The term Rainbow Table identifies a table used in the cryptography sphere for the research of clear ciphering keys. The table is a compromise between running time and the request of resources needed to decrypt keys in hash format, generated by a certain ciphering function. This technique was conceived by Martin Hellman, but only in a theoric way as it would require too many Terabytes of memory to store all possible hashes. Later Philippe Oechslin optimized this concept so that it could be used in practice.
Rainbow Table
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