/// <summary>Enables lifetime validation. </summary> /// <param name="requireExpirationTime">Defines whether the 'exp' claim must be present.</param> /// <param name="clockSkew">Defines the time span in seconds to apply.</param> public TokenValidationPolicyBuilder EnableLifetimeValidation(bool requireExpirationTime = true, int clockSkew = 300) { if (clockSkew <= 0) { ThrowHelper.ThrowArgumentOutOfRangeException_MustBeGreaterThanTimeSpanZero(ExceptionArgument.clockSkew, clockSkew); } _clockSkew = clockSkew; _control |= TokenValidationPolicy.ExpirationTimeMask; if (requireExpirationTime) { _control |= TokenValidationPolicy.ExpirationTimeRequiredMask; } return(this); }