「架构师训练营」作业：第 11 周

public class MyPwdCheck
{
    private readonly string _Salt = "Hello World";
    /// <summary>
    /// 用户密码验证
    /// </summary>
    /// <param name="userId">用户 Id</param>
    /// <param name="password">密码明文</param>
    /// <param name="passwordEncryption">密码密文</param>
    /// <returns></returns>
    public bool checkPW(string userId,string password,string passwordEncryption)
    {
        if(string.IsNullOrWhiteSpace(userId) 
            || string.IsNullOrWhiteSpace(password)
            || string.IsNullOrWhiteSpace(passwordEncryption))
            return false;
       
        return passwordEncryption.Equals(EncryptMd5($"{userId}{_Salt}{password}"));
    }
    /// <summary>
    /// md5 加密
    /// </summary>
    /// <param name="source"></param>
    /// <returns></returns>
    private string EncryptMd5(string source)
    {
        MD5 md5 = new MD5CryptoServiceProvider();
        byte[] targetData = md5.ComputeHash(Encoding.UTF8.GetBytes(source));
        var sb = new StringBuilder();
        for(int i = 0; i < targetData.Length; i++)
        {
            sb.Append(targetData[i].ToString("x2"));
        }
        return sb.ToString();
    }
}

class Program
{
    static void Main(string[] args)
    {
        try
        {
            string userId = "10086";
            string password = "Amy Lo";
            Console.WriteLine($"userId : {userId}");
            Console.WriteLine($"password : {password}");
            string passwordEncryption = "4be098269e6e7b60966cae74fc1cb1aa";
            Console.WriteLine($"passwordEncryption : {passwordEncryption}");
            var check = new MyPwdCheck();                
               
            Console.WriteLine();
            Console.WriteLine($"结果：{check.checkPW(userId,password,passwordEncryption)}");
        }
        catch(Exception ex)
        {
            Console.WriteLine(ex.ToString());
        }
        Console.ReadLine();
    }
}