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OpenSSH and keystroke timings

OpenSSH and keystroke timings

Posted Sep 18, 2008 4:38 UTC (Thu) by shapr (guest, #9077)
In reply to: OpenSSH and keystroke timings by bronson
Parent article: OpenSSH and keystroke timings

Yeah, my first thought was, "send the password all at the same time."

My next thought is "try to use backspace in your password." Though that could also be found out if you always use backspace in the same position.

I suspect that use of dvorak or some other non-qwerty keyboard might make this a tetch more difficult.


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Back to line-by-line input...

Posted Sep 18, 2008 5:30 UTC (Thu) by eru (subscriber, #2753) [Link]

My next thought is "try to use backspace in your password."

Suppose ssh introduced a line-by-line mode, where editing like backspace can be done locally by the ssh client? This would of course require that all software you are trying to feed passwords to will co-operate in setting the line-mode. Maybe this would even need a new stty mode?

In the age of dinosaurs, these kinds of line-by-modes were normal on non-Unix systems. In fact it was quite uncommon for apps to react to individual characters from terminals. Editing was handled by "smart terminals" or front-end machines, which fed complete lines (or even complete filled forms) to The Real Computer.

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