70 citations · 293 across the 33 of their papers we have counts for
Showing 2013 · cs.CRShow all
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cs.CR2013★ 8 cited
GOTCHA Password Hackers!
Jeremiah Blocki, Manuel Blum, Anupam Datta
We introduce GOTCHAs (Generating panOptic Turing Tests to Tell Computers and Humans Apart) as a way of preventing automated offline dictionary attacks against user selected passwor…
cs.CR2013★ 21 cited
Naturally Rehearsing Passwords
Jeremiah Blocki, Manuel Blum, Anupam Datta
We introduce quantitative usability and security models to guide the design of password management schemes --- systematic strategies to help users create and remember multiple pass…