Top "Brute-force" questions

In cryptography, a brute-force attack, or exhaustive key search, is a strategy that can, in theory, be used against any encrypted data.

Preventing Brute Force Using Node and Express JS

I'm building a website using Node and Express JS and would like to throttle invalid login attempts. Both to prevent …

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Limiting user login attempts in PHP

I've seen web apps with limitations for user login attempts. Is it a security necessity and, if so, why? For …

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Spring Security: how to implement Brute Force Detection (BFD)?

My web applications security is handled by Spring Security 3.02 but I can't find any out of the box support for …

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Finding a legacy firebird/Interbase database password

I have a customer that has an old non-existant application; he had a problem with the company that made the …

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Bruteforce GPG passphrase using script

I have forgotten my passphrase for my gpg key on linux. Can someone please help me write a simple script …

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Brute-force/DoS prevention in PHP

I am trying to write a script to prevent brute-force login attempts in a website I'm building. The logic goes …

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Why time complexity of brute force algorithm is O(n*m)?

I am using the following brute force algorithm for searching a string inside another string. As I know, the number …

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How does being able to factor large numbers determine the security of popular encryption algorithms?

How is the encryption algorithm's security dependent on factoring large numbers? For example, I've read on some math-programming forums that …

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increasing time delay for login to stop bruteforcing, good idea?

I have set up my db to log every failed login attempt. I thought I would multiply the number of …

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Non Brute Force Solution to Project Euler 25

Project Euler problem 25: The Fibonacci sequence is defined by the recurrence relation: Fn = Fn−1 + Fn−2, where F1 = 1 and F2 = 1. Hence …

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