107-Cosmos离线开发

cosmos地址生成

非确定性钱包地址生成

• secp256k1.GenPrivKey() 生成私钥
• 通过私钥->公钥->cmtcrypto.Address->bytes
• 转换为cosmos中 baseAccount 账户模型并获取地址

func createPrivKey() {
	privKey := secp256k1.GenPrivKey()
	fmt.Println("privKey:", hex.EncodeToString(privKey.Bytes()))

	var privKeyBytes sdk.AccAddress = privKey.PubKey().Address().Bytes()
	baseAccount := authtypes.NewBaseAccount(privKeyBytes, privKey.PubKey(), 0, 0)

	fmt.Println("address:", baseAccount.Address)
}

确定性钱包生成

	func NewHDWallet() {
	// bip39  -> 助记词
	entropy, _ := bip39.NewEntropy(128)
	mnemonic, _ := bip39.NewMnemonic(entropy)
	fmt.Println("助记词：", mnemonic)
	// 由助记词生成种子(Seed), password为空可兼容其他钱包
	seed := bip39.NewSeed(mnemonic, "")
	masterKey, ch := hd.ComputeMastersFromSeed(seed)
	priv, _ := hd.DerivePrivateKeyForPath(masterKey, ch, "m/44'/118'/0'/0/0")

	privKey := &secp256k1.PrivKey{Key: priv}
	fmt.Println("privKey:", hex.EncodeToString(privKey.Bytes()))
	accAddr, err := bech32.ConvertAndEncode(sdk.Bech32MainPrefix, privKey.PubKey().Address())
	if err != nil {
		panic(err)
	}
	fmt.Println("accAddr:", accAddr)
}