A friend gave 开发者_JAVA百科me a challenge: he encrypted a string using PHP\'s crypt function (CRYPT_STD_DES) (from PHP4). I know the salt used to encrypt, and as crypt is a one-way algorithm I must
I have a problem with describing algorithm for finding maximum rectangular area of binary data, where 1 occurs k-times more often than 0. Data is always n^2 bits like this:
I am doing a security presentation for my Computer and Information Security course in a few weeks time, and in this presentation I will be demonstrating the pros and cons of different atta开发者_运维问
An implementation of a brute-force algorithm to solve Sudoku puzzles fails if a cell is discovered in which placing any of the digits 1-9 would be an illegal move.
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Suppose I have a list of strings where each string is exactly 4 characters long and unique within the list.
Suppose I have an integral that\'s bounded on one (or both) end by (-)infinity.AFAICT, I can\'t analytically solve this problem, it takes brute force (e.g. using a Left Riemann Sum).I\'m having troubl
My web applications security is handled bySpring Security 3.02 but I can\'t find any out of the box support for Brute Force Detection.
I want to make a program that \"test passwords\" to see how long they would take to break with a basic brute force attack. So what I did was make 2 text boxes.
There\'s a website I frequent that gives codes such as GD??Q-TPY32-TPTT3-9CM9P-F2QMQ and hints that the ?? is a number and a letter. If you\'re the first to unlock the code you can redeem the modest p
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