Multisig Account Key

AccountKeyWeightedMultiSig 是一种账户密钥类型，包含一个阈值和加权公钥（WeightedPublicKeys），后者包含一个由公钥及其权重组成的列表。

要使与 AccountKeyWeightedMultiSig 关联的账户的交易有效，必须满足以下条件： 已签名公钥的加权和应大于阈值。 _ 无效签名不应包含在交易中。 * 已签名公钥的数量应少于加权公钥的数量。

从 Web3j 和 kaia 库（web3j-ext）中导入必要的类。

使用指定的 BAOBAB_URL 创建 Web3j 实例

此外，您还可以更改默认提供商。 例如，使用alchemy提供商。

从私人密钥加载 3 多重签名证书

获取证书1的地址。 该地址将用于验证恢复的地址

定义要签署的任何信息

设置区块编号为 kaia 网络中的最新区块

依次使用所有 3 个多重签名证书对**信息进行签名，并以字符串形式输出签名结果

从 3 个报文回复中恢复地址，并与原始发件人地址进行比较

关闭 Web3j 实例

SignMsgWithMultiSigExample.java

package org.web3j.example.accountKey;

import org.web3j.tx.response.PollingTransactionReceiptProcessor;

import org.web3j.tx.response.TransactionReceiptProcessor;

import org.web3j.example.keySample;

import java.io.IOException;

import org.web3j.crypto.KlayCredentials;

import org.web3j.crypto.KlaySignatureData;

import org.web3j.crypto.Sign.SignatureData;

import org.web3j.protocol.http.HttpService;

import org.web3j.protocol.kaia.Web3j;

import org.web3j.protocol.kaia.core.method.response.KlayRecoverFromMessageResponse;

/**

*

*/

public class SignMsgWithMultiSigExample implements keySample {

/**

*

*/

public static void run() throws Exception {

Web3j web3j = Web3j.build(new HttpService(keySample.BAOBAB_URL));

KlayCredentials credentials1 = KlayCredentials.create(keySample.MULTI_KEY_privkey1,

keySample.MULTI_KEY_address);

KlayCredentials credentials2 = KlayCredentials.create(keySample.MULTI_KEY_privkey2,

keySample.MULTI_KEY_address);

KlayCredentials credentials3 = KlayCredentials.create(keySample.MULTI_KEY_privkey3,

keySample.MULTI_KEY_address);

String from = credentials1.getAddress();

String message = "0xdeadbeef";

String blockNumber = "latest";

SignatureData signature1 = KlaySignatureData.signPrefixedMessage(message, credentials1);

String result1 = KlaySignatureData.getSignatureString(signature1);

SignatureData signature2 = KlaySignatureData.signPrefixedMessage(message, credentials2);

String result2 = KlaySignatureData.getSignatureString(signature2);

SignatureData signature3 = KlaySignatureData.signPrefixedMessage(message, credentials3);

String result3 = KlaySignatureData.getSignatureString(signature3);

KlayRecoverFromMessageResponse response1 = web3j

.klayRecoverFromMessage(from, message, result1, blockNumber)

.send();

KlayRecoverFromMessageResponse response2 = web3j

.klayRecoverFromMessage(from, message, result2, blockNumber)

.send();

KlayRecoverFromMessageResponse response3 = web3j

.klayRecoverFromMessage(from, message, result3, blockNumber)

.send();

System.out.println("Original address : " + from);

System.out.println("Result address for key 1 : " + response1.getResult());

System.out.println("Result address for key 2 : " + response2.getResult());

System.out.println("Result address for key 3 : " + response3.getResult());

web3j.shutdown();

}

}

output

❯ java SignMsgWithMultiSigExample.java

Original address : 0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e

Result address for key 1 : 0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e

Result address for key 2 : 0xa2a8854b1802d8cd5de631e690817c253d6a9153

Result address for key 3 : 0xe15cd70a41dfb05e7214004d7d054801b2a2f06b