Hugh Pickens writes "People possess a remarkable ability for recalling pictures and researchers at Newcastle University are exploiting this characteristic to create graphical passwords that they say are a thousand times more secure than ordinary textual passwords. With Draw a Secret (DAS) technology, users draw an image over a background, which is then encoded as an ordered sequence of cells. The software recalls the strokes, along with the number of times the pen is lifted. If a person chooses a flower background and then draws a butterfly as their secret password image onto it, they have to remember where they began on the grid and the order of their pen strokes. The "passpicture" is recognised as identical if the encoding is the same, not the drawing itself, which allows for some margin of error as the drawing does not have to be re-created exactly. The software has been initially designed for handheld devices such as iPhones, Blackberry and Smartphone, but could soon be expanded to other areas. "The most exciting feature is that a simple enhancement simultaneously provides significantly enhanced usability and security," says computer scientist Jeff Yan."
This discussion was created for logged-in users only, but now has been archived.
No new comments can be posted.
Many Tablet PCs come with this functionality as an alternate authentication method already. I have it on my Toshiba, though they suggest a signature, drawing a(n invisible) picture works, too.
I've no idea when Linus is going to release 2.0.24, but if he takes
too long Im going to release a 2.0.24unoff and he can sound off all
he likes.
-- Alan Cox
This has been around... (Score:1)