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DR Radio: A Grown-Up Conversation About Passwords
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HAnatomi
HAnatomi,
User Rank: Apprentice
9/19/2014 | 8:51:12 PM
Re: Not only texts but also images
I wonderif you will have a look at the document posted by a Japanese company Mnemonic Security at

 " mneme.blog.eonet.jp/default/files/outline_of_mnemonic_security.pdf "  Add h t t p / /

and a blogsite

 " mnemonicguard.blogspot.jp/ " Add h t t p / /

 that I am following.
Marilyn Cohodas
Marilyn Cohodas,
User Rank: Strategist
9/19/2014 | 9:51:26 AM
Re: Not only texts but also images
HAnatomi -- What would be an example of a known versus unkown image? and how would that work as an authentication factor?
HAnatomi
HAnatomi,
User Rank: Apprentice
9/19/2014 | 3:19:29 AM
Re: Not only texts but also images
It is perhaps impossible for anyone to remember 100 UNKNOWN images afresh.  The images to be used for passwords should be the KNOWN images of our episodic/autobiographic images, which are said to be the least vulerable to the cognitive phenomenon named "interference of memory".

 
Marilyn Cohodas
Marilyn Cohodas,
User Rank: Strategist
9/18/2014 | 9:58:50 AM
Re: Not only texts but also images
That's intereting about images. But is the human brain capable of remembering 100 images, one unique authenticator for each app or web site? Or won't that be necessary with images?
HAnatomi
HAnatomi,
User Rank: Apprentice
9/18/2014 | 1:31:34 AM
Not only texts but also images
At the root of the password problem is the cognitive phenomena called "interference of memory", by which we cannot firmly remember more than 5 text passwords on average.  What worries us is not the password, but the textual password.  The textual memory is only a small part of what we remember.  We could think of making use of the larger part of our memory that is less subject to interference of memory.  More attention could be paid to the efforts of expanding the password system to include images, particularly KNOWN images, as well as conventional texts.

 

Most of the humans are thousands times better at dealing with image memories than text memories. The former dates back to hundreds of millions of years ago while the latter's history is less than a fraction of it.I wonder what merits we have in confining ourselves in the narrow corridor of text memories when CPUs are fast enough, bandwidth broad enough, memory storage cheap enough, and cameras built in mobile devices.
Kelly Jackson Higgins
Kelly Jackson Higgins,
User Rank: Strategist
9/17/2014 | 3:15:04 PM
Re: No shortage of opinions on this topic!
Really great interview and discussion with Cormac, Sara. His provocative perspective on passwords really generated some great discussion and debate. And of course, there's no good answer for authentication. =)
Marilyn Cohodas
Marilyn Cohodas,
User Rank: Strategist
9/16/2014 | 3:54:56 PM
No shortage of opinions on this topic!
This should be lively discussion, Sara. Everyone has an opinion on passwords - and we've had our share of them on Dark Reading! Andrey Dulkin of CyberArk Research Labs weighed in in July on "Weak Password Advice From Microsoft" (http://www.darkreading.com/operations/identity-and-access-management/weak-password-advice-from-microsoft/a/d-id/1297592) and today,  Corey Nachreiner, of WatchGuard Technologies, gave a qualified "Defense of Passwords" -- as long as you use them correctly along with something else (http://www.darkreading.com/operations/in-defense-of-passwords/a/d-id/1315719?). 

Let the debate begin! 


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