|Subject||Computer and Network Security|
|NU Year||Set: 1.(c) Marks: 1+7 Year: 2014|
A brute force attack is a trial-and-error method used to obtain information such as a user password or personal identification number (PIN). In a brute force attack, automated software is used to generate a large number of consecutive guesses as to the value of the desired data. Brute force attacks may be used by criminals to crack encrypted data, or by security, analysts to test an organization's network security.
Delving deeper into cryptanalysis, in this module, we will discuss different types of attacks, explain frequency analysis and different use cases, explain the significance of polyalphabetic ciphers, and discuss the Vigenere Cipher. When you have completed this module, you will have an appreciation of the different types of attacks and under what kinds of situations, each might be applicable.