ASP.Net身份2，双因素验证码时间跨度 [英] ASP.Net Identity 2, Two Factor Security Code timespan

问题描述

我们通过电子邮件使用2FA与ASP.Net身份2。这工作得很好大部分的时间，但在某些情况下，有通过向用户的电子邮件获得安全代码延迟，对安全代码的6分钟的窗口，然后变得太短。

We are using 2FA with ASP.Net Identity 2 via email. This works fine most of the time but in some cases there are delays with the security code getting through to users email, the 6-minute window for the security code then becomes too short.

是否有调整的2FA代码这个时间窗口的方法吗？

Is there a way of adjusting this time window for the 2FA code?

推荐答案

我觉得你必须改变的有效性。-timespan在 UserTokenProvider

I think you have to change the validity-timespan in the UserTokenProvider.

试着在你的的UserManager<以下; TApplicationUser> 实施

public static ApplicationUserManager Create(
    IdentityFactoryOptions<ApplicationUserManager> options,
    IOwinContext context)
{
    /* ...create the user store... */ 
    var manager = new ApplicationUserManager(userStore);

    /* ...all the other config stuff... */

    var dataProtectionProvider = options.DataProtectionProvider;

    if (dataProtectionProvider != null)
    {
        var tokenProvider = new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"));

        // here's what you're looking for:
        tokenProvider.TokenLifespan = TimeSpan.FromMinutes(10);  

        manager.UserTokenProvider = tokenProvider;
    }

    return manager;
}

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