MireaBackend/Endpoint/Configuration/Validation/SetupTokenService.cs

using Mirea.Api.Endpoint.Common.Interfaces;
using System;

namespace Mirea.Api.Endpoint.Configuration.Validation;

public class SetupTokenService : ISetupToken
{
    public ReadOnlyMemory<byte>? Token { get; private set; }

    public bool MatchToken(ReadOnlySpan<byte> token)
    {
        if (Token == null || token.Length != Token.Value.Length)
            return false;

        var token2 = Token.Value.Span;

        int result = 0;
        for (int i = 0; i < Token.Value.Length; i++)
            result |= token2[i] ^ token[i];

        return result == 0;
    }

    public void SetToken(ReadOnlySpan<byte> token)
    {
        Token = token.ToArray();
    }
}