What Is Rainbow Table Attack?
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A rainbow table attack is a form of cryptanalysis which uses precomputed hashes to crack passwords or other data that has been encrypted with a hashing algorithm. It works by taking large lists of plaintext words and computing the hash for each one. The resulting hashes are then stored in a “rainbow table”, which is essentially a lookup table that can be used to quickly check whether a given password produces a certain hash. This allows the attacker to try multiple passwords until they find the one that produces the correct hash, thus bypassing the need to compute the hash in real time.