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Wie stark ist mein gewähltes Passwort

Überprüfen sie ihr Passwort.

Ist es sichere oder nicht.

Ihr Passwort ist nicht sichere, wenn es mit der Brute-Force-Methode geknackt werden kann oder in einer Datenbank mit kompromittierten Passwörtern auftaucht.

Quelle: Kaspersky

Was ist die Brute-Force-Methode:

The Brute-Force Method (also known as the Exhaustive Search Method) is a solution approach used in computer science, cryptography, and game theory. It involves systematically trying all possible cases to find a solution. Let’s explore its applications in different domains:

  1. Computer Science:

  • When efficient algorithms are not available for certain problems, the most straightforward approach is to try out all potential solutions until the correct one is found. This method is called Brute-Force Search.

  • However, the computational effort increases proportionally with the number of possible solutions. For large-scale problems, the number of potential solutions can grow exponentially.

  • Optimization techniques, such as using Gray codes instead of natural order, can reduce the computational burden. For example, when solving a four-dial combination lock, Gray codes allow moving only one dial per attempt instead of all four.

  • An important application area is computer security, where Brute-Force is used to crack passwords. Hashed passwords are difficult to reverse directly, but by calculating hash values for many possible passwords, a cracker can find a match.

  1. Cryptography:

  • Brute-Force is commonly employed to uncover weaknesses in passwords and encryption.

  • Cryptographic hash functions often secure passwords. While directly calculating a password from its hash value is practically impossible, a cracker can compute hash values for many passwords and compare them to the stored hash. If a match is found, the password is revealed.

  • Rainbow tables, which contain precomputed hash values for commonly used passwords, aid in this process.

  • As password length or the number of possible characters increases, the computational effort of Brute-Force grows significantly.

  1. Game Theory:

  • In game theory, Brute-Force methods can be used to analyze games with a finite number of possible moves.

  • By exhaustively exploring all possible moves and their outcomes, players can determine optimal strategies or identify Nash equilibria.

In summary, while Brute-Force is straightforward and guaranteed to find the correct solution, it becomes less practical for complex problems due to its computational demands. Nonetheless, it remains a valuable tool in various fields123. Is there anything else you’d like to know? 😊

Quelle: Copilot Microsoft 2024           

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