Chip, Thank you for the input. I am trying to build to what people expect. My target market in this instance is trading exchange users crypto exchanges in particular. In this market 2FA is used extensively as a secondary or tertiary security level. As example Binance but may others use 2FA linked with Google authenticator so my potential user base will already have an app for that and just need to add a new site entry.
Duo looks to be a good product but does not seem to fit the use case as far as I can see. It is more for corporate use and is priced by user, which would make it expensive for a general web solution. It would be like using 4D Mobile REST services and having to pay for all the licenses that could entailand not knowing how many people could hit your website at a given time... I am looking at Authy as well although I do not yet understand the real differences. So I am going to read through: https://blog.devolutions.net/2016/10/most-popular-2-factor-authentication-2fa-compared and see if I can educate myself. It seems, regardless of the app used by the end user, the work in 4D would be about the same as the process is to generate a matching time sensitive key against which to match. I have been looking at https://www.codementor.io/slavko/google-two-step-authentication-otp-generation-du1082vho But I got a bit stuck at Step C: as I did not understand what was required. Regards, Dougie ________________________________________________________ telekinetix Limited- J. Douglas Cryer Phone : 01234 761759 Mobile : 07973 675 218 2nd Floor Broadway House, 4-6 The Broadway, Bedford MK40 2TE Email : jdcr...@telekinetix.com Web : http://www.telekinetix.com <http://www.telekinetix.com/> ________________________________________________________ On 08/05/2018, 15:05, "Chip Scheide" <4d_o...@pghrepository.org> wrote: personally, I do not believe anything from Google can be considered to be 'secure'... YMMV I would try a different 2FA app. My Wife's employer uses something called Duo ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
