如何对SHA-256哈希进行十六进制编码

Question

private static string ToHex(byte[] bytes, bool upperCase)
{
    StringBuilder result = new StringBuilder(bytes.Length * 2);

    for (int i = 0; i < bytes.Length; i++)
        result.Append(bytes[i].ToString(upperCase ? "X2" : "x2"));

    return result.ToString();
}

private string hashRequestBody(string reqBody)
{
    string hashString;
    using (var sha256 = SHA256Managed.Create())
    {
        var hash = sha256.ComputeHash(Encoding.Default.GetBytes(reqBody));
        hashString = ToHex(hash, false);
    }

    MessageBox.Show(hashString);
    return hashString;
}

{“CorporateID”：“BCAAPI2016”，“SourceAccountNumber”：“0201245680”，“TransactionID”：“00000001”，“TransactionDate”：“2017-09-13”，“ReferenceID”：“Refid”，“CurrencyCode”：“IDR”，“金额”：“10000”，“ConveriaryAccountNumber”：“0201245681”，“rement1”：“Transfer Test”，“rement2”：“Online Transfer”}

银行沙盒结果:E9D06986C1ED6B063BF59AA873030013725C518631DEEF2B2147E614017C2141

矿:1C83ACC42CF905CA8AFBA27EF0640C70AD2856A366B57C17CF16F2894327676E

Answer 1

我见过几种解决这个问题的方法，但您的代码是最优雅的。我稍微重新考虑了一下，并为这个答案测试了一下。我还得到了散列：

1C83ACC42CF905CA8AFBA27EF0640C70AD2856A366B57C17CF16F2894327676E

请参见以下内容：https://dotnetfiddle.net/qbsktc

using System;
using System.Security.Cryptography;
using System.Text;

public class Program
{
    public static void Main()
    {
        Console.WriteLine(SHA256HexHashString("{\"CorporateID\":\"BCAAPI2016\",\"SourceAccountNumber\":\"0201245680\",\"TransactionID\":\"00000001\",\"TransactionDate\":\"2017-09-13\",\"ReferenceID\":\"refID\",\"CurrencyCode\":\"IDR\",\"Amount\":\"10000\",\"BeneficiaryAccountNumber\":\"0201245681\",\"Remark1\":\"Transfer Test\",\"Remark2\":\"Online Transfer\"}"));
    }

    private static string ToHex(byte[] bytes, bool upperCase)
    {
        StringBuilder result = new StringBuilder(bytes.Length * 2);
        for (int i = 0; i < bytes.Length; i++)
            result.Append(bytes[i].ToString(upperCase ? "X2" : "x2"));
        return result.ToString();
    }

    private static string SHA256HexHashString(string StringIn)
    {
        string hashString;
        using (var sha256 = SHA256Managed.Create())
        {
            var hash = sha256.ComputeHash(Encoding.Default.GetBytes(StringIn));
            hashString = ToHex(hash, false);
        }

        return hashString;
    }
}