qlhb/Ropin.Inspection.Api/Wx/SignatureHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace Ropin.Inspection.Api.Wx
{
    public static class SignatureHelper
    {
        public static bool Check(SignatureModel signatureModel)
        {
            List<string> temp = new List<string>() { signatureModel.Timestamp, signatureModel.Nonce, signatureModel.Token };
            temp.Sort();

            string str = "";
            foreach (string item in temp)
            {
                str += item;
            }
            StringBuilder sha1Str = new StringBuilder();
            using (SHA1 sha = new SHA1CryptoServiceProvider())
            {
                var _byte = sha.ComputeHash(Encoding.UTF8.GetBytes(str));

                foreach (byte b in _byte)
                {
                    sha1Str.AppendFormat("{0:x2}", b);
                }
            }

            return sha1Str.ToString().Equals(signatureModel.Signature);
        }
    }
}