Bip44确定性算法的android实现

简介

这是一个Bip44确定性算法的Android实现库，可以生成12个助记词，seed种子和根据path路径生成路径的私钥.

对Bip44确定算法不了解的可以看我之前的一篇文章：
区块链开发之确定性算法bip32，bip39，bip44

项目地址：https://github.com/wypeng2012/Bip44ForAndroid

欢迎star

support Android sdk >= 14

PS:- coin_type link

https://github.com/satoshilabs/slips/blob/master/slip-0044.md

- 如何使用

代码如下:

                    //get 12 words
                    List<String> words = Bip44Utils.generateMnemonicWords(MainActivity.this);
                    Log.e("TAG", "words: " + words.toString());

                    // get bip39 seed
                    byte[] seed = Bip44Utils.getSeed(words);
                    Log.e("TAG", "seed: " + new BigInteger(1,seed).toString(16));

                    //get PrivateKey by path
                    BigInteger pri1 = Bip44Utils.getPathPrivateKey(words,"m/44'/194'/0'/0/0");
                    Log.e("TAG", "pri1: " + pri1.toString(16));

                    BigInteger pri2 = Bip44Utils.getPathPrivateKey(words,seed,"m/44'/194'/0'/0/0");
                    Log.e("TAG", "pri2: " + pri2.toString(16));

                    byte[] pri3 = Bip44Utils.getPathPrivateKeyBytes(words, "m/44'/194'/0'/0/0");
                    Log.e("TAG", "pri3: " + new BigInteger(1,pri3).toString(16));

                    byte[] pri4 = Bip44Utils.getPathPrivateKeyBytes(words, seed,"m/44'/194'/0'/0/0");
                    Log.e("TAG", "pri4: " + new BigInteger(1,pri4).toString(16));

                    byte[] pri5 = Bip44Utils.getDefaultPathPrivateKeyBytes(words, 194);
                    Log.e("TAG", "pri5: " + new BigInteger(1,pri5).toString(16));

                    //if you use bitcoinj library,you can generate bitcoin privatekey and public key and address like this:

                    BigInteger pribtc = Bip44Utils.getPathPrivateKey(words,"m/44'/0'/0'/0/0");

                    ECKey ecKey = ECKey.fromPrivate(pribtc);

	                String publicKey = ecKey.getPublicKeyAsHex();
	                String privateKey = ecKey.getPrivateKeyEncoded(networkParameters).toString();
	                String address = ecKey.toAddress(networkParameters).toString();


                    //if you use web3j library,you can generate bitcoin privatekey and public key and address like this:
                    
				  BigInteger prieth = Bip44Utils.getPathPrivateKey(words,"m/44'/60'/0'/0/0");

                   ECKeyPair ecKeyPair = ECKeyPair.create(prieth);

	               String publicKey = Numeric.toHexStringWithPrefix(ecKeyPair.getPublicKey());
	               String privateKey = Numeric.toHexStringWithPrefix(ecKeyPair.getPrivateKey());
	               String address = "0x" + Keys.getAddress(ecKeyPair);
                    

打印结果:

words: [course, question, calm, west, basket, kitten, salmon, absorb, tool, ankle, mixed, endorse]

seed: c03f5488370482658066b96a803fcceac46b68181024a545d814344cbf7d9da9b478a20d0b95ebef268b7c24afd4540c59a4567146d45d2db891ca2576d409c7

pri1: 6ef7a396546d4fcf26865e54033ad48db858d19b5a08782014a652f4b5469037

pri2: 6ef7a396546d4fcf26865e54033ad48db858d19b5a08782014a652f4b5469037

pri3: 6ef7a396546d4fcf26865e54033ad48db858d19b5a08782014a652f4b5469037

pri4: 6ef7a396546d4fcf26865e54033ad48db858d19b5a08782014a652f4b5469037

pri5: 6ef7a396546d4fcf26865e54033ad48db858d19b5a08782014a652f4b5469037

- 如何远程依赖

1. Maven

  party.loveit
  bip44forandroidlibrary
  1.0.7
  pom

2. Gradle

compile 'party.loveit:bip44forandroidlibrary:1.0.7'

or

implementation 'party.loveit:bip44forandroidlibrary:1.0.7'

3. Ivy