From the course: ISC2 Certified Information Systems Security Professional (CISSP) (2024) Cert Prep

Unlock this course with a free trial

Join today to access over 24,700 courses taught by industry experts.

Brute-force attacks

Brute-force attacks

From the course: ISC2 Certified Information Systems Security Professional (CISSP) (2024) Cert Prep

Start my 1-month free trial Buy for my team

Brute-force attacks

“

- [Instructor] For as long as cybersecurity experts have used encryption to protect sensitive information, attackers have sought to undermine that security and gain unauthorized access to data. Over the centuries, attackers have developed a number of techniques designed to help them crack cryptographic algorithms. Brute-force attacks are the simplest form of attack against a cryptographic system. In a brute-force attack, the attacker simply guesses repeatedly at the encryption key until they stumble upon the correct value for that key, and then gain access to the encrypted information. Now, of course, guessing isn't easy, and brute-force attacks can take a very long time to complete if they even ever succeed. Brute-force attacks require very little information to wage. The attacker simply needs to have an example of encrypted text. For this reason, brute-force attacks are also called known ciphertext attacks. Earlier in this course, I shared an example of a simple rotation cipher that…

Contents