New: Migrate user passwords to Pbkdf2

This commit is contained in:
Mark McDowall 2022-07-11 20:00:10 -07:00
parent fe293ff4c3
commit 269e72a219
4 changed files with 88 additions and 10 deletions

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@ -1,4 +1,4 @@
using System;
using System;
using NzbDrone.Core.Datastore;
namespace NzbDrone.Core.Authentication
@ -8,5 +8,7 @@ namespace NzbDrone.Core.Authentication
public Guid Identifier { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public string Salt { get; set; }
public int Iterations { get; set; }
}
}

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@ -1,6 +1,8 @@
using System;
using System;
using System.Linq;
using System.Security.Cryptography;
using System.Xml.Linq;
using Microsoft.AspNetCore.Cryptography.KeyDerivation;
using NzbDrone.Common.Disk;
using NzbDrone.Common.EnvironmentInfo;
using NzbDrone.Common.Extensions;
@ -25,6 +27,10 @@ namespace NzbDrone.Core.Authentication
private readonly IAppFolderInfo _appFolderInfo;
private readonly IDiskProvider _diskProvider;
private static readonly int ITERATIONS = 10000;
private static readonly int SALT_SIZE = 128 / 8;
private static readonly int NUMBER_OF_BYTES = 256 / 8;
public UserService(IUserRepository repo, IAppFolderInfo appFolderInfo, IDiskProvider diskProvider)
{
_repo = repo;
@ -34,12 +40,15 @@ namespace NzbDrone.Core.Authentication
public User Add(string username, string password)
{
return _repo.Insert(new User
{
Identifier = Guid.NewGuid(),
Username = username.ToLowerInvariant(),
Password = password.SHA256Hash()
});
var user = new User
{
Identifier = Guid.NewGuid(),
Username = username.ToLowerInvariant()
};
SetUserHashedPassword(user, password);
return _repo.Insert(user);
}
public User Update(User user)
@ -58,7 +67,7 @@ namespace NzbDrone.Core.Authentication
if (user.Password != password)
{
user.Password = password.SHA256Hash();
SetUserHashedPassword(user, password);
}
user.Username = username.ToLowerInvariant();
@ -85,7 +94,20 @@ namespace NzbDrone.Core.Authentication
return null;
}
if (user.Password == password.SHA256Hash())
if (user.Salt.IsNullOrWhiteSpace())
{
// If password matches stored SHA256 hash, update to salted hash and verify.
if (user.Password == password.SHA256Hash())
{
SetUserHashedPassword(user, password);
return Update(user);
}
return null;
}
if (VerifyHashedPassword(user, password))
{
return user;
}
@ -98,6 +120,43 @@ namespace NzbDrone.Core.Authentication
return _repo.FindUser(identifier);
}
private User SetUserHashedPassword(User user, string password)
{
var salt = GenerateSalt();
user.Iterations = ITERATIONS;
user.Salt = Convert.ToBase64String(salt);
user.Password = GetHashedPassword(password, salt, ITERATIONS);
return user;
}
private byte[] GenerateSalt()
{
var salt = new byte[SALT_SIZE];
RandomNumberGenerator.Create().GetBytes(salt);
return salt;
}
private string GetHashedPassword(string password, byte[] salt, int iterations)
{
return Convert.ToBase64String(KeyDerivation.Pbkdf2(
password: password,
salt: salt,
prf: KeyDerivationPrf.HMACSHA512,
iterationCount: iterations,
numBytesRequested: NUMBER_OF_BYTES));
}
private bool VerifyHashedPassword(User user, string password)
{
var salt = Convert.FromBase64String(user.Salt);
var hashedPassword = GetHashedPassword(password, salt, user.Iterations);
return user.Password == hashedPassword;
}
public void Handle(ApplicationStartedEvent message)
{
if (_repo.All().Any())

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@ -0,0 +1,16 @@
using FluentMigrator;
using NzbDrone.Core.Datastore.Migration.Framework;
namespace NzbDrone.Core.Datastore.Migration
{
[Migration(174)]
public class add_salt_to_users : NzbDroneMigrationBase
{
protected override void MainDbUpgrade()
{
Alter.Table("Users")
.AddColumn("Salt").AsString().Nullable()
.AddColumn("Iterations").AsInt32().Nullable();
}
}
}

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@ -5,6 +5,7 @@
<ItemGroup>
<PackageReference Include="Dapper" Version="2.0.123" />
<PackageReference Include="MailKit" Version="2.10.1" />
<PackageReference Include="Microsoft.AspNetCore.Cryptography.KeyDerivation" Version="6.0.6" />
<PackageReference Include="Servarr.FFMpegCore" Version="4.7.0-26" />
<PackageReference Include="Servarr.FFprobe" Version="5.0.1.91" />
<PackageReference Include="System.Memory" Version="4.5.4" />