Answer:
Given:
Passwords are selected from 4 characters.
Character combinations are 26 lower case alphabetic characters.
Passwords attempts by adversary is at rate of 1 second.
To find:
Expected time to discover the correct password
Explanation:
Solution:
4 character combinations of 26 alphabetic characters at the rate of one attempt at every 1 second = 26 * 4 = 104
So 104 seconds is the time to discover the correct password. However this is the worst case scenario when adversary has to go through every possible combination. An average time or expected time to discover the correct password is:
13 * 4 = 52
You can also write it as 104 / 2 = 52 to discover the correct password. This is when at least half of the password attempts seem to be correct.
Explanation:
Here are some pic . hope it may help you.
The ways to define a variable named balance, if only it can be accessed in a single function are:
First the variable name need to begin with a letter or an underscore character (_).
Note that the variable name is one that cannot begin with a digit.
Then make sure that the variable name can only have alpha-numeric characters and underscores ( a-z, A-Z , 0-9 , and _ )
Note also that Variable names are the ones that are said to be case-sensitive (age, Age and AGE are said to be different variables)
<h3>How do you define a variable name?</h3>
The Rules for naming a variable is that A variable name is one that need to have only have letters (that is uppercase and lowercase letters), digits and also an underscore. T
Note that the first letter of a variable can be letter or an underscore.
Learn more about variable name from
brainly.com/question/13162404
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