tesses-backup/TessesDedup/Account.cs

using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;

namespace TessesDedup
{
    public class Account 
    {
        [JsonProperty("id")]
        public long Id {get;set;}

        [JsonProperty("username")]
        public string Username {get;set;}

        [JsonIgnore]
        public string PasswordHash {get;set;}

        [JsonIgnore]
        public string PasswordSalt {get;set;}

        [JsonIgnore]
        public long BlockCount {get;set;}=0;

        public void NewSalt()
        {
            byte[] bytes=new byte[64];
            using(var rnd = RandomNumberGenerator.Create())
                rnd.GetBytes(bytes);
            PasswordSalt = Convert.ToBase64String(bytes);
        }
        public string GetPasswordHash(string password)
        {
            string pass = $"{password}{PasswordSalt}";
            using(var sha256Managed = SHA512.Create())
            {
                return Convert.ToBase64String(sha256Managed.ComputeHash(Encoding.UTF8.GetBytes(pass)));
            }
        }
        public bool PasswordCorrect(string password)
        {
            string hash=GetPasswordHash(password);
           
            return PasswordHash == hash ;
        }
        
    }
}