79435cbc8a799efc24cdce7d3b180fb014d5f19949fb8d61de3f21b9f6c1f8钱包地址: atom1qspau72rtj7g57v7lsjvmnna8vvqlvq56hcejj0m34sau0eph8mvr7qgl9avu GoLang

import (
    "github.com/tendermint/tendermint/crypto/secp256k1"
    "github.com/cosmos/cosmos-sdk/crypto/hd"
    "github.com/cosmos/go-bip39"
    "github.com/decred/dcrd/bech32"
 )

path := hd.BIP44Params{
    Purpose:      44,
    CoinType:     118,
    Account:      0,
    Change:       false,
    AddressIndex: 0,
}

seed := bip39.NewSeed("blast about old claw current first paste risk involve victory edit current","")

master, ch := hd.ComputeMastersFromSeed(seed)
priv, err := hd.DerivePrivateKeyForPath(master, ch, path.String())
if err != nil {
    log.Fatal(err)
}
var privKey = secp256k1.GenPrivKeySecp256k1(priv)
pubKey := privKey.PubKey()
fmt.Println(hex.EncodeToString(pubKey.Bytes()))

decodeString, _ := hex.DecodeString(fmt.Sprintf("04%x", pubKey.Bytes()))

// Convert test data to base32:
conv, err := bech32.ConvertBits(decodeString, 8, 5, true)
if err != nil {
    fmt.Println("Error:", err)
}
encoded, err := bech32.Encode("atom", conv)
if err != nil {
    fmt.Println("Error:", err)
}

// Show the encoded data.
fmt.Println("Atom address:", encoded)

输出

派生路径: m/44'/1022'/0'/0/0‘私钥: 84925813eac8c1dc39f170e93b3bebe0bf961ac9c46507e858ce178a1a715c26公钥: 0204a0bad86cafed2daf1b4080a3e908afcf524e2a9c24e20817920c478d537cc1钱包地址: atom1qsp3yaurlt463pl6pekgae4yudlcwk2dhxt93cxz5d5ymw3j8xmngaqef5j7p

Answer 1

这两项守则的结果因以下两个问题而有所不同：

在Go代码中，私钥被错误地导出：

• ：

在Python代码中，使用路径m/44'/118'/0'/0/0'，如hdwallet.path()的输出所示。相反，在Go代码中使用的是路径m/44'/118'/0'/0/0，如path.String()的输出所示。

要在Go代码中使用Python代码的路径，可以直接指定路径。为此，这一行：

:= hd.DerivePrivateKeyForPath(主，ch，path.String())

必须由以下各项取代：

:= hd.DerivePrivateKeyForPath(主，ch，“m/44‘/118’/0‘/0’”)

并且可以删除path变量。

通过这一更改，Go代码提供了与Python代码相同的私钥.

• 在Go代码中，私钥被错误导入。因此，公钥被错误地确定。要解决这个问题，行：

var privKey = secp256k1.GenPrivKeySecp256k1(priv)

必须由以下各项取代：

var privKey = secp256k1.PrivKey(priv)

通过此更改，Go代码提供与Python代码相同的公钥。。

Go代码的其余部分在功能上等同于Python代码，因此Go代码产生与Python代码相同的地址。

完整的Go代码是：

package main

import (
    "encoding/hex"
    "fmt"
    "log"

    "github.com/cosmos/cosmos-sdk/crypto/hd"
    "github.com/cosmos/go-bip39"
    "github.com/decred/dcrd/bech32"
    "github.com/tendermint/tendermint/crypto/secp256k1"
)

func main() {

    seed := bip39.NewSeed("blast about old claw current first paste risk involve victory edit current", "")
    fmt.Println("Seed: ", hex.EncodeToString(seed)) // Seed:  dd5ffa7088c0fa4c665085bca7096a61e42ba92e7243a8ad7fbc6975a4aeea1845c6b668ebacd024fd2ca215c6cd510be7a9815528016af3a5e6f47d1cca30dd

    master, ch := hd.ComputeMastersFromSeed(seed)
    path := "m/44'/118'/0'/0/0'"
    priv, err := hd.DerivePrivateKeyForPath(master, ch, path)
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("Derivation Path: ", path)                 // Derivation Path:  m/44'/118'/0'/0/0'
    fmt.Println("Private Key: ", hex.EncodeToString(priv)) // Private Key:  69668f2378b43009b16b5c6eb5e405d9224ca2a326a65a17919e567105fa4e5a

    var privKey = secp256k1.PrivKey(priv)
    pubKey := privKey.PubKey()
    fmt.Println("Public Key: ", hex.EncodeToString(pubKey.Bytes())) // Public Key:  03de79435cbc8a799efc24cdce7d3b180fb014d5f19949fb8d61de3f21b9f6c1f8

    decodeString, err := hex.DecodeString(fmt.Sprintf("04%x", pubKey.Bytes()))
    if err != nil {
        log.Fatal(err)
    }

    // Convert test data to base32:
    conv, err := bech32.ConvertBits(decodeString, 8, 5, true)
    if err != nil {
        fmt.Println("Error:", err)
    }
    encoded, err := bech32.Encode("atom", conv)
    if err != nil {
        fmt.Println("Error:", err)
    }

    // Show the encoded data.
    fmt.Println("Wallet Address:", encoded) // Wallet Address: atom1qspau72rtj7g57v7lsjvmnna8vvqlvq56hcejj0m34sau0eph8mvr7qgl9avu
}