[Cryptography] Passwords: Perfect, except for being Flawed

Dave Horsfall dave at horsfall.org
Thu Feb 19 13:49:50 EST 2015


On Thu, 19 Feb 2015, ianG wrote:

> As a meta-comment on passwords:  there is a big shift underway now to 
> start doing dual factor using the person's phone.  It is now clear that 
> everyone has a phone, to some statistical certainty, and we can rely on 
> it.  So every system and his dog has now migrated to using something to 
> couple the phone and the password together.

The Australian Government has already started doing this, for welfare 
payments etc.  In the past, it was email/password/question, and now the 
question has been replaced with a code sent to your mobile phone.  In an 
uncommon display of common sense, there is a way out for those who have 
lost their phone etc, involving a telephone call (so you need access to 
another phone).

-- 
Dave Horsfall DTM (VK2KFU)  "Bliss is a MacBook with a FreeBSD server."
http://www.horsfall.org/spam.html (and check the home page whilst you're there)


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