区块链上的查询与解密

查询包含某数据的第一个交易的哈希值

数据用base58解码

using System;
using BsvSimpleLibrary;
using System.Collections.Generic;
using System.Linq;
using NBitcoin;
using NBitcoin.DataEncoders;
using BitcoinSVCryptor;namespace bsvAddress
{class Program{static void Main(string[] args){//string WifprivateKeyStr = "cVkkQ9gmQWb7M7FKKSAnKzkj5b3VJfHZath9YzvtzWqSyshpjLdX";//string destAddress = "1L5D9V3hZQ4iFsXSXv41cwhyurLteP6kH1";//test//string privateKey = ""; //(test) your private key//string txid = "dfd5dbaac7cbc322995fc2f33dabff4d947a172f97f09933a5bc5e08f47760f1";string uri = bsvConfiguration_class.RestApiUri;string network = bsvConfiguration_class.testNetwork;string privateKeyStr = "cNNfJQD8k2awDySowmH631JEJ9AVeueVkwLs9ihDkELhJhpMJVSt";string opReturnData = "HquEky7h7KGkUkaccZt1R4";string destAddress = "mxe34JQpFvKcUjJ2pA6NK2HfAEe5nVuc2j";Dictionary<string, string> response;//get address tx 得到地址所对应的所有交易RestApiAddressHistoryTx[] addressHistory = RestApi_class.getAddressHistory(uri, network, destAddress);string[] txHashes = addressHistory.Select(tx => tx.TxHash).ToArray();int batchSize = 20;RestApiTransaction[] txs;for (int i = 0; i < txHashes.Length; i += batchSize){string[] batchHashes = txHashes.Skip(i).Take(batchSize).ToArray();txs = RestApi_class.getTransactions(uri, network, batchHashes);foreach (RestApiTransaction tx in txs){string s = RestApi_class.getOpReturnData(tx, bsvConfiguration_class.encoding);if (!string.IsNullOrEmpty(s) && s.Contains("HquEky7h7KGkUkaccZt1R4")){Console.WriteLine("第一个交易的哈希地址：" + tx.Hash);break;}}}//ASE解码Base58Encoder base58Encoder = new Base58Encoder();string base58Str = "HquEky7h7KGkUkaccZt1R4";byte[] encryptedBytes = base58Encoder.DecodeData(base58Str);string privateKey1Str = "cNNfJQD8k2awDySowmH631JEJ9AVeueVkwLs9ihDkELhJhpMJVSt";string decryptedStr = AES_class.AesDecrypt(encryptedBytes, privateKey1Str);Console.WriteLine("Decrypted string: " + decryptedStr);}}
}