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basic priciple

2019-02-25 22:54:42   9  举报

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AI智能生成

HD钱包java实现

HD钱包

java

eth

btc

模版推荐

作者其他创作

大纲/内容

椭圆曲线加密

公式:y2 = x3 + ax + b, 4a3 + 27b2 != 0

K=k*G

ETH

BIP39

熵

SecureRandom.nextBytes(byte[16])

ECKeyPair(web3j)

private key（BIGINTEGER)

public key(BIGINTEGER)

Numeric.toHexStringWithPrefix == 0x + biginteger.toString(radix)

BIP32

DeterministicKeyChain.build from DeterministicSeed

DeterministicKeyChain deterministicKeyChain = DeterministicKeyChain.builder().seed(deterministicSeed).build();

DeterministicSeed种子

DeterministicHierarchy分层确定性实现

DeterministicKey分层确定性密钥对

HDKeyDerivation.deriveChildKey从pubk prik求导的核心方法

BIP44

m / purpose' / coin_type' / account' / change / address_index

M/44'/0'/0'/0/2

address

助记词

MnemonicCode.toMnemonic(entropy)(bitcoinj)

DeterministicSeed(bitcoinj)

ERC20BIPENTRY

FunctionEncoder.encode(Function)

RawTransaction.createTransaction

TransactionUtils.generateTransactionHashHexEncoded(rawTransaction, credentials)

TransactionEncoder.signMessage(rawTransaction, credentials)

Numeric.toHexString(bytes)

ETHBIPENTRY

RawTransaction.createEtherTransaction

TransactionUtils.generateTransactionHashHexEncoded

TransactionEncoder.signMessage(rawTransaction, credentials)

Numeric.toHexString(bytes)

BTCBIPENTRY

Transaction transaction = new Transaction(btcParams);

UTXOGetter.getBTCUTXOs

transaction.addOutput 发送和找零

transaction.addSignedInput 添加utxo

HexUtil.toHex(transaction.unsafeBitcoinSerialize()）

 Collect

Get Started

corresponding service

 Collect

Get Started

CRF

 Collect

Get Started

dog category

 Collect

Get Started

BASIC Fraud Flow For ID Team

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