Question
Consider five-character passwords that are selected from among the 52 lowercase and uppercase letters of the alphabet. This question is about how a system reveals
Consider five-character passwords that are selected from among the 52 lowercase and uppercase letters of the alphabet. This question is about how a system reveals whether a password is correct or incorrect.
* If the system only reveals whether the entire password is right or wrong, how many guesses would it take on average for an adversary to guess a random password?
* If the system gives feedback after each character of the password, indicating whether that character is correct, now how many guesses would it take?
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Statistical And Scientific Database Management International Working Conference Ssdbm Rome Italy June 21 23 1988 Proceedings Lncs 339
Authors: Maurizio Rafanelli ,John C. Klensin ,Per Svensson
1st Edition
354050575X, 978-3540505754
