The password cracking attempt described involves the use of Rainbow tables. A Rainbow table is a

precomputed table for reversing cryptographic hash functions, primarily for cracking password

hashes. These tables store a mapping between the hash of a password and the correct password for

that hash, allowing for quick retrieval of the plaintext password if the hash is known. This method is

efficient for cracking passwords because it avoids the time-consuming process of computing hashes

on the fly during an attack.

Reference: Rainbow tables are a well-known tool in password cracking that leverage precomputed

hash values to expedite the cracking process1. They are particularly useful when dealing with

standard hashing algorithms where salting is not used, as they can significantly reduce the time

needed to crack a password by avoiding the need for real-time hash calculations23. This technique is

distinct from brute force attacks, which try all possible combinations, dictionary attacks, which use a

list of likely passwords, and hybrid attacks, which combine elements of brute force and dictionary

methods4.